Error when invalid groups are referenced (#7529)

docs/managing-dependencies.md

@@ -163,7 +163,7 @@ poetry install --only docs
 ```
 
 {{% note %}}
-If you only want to install the project's runtime dependencies, you can do so  with the
+If you only want to install the project's runtime dependencies, you can do so with the
 `--only main` notation:
 
 ```bash

src/poetry/console/commands/group_command.py

 from __future__ import annotations
 
+from collections import defaultdict
 from typing import TYPE_CHECKING
 
 from cleo.helpers import option
 from poetry.core.packages.dependency_group import MAIN_GROUP
 
 from poetry.console.commands.command import Command
+from poetry.console.exceptions import GroupNotFound
 
 
 if TYPE_CHECKING:
@@ -78,6 +80,7 @@ class GroupCommand(Command):
                 for groups in self.option(key, "")
                 for group in groups.split(",")
             }
+        self._validate_group_options(groups)
 
         for opt, new, group in [
             ("no-dev", "only", MAIN_GROUP),
@@ -107,3 +110,22 @@ class GroupCommand(Command):
         return self.poetry.package.with_dependency_groups(
             list(self.activated_groups), only=True
         )
+
+    def _validate_group_options(self, group_options: dict[str, set[str]]) -> None:
+        """
+        Raises en error if it detects that a group is not part of pyproject.toml
+        """
+        invalid_options = defaultdict(set)
+        for opt, groups in group_options.items():
+            for group in groups:
+                if not self.poetry.package.has_dependency_group(group):
+                    invalid_options[group].add(opt)
+        if invalid_options:
+            message_parts = []
+            for group in sorted(invalid_options):
+                opts = ", ".join(
+                    f"<fg=yellow;options=bold>--{opt}</>"
+                    for opt in sorted(invalid_options[group])
+                )
+                message_parts.append(f"{group} (via {opts})")
+            raise GroupNotFound(f"Group(s) not found: {', '.join(message_parts)}")

src/poetry/console/exceptions.py

@@ -5,3 +5,7 @@ from cleo.exceptions import CleoError
 
 class PoetryConsoleError(CleoError):
     pass
+
+
+class GroupNotFound(PoetryConsoleError):
+    pass

tests/console/commands/test_install.py

 from __future__ import annotations
 
+import re
+
 from typing import TYPE_CHECKING
 
 import pytest
@@ -7,6 +9,8 @@ import pytest
 from poetry.core.masonry.utils.module import ModuleOrPackageNotFound
 from poetry.core.packages.dependency_group import MAIN_GROUP
 
+from poetry.console.exceptions import GroupNotFound
+
 
 if TYPE_CHECKING:
     from cleo.testers.command_tester import CommandTester
@@ -257,6 +261,48 @@ def test_only_root_conflicts_with_without_only(
     )
 
 
+@pytest.mark.parametrize(
+    ("options", "valid_groups", "should_raise"),
+    [
+        ({"--with": MAIN_GROUP}, {MAIN_GROUP}, False),
+        ({"--with": "spam"}, set(), True),
+        ({"--with": "spam,foo"}, {"foo"}, True),
+        ({"--without": "spam"}, set(), True),
+        ({"--without": "spam,bar"}, {"bar"}, True),
+        ({"--with": "eggs,ham", "--without": "spam"}, set(), True),
+        ({"--with": "eggs,ham", "--without": "spam,baz"}, {"baz"}, True),
+        ({"--only": "spam"}, set(), True),
+        ({"--only": "bim"}, {"bim"}, False),
+        ({"--only": MAIN_GROUP}, {MAIN_GROUP}, False),
+    ],
+)
+def test_invalid_groups_with_without_only(
+    tester: CommandTester,
+    mocker: MockerFixture,
+    options: dict[str, str],
+    valid_groups: set[str],
+    should_raise: bool,
+):
+    mocker.patch.object(tester.command.installer, "run", return_value=0)
+
+    cmd_args = " ".join(f"{flag} {groups}" for (flag, groups) in options.items())
+
+    if not should_raise:
+        tester.execute(cmd_args)
+        assert tester.status_code == 0
+    else:
+        with pytest.raises(GroupNotFound, match=r"^Group\(s\) not found:") as e:
+            tester.execute(cmd_args)
+        assert tester.status_code is None
+        for opt, groups in options.items():
+            group_list = groups.split(",")
+            invalid_groups = sorted(set(group_list) - valid_groups)
+            for group in invalid_groups:
+                assert (
+                    re.search(rf"{group} \(via .*{opt}.*\)", str(e.value)) is not None
+                )
+
+
 def test_remove_untracked_outputs_deprecation_warning(
     tester: CommandTester,
     mocker: MockerFixture,