Add tests to find pytest fixtures from external plugins

test/completion/pytest.py

@@ -183,3 +183,28 @@ def with_annot() -> Generator[float, None, None]:
 def test_with_annot(inheritance_fixture, with_annot):
     #? float()
     with_annot
+
+# -----------------
+# pytest external plugins
+# -----------------
+
+#? ['admin_user', 'admin_client']
+def test_z(admin
+
+#! 15 ['def admin_client']
+def test_p(admin_client):
+    #? ['login', 'logout']
+    admin_client.log
+
+@pytest.fixture
+@some_decorator
+#? ['admin_user']
+def bla(admin_u
+    return
+
+@pytest.fixture
+@some_decorator
+#! 12 ['def admin_user']
+def bla(admin_user):
+    pass
+

test/examples/pytest_plugin_package/pytest_plugin/fixtures.py

@@ -0,0 +1,6 @@
+from pytest import fixture
+
+
+@fixture()
+def admin_user():
+    pass

test/examples/pytest_plugin_package/pytest_plugin/plugin.py

@@ -0,0 +1,18 @@
+import pytest
+from pytest import fixture
+
+
+from pytest_plugin.fixtures import admin_user  # noqa
+
+
+class Client:
+    def login(self, **credentials):
+        ...
+
+    def logout(self):
+        ...
+
+
+@pytest.fixture()
+def admin_client():
+    return Client()

test/test_integration.py

@@ -1,4 +1,5 @@
 import os
+from collections import namedtuple
 
 import pytest
 
@@ -42,6 +43,22 @@ def test_completion(case, monkeypatch, environment, has_django):
 
     if (not has_django) and case.path.endswith('django.py'):
         pytest.skip('Needs django to be installed to run this test.')
+
+    if case.path.endswith("pytest.py"):
+        # to test finding pytest fixtures from external plugins
+        # add a stub pytest plugin to the project sys_path...
+        pytest_plugin_dir = str(helpers.get_example_dir("pytest_plugin_package"))
+        case._project.added_sys_path = [pytest_plugin_dir]
+
+        # ... and mock setuptools entry points to include it
+        # see https://docs.pytest.org/en/stable/how-to/writing_plugins.html#setuptools-entry-points
+        def mock_entry_points(group):
+            assert group == "pytest11"
+            EntryPoint = namedtuple("EntryPoint", ["value"])
+            return [EntryPoint(value="pytest_plugin.plugin")]
+
+        monkeypatch.setattr("jedi.plugins.pytest.entry_points", mock_entry_points)
+
     repo_root = helpers.root_dir
     monkeypatch.chdir(os.path.join(repo_root, 'jedi'))
     case.run(assert_case_equal, environment)