[TEST] add task definition log service test (#15631)

Co-authored-by: abzymeinsjtu <abzymeinsjtu@B-54Q8MD6R-0244.local>
Co-authored-by: Eric Gao <ericgao.apache@gmail.com>

dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/TaskDefinitionLogServiceTest.java

@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+
+package org.apache.dolphinscheduler.api.service;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.mockito.Mockito.when;
+
+import org.apache.dolphinscheduler.api.service.impl.TaskDefinitionLogServiceImpl;
+import org.apache.dolphinscheduler.dao.entity.ProcessTaskRelationLog;
+import org.apache.dolphinscheduler.dao.mapper.ProcessTaskRelationLogMapper;
+import org.apache.dolphinscheduler.dao.repository.ProcessTaskRelationLogDao;
+import org.apache.dolphinscheduler.dao.repository.TaskDefinitionLogDao;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.mockito.junit.jupiter.MockitoSettings;
+import org.mockito.quality.Strictness;
+
+@ExtendWith(MockitoExtension.class)
+@MockitoSettings(strictness = Strictness.LENIENT)
+public class TaskDefinitionLogServiceTest {
+
+    @InjectMocks
+    private TaskDefinitionLogServiceImpl taskDefinitionLogService;
+
+    @Mock
+    private ProcessTaskRelationLogDao processTaskRelationLogDao;
+
+    @Mock
+    private TaskDefinitionLogDao taskDefinitionLogDao;
+    @Mock
+    private ProcessTaskRelationLogMapper processTaskRelationLogMapper;
+
+    private List<ProcessTaskRelationLog> getProcessTaskRelationList() {
+        ProcessTaskRelationLog processTaskRelationLog1 = new ProcessTaskRelationLog();
+        processTaskRelationLog1.setPreTaskCode(0L);
+        processTaskRelationLog1.setPostTaskCode(1L);
+        processTaskRelationLog1.setPostTaskVersion(1);
+
+        ProcessTaskRelationLog processTaskRelationLog2 = new ProcessTaskRelationLog();
+        processTaskRelationLog2.setPreTaskCode(0L);
+        processTaskRelationLog2.setPostTaskCode(1L);
+        processTaskRelationLog2.setPostTaskVersion(2);
+
+        return Arrays.asList(
+                processTaskRelationLog1,
+                processTaskRelationLog2);
+    }
+
+    @Test
+    @SuppressWarnings("unchecked")
+    public void testDeleteTaskByWorkflowDefinitionCode() {
+        when(processTaskRelationLogDao.queryByWorkflowDefinitionCode(1L)).thenReturn(Collections.emptyList());
+        assertDoesNotThrow(() -> taskDefinitionLogService.deleteTaskByWorkflowDefinitionCode(1L));
+
+        when(processTaskRelationLogDao.queryByWorkflowDefinitionCode(2L)).thenReturn(getProcessTaskRelationList());
+        assertDoesNotThrow(() -> taskDefinitionLogService.deleteTaskByWorkflowDefinitionCode(2L));
+    }
+}