Simplify unit tests

unittests/resources/checks_unlisted/fixtures_complex.py

@@ -102,3 +102,17 @@ def validate_fixture_resolution(self):
                 ParamFixture.num_variants
             )
         ])
+
+
+@rfm.simple_test
+class TestC(rfm.RunOnlyRegressionTest):
+    valid_systems = ['*']
+    valid_prog_environs = ['*']
+    executable = 'echo'
+    f0 = fixture(SimpleFixture, scope='environment', variables={'data': 10})
+    f1 = fixture(SimpleFixture, scope='environment', variables={'data': 20})
+
+    @sanity_function
+    def validate_vars(self):
+        return sn.all([sn.assert_eq(self.f0.data, 10),
+                       sn.assert_eq(self.f1.data, 20)])

unittests/test_cli.py

@@ -1228,18 +1228,6 @@ def test_fixture_resolution(run_reframe, run_action):
     assert returncode == 0
 
 
-def test_fixture_resolution_same_class(run_reframe, run_action):
-    returncode, stdout, stderr = run_reframe(
-        system='sys1',
-        environs=[],
-        checkpath=[
-            'unittests/resources/checks_unlisted/fixtures_same_class.py'
-        ],
-        action=run_action
-    )
-    assert returncode == 0
-
-
 def test_dynamic_tests(run_reframe, run_action):
     returncode, stdout, _ = run_reframe(
         system='sys0',