Add initial unit tests for FunctionsView class

python/tests/unit/skill_definition/test_functions_view.py

@@ -0,0 +1,146 @@
+import pytest
+from semantic_kernel.kernel_exception import KernelException
+from semantic_kernel.skill_definition.function_view import FunctionView
+from semantic_kernel.skill_definition.functions_view import FunctionsView, FunctionView
+
+
+def test_add_semantic_function():
+    view = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Semantic function",
+        parameters=[],
+        is_semantic=True,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(view)
+    semantic_functions = functions_view._semantic_functions.get("skill1")
+    assert len(semantic_functions) == 1
+    assert semantic_functions[0] == view
+
+
+def test_add_native_function():
+    view = FunctionView(
+        name="function2",
+        skill_name="skill2",
+        description="Native function",
+        parameters=[],
+        is_semantic=False,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(view)
+    native_functions = functions_view._native_functions.get("skill2")
+    assert len(native_functions) == 1
+    assert native_functions[0] == view
+
+
+def test_add_multiple_functions():
+    semantic_function = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Semantic function",
+        parameters=[],
+        is_semantic=True,
+        is_asynchronous=True
+    )
+    native_function = FunctionView(
+        name="function2",
+        skill_name="skill2",
+        description="Native function",
+        parameters=[],
+        is_semantic=False,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(semantic_function)
+    functions_view.add_function(native_function)
+    semantic_functions = functions_view._semantic_functions.get("skill1")
+    native_functions = functions_view._native_functions.get("skill2")
+    assert len(semantic_functions) == 1
+    assert semantic_functions[0] == semantic_function
+    assert len(native_functions) == 1
+    assert native_functions[0] == native_function
+
+
+def test_is_semantic():
+    semantic_function = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Semantic function",
+        parameters=[],
+        is_semantic=True,
+        is_asynchronous=True
+    )
+    native_function = FunctionView(
+        name="function2",
+        skill_name="skill2",
+        description="Native function",
+        parameters=[],
+        is_semantic=False,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(semantic_function)
+    functions_view.add_function(native_function)
+    assert functions_view.is_semantic("skill1", "function1") == True
+    assert functions_view.is_semantic("skill2", "function2") == False
+    assert functions_view.is_semantic("skill1", "unregistered_function") == False
+
+
+def test_is_native():
+    semantic_function = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Semantic function",
+        parameters=[],
+        is_semantic=True,
+        is_asynchronous=True
+    )
+    native_function = FunctionView(
+        name="function2",
+        skill_name="skill2",
+        description="Native function",
+        parameters=[],
+        is_semantic=False,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(semantic_function)
+    functions_view.add_function(native_function)
+    assert functions_view.is_native("skill1", "function1") == False
+    assert functions_view.is_native("skill2", "function2") == True
+    assert functions_view.is_native("skill2", "unregistered_function") == False
+
+
+def test_ambiguous_implementation():
+    semantic_function = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Semantic function",
+        parameters=[],
+        is_semantic=True,
+        is_asynchronous=True
+    )
+    native_function = FunctionView(
+        name="function1",
+        skill_name="skill1",
+        description="Native function",
+        parameters=[],
+        is_semantic=False,
+        is_asynchronous=True
+    )
+    functions_view = FunctionsView()
+    functions_view.add_function(semantic_function)
+    functions_view.add_function(native_function)
+
+    with pytest.raises(KernelException) as exc_info:
+        functions_view.is_semantic("skill1", "function1")
+
+    assert exc_info.value.error_code == KernelException.ErrorCodes.AmbiguousImplementation
+
+    with pytest.raises(KernelException) as exc_info:
+        functions_view.is_native("skill1", "function1")
+
+    assert exc_info.value.error_code == KernelException.ErrorCodes.AmbiguousImplementation