tests: consistently use fixture_dir

3855bc58 · Randy Döring · 4c377351 · 3855bc58 · 3855bc58 · 3855bc58
Commit 3855bc58 authored Apr 16, 2023 by Randy Döring
17 changed files
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -282,6 +282,11 @@ def http() -> Iterator[type[httpretty.httpretty]]:
        yield httpretty
+@pytest.fixture
+def project_root() -> Path:
+    return Path(__file__).parent.parent
 @pytest.fixture(scope="session")
 def fixture_base() -> Path:
    return Path(__file__).parent / "fixtures"
@@ -417,11 +422,6 @@ def project_factory(
    return _factory
-@pytest.fixture
-def project_root() -> Path:
-    return Path(__file__).parent.parent
 @pytest.fixture(autouse=True)
 def set_simple_log_formatter() -> None:
    """

--- a/tests/console/commands/self/test_update.py
+++ b/tests/console/commands/self/test_update.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -20,12 +19,11 @@ if TYPE_CHECKING:
    from tests.helpers import TestRepository
    from tests.types import CommandTesterFactory
+    from tests.types import FixtureDirGetter
-FIXTURES = Path(__file__).parent.joinpath("fixtures")
+@pytest.fixture
-@pytest.fixture()
+def setup(mocker: MockerFixture, fixture_dir: FixtureDirGetter) -> None:
-def setup(mocker: MockerFixture, fixture_dir: Path):
    mocker.patch.object(
        Executor,
        "_download",
@@ -46,7 +44,7 @@ def test_self_update_can_update_from_recommended_installation(
    tester: CommandTester,
    repo: TestRepository,
    installed: TestRepository,
-):
+) -> None:
    new_version = Version.parse(__version__).next_minor().text
    old_poetry = Package("poetry", __version__)

--- a/tests/console/commands/test_build.py
+++ b/tests/console/commands/test_build.py
@@ -3,23 +3,26 @@ from __future__ import annotations
 import shutil
 import tarfile
-from pathlib import Path
 from typing import TYPE_CHECKING
 from poetry.factory import Factory
 if TYPE_CHECKING:
+    from pathlib import Path
    from poetry.utils.env import VirtualEnv
    from tests.types import CommandTesterFactory
+    from tests.types import FixtureDirGetter
 def test_build_with_multiple_readme_files(
-    tmp_path: Path, tmp_venv: VirtualEnv, command_tester_factory: CommandTesterFactory
+    fixture_dir: FixtureDirGetter,
-):
+    tmp_path: Path,
-    source_dir = (
+    tmp_venv: VirtualEnv,
-        Path(__file__).parent.parent.parent / "fixtures" / "with_multiple_readme_files"
+    command_tester_factory: CommandTesterFactory,
-    )
+) -> None:
+    source_dir = fixture_dir("with_multiple_readme_files")
    target_dir = tmp_path / "project"
    shutil.copytree(str(source_dir), str(target_dir))

--- a/tests/console/commands/test_check.py
+++ b/tests/console/commands/test_check.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -11,6 +10,7 @@ if TYPE_CHECKING:
    from pytest_mock import MockerFixture
    from tests.types import CommandTesterFactory
+    from tests.types import FixtureDirGetter
 @pytest.fixture()
@@ -18,7 +18,7 @@ def tester(command_tester_factory: CommandTesterFactory) -> CommandTester:
    return command_tester_factory("check")
-def test_check_valid(tester: CommandTester):
+def test_check_valid(tester: CommandTester) -> None:
    tester.execute()
    expected = """\
@@ -28,17 +28,14 @@ All set!
    assert tester.io.fetch_output() == expected
-def test_check_invalid(mocker: MockerFixture, tester: CommandTester):
+def test_check_invalid(
+    mocker: MockerFixture, tester: CommandTester, fixture_dir: FixtureDirGetter
+) -> None:
    from poetry.toml import TOMLFile
    mocker.patch(
        "poetry.poetry.Poetry.file",
-        return_value=TOMLFile(
+        return_value=TOMLFile(fixture_dir("invalid_pyproject") / "pyproject.toml"),
-            Path(__file__).parent.parent.parent
-            / "fixtures"
-            / "invalid_pyproject"
-            / "pyproject.toml"
-        ),
        new_callable=mocker.PropertyMock,
    )
@@ -61,13 +58,12 @@ Warning: Deprecated classifier\
    assert tester.io.fetch_error() == expected
-def test_check_private(mocker: MockerFixture, tester: CommandTester):
+def test_check_private(
+    mocker: MockerFixture, tester: CommandTester, fixture_dir: FixtureDirGetter
+) -> None:
    mocker.patch(
        "poetry.factory.Factory.locate",
-        return_value=Path(__file__).parent.parent.parent
+        return_value=fixture_dir("private_pyproject") / "pyproject.toml",
-        / "fixtures"
-        / "private_pyproject"
-        / "pyproject.toml",
    )
    tester.execute()

--- a/tests/console/conftest.py
+++ b/tests/console/conftest.py
@@ -2,7 +2,6 @@ from __future__ import annotations
 import os
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -22,6 +21,7 @@ from tests.helpers import mock_clone
 if TYPE_CHECKING:
    from collections.abc import Iterator
+    from pathlib import Path
    from pytest_mock import MockerFixture
@@ -31,6 +31,7 @@ if TYPE_CHECKING:
    from poetry.utils.env import Env
    from tests.conftest import Config
    from tests.types import CommandTesterFactory
+    from tests.types import FixtureDirGetter
    from tests.types import ProjectFactory
@@ -96,11 +97,12 @@ def project_directory() -> str:
 @pytest.fixture
-def poetry(project_directory: str, project_factory: ProjectFactory) -> Poetry:
+def poetry(
-    return project_factory(
+    project_directory: str,
-        name="simple",
+    project_factory: ProjectFactory,
-        source=Path(__file__).parent.parent / "fixtures" / project_directory,
+    fixture_dir: FixtureDirGetter,
-    )
+) -> Poetry:
+    return project_factory(name="simple", source=fixture_dir(project_directory))
 @pytest.fixture

--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -68,13 +68,6 @@ def get_dependency(
    return Factory.create_dependency(name, constraint or "*", groups=groups)
-def fixture(path: str | None = None) -> Path:
-    if path:
-        return FIXTURE_PATH / path
-    else:
-        return FIXTURE_PATH
 def copy_or_symlink(source: Path, dest: Path) -> None:
    if dest.is_symlink() or dest.is_file():
        dest.unlink()  # missing_ok is only available in Python >= 3.8
@@ -113,7 +106,7 @@ def mock_clone(
    parsed = ParsedUrl.parse(url)
    path = re.sub(r"(.git)?$", "", parsed.pathname.lstrip("/"))
-    folder = Path(__file__).parent / "fixtures" / "git" / parsed.resource / path
+    folder = FIXTURE_PATH / "git" / parsed.resource / path
    if not source_root:
        source_root = Path(Config.create().get("cache-dir")) / "src"
@@ -128,8 +121,7 @@ def mock_clone(
 def mock_download(url: str, dest: Path) -> None:
    parts = urllib.parse.urlparse(url)
-    fixtures = Path(__file__).parent / "fixtures"
+    fixture = FIXTURE_PATH / parts.path.lstrip("/")
-    fixture = fixtures / parts.path.lstrip("/")
    copy_or_symlink(fixture, dest)

