Add tests/test_utils_metaclasses.py

tests/test_utils_metaclasses.py

@@ -0,0 +1,32 @@
+import pytest
+import sys
+import os
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+from slic.utils.metaclasses import *
+
+# Base classes
+class A:
+    def method_a(self):
+        return "A"
+
+class B:
+    def method_b(self):
+        return "B"
+
+# Combine A and B into a single metaclass
+CombinedMeta = combine_classes(A, B)
+
+# Use it as metaclass for a new class
+class MyCombinedClass(metaclass=CombinedMeta):
+    pass
+
+def test_combine_classes_as_metaclass():
+
+    obj = MyCombinedClass()
+
+    # Verify that methods from both base classes are available
+    assert isinstance(obj, MyCombinedClass)
+    assert isinstance(obj, A)  # via metaclass
+    assert isinstance(obj, B)  # via metaclass
+    assert obj.method_a() == "A"
+    assert obj.method_b() == "B"