Fixed an issue where a lazy value would not be resolved. This happens when the "auto-simplify fixture" happens in @parametrize. Fixes #225

Author: Sylvain MARIE

pytest_cases/fixture_core2.py

@@ -106,9 +106,10 @@ def _create_param_fixture(fixtures_dest,
             raise ValueError("When auto_simplify=True the argvalue can not be a pytest.param")
 
         # create the fixture - set its name so that the optional hook can read it easily
-        @with_signature("%s()" % argname)
-        def __param_fixture():
-            return argvalue_to_return
+        @with_signature("%s(request)" % argname)
+        def __param_fixture(request):
+            # do not forget to resolve the lazy values !
+            return get_lazy_args(argvalue_to_return, request)
 
         if debug:
             print("Creating unparametrized fixture %r returning %r" % (argname, argvalue_to_return))

pytest_cases/fixture_parametrize_plus.py

@@ -1054,7 +1054,7 @@ def replace_paramfixture_with_values(kwargs):  # noqa
                 return kwargs
 
             if not isgeneratorfunction(test_func):
-                # normal test function with return statement
+                # normal test or fixture function with return statement
                 @wraps(test_func, new_sig=new_sig)
                 def wrapped_test_func(*args, **kwargs):  # noqa
                     if kwargs.get(fixture_union_name, None) is NOT_USED:
@@ -1066,7 +1066,7 @@ def wrapped_test_func(*args, **kwargs):  # noqa
                         return test_func(*args, **kwargs)
 
             else:
-                # generator test function (with one or several yield statements)
+                # generator test or fixture function (with one or several yield statements)
                 @wraps(test_func, new_sig=new_sig)
                 def wrapped_test_func(*args, **kwargs):  # noqa
                     if kwargs.get(fixture_union_name, None) is NOT_USED:

pytest_cases/tests/cases/issues/issue_225/cases.py

@@ -0,0 +1,14 @@
+import pytest_cases
+
+
+class MyCases:
+    def case_x0(self, my_fixture):
+        return 1
+
+    def case_x1(self):
+        return 1
+
+
+@pytest_cases.parametrize_with_cases("c", cases=MyCases, debug=True)
+def case_y(c):
+    return c * 2

pytest_cases/tests/cases/issues/issue_225/conftest.py

@@ -0,0 +1,6 @@
+import pytest_cases
+
+
+@pytest_cases.fixture()
+def my_fixture():
+    pass

pytest_cases/tests/cases/issues/issue_225/test_sth.py

@@ -0,0 +1,7 @@
+import pytest_cases
+from pytest_cases.tests.cases.issues.issue_225.cases import *
+
+
+@pytest_cases.parametrize_with_cases("case_y", cases=case_y)
+def test_xy(case_y):
+    assert case_y == 2