--- a/tests/inspection/test_info.py
+++ b/tests/inspection/test_info.py
 from __future__ import annotations
-from pathlib import Path
 from subprocess import CalledProcessError
 from typing import TYPE_CHECKING
@@ -13,10 +12,11 @@ from poetry.utils.env import VirtualEnv
 if TYPE_CHECKING:
+    from pathlib import Path
    from pytest_mock import MockerFixture
-FIXTURE_DIR_BASE = Path(__file__).parent.parent / "fixtures"
+    from tests.types import FixtureDirGetter
-FIXTURE_DIR_INSPECTIONS = FIXTURE_DIR_BASE / "inspection"
 @pytest.fixture(autouse=True)
@@ -25,13 +25,13 @@ def pep517_metadata_mock() -> None:
 @pytest.fixture
-def demo_sdist() -> Path:
+def demo_sdist(fixture_dir: FixtureDirGetter) -> Path:
-    return FIXTURE_DIR_BASE / "distributions" / "demo-0.1.0.tar.gz"
+    return fixture_dir("distributions") / "demo-0.1.0.tar.gz"
 @pytest.fixture
-def demo_wheel() -> Path:
+def demo_wheel(fixture_dir: FixtureDirGetter) -> Path:
-    return FIXTURE_DIR_BASE / "distributions" / "demo-0.1.0-py2.py3-none-any.whl"
+    return fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl"
 @pytest.fixture
@@ -128,15 +128,15 @@ def test_info_from_bdist(demo_wheel: Path) -> None:
    demo_check_info(info)
-def test_info_from_poetry_directory() -> None:
+def test_info_from_poetry_directory(fixture_dir: FixtureDirGetter) -> None:
    info = PackageInfo.from_directory(
-        FIXTURE_DIR_INSPECTIONS / "demo", disable_build=True
+        fixture_dir("inspection") / "demo", disable_build=True
    )
    demo_check_info(info)
 def test_info_from_poetry_directory_fallback_on_poetry_create_error(
-    mocker: MockerFixture,
+    mocker: MockerFixture, fixture_dir: FixtureDirGetter
 ) -> None:
    mock_create_poetry = mocker.patch(
        "poetry.inspection.info.Factory.create_poetry", side_effect=RuntimeError
@@ -146,16 +146,16 @@ def test_info_from_poetry_directory_fallback_on_poetry_create_error(
        "poetry.inspection.info.get_pep517_metadata"
    )
-    PackageInfo.from_directory(FIXTURE_DIR_INSPECTIONS / "demo_poetry_package")
+    PackageInfo.from_directory(fixture_dir("inspection") / "demo_poetry_package")
    assert mock_create_poetry.call_count == 1
    assert mock_get_poetry_package.call_count == 1
    assert mock_get_pep517_metadata.call_count == 1
-def test_info_from_requires_txt() -> None:
+def test_info_from_requires_txt(fixture_dir: FixtureDirGetter) -> None:
    info = PackageInfo.from_metadata(
-        FIXTURE_DIR_INSPECTIONS / "demo_only_requires_txt.egg-info"
+        fixture_dir("inspection") / "demo_only_requires_txt.egg-info"
    )
    assert info is not None
    demo_check_info(info)
@@ -171,9 +171,9 @@ def test_info_from_setup_cfg(demo_setup_cfg: Path) -> None:
    demo_check_info(info, requires_dist={"package"})
-def test_info_no_setup_pkg_info_no_deps() -> None:
+def test_info_no_setup_pkg_info_no_deps(fixture_dir: FixtureDirGetter) -> None:
    info = PackageInfo.from_directory(
-        FIXTURE_DIR_INSPECTIONS / "demo_no_setup_pkg_info_no_deps",
+        fixture_dir("inspection") / "demo_no_setup_pkg_info_no_deps",
        disable_build=True,
    )
    assert info.name == "demo"
@@ -250,8 +250,8 @@ def test_info_setup_missing_mandatory_should_trigger_pep517(
    assert spy.call_count == 1
-def test_info_prefer_poetry_config_over_egg_info() -> None:
+def test_info_prefer_poetry_config_over_egg_info(fixture_dir: FixtureDirGetter) -> None:
    info = PackageInfo.from_directory(
-        FIXTURE_DIR_INSPECTIONS / "demo_with_obsolete_egg_info"
+        fixture_dir("inspection") / "demo_with_obsolete_egg_info"
    )
    demo_check_info(info)
--- a/tests/installation/test_pip_installer.py
+++ b/tests/installation/test_pip_installer.py
@@ -24,6 +24,7 @@ if TYPE_CHECKING:
    from poetry.utils.env import VirtualEnv
    from tests.conftest import Config
+    from tests.types import FixtureDirGetter
 @pytest.fixture
@@ -278,7 +279,10 @@ def test_install_with_trusted_host(config: Config, env: NullEnv) -> None:
 def test_install_directory_fallback_on_poetry_create_error(
-    mocker: MockerFixture, tmp_venv: VirtualEnv, pool: RepositoryPool
+    mocker: MockerFixture,
+    tmp_venv: VirtualEnv,
+    pool: RepositoryPool,
+    fixture_dir: FixtureDirGetter,
 ) -> None:
    mock_create_poetry = mocker.patch(
        "poetry.factory.Factory.create_poetry", side_effect=RuntimeError
@@ -293,9 +297,7 @@ def test_install_directory_fallback_on_poetry_create_error(
        "demo",
        "1.0.0",
        source_type="directory",
-        source_url=str(
+        source_url=str(fixture_dir("inspection") / "demo_poetry_package"),
-            Path(__file__).parent.parent / "fixtures/inspection/demo_poetry_package"
-        ),
    )
    installer = PipInstaller(tmp_venv, NullIO(), pool)

--- a/tests/masonry/builders/test_editable_builder.py
+++ b/tests/masonry/builders/test_editable_builder.py
@@ -28,51 +28,40 @@ if TYPE_CHECKING:
    from pytest_mock import MockerFixture
    from poetry.poetry import Poetry
+    from tests.types import FixtureDirGetter
 @pytest.fixture()
-def simple_poetry() -> Poetry:
+def simple_poetry(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("simple_project"))
-        Path(__file__).parent.parent.parent / "fixtures" / "simple_project"
-    )
    return poetry
 @pytest.fixture()
-def project_with_include() -> Poetry:
+def project_with_include(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("with-include"))
-        Path(__file__).parent.parent.parent / "fixtures" / "with-include"
-    )
    return poetry
 @pytest.fixture()
-def extended_poetry() -> Poetry:
+def extended_poetry(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("extended_project"))
-        Path(__file__).parent.parent.parent / "fixtures" / "extended_project"
-    )
    return poetry
 @pytest.fixture()
-def extended_without_setup_poetry() -> Poetry:
+def extended_without_setup_poetry(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("extended_project_without_setup"))
-        Path(__file__).parent.parent.parent
-        / "fixtures"
-        / "extended_project_without_setup"
-    )
    return poetry
 @pytest.fixture
-def with_multiple_readme_files() -> Poetry:
+def with_multiple_readme_files(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("with_multiple_readme_files"))
-        Path(__file__).parent.parent.parent / "fixtures" / "with_multiple_readme_files"
-    )
    return poetry
@@ -235,9 +224,11 @@ def test_builder_falls_back_on_setup_and_pip_for_packages_with_build_scripts(
    assert [] == env.executed
-def test_builder_setup_generation_runs_with_pip_editable(tmp_path: Path) -> None:
+def test_builder_setup_generation_runs_with_pip_editable(
+    fixture_dir: FixtureDirGetter, tmp_path: Path
+) -> None:
    # create an isolated copy of the project
-    fixture = Path(__file__).parent.parent.parent / "fixtures" / "extended_project"
+    fixture = fixture_dir("extended_project")
    extended_project = tmp_path / "extended_project"
    shutil.copytree(fixture, extended_project)

--- a/tests/mixology/version_solver/test_unsolvable.py
+++ b/tests/mixology/version_solver/test_unsolvable.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 from poetry.factory import Factory
@@ -13,6 +12,7 @@ if TYPE_CHECKING:
    from poetry.repositories import Repository
    from tests.mixology.version_solver.conftest import Provider
+    from tests.types import FixtureDirGetter
 def test_no_version_matching_constraint(
@@ -94,11 +94,13 @@ Because myapp depends on both foo (1.0.0) and foo (2.0.0), version solving faile
 def test_disjoint_root_constraints_path_dependencies(
-    root: ProjectPackage, provider: Provider, repo: Repository
+    root: ProjectPackage,
+    provider: Provider,
+    repo: Repository,
+    fixture_dir: FixtureDirGetter,
 ) -> None:
    provider.set_package_python_versions("^3.7")
-    fixtures = Path(__file__).parent.parent.parent / "fixtures"
+    project_dir = fixture_dir("with_conditional_path_deps")
-    project_dir = fixtures.joinpath("with_conditional_path_deps")
    dependency1 = Factory.create_dependency("demo", {"path": project_dir / "demo_one"})
    root.add_dependency(dependency1)
    dependency2 = Factory.create_dependency("demo", {"path": project_dir / "demo_two"})

--- a/tests/packages/test_locker.py
+++ b/tests/packages/test_locker.py
@@ -737,14 +737,13 @@ content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77
 def test_root_extras_dependencies_are_ordered(
-    locker: Locker, root: ProjectPackage
+    locker: Locker, root: ProjectPackage, fixture_base: Path
 ) -> None:
-    root_dir = Path(__file__).parent.parent.joinpath("fixtures")
+    Factory.create_dependency("B", "1.0.0", root_dir=fixture_base)
-    Factory.create_dependency("B", "1.0.0", root_dir=root_dir)
+    Factory.create_dependency("C", "1.0.0", root_dir=fixture_base)
-    Factory.create_dependency("C", "1.0.0", root_dir=root_dir)
+    package_first = Factory.create_dependency("first", "1.0.0", root_dir=fixture_base)
-    package_first = Factory.create_dependency("first", "1.0.0", root_dir=root_dir)
+    package_second = Factory.create_dependency("second", "1.0.0", root_dir=fixture_base)
-    package_second = Factory.create_dependency("second", "1.0.0", root_dir=root_dir)
+    package_third = Factory.create_dependency("third", "1.0.0", root_dir=fixture_base)
-    package_third = Factory.create_dependency("third", "1.0.0", root_dir=root_dir)
    root.extras = {
        "C": [package_third, package_second, package_first],
@@ -834,25 +833,24 @@ content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77
 def test_locker_dumps_dependency_information_correctly(
-    locker: Locker, root: ProjectPackage
+    locker: Locker, root: ProjectPackage, fixture_base: Path
 ) -> None:
-    root_dir = Path(__file__).parent.parent.joinpath("fixtures")
    package_a = get_package("A", "1.0.0")
    package_a.add_dependency(
        Factory.create_dependency(
-            "B", {"path": "project_with_extras", "develop": True}, root_dir=root_dir
+            "B", {"path": "project_with_extras", "develop": True}, root_dir=fixture_base
        )
    )
    package_a.add_dependency(
        Factory.create_dependency(
            "C",
            {"path": "directory/project_with_transitive_directory_dependencies"},
-            root_dir=root_dir,
+            root_dir=fixture_base,
        )
    )
    package_a.add_dependency(
        Factory.create_dependency(
-            "D", {"path": "distributions/demo-0.1.0.tar.gz"}, root_dir=root_dir
+            "D", {"path": "distributions/demo-0.1.0.tar.gz"}, root_dir=fixture_base
        )
    )
    package_a.add_dependency(
@@ -969,15 +967,14 @@ content-hash = "115cf985d932e9bf5f540555bbdd75decbb62cac81e399375fc19f6277f8c1d8
 def test_locker_dumps_dependency_extras_in_correct_order(
-    locker: Locker, root: ProjectPackage
+    locker: Locker, root: ProjectPackage, fixture_base: Path
 ) -> None:
-    root_dir = Path(__file__).parent.parent.joinpath("fixtures")
    package_a = get_package("A", "1.0.0")
-    Factory.create_dependency("B", "1.0.0", root_dir=root_dir)
+    Factory.create_dependency("B", "1.0.0", root_dir=fixture_base)
-    Factory.create_dependency("C", "1.0.0", root_dir=root_dir)
+    Factory.create_dependency("C", "1.0.0", root_dir=fixture_base)
-    package_first = Factory.create_dependency("first", "1.0.0", root_dir=root_dir)
+    package_first = Factory.create_dependency("first", "1.0.0", root_dir=fixture_base)
-    package_second = Factory.create_dependency("second", "1.0.0", root_dir=root_dir)
+    package_second = Factory.create_dependency("second", "1.0.0", root_dir=fixture_base)
-    package_third = Factory.create_dependency("third", "1.0.0", root_dir=root_dir)
+    package_third = Factory.create_dependency("third", "1.0.0", root_dir=fixture_base)
    package_a.extras = {
        "C": [package_third, package_second, package_first],

