Add Detach and Duplicate Prefab basic workflow auto test (#4506)

- Add a new automated test PrefabBasicWorkflow_CreateReparentAndDetachPrefab for verifying prefab detachment basic workflow.
- Add a new automated test PrefabBasicWorkflow_CreateAndDuplicatePrefab for verifying prefab detachment basic workflow.
- Fix a bug related to sets of entity ids in Reparent helper function .

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_CreateAndDeletePrefab.py

@@ -16,16 +16,15 @@ def PrefabBasicWorkflow_CreateAndDeletePrefab():
 
     prefab_test_utils.open_base_tests_level()
 
-    # Creates a new Entity at the root level
-    # Asserts if creation didn't succeed
+    # Creates a new entity at the root level
     car_entity = EditorEntity.create_editor_entity()
     car_prefab_entities = [car_entity]
 
-    # Asserts if prefab creation doesn't succeeds 
+    # Creates a prefab from the new entity
     _, car = Prefab.create_prefab(
         car_prefab_entities, CAR_PREFAB_FILE_NAME)
 
-    # Asserts if prefab deletion fails
+    # Deletes the prefab instance
     Prefab.remove_prefabs([car])
 
 if __name__ == "__main__":

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_CreateAndDuplicatePrefab.py

@@ -0,0 +1,32 @@
+"""
+Copyright (c) Contributors to the Open 3D Engine Project.
+For complete copyright and license terms please see the LICENSE at the root of this distribution.
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
+"""
+
+def PrefabBasicWorkflow_CreateAndDuplicatePrefab():
+
+    CAR_PREFAB_FILE_NAME = 'car_prefab'
+
+    from editor_python_test_tools.editor_entity_utils import EditorEntity
+    from editor_python_test_tools.prefab_utils import Prefab
+
+    import PrefabTestUtils as prefab_test_utils
+
+    prefab_test_utils.open_base_tests_level()
+
+    # Creates a new entity at the root level
+    car_entity = EditorEntity.create_editor_entity()
+    car_prefab_entities = [car_entity]
+
+    # Creates a prefab from the new entity
+    _, car = Prefab.create_prefab(
+        car_prefab_entities, CAR_PREFAB_FILE_NAME)
+
+    # Duplicates the prefab instance
+    Prefab.duplicate_prefabs([car])
+
+if __name__ == "__main__":
+    from editor_python_test_tools.utils import Report
+    Report.start_test(PrefabBasicWorkflow_CreateAndDuplicatePrefab)

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_CreateAndReparentPrefab.py

@@ -22,24 +22,23 @@ def PrefabBasicWorkflow_CreateAndReparentPrefab():
 
         prefab_test_utils.open_base_tests_level()
 
-        # Creates a new Entity at the root level
-        # Asserts if creation didn't succeed
+        # Creates a new car entity at the root level
         car_entity = EditorEntity.create_editor_entity()
         car_prefab_entities = [car_entity]
 
-        # Checks for prefab creation passed or not 
+        # Creates a prefab from the car entity
         _, car = Prefab.create_prefab(
             car_prefab_entities, CAR_PREFAB_FILE_NAME)
 
-        # Creates another new Entity at the root level
+        # Creates another new wheel entity at the root level
         wheel_entity = EditorEntity.create_editor_entity()
         wheel_prefab_entities = [wheel_entity]
 
-        # Checks for wheel prefab creation passed or not 
+        # Creates another prefab from the wheel entity
         _, wheel = Prefab.create_prefab(
             wheel_prefab_entities, WHEEL_PREFAB_FILE_NAME)
 
-        # Checks for prefab reparenting passed or not 
+        # Reparents the wheel prefab instance to the container entity of the car prefab instance
         await wheel.ui_reparent_prefab_instance(car.container_entity.id)
 
     run_test()

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_CreatePrefab.py

@@ -17,12 +17,11 @@ def PrefabBasicWorkflow_CreatePrefab():
 
     prefab_test_utils.open_base_tests_level()
 
-    # Creates a new Entity at the root level
-    # Asserts if creation didn't succeed
+    # Creates a new entity at the root level
     car_entity = EditorEntity.create_editor_entity()
     car_prefab_entities = [car_entity]
 
-    # Checks for prefab creation passed or not
+    # Creates a prefab from the new entity
     Prefab.create_prefab(car_prefab_entities, CAR_PREFAB_FILE_NAME)
 
 if __name__ == "__main__":

