Extract entity conversion logic into separate class

Issue-ID: AAI-4008
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>
Change-Id: Ic00d989ba97dd9e23d028d9e262ea2967d889e79

1 files changed, 119 insertions, 0 deletions

diff --git a/aai-core/src/test/java/org/onap/aai/rest/notification/EntityConverterTest.java b/aai-core/src/test/java/org/onap/aai/rest/notification/EntityConverterTest.java
new file mode 100644
index 00000000..cbfedef7
--- /dev/null
+++ b/aai-core/src/test/java/org/onap/aai/rest/notification/EntityConverterTest.java
@@ -0,0 +1,119 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2024 Deutsche Telekom. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.aai.rest.notification;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.util.List;
+
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.onap.aai.introspection.Introspector;
+import org.onap.aai.introspection.Loader;
+import org.onap.aai.introspection.exceptions.AAIUnmarshallingException;
+import org.onap.aai.parsers.uri.URIToObject;
+import org.onap.aai.setup.SchemaVersion;
+
+public class EntityConverterTest {
+
+    @Mock URIToObject parser;
+    @Mock Introspector introspector;
+    @Mock Loader loader;
+    @Mock List<Object> parentList;
+
+    EntityConverter entityConverter;
+
+    @BeforeEach
+    public void setUp() {
+        MockitoAnnotations.openMocks(this);
+        entityConverter = new EntityConverter(parser);
+    }
+
+    @Test
+    public void testConvert_topEntitySameAsEntity() throws AAIUnmarshallingException {
+        when(parser.getParentList()).thenReturn(parentList);
+        when(parser.getTopEntity()).thenReturn(introspector);
+        when(parser.getEntity()).thenReturn(introspector);
+
+        Introspector result = entityConverter.convert(introspector);
+
+        assertEquals(introspector, result);
+        verify(parser.getParentList()).clear();
+    }
+
+    @Test
+    public void testConvert_topEntityDifferentFromEntity_withVersionMismatch() throws AAIUnmarshallingException {
+        Introspector topEntity = mock(Introspector.class);
+        Introspector childEntity = mock(Introspector.class);
+        String json = "{}";
+
+        when(parser.getParentList()).thenReturn(parentList);
+        when(parser.getTopEntity()).thenReturn(topEntity);
+        when(parser.getEntity()).thenReturn(childEntity);
+        when(childEntity.getName()).thenReturn("smth");
+        when(parser.getLoader()).thenReturn(loader);
+        when(introspector.getVersion()).thenReturn(new SchemaVersion("v1"));
+        when(loader.getVersion()).thenReturn(new SchemaVersion("v2"));
+        when(introspector.marshal(false)).thenReturn(json);
+        when(loader.unmarshal(anyString(), eq(json))).thenReturn(childEntity);
+
+        Introspector result = entityConverter.convert(introspector);
+
+        assertEquals(topEntity, result);
+    }
+
+    @Test
+    public void testConvert_topEntityDifferentFromEntity_withoutVersionMismatch() throws AAIUnmarshallingException {
+        Introspector topEntity = mock(Introspector.class);
+        Introspector childEntity = mock(Introspector.class);
+
+        when(parser.getParentList()).thenReturn(parentList);
+        when(parser.getTopEntity()).thenReturn(topEntity);
+        when(parser.getEntity()).thenReturn(childEntity);
+        when(parser.getLoader()).thenReturn(loader);
+        when(introspector.getVersion()).thenReturn(new SchemaVersion("v1"));
+        when(loader.getVersion()).thenReturn(new SchemaVersion("v1"));
+
+        Introspector result = entityConverter.convert(introspector);
+
+        assertEquals(topEntity, result);
+        verify(parentList).add(any());
+    }
+
+    @Test
+    public void testGetTopEntityName() {
+        String topEntityName = "TopEntity";
+        when(parser.getTopEntityName()).thenReturn(topEntityName);
+
+        String result = entityConverter.getTopEntityName();
+
+        assertEquals(topEntityName, result);
+    }
+}