--- a/tests/plugins/test_plugin_manager.py
+++ b/tests/plugins/test_plugin_manager.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -21,8 +20,7 @@ if TYPE_CHECKING:
    from pytest_mock import MockerFixture
    from tests.conftest import Config
+    from tests.types import FixtureDirGetter
-CWD = Path(__file__).parent.parent / "fixtures" / "simple_project"
 class ManagerFactory(Protocol):
@@ -46,13 +44,14 @@ class InvalidPlugin:
        poetry.package.version = "9.9.9"
-@pytest.fixture()
+@pytest.fixture
-def poetry(tmp_path: Path, config: Config) -> Poetry:
+def poetry(fixture_dir: FixtureDirGetter, config: Config) -> Poetry:
+    project_path = fixture_dir("simple_project")
    poetry = Poetry(
-        CWD / "pyproject.toml",
+        project_path / "pyproject.toml",
        {},
        ProjectPackage("simple-project", "1.2.3"),
-        Locker(CWD / "poetry.lock", {}),
+        Locker(project_path / "poetry.lock", {}),
        config,
    )
@@ -82,7 +81,7 @@ def test_load_plugins_and_activate(
    poetry: Poetry,
    io: BufferedIO,
    with_my_plugin: None,
-):
+) -> None:
    manager = manager_factory()
    manager.load_plugins()
    manager.activate(poetry, io)
@@ -106,7 +105,7 @@ def test_load_plugins_with_invalid_plugin(
    poetry: Poetry,
    io: BufferedIO,
    with_invalid_plugin: None,
-):
+) -> None:
    manager = manager_factory()
    with pytest.raises(ValueError):
@@ -118,7 +117,7 @@ def test_load_plugins_with_plugins_disabled(
    poetry: Poetry,
    io: BufferedIO,
    with_my_plugin: None,
-):
+) -> None:
    no_plugin_manager.load_plugins()
    assert poetry.package.version.text == "1.2.3"

--- a/tests/puzzle/test_provider.py
+++ b/tests/puzzle/test_provider.py
 from __future__ import annotations
-from pathlib import Path
 from subprocess import CalledProcessError
 from typing import TYPE_CHECKING
@@ -29,6 +28,8 @@ from tests.helpers import get_dependency
 if TYPE_CHECKING:
    from pytest_mock import MockerFixture
+    from tests.types import FixtureDirGetter
 SOME_URL = "https://example.com/path.tar.gz"
@@ -157,7 +158,7 @@ def test_search_for_direct_origin_and_extras(
 @pytest.mark.parametrize("value", [True, False])
-def test_search_for_vcs_retains_develop_flag(provider: Provider, value: bool):
+def test_search_for_vcs_retains_develop_flag(provider: Provider, value: bool) -> None:
    dependency = VCSDependency(
        "demo", "git", "https://github.com/demo/demo.git", develop=value
    )
@@ -165,7 +166,7 @@ def test_search_for_vcs_retains_develop_flag(provider: Provider, value: bool):
    assert package.develop == value
-def test_search_for_vcs_setup_egg_info(provider: Provider):
+def test_search_for_vcs_setup_egg_info(provider: Provider) -> None:
    dependency = VCSDependency("demo", "git", "https://github.com/demo/demo.git")
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -183,7 +184,7 @@ def test_search_for_vcs_setup_egg_info(provider: Provider):
    }
-def test_search_for_vcs_setup_egg_info_with_extras(provider: Provider):
+def test_search_for_vcs_setup_egg_info_with_extras(provider: Provider) -> None:
    dependency = VCSDependency(
        "demo", "git", "https://github.com/demo/demo.git", extras=["foo"]
    )
@@ -203,7 +204,7 @@ def test_search_for_vcs_setup_egg_info_with_extras(provider: Provider):
    }
-def test_search_for_vcs_read_setup(provider: Provider, mocker: MockerFixture):
+def test_search_for_vcs_read_setup(provider: Provider, mocker: MockerFixture) -> None:
    mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
    dependency = VCSDependency("demo", "git", "https://github.com/demo/demo.git")
@@ -225,7 +226,7 @@ def test_search_for_vcs_read_setup(provider: Provider, mocker: MockerFixture):
 def test_search_for_vcs_read_setup_with_extras(
    provider: Provider, mocker: MockerFixture
-):
+) -> None:
    mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
    dependency = VCSDependency(
@@ -245,7 +246,7 @@ def test_search_for_vcs_read_setup_with_extras(
 def test_search_for_vcs_read_setup_raises_error_if_no_version(
    provider: Provider, mocker: MockerFixture
-):
+) -> None:
    mocker.patch(
        "poetry.inspection.info.get_pep517_metadata",
        return_value=PackageInfo(name="demo", version=None),
@@ -258,15 +259,12 @@ def test_search_for_vcs_read_setup_raises_error_if_no_version(
 @pytest.mark.parametrize("directory", ["demo", "non-canonical-name"])
-def test_search_for_directory_setup_egg_info(provider: Provider, directory: str):
+def test_search_for_directory_setup_egg_info(
+    provider: Provider, directory: str, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / directory,
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / directory,
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -284,15 +282,12 @@ def test_search_for_directory_setup_egg_info(provider: Provider, directory: str)
    }
-def test_search_for_directory_setup_egg_info_with_extras(provider: Provider):
+def test_search_for_directory_setup_egg_info_with_extras(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / "demo",
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo",
        extras=["foo"],
    )
@@ -312,21 +307,13 @@ def test_search_for_directory_setup_egg_info_with_extras(provider: Provider):
 @pytest.mark.parametrize("directory", ["demo", "non-canonical-name"])
-def test_search_for_directory_setup_with_base(provider: Provider, directory: str):
+def test_search_for_directory_setup_with_base(
+    provider: Provider, directory: str, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / directory,
-        / "fixtures"
+        base=fixture_dir("git") / "github.com" / "demo" / directory,
-        / "git"
-        / "github.com"
-        / "demo"
-        / directory,
-        base=Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / directory,
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -342,29 +329,17 @@ def test_search_for_directory_setup_with_base(provider: Provider, directory: str
        "foo": [get_dependency("cleo")],
        "bar": [get_dependency("tomlkit")],
    }
-    assert package.root_dir == (
+    assert package.root_dir == (fixture_dir("git") / "github.com" / "demo" / directory)
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / directory
-    )
 def test_search_for_directory_setup_read_setup(
-    provider: Provider, mocker: MockerFixture
+    provider: Provider, mocker: MockerFixture, fixture_dir: FixtureDirGetter
-):
+) -> None:
    mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / "demo",
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo",
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -383,18 +358,13 @@ def test_search_for_directory_setup_read_setup(
 def test_search_for_directory_setup_read_setup_with_extras(
-    provider: Provider, mocker: MockerFixture
+    provider: Provider, mocker: MockerFixture, fixture_dir: FixtureDirGetter
-):
+) -> None:
    mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / "demo",
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo",
        extras=["foo"],
    )
@@ -413,15 +383,12 @@ def test_search_for_directory_setup_read_setup_with_extras(
    }
-def test_search_for_directory_setup_read_setup_with_no_dependencies(provider: Provider):
+def test_search_for_directory_setup_read_setup_with_no_dependencies(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("git") / "github.com" / "demo" / "no-dependencies",
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "no-dependencies",
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -432,10 +399,12 @@ def test_search_for_directory_setup_read_setup_with_no_dependencies(provider: Pr
    assert package.extras == {}
-def test_search_for_directory_poetry(provider: Provider):
+def test_search_for_directory_poetry(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "project-with-extras",
-        Path(__file__).parent.parent / "fixtures" / "project_with_extras",
+        fixture_dir("project_with_extras"),
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -460,10 +429,12 @@ def test_search_for_directory_poetry(provider: Provider):
    }
-def test_search_for_directory_poetry_with_extras(provider: Provider):
+def test_search_for_directory_poetry_with_extras(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = DirectoryDependency(
        "project-with-extras",
-        Path(__file__).parent.parent / "fixtures" / "project_with_extras",
+        fixture_dir("project_with_extras"),
        extras=["extras_a"],
    )
@@ -489,13 +460,12 @@ def test_search_for_directory_poetry_with_extras(provider: Provider):
    }
-def test_search_for_file_sdist(provider: Provider):
+def test_search_for_file_sdist(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = FileDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("distributions") / "demo-0.1.0.tar.gz",
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0.tar.gz",
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -520,13 +490,12 @@ def test_search_for_file_sdist(provider: Provider):
    }
-def test_search_for_file_sdist_with_extras(provider: Provider):
+def test_search_for_file_sdist_with_extras(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = FileDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("distributions") / "demo-0.1.0.tar.gz",
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0.tar.gz",
        extras=["foo"],
    )
@@ -552,13 +521,12 @@ def test_search_for_file_sdist_with_extras(provider: Provider):
    }
-def test_search_for_file_wheel(provider: Provider):
+def test_search_for_file_wheel(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = FileDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl",
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl",
    )
    package = provider.search_for_direct_origin_dependency(dependency)
@@ -583,13 +551,12 @@ def test_search_for_file_wheel(provider: Provider):
    }
-def test_search_for_file_wheel_with_extras(provider: Provider):
+def test_search_for_file_wheel_with_extras(
+    provider: Provider, fixture_dir: FixtureDirGetter
+) -> None:
    dependency = FileDependency(
        "demo",
-        Path(__file__).parent.parent
+        fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl",
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl",
        extras=["foo"],
    )
@@ -639,10 +606,9 @@ def test_complete_package_does_not_merge_different_source_names(
 def test_complete_package_preserves_source_type(
-    provider: Provider, root: ProjectPackage
+    provider: Provider, root: ProjectPackage, fixture_dir: FixtureDirGetter
 ) -> None:
-    fixtures = Path(__file__).parent.parent / "fixtures"
+    project_dir = fixture_dir("with_conditional_path_deps")
-    project_dir = fixtures.joinpath("with_conditional_path_deps")
    for folder in ["demo_one", "demo_two"]:
        path = (project_dir / folder).as_posix()
        root.add_dependency(Factory.create_dependency("demo", {"path": path}))
@@ -737,7 +703,7 @@ def test_complete_package_with_extras_preserves_source_name(
 @pytest.mark.parametrize("with_extra", [False, True])
 def test_complete_package_fetches_optional_vcs_dependency_only_if_requested(
    provider: Provider, repository: Repository, mocker: MockerFixture, with_extra: bool
-):
+) -> None:
    optional_vcs_dependency = Factory.create_dependency(
        "demo", {"git": "https://github.com/demo/demo.git", "optional": True}
    )

