from poetry.packages import dependency_from_pep_508


def test_dependency_from_pep_508():
    name = "requests"
    dep = dependency_from_pep_508(name)

    assert dep.name == name
    assert str(dep.constraint) == "*"


def test_dependency_from_pep_508_with_version():
    name = "requests==2.18.0"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"


def test_dependency_from_pep_508_with_parens():
    name = "requests (==2.18.0)"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"


def test_dependency_from_pep_508_with_constraint():
    name = "requests>=2.12.0,!=2.17.*,<3.0"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == ">=2.12.0,<2.17.0 || >=2.18.0,<3.0"


def test_dependency_from_pep_508_with_extras():
    name = 'requests==2.18.0; extra == "foo" or extra == "bar"'
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.extras == ["foo", "bar"]


def test_dependency_from_pep_508_with_python_version():
    name = "requests (==2.18.0); " 'python_version == "2.7" or python_version == "2.6"'
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.extras == []
    assert dep.python_versions == "~2.7 || ~2.6"


def test_dependency_from_pep_508_with_single_python_version():
    name = "requests (==2.18.0); " 'python_version == "2.7"'
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.extras == []
    assert dep.python_versions == "~2.7"


def test_dependency_from_pep_508_with_platform():
    name = "requests (==2.18.0); " 'sys_platform == "win32" or sys_platform == "darwin"'
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.extras == []
    assert dep.python_versions == "*"
    assert dep.platform == "win32 || darwin"


def test_dependency_from_pep_508_complex():
    name = (
        "requests (==2.18.0); "
        'python_version >= "2.7" and python_version != "3.2" '
        'and (sys_platform == "win32" or sys_platform == "darwin") '
        'and extra == "foo"'
    )
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.extras == ["foo"]
    assert dep.python_versions == ">=2.7 !=3.2.*"
    assert dep.platform == "win32 || darwin"


def test_dependency_python_version_in():
    name = "requests (==2.18.0); " "python_version in '3.3 3.4 3.5'"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.python_versions == "3.3.* || 3.4.* || 3.5.*"


def test_dependency_python_version_in_comma():
    name = "requests (==2.18.0); " "python_version in '3.3, 3.4, 3.5'"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.python_versions == "3.3.* || 3.4.* || 3.5.*"


def test_dependency_platform_in():
    name = "requests (==2.18.0); " "sys_platform in 'win32 darwin'"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"
    assert dep.platform == "win32 || darwin"


def test_dependency_with_extra():
    name = "requests[security] (==2.18.0)"
    dep = dependency_from_pep_508(name)

    assert dep.name == "requests"
    assert str(dep.constraint) == "2.18.0"

    assert len(dep.extras) == 1
    assert dep.extras[0] == "security"