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_CreateReparentAndDetachPrefab.py

@@ -0,0 +1,51 @@
+"""
+Copyright (c) Contributors to the Open 3D Engine Project.
+For complete copyright and license terms please see the LICENSE at the root of this distribution.
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
+"""
+
+def PrefabBasicWorkflow_CreateReparentAndDetachPrefab():
+
+    CAR_PREFAB_FILE_NAME = 'car_prefab'
+    WHEEL_PREFAB_FILE_NAME = 'wheel_prefab'
+
+    import editor_python_test_tools.pyside_utils as pyside_utils
+
+    @pyside_utils.wrap_async
+    async def run_test():
+
+        from editor_python_test_tools.editor_entity_utils import EditorEntity
+        from editor_python_test_tools.prefab_utils import Prefab
+
+        import PrefabTestUtils as prefab_test_utils
+
+        prefab_test_utils.open_base_tests_level()
+
+        # Creates a new car entity at the root level
+        car_entity = EditorEntity.create_editor_entity()
+        car_prefab_entities = [car_entity]
+
+        # Creates a prefab from the car entity
+        _, car = Prefab.create_prefab(
+            car_prefab_entities, CAR_PREFAB_FILE_NAME)
+
+        # Creates another new wheel entity at the root level
+        wheel_entity = EditorEntity.create_editor_entity()
+        wheel_prefab_entities = [wheel_entity]
+
+        # Creates another prefab from the wheel entity
+        _, wheel = Prefab.create_prefab(
+            wheel_prefab_entities, WHEEL_PREFAB_FILE_NAME)
+
+        # Reparents the wheel prefab instance to the container entity of the car prefab instance
+        await wheel.ui_reparent_prefab_instance(car.container_entity.id)
+
+        # Detaches the wheel prefab instance
+        Prefab.detach_prefab(wheel)
+
+    run_test()
+
+if __name__ == "__main__":
+    from editor_python_test_tools.utils import Report
+    Report.start_test(PrefabBasicWorkflow_CreateReparentAndDetachPrefab)

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_InstantiatePrefab.py

@@ -19,9 +19,8 @@ def PrefabBasicWorkflow_InstantiatePrefab():
 
     prefab_test_utils.open_base_tests_level()
 
-    # Checks for prefab instantiation passed or not 
+    # Instantiates a new car prefab instance
     test_prefab = Prefab.get_prefab(EXISTING_TEST_PREFAB_FILE_NAME)
-
     test_instance = test_prefab.instantiate( 
         prefab_position=INSTANTIATED_TEST_PREFAB_POSITION)
     

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabTestUtils.py

@@ -18,20 +18,6 @@ import azlmbr.components as components
 import azlmbr.entity as entity
 import azlmbr.legacy.general as general
 
-def check_entity_at_position(entity_id, expected_entity_position):
-    entity_at_expected_position_result = (
-        "entity is at expected position",
-        "entity is *not* at expected position")
-
-    actual_entity_position = components.TransformBus(bus.Event, "GetWorldTranslation", entity_id)
-    is_at_position = actual_entity_position.IsClose(expected_entity_position)
-    Report.result(entity_at_expected_position_result, is_at_position)
-
-    if not is_at_position:
-        Report.info(f"Entity '{entity_id.ToString()}'\'s expected position: {expected_entity_position.ToString()}, actual position: {actual_entity_position.ToString()}")
-    
-    return is_at_position
-
 def check_entity_children_count(entity_id, expected_children_count):
     entity_children_count_matched_result = (
         "Entity with a unique name found",
@@ -47,19 +33,6 @@ def check_entity_children_count(entity_id, expected_children_count):
 
     return entity_children_count_matched
 
-def get_children_ids_by_name(entity_id, entity_name):
-    entity = EditorEntity(entity_id)
-    children_entity_ids = entity.get_children_ids()
-    
-    result = []
-    for child_entity_id in children_entity_ids:
-        child_entity = EditorEntity(child_entity_id)
-        child_entity_name = child_entity.get_name()
-        if child_entity_name == entity_name:
-            result.append(child_entity_id)
-
-    return result
-
 def open_base_tests_level():
     helper.init_idle()
     helper.open_level("Prefab", "Base")