--- a/tests/puzzle/test_solver.py
+++ b/tests/puzzle/test_solver.py
@@ -2,7 +2,6 @@ from __future__ import annotations
 import re
-from pathlib import Path
 from typing import TYPE_CHECKING
 from typing import Any
@@ -43,6 +42,7 @@ if TYPE_CHECKING:
    from poetry.installation.operations.operation import Operation
    from poetry.puzzle.provider import Provider
    from poetry.puzzle.transaction import Transaction
+    from tests.types import FixtureDirGetter
 DEFAULT_SOURCE_REF = (
    VCSDependency("poetry", "git", "git@github.com:python-poetry/poetry.git").branch
@@ -115,7 +115,7 @@ def check_solver_result(
 def test_solver_install_single(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -128,7 +128,7 @@ def test_solver_install_single(
 def test_solver_remove_if_no_longer_locked(
    package: ProjectPackage, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package_a = get_package("A", "1.0")
    solver = Solver(package, pool, [package_a], [package_a], io)
@@ -139,7 +139,7 @@ def test_solver_remove_if_no_longer_locked(
 def test_remove_non_installed(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package_a = get_package("A", "1.0")
    repo.add_package(package_a)
@@ -151,7 +151,7 @@ def test_remove_non_installed(
 def test_install_non_existing_package_fail(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("B", "1"))
    package_a = get_package("A", "1.0")
@@ -163,7 +163,7 @@ def test_install_non_existing_package_fail(
 def test_install_unpublished_package_does_not_fail(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("B", "1"))
    package_a = get_package("A", "1.0")
@@ -188,7 +188,9 @@ def test_install_unpublished_package_does_not_fail(
    )
-def test_solver_with_deps(solver: Solver, repo: Repository, package: ProjectPackage):
+def test_solver_with_deps(
+    solver: Solver, repo: Repository, package: ProjectPackage
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -214,7 +216,7 @@ def test_solver_with_deps(solver: Solver, repo: Repository, package: ProjectPack
 def test_install_honours_not_equal(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -244,7 +246,7 @@ def test_install_honours_not_equal(
 def test_install_with_deps_in_order(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
    package.add_dependency(Factory.create_dependency("C", "*"))
@@ -275,7 +277,7 @@ def test_install_with_deps_in_order(
 def test_install_installed(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -291,7 +293,7 @@ def test_install_installed(
 def test_update_installed(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -309,7 +311,7 @@ def test_update_installed(
 def test_update_with_use_latest(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
@@ -337,7 +339,9 @@ def test_update_with_use_latest(
    )
-def test_solver_sets_groups(solver: Solver, repo: Repository, package: ProjectPackage):
+def test_solver_sets_groups(
+    solver: Solver, repo: Repository, package: ProjectPackage
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*", groups=["dev"]))
@@ -368,7 +372,7 @@ def test_solver_sets_groups(solver: Solver, repo: Repository, package: ProjectPa
 def test_solver_respects_root_package_python_versions(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~3.4")
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
@@ -401,7 +405,7 @@ def test_solver_respects_root_package_python_versions(
 def test_solver_fails_if_mismatch_root_python_versions(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "^3.4")
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
@@ -423,7 +427,7 @@ def test_solver_fails_if_mismatch_root_python_versions(
 def test_solver_ignores_python_restricted_if_mismatch_root_package_python_versions(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~3.8")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "1.0", "python": "<3.8"})
@@ -447,7 +451,7 @@ def test_solver_ignores_python_restricted_if_mismatch_root_package_python_versio
 def test_solver_solves_optional_and_compatible_packages(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~3.4")
    package.extras["foo"] = [get_dependency("B")]
    package.add_dependency(
@@ -482,7 +486,7 @@ def test_solver_solves_optional_and_compatible_packages(
 def test_solver_does_not_return_extras_if_not_requested(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
@@ -509,7 +513,7 @@ def test_solver_does_not_return_extras_if_not_requested(
 def test_solver_returns_extras_if_requested(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(
        Factory.create_dependency("B", {"version": "*", "extras": ["foo"]})
@@ -549,7 +553,7 @@ def test_solver_returns_extras_only_requested(
    repo: Repository,
    package: ProjectPackage,
    enabled_extra: bool | None,
-):
+) -> None:
    extras = [enabled_extra] if enabled_extra is not None else []
    package.add_dependency(Factory.create_dependency("A", "*"))
@@ -611,7 +615,7 @@ def test_solver_returns_extras_when_multiple_extras_use_same_dependency(
    repo: Repository,
    package: ProjectPackage,
    enabled_extra: bool | None,
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -660,7 +664,7 @@ def test_solver_returns_extras_only_requested_nested(
    repo: Repository,
    package: ProjectPackage,
    enabled_extra: bool | None,
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -715,7 +719,7 @@ def test_solver_returns_extras_only_requested_nested(
 def test_solver_finds_extras_next_to_non_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    # Root depends on A[foo]
    package.add_dependency(
        Factory.create_dependency("A", {"version": "*", "extras": ["foo"]})
@@ -762,7 +766,7 @@ def test_solver_finds_extras_next_to_non_extras(
 def test_solver_merge_extras_into_base_package_multiple_repos_fixes_5727(
    solver: Solver, repo: Repository, pool: RepositoryPool, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("A", {"version": "*", "source": "legacy"})
    )
@@ -794,7 +798,7 @@ def test_solver_merge_extras_into_base_package_multiple_repos_fixes_5727(
 def test_solver_returns_extras_if_excluded_by_markers_without_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("A", {"version": "*", "extras": ["foo"]})
    )
@@ -833,7 +837,7 @@ def test_solver_returns_extras_if_excluded_by_markers_without_extras(
 def test_solver_returns_prereleases_if_requested(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
    package.add_dependency(
@@ -864,7 +868,7 @@ def test_solver_returns_prereleases_if_requested(
 def test_solver_does_not_return_prereleases_if_not_requested(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
    package.add_dependency(Factory.create_dependency("C", "*"))
@@ -893,7 +897,7 @@ def test_solver_does_not_return_prereleases_if_not_requested(
 def test_solver_sub_dependencies_with_requirements(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
@@ -931,7 +935,7 @@ def test_solver_sub_dependencies_with_requirements(
 def test_solver_sub_dependencies_with_requirements_complex(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "<5.0"})
    )
@@ -990,7 +994,7 @@ def test_solver_sub_dependencies_with_requirements_complex(
 def test_solver_sub_dependencies_with_not_supported_python_version(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "^3.5")
    package.add_dependency(Factory.create_dependency("A", "*"))
@@ -1012,7 +1016,7 @@ def test_solver_sub_dependencies_with_not_supported_python_version(
 def test_solver_sub_dependencies_with_not_supported_python_version_transitive(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "^3.4")
    package.add_dependency(
@@ -1056,7 +1060,7 @@ def test_solver_sub_dependencies_with_not_supported_python_version_transitive(
 def test_solver_with_dependency_in_both_main_and_dev_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "^3.5")
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(
@@ -1109,7 +1113,7 @@ def test_solver_with_dependency_in_both_main_and_dev_dependencies(
 def test_solver_with_dependency_in_both_main_and_dev_dependencies_with_one_more_dependent(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("E", "*"))
    package.add_dependency(
@@ -1169,7 +1173,7 @@ def test_solver_with_dependency_in_both_main_and_dev_dependencies_with_one_more_
 def test_solver_with_dependency_and_prerelease_sub_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1196,7 +1200,7 @@ def test_solver_with_dependency_and_prerelease_sub_dependencies(
 def test_solver_circular_dependency(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1228,7 +1232,7 @@ def test_solver_circular_dependency(
 def test_solver_circular_dependency_chain(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1265,7 +1269,7 @@ def test_solver_circular_dependency_chain(
 def test_solver_dense_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    # The root package depends on packages A0...An-1,
    # And package Ai depends  on packages A0...Ai-1
    # This graph is a transitive tournament
@@ -1288,7 +1292,7 @@ def test_solver_dense_dependencies(
 def test_solver_duplicate_dependencies_same_constraint(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1317,7 +1321,7 @@ def test_solver_duplicate_dependencies_same_constraint(
 def test_solver_duplicate_dependencies_different_constraints(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1349,7 +1353,7 @@ def test_solver_duplicate_dependencies_different_constraints(
 def test_solver_duplicate_dependencies_different_constraints_same_requirements(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1376,7 +1380,7 @@ So, because no versions of a match !=1.0
 def test_solver_duplicate_dependencies_different_constraints_merge_by_marker(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1414,7 +1418,7 @@ def test_solver_duplicate_dependencies_different_constraints_merge_by_marker(
 @pytest.mark.parametrize("git_first", [False, True])
 def test_solver_duplicate_dependencies_different_sources_types_are_preserved(
    solver: Solver, repo: Repository, package: ProjectPackage, git_first: bool
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    repo.add_package(pendulum)
    repo.add_package(get_package("cleo", "1.0.0"))
@@ -1482,7 +1486,7 @@ def test_solver_duplicate_dependencies_different_sources_types_are_preserved(
 def test_solver_duplicate_dependencies_different_constraints_merge_no_markers(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "1.0"))
@@ -1683,7 +1687,7 @@ def test_solver_duplicate_dependencies_different_constraints_discard_no_markers3
 def test_solver_duplicate_dependencies_ignore_overrides_with_empty_marker_intersection(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    """
    Distinct requirements per marker:
    * Python 2.7: A (which requires B) and B
@@ -1754,7 +1758,7 @@ def test_solver_duplicate_dependencies_ignore_overrides_with_empty_marker_inters
 def test_solver_duplicate_dependencies_ignore_overrides_with_empty_marker_intersection2(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    """
    Empty intersection between top level dependency and transient dependency.
    """
