fix #3498 - correctly consider marks on unittest classes

_pytest/fixtures.py

@@ -984,7 +984,7 @@ def __init__(self, session):
         session.config.pluginmanager.register(self, "funcmanage")
 
     def getfixtureinfo(self, node, func, cls, funcargs=True):
-        if funcargs and not hasattr(node, "nofuncargs"):
+        if funcargs and not getattr(node, "nofuncargs", False):
             argnames = getfuncargnames(func, cls=cls)
         else:
             argnames = ()

_pytest/python.py

@@ -1155,7 +1155,7 @@ def __init__(self, name, parent, args=None, config=None,
 
         if fixtureinfo is None:
             fixtureinfo = self.session._fixturemanager.getfixtureinfo(
-                self.parent, self.obj, self.cls,
+                self, self.obj, self.cls,
                 funcargs=not self._isyieldedfunction())
         self._fixtureinfo = fixtureinfo
         self.fixturenames = fixtureinfo.names_closure

_pytest/unittest.py

@@ -54,7 +54,7 @@ def collect(self):
                 continue
             funcobj = getattr(x, 'im_func', x)
             transfer_markers(funcobj, cls, module)
-            yield TestCaseFunction(name, parent=self)
+            yield TestCaseFunction(name, parent=self, callobj=funcobj)
             foundsomething = True
 
         if not foundsomething:
@@ -66,6 +66,7 @@ def collect(self):
 
 
 class TestCaseFunction(Function):
+    nofuncargs = True
     _excinfo = None
 
     def setup(self):

changelog/3498.bugfix

@@ -0,0 +1 @@
+Fix ``usefixtures`` mark applyed to unittest tests by correctly instantiating ``FixtureInfo``.

testing/test_unittest.py

@@ -828,3 +828,64 @@ def test_should_not_run(self):
     """)
     reprec = testdir.inline_run()
     reprec.assertoutcome(passed=1)
+
+
+@pytest.mark.issue(3498)
+@pytest.mark.parametrize("base", [
+    'six.moves.builtins.object',
+    'unittest.TestCase',
+    'unittest2.TestCase',
+])
+def test_usefixtures_marker_on_unittest(base, testdir):
+    module = base.rsplit('.', 1)[0]
+    pytest.importorskip(module)
+    testdir.makepyfile(conftest="""
+        import pytest
+
+        @pytest.fixture(scope='function')
+        def fixture1(request, monkeypatch):
+            monkeypatch.setattr(request.instance, 'fixture1', True )
+
+
+        @pytest.fixture(scope='function')
+        def fixture2(request, monkeypatch):
+            monkeypatch.setattr(request.instance, 'fixture2', True )
+
+        def node_and_marks(item):
+            print(item.nodeid)
+            for mark in item.iter_markers():
+                print("  ", mark)
+
+        @pytest.fixture(autouse=True)
+        def my_marks(request):
+            node_and_marks(request.node)
+
+        def pytest_collection_modifyitems(items):
+            for item in items:
+               node_and_marks(item)
+
+        """)
+
+    testdir.makepyfile("""
+        import pytest
+        import {module}
+
+        class Tests({base}):
+            fixture1 = False
+            fixture2 = False
+
+            @pytest.mark.usefixtures("fixture1")
+            def test_one(self):
+                assert self.fixture1
+                assert not self.fixture2
+
+            @pytest.mark.usefixtures("fixture1", "fixture2")
+            def test_two(self):
+                assert self.fixture1
+                assert self.fixture2
+
+
+    """.format(module=module, base=base))
+
+    result = testdir.runpytest('-s')
+    result.assert_outcomes(passed=2)