Unit test code for datalake seed code

Improved Topic Controller code coverage to 100%

Issue-ID: DCAEGEN2-1309

Change-Id: I5abec6336c21c5dc664aaa2eba362ef900658576
Signed-off-by: Rama-Huawei <rama.subba.reddy.s@huawei.com>

1 files changed, 187 insertions, 0 deletions

diff --git a/components/datalake-handler/feeder/src/test/java/org/onap/datalake/feeder/controller/TopicControllerTest.java b/components/datalake-handler/feeder/src/test/java/org/onap/datalake/feeder/controller/TopicControllerTest.java
new file mode 100644
index 00000000..a770f50f
--- /dev/null
+++ b/components/datalake-handler/feeder/src/test/java/org/onap/datalake/feeder/controller/TopicControllerTest.java
@@ -0,0 +1,187 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : DATALAKE
+ * ================================================================================
+ * Copyright (C) 2018-2019 Huawei. 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.datalake.feeder.controller;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.onap.datalake.feeder.config.ApplicationConfiguration;
+import org.onap.datalake.feeder.domain.Db;
+import org.onap.datalake.feeder.domain.Topic;
+import org.onap.datalake.feeder.repository.TopicRepository;
+import org.onap.datalake.feeder.service.DbService;
+import org.onap.datalake.feeder.service.DmaapService;
+import org.onap.datalake.feeder.service.TopicService;
+import org.springframework.validation.BindingResult;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.when;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TopicControllerTest {
+
+    static String DEFAULT_TOPIC_NAME = "_DL_DEFAULT_";
+
+    @Mock
+    private HttpServletResponse httpServletResponse;
+
+    @Mock
+    private BindingResult mockBindingResult;
+
+    @Mock
+    private TopicRepository topicRepository;
+
+    @InjectMocks
+    private TopicService topicService1;
+
+    @Mock
+    private ApplicationConfiguration config;
+
+    @Mock
+    private DbService dbService1;
+
+    @Mock
+    private DmaapService dmaapService1;
+
+    @Before
+    public void setupTest() {
+        MockitoAnnotations.initMocks(this);
+        // While the default boolean return value for a mock is 'false',
+        // it's good to be explicit anyway:
+        when(mockBindingResult.hasErrors()).thenReturn(false);
+    }
+
+    public void setAccessPrivateFields(TopicController topicController) throws NoSuchFieldException,
+            IllegalAccessException {
+        Field topicService = topicController.getClass().getDeclaredField("topicService");
+        topicService.setAccessible(true);
+        topicService.set(topicController, topicService1);
+        Field topicRepository1 = topicController.getClass().getDeclaredField("topicRepository");
+        topicRepository1.setAccessible(true);
+        topicRepository1.set(topicController, topicRepository);
+        Field dbService = topicController.getClass().getDeclaredField("dbService");
+        dbService.setAccessible(true);
+        dbService.set(topicController, dbService1);
+    }
+
+    @Test
+    public void testCreateTopic() throws IOException, NoSuchFieldException, IllegalAccessException {
+        TopicController topicController = new TopicController();
+        setAccessPrivateFields(topicController);
+        when(topicRepository.findById(DEFAULT_TOPIC_NAME)).thenReturn(Optional.of(new Topic(DEFAULT_TOPIC_NAME)));
+        when(config.getDefaultTopicName()).thenReturn(DEFAULT_TOPIC_NAME);
+        Topic topicName = topicController.createTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(new Topic("a"), topicName);
+        when(mockBindingResult.hasErrors()).thenReturn(true);
+        topicName = topicController.createTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(null, topicName);
+        when(mockBindingResult.hasErrors()).thenReturn(false);
+        Topic a = new Topic("a");
+        a.setName("a");
+        when(topicRepository.findById("a")).thenReturn(Optional.of(a));
+        topicName = topicController.createTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(null, topicName);
+    }
+
+    @Test
+    public void testUpdateTopic() throws IOException, NoSuchFieldException, IllegalAccessException {
+        TopicController topicController = new TopicController();
+        setAccessPrivateFields(topicController);
+        Topic topicName = topicController.updateTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(null, topicName);
+        Topic a = new Topic("a");
+        a.setName("a");
+        when(topicRepository.findById("a")).thenReturn(Optional.of(a));
+        topicName = topicController.updateTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(new Topic("a"), topicName);
+        when(mockBindingResult.hasErrors()).thenReturn(true);
+        topicName = topicController.updateTopic(new Topic("a"), mockBindingResult, httpServletResponse);
+        assertEquals(null, topicName);
+
+        ArrayList<Topic> topics = new ArrayList<>();
+        topics.add(a);
+        when(topicRepository.findAll()).thenReturn(topics);
+        Iterable<Topic> list = topicController.list();
+        for (Topic newTopic : list) {
+            assertEquals(a, newTopic);
+        }
+    }
+
+    @Test
+    public void testAddDb() throws NoSuchFieldException, IllegalAccessException, IOException {
+        TopicController topicController = new TopicController();
+        setAccessPrivateFields(topicController);
+        String dbName = "Elecsticsearch";
+        String name = "a";
+        Topic topic = new Topic(name);
+        topic.setEnabled(true);
+        Set<Db> dbSet = new HashSet<>();
+        dbSet.add(new Db(dbName));
+        topic.setDbs(dbSet);
+
+        when(topicRepository.findById(name)).thenReturn(Optional.of(topic));
+        topicController.addDb("a", dbName, httpServletResponse);
+        topicController.deleteDb("a", dbName, httpServletResponse);
+    }
+
+    @Test
+    public void testGetTopicDbs() throws NoSuchFieldException, IllegalAccessException, IOException {
+        TopicController topicController = new TopicController();
+        setAccessPrivateFields(topicController);
+        String dbName = "Elecsticsearch";
+        String name = "a";
+        Topic topic = new Topic(name);
+        topic.setEnabled(true);
+        Set<Db> dbSet = new HashSet<>();
+        dbSet.add(new Db(dbName));
+        topic.setDbs(dbSet);
+
+        when(topicRepository.findById(name)).thenReturn(Optional.of(topic));
+        topicController.getTopicDbs("a");
+    }
+
+    @Test
+    public void testListDmaapTopics() throws NoSuchFieldException, IllegalAccessException, IOException {
+        TopicController topicController = new TopicController();
+        Field dmaapService = topicController.getClass().getDeclaredField("dmaapService");
+        dmaapService.setAccessible(true);
+        dmaapService.set(topicController, dmaapService1);
+        ArrayList<String> topics = new ArrayList<>();
+        topics.add("a");
+        when(dmaapService1.getTopics()).thenReturn(topics);
+        List<String> strings = topicController.listDmaapTopics();
+        for (String topic : strings) {
+            assertEquals("a", topic);
+        }
+    }
+}