@@ -1797,7 +1801,7 @@ def test_solver_duplicate_dependencies_ignore_overrides_with_empty_marker_inters
 def test_solver_duplicate_dependencies_sub_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package_a = get_package("A", "1.0")
@@ -1836,10 +1840,11 @@ def test_solver_duplicate_dependencies_sub_dependencies(
    )
-def test_duplicate_path_dependencies(solver: Solver, package: ProjectPackage) -> None:
+def test_duplicate_path_dependencies(
+    solver: Solver, package: ProjectPackage, fixture_dir: FixtureDirGetter
+) -> None:
    set_package_python_versions(solver.provider, "^3.7")
-    fixtures = Path(__file__).parent.parent / "fixtures"
+    project_dir = fixture_dir("with_conditional_path_deps")
-    project_dir = fixtures / "with_conditional_path_deps"
    path1 = (project_dir / "demo_one").as_posix()
    demo1 = Package("demo", "1.2.3", source_type="directory", source_url=path1)
@@ -1869,11 +1874,10 @@ def test_duplicate_path_dependencies(solver: Solver, package: ProjectPackage) ->
 def test_duplicate_path_dependencies_same_path(
-    solver: Solver, package: ProjectPackage
+    solver: Solver, package: ProjectPackage, fixture_dir: FixtureDirGetter
 ) -> None:
    set_package_python_versions(solver.provider, "^3.7")
-    fixtures = Path(__file__).parent.parent / "fixtures"
+    project_dir = fixture_dir("with_conditional_path_deps")
-    project_dir = fixtures / "with_conditional_path_deps"
    path1 = (project_dir / "demo_one").as_posix()
    demo1 = Package("demo", "1.2.3", source_type="directory", source_url=path1)
@@ -1895,7 +1899,7 @@ def test_duplicate_path_dependencies_same_path(
 def test_solver_fails_if_dependency_name_does_not_match_package(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency(
            "my-demo", {"git": "https://github.com/demo/demo.git"}
@@ -1908,7 +1912,7 @@ def test_solver_fails_if_dependency_name_does_not_match_package(
 def test_solver_does_not_get_stuck_in_recursion_on_circular_dependency(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package_a = get_package("A", "1.0")
    package_a.add_dependency(Factory.create_dependency("B", "^1.0"))
    package_b = get_package("B", "1.0")
@@ -1936,7 +1940,7 @@ def test_solver_does_not_get_stuck_in_recursion_on_circular_dependency(
 def test_solver_can_resolve_git_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -1971,7 +1975,7 @@ def test_solver_can_resolve_git_dependencies(
 def test_solver_can_resolve_git_dependencies_with_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -2011,7 +2015,7 @@ def test_solver_can_resolve_git_dependencies_with_extras(
 )
 def test_solver_can_resolve_git_dependencies_with_ref(
    solver: Solver, repo: Repository, package: ProjectPackage, ref: dict[str, str]
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -2046,7 +2050,7 @@ def test_solver_can_resolve_git_dependencies_with_ref(
 def test_solver_does_not_trigger_conflict_for_python_constraint_if_python_requirement_is_compatible(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.4")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "^3.6"})
@@ -2064,7 +2068,7 @@ def test_solver_does_not_trigger_conflict_for_python_constraint_if_python_requir
 def test_solver_does_not_trigger_conflict_for_python_constraint_if_python_requirement_is_compatible_multiple(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.4")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "^3.6"})
@@ -2096,7 +2100,7 @@ def test_solver_does_not_trigger_conflict_for_python_constraint_if_python_requir
 def test_solver_triggers_conflict_for_dependency_python_not_fully_compatible_with_package_python(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.4")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "^3.5"})
@@ -2113,7 +2117,7 @@ def test_solver_triggers_conflict_for_dependency_python_not_fully_compatible_wit
 def test_solver_finds_compatible_package_for_dependency_python_not_fully_compatible_with_package_python(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.4")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "^3.5"})
@@ -2135,7 +2139,7 @@ def test_solver_finds_compatible_package_for_dependency_python_not_fully_compati
 def test_solver_does_not_trigger_new_resolution_on_duplicate_dependencies_if_only_extras(  # noqa: E501
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    dep1 = Dependency.create_from_pep_508('B (>=1.0); extra == "foo"')
    dep1.activate()
    dep2 = Dependency.create_from_pep_508('B (>=2.0); extra == "bar"')
@@ -2173,7 +2177,7 @@ def test_solver_does_not_trigger_new_resolution_on_duplicate_dependencies_if_onl
 def test_solver_does_not_raise_conflict_for_locked_conditional_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.4")
    package.add_dependency(
        Factory.create_dependency("A", {"version": "^1.0", "python": "^3.6"})
@@ -2205,7 +2209,7 @@ def test_solver_does_not_raise_conflict_for_locked_conditional_dependencies(
 def test_solver_returns_extras_if_requested_in_dependencies_and_not_in_root_package(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "*"))
    package.add_dependency(Factory.create_dependency("B", "*"))
    package.add_dependency(Factory.create_dependency("C", "*"))
@@ -2244,7 +2248,7 @@ def test_solver_returns_extras_if_requested_in_dependencies_and_not_in_root_pack
 def test_solver_should_not_resolve_prerelease_version_if_not_requested(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("A", "~1.8.0"))
    package.add_dependency(Factory.create_dependency("B", "^0.5.0"))
@@ -2263,7 +2267,7 @@ def test_solver_should_not_resolve_prerelease_version_if_not_requested(
 def test_solver_ignores_dependencies_with_incompatible_python_full_version_marker(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "^3.6")
    package.add_dependency(Factory.create_dependency("A", "^1.0"))
    package.add_dependency(Factory.create_dependency("B", "^2.0"))
@@ -2296,7 +2300,7 @@ def test_solver_ignores_dependencies_with_incompatible_python_full_version_marke
 def test_solver_git_dependencies_update(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -2345,7 +2349,7 @@ def test_solver_git_dependencies_update(
 def test_solver_git_dependencies_update_skipped(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -2378,7 +2382,7 @@ def test_solver_git_dependencies_update_skipped(
 def test_solver_git_dependencies_short_hash_update_skipped(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
@@ -2423,19 +2427,15 @@ def test_solver_git_dependencies_short_hash_update_skipped(
 def test_solver_can_resolve_directory_dependencies(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    repo.add_package(pendulum)
-    path = (
+    path = (fixture_dir("git") / "github.com" / "demo" / "demo").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo"
-    ).as_posix()
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
@@ -2460,8 +2460,9 @@ def test_solver_can_resolve_directory_dependencies_nested_editable(
    repo: Repository,
    pool: RepositoryPool,
    io: NullIO,
-):
+    fixture_dir: FixtureDirGetter,
-    base = Path(__file__).parent.parent / "fixtures" / "project_with_nested_local"
+) -> None:
+    base = fixture_dir("project_with_nested_local")
    poetry = Factory().create_poetry(cwd=base)
    package = poetry.package
@@ -2511,21 +2512,17 @@ def test_solver_can_resolve_directory_dependencies_nested_editable(
 def test_solver_can_resolve_directory_dependencies_with_extras(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
    repo.add_package(cleo)
-    path = (
+    path = (fixture_dir("git") / "github.com" / "demo" / "demo").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo"
-    ).as_posix()
    package.add_dependency(
        Factory.create_dependency("demo", {"path": path, "extras": ["foo"]})
@@ -2553,17 +2550,15 @@ def test_solver_can_resolve_directory_dependencies_with_extras(
 def test_solver_can_resolve_sdist_dependencies(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    repo.add_package(pendulum)
-    path = (
+    path = (fixture_dir("distributions") / "demo-0.1.0.tar.gz").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0.tar.gz"
-    ).as_posix()
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
@@ -2585,19 +2580,17 @@ def test_solver_can_resolve_sdist_dependencies(
 def test_solver_can_resolve_sdist_dependencies_with_extras(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
    repo.add_package(cleo)
-    path = (
+    path = (fixture_dir("distributions") / "demo-0.1.0.tar.gz").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0.tar.gz"
-    ).as_posix()
    package.add_dependency(
        Factory.create_dependency("demo", {"path": path, "extras": ["foo"]})
@@ -2625,17 +2618,15 @@ def test_solver_can_resolve_sdist_dependencies_with_extras(
 def test_solver_can_resolve_wheel_dependencies(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    repo.add_package(pendulum)
-    path = (
+    path = (fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl"
-    ).as_posix()
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
@@ -2657,19 +2648,17 @@ def test_solver_can_resolve_wheel_dependencies(
 def test_solver_can_resolve_wheel_dependencies_with_extras(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    cleo = get_package("cleo", "1.0.0")
    repo.add_package(pendulum)
    repo.add_package(cleo)
-    path = (
+    path = (fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl"
-    ).as_posix()
    package.add_dependency(
        Factory.create_dependency("demo", {"path": path, "extras": ["foo"]})
@@ -2698,7 +2687,7 @@ def test_solver_can_resolve_wheel_dependencies_with_extras(
 def test_solver_can_solve_with_legacy_repository_using_proper_dists(
    package: ProjectPackage, io: NullIO
-):
+) -> None:
    repo = MockLegacyRepository()
    pool = RepositoryPool([repo])
@@ -2741,7 +2730,7 @@ def test_solver_can_solve_with_legacy_repository_using_proper_dists(
 def test_solver_can_solve_with_legacy_repository_using_proper_python_compatible_dists(
    package: ProjectPackage,
    io: NullIO,
-):
+) -> None:
    package.python_versions = "^3.7"
    repo = MockLegacyRepository()
@@ -2770,7 +2759,7 @@ def test_solver_can_solve_with_legacy_repository_using_proper_python_compatible_
    )
-def test_solver_skips_invalid_versions(package: ProjectPackage, io: NullIO):
+def test_solver_skips_invalid_versions(package: ProjectPackage, io: NullIO) -> None:
    package.python_versions = "^3.7"
    repo = MockPyPIRepository()
@@ -2789,7 +2778,7 @@ def test_solver_skips_invalid_versions(package: ProjectPackage, io: NullIO):
 def test_multiple_constraints_on_root(
    package: ProjectPackage, solver: Solver, repo: Repository
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("foo", {"version": "^1.0", "python": "^2.7"})
    )
@@ -2813,7 +2802,7 @@ def test_multiple_constraints_on_root(
 def test_solver_chooses_most_recent_version_amongst_repositories(
    package: ProjectPackage, io: NullIO
-):
+) -> None:
    package.python_versions = "^3.7"
    package.add_dependency(Factory.create_dependency("tomlkit", {"version": "^0.5"}))
@@ -2834,7 +2823,7 @@ def test_solver_chooses_most_recent_version_amongst_repositories(
 def test_solver_chooses_from_correct_repository_if_forced(
    package: ProjectPackage, io: NullIO
-):
+) -> None:
    package.python_versions = "^3.7"
    package.add_dependency(
        Factory.create_dependency("tomlkit", {"version": "^0.5", "source": "legacy"})
@@ -2869,7 +2858,7 @@ def test_solver_chooses_from_correct_repository_if_forced(
 def test_solver_chooses_from_correct_repository_if_forced_and_transitive_dependency(
    package: ProjectPackage,
    io: NullIO,
-):
+) -> None:
    package.python_versions = "^3.7"
    package.add_dependency(Factory.create_dependency("foo", "^1.0"))
    package.add_dependency(
@@ -2911,7 +2900,7 @@ def test_solver_chooses_from_correct_repository_if_forced_and_transitive_depende
 def test_solver_does_not_choose_from_secondary_repository_by_default(
    package: ProjectPackage, io: NullIO
-):
+) -> None:
    package.python_versions = "^3.7"
    package.add_dependency(Factory.create_dependency("clikit", {"version": "^0.2.0"}))
@@ -2959,7 +2948,7 @@ def test_solver_does_not_choose_from_secondary_repository_by_default(
 def test_solver_chooses_from_secondary_if_explicit(
    package: ProjectPackage,
    io: NullIO,
-):
+) -> None:
    package.python_versions = "^3.7"
    package.add_dependency(
        Factory.create_dependency("clikit", {"version": "^0.2.0", "source": "PyPI"})
@@ -3068,7 +3057,7 @@ def test_solver_discards_packages_with_empty_markers(
    repo: Repository,
    pool: RepositoryPool,
    io: NullIO,
-):
+) -> None:
    package.python_versions = "~2.7 || ^3.4"
    package.add_dependency(
        Factory.create_dependency(
@@ -3104,7 +3093,7 @@ def test_solver_discards_packages_with_empty_markers(
 def test_solver_does_not_raise_conflict_for_conditional_dev_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.5")
    package.add_dependency(
        Factory.create_dependency(
@@ -3136,7 +3125,7 @@ def test_solver_does_not_raise_conflict_for_conditional_dev_dependencies(
 def test_solver_does_not_loop_indefinitely_on_duplicate_constraints_with_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.5")
    package.add_dependency(
        Factory.create_dependency(
@@ -3170,7 +3159,7 @@ def test_solver_does_not_fail_with_locked_git_and_non_git_dependencies(
    repo: Repository,
    pool: RepositoryPool,
    io: NullIO,
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("demo", {"git": "https://github.com/demo/demo.git"})
    )
@@ -3205,7 +3194,7 @@ def test_solver_does_not_fail_with_locked_git_and_non_git_dependencies(
 def test_ignore_python_constraint_no_overlap_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    pytest = get_package("demo", "1.0.0")
    pytest.add_dependency(
        Factory.create_dependency(
@@ -3230,7 +3219,7 @@ def test_ignore_python_constraint_no_overlap_dependencies(
 def test_solver_should_not_go_into_an_infinite_loop_on_duplicate_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    set_package_python_versions(solver.provider, "~2.7 || ^3.5")
    package.add_dependency(Factory.create_dependency("A", "^1.0"))
@@ -3263,7 +3252,7 @@ def test_solver_should_not_go_into_an_infinite_loop_on_duplicate_dependencies(
 def test_solver_synchronize_single(
    package: ProjectPackage, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package_a = get_package("a", "1.0")
    solver = Solver(package, pool, [package_a], [], io)
@@ -3279,7 +3268,7 @@ def test_solver_with_synchronization_keeps_critical_package(
    package: ProjectPackage,
    pool: RepositoryPool,
    io: NullIO,
-):
+) -> None:
    package_pip = get_package("setuptools", "1.0")
    solver = Solver(package, pool, [package_pip], [], io)
@@ -3289,8 +3278,11 @@ def test_solver_with_synchronization_keeps_critical_package(
 def test_solver_cannot_choose_another_version_for_directory_dependencies(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    demo = get_package("demo", "0.1.0")
    foo = get_package("foo", "1.2.3")
@@ -3299,14 +3291,7 @@ def test_solver_cannot_choose_another_version_for_directory_dependencies(
    repo.add_package(demo)
    repo.add_package(pendulum)
-    path = (
+    path = (fixture_dir("git") / "github.com" / "demo" / "demo").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo"
-    ).as_posix()
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
    package.add_dependency(Factory.create_dependency("foo", "^1.2.3"))
@@ -3318,8 +3303,11 @@ def test_solver_cannot_choose_another_version_for_directory_dependencies(
 def test_solver_cannot_choose_another_version_for_file_dependencies(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    demo = get_package("demo", "0.0.8")
    foo = get_package("foo", "1.2.3")
@@ -3328,12 +3316,7 @@ def test_solver_cannot_choose_another_version_for_file_dependencies(
    repo.add_package(demo)
    repo.add_package(pendulum)
-    path = (
+    path = (fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl"
-    ).as_posix()
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
    package.add_dependency(Factory.create_dependency("foo", "^1.2.3"))
@@ -3346,7 +3329,7 @@ def test_solver_cannot_choose_another_version_for_file_dependencies(
 def test_solver_cannot_choose_another_version_for_git_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    pendulum = get_package("pendulum", "2.0.3")
    demo = get_package("demo", "0.0.8")
    foo = get_package("foo", "1.2.3")
@@ -3371,13 +3354,9 @@ def test_solver_cannot_choose_another_version_for_url_dependencies(
    repo: Repository,
    package: ProjectPackage,
    http: type[httpretty.httpretty],
-):
+    fixture_dir: FixtureDirGetter,
-    path = (
+) -> None:
-        Path(__file__).parent.parent
+    path = fixture_dir("distributions") / "demo-0.1.0-py2.py3-none-any.whl"
-        / "fixtures"
-        / "distributions"
-        / "demo-0.1.0-py2.py3-none-any.whl"
-    )
    http.register_uri(
        "GET",
@@ -3409,7 +3388,7 @@ def test_solver_cannot_choose_another_version_for_url_dependencies(
 def test_solver_should_not_update_same_version_packages_if_installed_has_no_source_type(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("foo", "1.0.0"))
    foo = Package(
@@ -3458,7 +3437,7 @@ def test_solver_should_use_the_python_constraint_from_the_environment_if_availab
 def test_solver_should_resolve_all_versions_for_multiple_duplicate_dependencies(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.python_versions = "~2.7 || ^3.5"
    package.add_dependency(
        Factory.create_dependency(
@@ -3506,7 +3485,7 @@ def test_solver_should_resolve_all_versions_for_multiple_duplicate_dependencies(
 def test_solver_should_not_raise_errors_for_irrelevant_python_constraints(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.python_versions = "^3.6"
    set_package_python_versions(solver.provider, "^3.6")
    package.add_dependency(
@@ -3524,7 +3503,7 @@ def test_solver_should_not_raise_errors_for_irrelevant_python_constraints(
 def test_solver_can_resolve_transitive_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(Factory.create_dependency("requests", "^2.24.0"))
    package.add_dependency(Factory.create_dependency("PyOTA", "^2.1.0"))
@@ -3562,7 +3541,7 @@ def test_solver_can_resolve_transitive_extras(
 def test_solver_can_resolve_for_packages_with_missing_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency(
            "django-anymail", {"version": "^6.0", "extras": ["postmark"]}
@@ -3599,7 +3578,7 @@ def test_solver_can_resolve_for_packages_with_missing_extras(
 def test_solver_can_resolve_python_restricted_package_dependencies(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("futures", {"version": "^3.3.0", "python": "~2.7"})
    )
@@ -3630,7 +3609,7 @@ def test_solver_can_resolve_python_restricted_package_dependencies(
 def test_solver_should_not_raise_errors_for_irrelevant_transitive_python_constraints(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    package.python_versions = "~2.7 || ^3.5"
    set_package_python_versions(solver.provider, "~2.7 || ^3.5")
    package.add_dependency(Factory.create_dependency("virtualenv", "^20.4.3"))
@@ -3685,7 +3664,7 @@ def test_solver_keeps_multiple_locked_dependencies_for_same_package(
    pool: RepositoryPool,
    io: NullIO,
    is_locked: bool,
-):
+) -> None:
    package.add_dependency(
        Factory.create_dependency("A", {"version": "~1.1", "python": "<3.7"})
    )
@@ -3739,7 +3718,7 @@ def test_solver_does_not_update_ref_of_locked_vcs_package(
    pool: RepositoryPool,
    io: NullIO,
    is_locked: bool,
-):
+) -> None:
    locked_ref = "123456"
    latest_ref = "9cf87a285a2d3fbb0b9fa621997b3acc3631ed24"
    demo_locked = Package(
@@ -3795,7 +3774,7 @@ def test_solver_does_not_fetch_locked_vcs_package_with_ref(
    pool: RepositoryPool,
    io: NullIO,
    mocker: MockerFixture,
-):
+) -> None:
    locked_ref = "123456"
    demo_locked = Package(
        "demo",
@@ -3824,8 +3803,11 @@ def test_solver_does_not_fetch_locked_vcs_package_with_ref(
 def test_solver_direct_origin_dependency_with_extras_requested_by_other_package(
-    solver: Solver, repo: Repository, package: ProjectPackage
+    solver: Solver,
-):
+    repo: Repository,
+    package: ProjectPackage,
+    fixture_dir: FixtureDirGetter,
+) -> None:
    """
    Another package requires the same dependency with extras that is required
    by the project as direct origin dependency without any extras.
@@ -3840,14 +3822,7 @@ def test_solver_direct_origin_dependency_with_extras_requested_by_other_package(
    repo.add_package(pendulum)
    repo.add_package(cleo)
-    path = (
+    path = (fixture_dir("git") / "github.com" / "demo" / "demo").as_posix()
-        Path(__file__).parent.parent
-        / "fixtures"
-        / "git"
-        / "github.com"
-        / "demo"
-        / "demo"
-    ).as_posix()
    # project requires path dependency of demo while demo-foo requires demo[foo]
    package.add_dependency(Factory.create_dependency("demo", {"path": path}))
@@ -3877,7 +3852,7 @@ def test_solver_direct_origin_dependency_with_extras_requested_by_other_package(
 def test_solver_incompatible_dependency_with_and_without_extras(
    solver: Solver, repo: Repository, package: ProjectPackage
-):
+) -> None:
    """
    The solver first encounters a requirement for google-auth and then later an
    incompatible requirement for google-auth[aiohttp].
@@ -3929,7 +3904,7 @@ def test_solver_incompatible_dependency_with_and_without_extras(
 def test_update_with_prerelease_and_no_solution(
    package: ProjectPackage, repo: Repository, pool: RepositoryPool, io: NullIO
-):
+) -> None:
    # Locked and installed: cleo which depends on an old version of crashtest.
    cleo = get_package("cleo", "1.0.0a5")
    crashtest = get_package("crashtest", "0.3.0")
@@ -4001,7 +3976,7 @@ def test_update_with_use_latest_vs_lock(
    pool: RepositoryPool,
    io: NullIO,
    is_locked: bool,
-):
+) -> None:
    """
    A1 depends on B2, A2 and A3 depend on B1. Same for C.
    B1 depends on A2/C2, B2 depends on A1/C1.

--- a/tests/test_factory.py
+++ b/tests/test_factory.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -26,8 +25,6 @@ if TYPE_CHECKING:
    from poetry.poetry import Poetry
    from tests.types import FixtureDirGetter
-fixtures_dir = Path(__file__).parent / "fixtures"
 class MyPlugin(Plugin):
    def activate(self, poetry: Poetry, io: IO) -> None:
@@ -35,8 +32,8 @@ class MyPlugin(Plugin):
        poetry.package.readmes = ("README.md",)
-def test_create_poetry():
+def test_create_poetry(fixture_dir: FixtureDirGetter) -> None:
-    poetry = Factory().create_poetry(fixtures_dir / "sample_project")
+    poetry = Factory().create_poetry(fixture_dir("sample_project"))
    package = poetry.package
@@ -48,7 +45,7 @@ def test_create_poetry():
    for readme in package.readmes:
        assert (
-            readme.relative_to(fixtures_dir).as_posix() == "sample_project/README.rst"
+            readme.relative_to(fixture_dir("sample_project")).as_posix() == "README.rst"
        )
    assert package.homepage == "https://python-poetry.org"
@@ -147,8 +144,10 @@ def test_create_poetry():
        ("project_with_extras",),
    ],
 )
-def test_create_pyproject_from_package(project: str):
+def test_create_pyproject_from_package(
-    poetry = Factory().create_poetry(fixtures_dir / project)
+    project: str, fixture_dir: FixtureDirGetter
+) -> None:
+    poetry = Factory().create_poetry(fixture_dir(project))
    package = poetry.package
    pyproject = Factory.create_pyproject_from_package(package)
@@ -177,8 +176,10 @@ def test_create_pyproject_from_package(project: str):
    assert not DeepDiff(expected, result)
-def test_create_poetry_with_packages_and_includes():
+def test_create_poetry_with_packages_and_includes(
-    poetry = Factory().create_poetry(fixtures_dir / "with-include")
+    fixture_dir: FixtureDirGetter,
+) -> None:
+    poetry = Factory().create_poetry(fixture_dir("with-include"))
    package = poetry.package
@@ -198,9 +199,11 @@ def test_create_poetry_with_packages_and_includes():
    ]
-def test_create_poetry_with_multi_constraints_dependency():
+def test_create_poetry_with_multi_constraints_dependency(
+    fixture_dir: FixtureDirGetter,
+) -> None:
    poetry = Factory().create_poetry(
-        fixtures_dir / "project_with_multi_constraints_dependency"
+        fixture_dir("project_with_multi_constraints_dependency")
    )
    package = poetry.package
@@ -208,30 +211,34 @@ def test_create_poetry_with_multi_constraints_dependency():
    assert len(package.requires) == 2
-def test_poetry_with_default_source_legacy(with_simple_keyring: None):
+def test_poetry_with_default_source_legacy(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    io = BufferedIO()
-    poetry = Factory().create_poetry(fixtures_dir / "with_default_source_legacy", io=io)
+    poetry = Factory().create_poetry(fixture_dir("with_default_source_legacy"), io=io)
    assert len(poetry.pool.repositories) == 1
    assert "Found deprecated key" in io.fetch_error()
-def test_poetry_with_default_source(with_simple_keyring: None):
+def test_poetry_with_default_source(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    io = BufferedIO()
-    poetry = Factory().create_poetry(fixtures_dir / "with_default_source", io=io)
+    poetry = Factory().create_poetry(fixture_dir("with_default_source"), io=io)
    assert len(poetry.pool.repositories) == 1
    assert io.fetch_error() == ""
 @pytest.mark.parametrize(
-    "fixture_filename",
+    "project",
    ("with_non_default_source_implicit", "with_non_default_source_explicit"),
 )
 def test_poetry_with_non_default_source(
-    fixture_filename: str, with_simple_keyring: None
+    project: str, fixture_dir: FixtureDirGetter, with_simple_keyring: None
-):
+) -> None:
-    poetry = Factory().create_poetry(fixtures_dir / fixture_filename)
+    poetry = Factory().create_poetry(fixture_dir(project))
    assert not poetry.pool.has_default()
    assert poetry.pool.has_repository("PyPI")
@@ -243,9 +250,11 @@ def test_poetry_with_non_default_source(
    assert {repo.name for repo in poetry.pool.repositories} == {"PyPI", "foo"}
-def test_poetry_with_non_default_secondary_source_legacy(with_simple_keyring: None):
+def test_poetry_with_non_default_secondary_source_legacy(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    poetry = Factory().create_poetry(
-        fixtures_dir / "with_non_default_secondary_source_legacy"
+        fixture_dir("with_non_default_secondary_source_legacy")
    )
    assert poetry.pool.has_repository("PyPI")
@@ -256,8 +265,10 @@ def test_poetry_with_non_default_secondary_source_legacy(with_simple_keyring: No
    assert [repo.name for repo in poetry.pool.repositories] == ["PyPI", "foo"]
-def test_poetry_with_non_default_secondary_source(with_simple_keyring: None):
+def test_poetry_with_non_default_secondary_source(
-    poetry = Factory().create_poetry(fixtures_dir / "with_non_default_secondary_source")
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
+    poetry = Factory().create_poetry(fixture_dir("with_non_default_secondary_source"))
    assert poetry.pool.has_repository("PyPI")
    assert isinstance(poetry.pool.repository("PyPI"), PyPiRepository)
@@ -268,10 +279,11 @@ def test_poetry_with_non_default_secondary_source(with_simple_keyring: None):
 def test_poetry_with_non_default_multiple_secondary_sources_legacy(
+    fixture_dir: FixtureDirGetter,
    with_simple_keyring: None,
-):
+) -> None:
    poetry = Factory().create_poetry(
-        fixtures_dir / "with_non_default_multiple_secondary_sources_legacy"
+        fixture_dir("with_non_default_multiple_secondary_sources_legacy")
    )
    assert poetry.pool.has_repository("PyPI")
@@ -284,9 +296,11 @@ def test_poetry_with_non_default_multiple_secondary_sources_legacy(
    assert {repo.name for repo in poetry.pool.repositories} == {"PyPI", "foo", "bar"}
-def test_poetry_with_non_default_multiple_secondary_sources(with_simple_keyring: None):
+def test_poetry_with_non_default_multiple_secondary_sources(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    poetry = Factory().create_poetry(
-        fixtures_dir / "with_non_default_multiple_secondary_sources"
+        fixture_dir("with_non_default_multiple_secondary_sources")
    )
    assert poetry.pool.has_repository("PyPI")
@@ -299,9 +313,11 @@ def test_poetry_with_non_default_multiple_secondary_sources(with_simple_keyring:
    assert {repo.name for repo in poetry.pool.repositories} == {"PyPI", "foo", "bar"}
-def test_poetry_with_non_default_multiple_sources_legacy(with_simple_keyring: None):
+def test_poetry_with_non_default_multiple_sources_legacy(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    poetry = Factory().create_poetry(
-        fixtures_dir / "with_non_default_multiple_sources_legacy"
+        fixture_dir("with_non_default_multiple_sources_legacy")
    )
    assert not poetry.pool.has_default()
@@ -315,8 +331,10 @@ def test_poetry_with_non_default_multiple_sources_legacy(with_simple_keyring: No
    assert {repo.name for repo in poetry.pool.repositories} == {"bar", "PyPI", "foo"}
-def test_poetry_with_non_default_multiple_sources(with_simple_keyring: None):
+def test_poetry_with_non_default_multiple_sources(
-    poetry = Factory().create_poetry(fixtures_dir / "with_non_default_multiple_sources")
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
+    poetry = Factory().create_poetry(fixture_dir("with_non_default_multiple_sources"))
    assert not poetry.pool.has_default()
    assert poetry.pool.has_repository("PyPI")
@@ -329,8 +347,8 @@ def test_poetry_with_non_default_multiple_sources(with_simple_keyring: None):
    assert {repo.name for repo in poetry.pool.repositories} == {"PyPI", "bar", "foo"}
-def test_poetry_with_no_default_source():
+def test_poetry_with_no_default_source(fixture_dir: FixtureDirGetter) -> None:
-    poetry = Factory().create_poetry(fixtures_dir / "sample_project")
+    poetry = Factory().create_poetry(fixture_dir("sample_project"))
    assert poetry.pool.has_repository("PyPI")
    assert poetry.pool.get_priority("PyPI") is Priority.DEFAULT
@@ -338,8 +356,10 @@ def test_poetry_with_no_default_source():
    assert {repo.name for repo in poetry.pool.repositories} == {"PyPI"}
-def test_poetry_with_explicit_source(with_simple_keyring: None) -> None:
+def test_poetry_with_explicit_source(
-    poetry = Factory().create_poetry(fixtures_dir / "with_explicit_source")
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
+    poetry = Factory().create_poetry(fixture_dir("with_explicit_source"))
    assert len(poetry.pool.repositories) == 1
    assert len(poetry.pool.all_repositories) == 2
@@ -351,29 +371,33 @@ def test_poetry_with_explicit_source(with_simple_keyring: None) -> None:
    assert [repo.name for repo in poetry.pool.repositories] == ["PyPI"]
-def test_poetry_with_two_default_sources_legacy(with_simple_keyring: None):
+def test_poetry_with_two_default_sources_legacy(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    with pytest.raises(ValueError) as e:
-        Factory().create_poetry(fixtures_dir / "with_two_default_sources_legacy")
+        Factory().create_poetry(fixture_dir("with_two_default_sources_legacy"))
    assert str(e.value) == "Only one repository can be the default."
-def test_poetry_with_two_default_sources(with_simple_keyring: None):
+def test_poetry_with_two_default_sources(
+    fixture_dir: FixtureDirGetter, with_simple_keyring: None
+) -> None:
    with pytest.raises(ValueError) as e:
-        Factory().create_poetry(fixtures_dir / "with_two_default_sources")
+        Factory().create_poetry(fixture_dir("with_two_default_sources"))
    assert str(e.value) == "Only one repository can be the default."
-def test_validate():
+def test_validate(fixture_dir: FixtureDirGetter) -> None:
-    complete = TOMLFile(fixtures_dir / "complete.toml")
+    complete = TOMLFile(fixture_dir("complete.toml"))
    content = complete.read()["tool"]["poetry"]
    assert Factory.validate(content) == {"errors": [], "warnings": []}
-def test_validate_fails():
+def test_validate_fails(fixture_dir: FixtureDirGetter) -> None:
-    complete = TOMLFile(fixtures_dir / "complete.toml")
+    complete = TOMLFile(fixture_dir("complete.toml"))
    content = complete.read()["tool"]["poetry"]
    content["this key is not in the schema"] = ""
@@ -385,11 +409,11 @@ def test_validate_fails():
    assert Factory.validate(content) == {"errors": [expected], "warnings": []}
-def test_create_poetry_fails_on_invalid_configuration():
+def test_create_poetry_fails_on_invalid_configuration(
+    fixture_dir: FixtureDirGetter,
+) -> None:
    with pytest.raises(RuntimeError) as e:
-        Factory().create_poetry(
+        Factory().create_poetry(fixture_dir("invalid_pyproject") / "pyproject.toml")
-            Path(__file__).parent / "fixtures" / "invalid_pyproject" / "pyproject.toml"
-        )
    expected = """\
 The Poetry configuration is invalid:
@@ -398,7 +422,7 @@ The Poetry configuration is invalid:
    assert str(e.value) == expected
-def test_create_poetry_with_local_config(fixture_dir: FixtureDirGetter):
+def test_create_poetry_with_local_config(fixture_dir: FixtureDirGetter) -> None:
    poetry = Factory().create_poetry(fixture_dir("with_local_config"))
    assert not poetry.config.get("virtualenvs.in-project")
@@ -409,9 +433,11 @@ def test_create_poetry_with_local_config(fixture_dir: FixtureDirGetter):
    assert not poetry.config.get("virtualenvs.options.system-site-packages")
-def test_create_poetry_with_plugins(mocker: MockerFixture):
+def test_create_poetry_with_plugins(
+    mocker: MockerFixture, fixture_dir: FixtureDirGetter
+) -> None:
    mock_metadata_entry_points(mocker, MyPlugin)
-    poetry = Factory().create_poetry(fixtures_dir / "sample_project")
+    poetry = Factory().create_poetry(fixture_dir("sample_project"))
    assert poetry.package.readmes == ("README.md",)
--- a/tests/utils/test_env.py
+++ b/tests/utils/test_env.py
@@ -42,6 +42,7 @@ if TYPE_CHECKING:
    from poetry.poetry import Poetry
    from tests.conftest import Config
+    from tests.types import FixtureDirGetter
    from tests.types import ProjectFactory
 MINIMAL_SCRIPT = """\
@@ -77,9 +78,8 @@ class MockVirtualEnv(VirtualEnv):
 @pytest.fixture()
-def poetry(project_factory: ProjectFactory) -> Poetry:
+def poetry(project_factory: ProjectFactory, fixture_dir: FixtureDirGetter) -> Poetry:
-    fixture = Path(__file__).parent.parent / "fixtures" / "simple_project"
+    return project_factory("simple", source=fixture_dir("simple_project"))
-    return project_factory("simple", source=fixture)
 @pytest.fixture()
@@ -100,7 +100,7 @@ def test_virtualenvs_with_spaces_in_their_path_work_as_expected(
 @pytest.mark.skipif(sys.platform != "darwin", reason="requires darwin")
-def test_venv_backup_exclusion(tmp_path: Path, manager: EnvManager):
+def test_venv_backup_exclusion(tmp_path: Path, manager: EnvManager) -> None:
    import xattr
    venv_path = tmp_path / "Virtual Env"
@@ -1042,7 +1042,7 @@ def test_check_output_with_called_process_error(
 @pytest.mark.parametrize("out", ["sys.stdout", "sys.stderr"])
 def test_call_does_not_block_on_full_pipe(
    tmp_path: Path, tmp_venv: VirtualEnv, out: str
-):
+) -> None:
    """see https://github.com/python-poetry/poetry/issues/7698"""
    script = tmp_path / "script.py"
    script.write_text(
@@ -1664,10 +1664,8 @@ def test_generate_env_name_uses_real_path(
 @pytest.fixture()
-def extended_without_setup_poetry() -> Poetry:
+def extended_without_setup_poetry(fixture_dir: FixtureDirGetter) -> Poetry:
-    poetry = Factory().create_poetry(
+    poetry = Factory().create_poetry(fixture_dir("extended_project_without_setup"))
-        Path(__file__).parent.parent / "fixtures" / "extended_project_without_setup"
-    )
    return poetry
@@ -1713,6 +1711,7 @@ def test_build_environment_not_called_without_build_script_specified(
 def test_create_venv_project_name_empty_sets_correct_prompt(
+    fixture_dir: FixtureDirGetter,
    project_factory: ProjectFactory,
    config: Config,
    mocker: MockerFixture,
@@ -1721,8 +1720,7 @@ def test_create_venv_project_name_empty_sets_correct_prompt(
    if "VIRTUAL_ENV" in os.environ:
        del os.environ["VIRTUAL_ENV"]
-    fixture = Path(__file__).parent.parent / "fixtures" / "no_name_project"
+    poetry = project_factory("no", source=fixture_dir("no_name_project"))
-    poetry = project_factory("no", source=fixture)
    manager = EnvManager(poetry)
    poetry.package.python_versions = "^3.7"

--- a/tests/utils/test_helpers.py
+++ b/tests/utils/test_helpers.py
 from __future__ import annotations
-from pathlib import Path
 from typing import TYPE_CHECKING
 import pytest
@@ -14,7 +13,7 @@ if TYPE_CHECKING:
    from tests.types import FixtureDirGetter
-def test_parse_requires():
+def test_parse_requires() -> None:
    requires = """\
 jsonschema>=2.6.0.0,<3.0.0.0
 lockfile>=0.12.0.0,<0.13.0.0
@@ -71,10 +70,8 @@ isort@ git+git://github.com/timothycrosley/isort.git@e63ae06ec7d70b06df9e5283576
 def test_default_hash(fixture_dir: FixtureDirGetter) -> None:
-    root_dir = Path(__file__).parent.parent.parent
-    file_path = root_dir / fixture_dir("distributions/demo-0.1.0.tar.gz")
    sha_256 = "9fa123ad707a5c6c944743bf3e11a0e80d86cb518d3cf25320866ca3ef43e2ad"
-    assert get_file_hash(file_path) == sha_256
+    assert get_file_hash(fixture_dir("distributions") / "demo-0.1.0.tar.gz") == sha_256
 try:
@@ -130,6 +127,5 @@ except ImportError:
 def test_guaranteed_hash(
    hash_name: str, expected: str, fixture_dir: FixtureDirGetter
 ) -> None:
-    root_dir = Path(__file__).parent.parent.parent
+    file_path = fixture_dir("distributions") / "demo-0.1.0.tar.gz"
-    file_path = root_dir / fixture_dir("distributions/demo-0.1.0.tar.gz")
    assert get_file_hash(file_path, hash_name) == expected