[Fix-16617][Seatunnel] Use master option for engine deploy mode

Author: JinRudy

dolphinscheduler-task-plugin/dolphinscheduler-task-seatunnel/src/main/java/org/apache/dolphinscheduler/plugin/task/seatunnel/self/SeatunnelEngineTask.java

@@ -46,7 +46,7 @@ public void init() {
     public List<String> buildOptions() throws Exception {
         List<String> args = super.buildOptions();
         if (!Objects.isNull(seatunnelParameters.getDeployMode())) {
-            args.add(Constants.DEPLOY_MODE_OPTIONS);
+            args.add(Constants.MASTER_OPTIONS);
             args.add(seatunnelParameters.getDeployMode().getCommand());
         }
         if (StringUtils.isNotBlank(seatunnelParameters.getOthers())) {

dolphinscheduler-task-plugin/dolphinscheduler-task-seatunnel/src/test/java/org/apache/dolphinscheduler/plugin/task/seatunnel/self/SeatunnelEngineTaskTest.java

@@ -0,0 +1,116 @@
+/*
+ * 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.plugin.task.seatunnel.self;
+
+import org.apache.dolphinscheduler.common.utils.JSONUtils;
+import org.apache.dolphinscheduler.plugin.task.api.TaskExecutionContext;
+import org.apache.dolphinscheduler.plugin.task.seatunnel.DeployModeEnum;
+
+import org.apache.commons.io.FileUtils;
+
+import java.lang.reflect.Field;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+
+public class SeatunnelEngineTaskTest {
+
+    private static final String EXECUTE_PATH = "/tmp";
+    private static final String TASK_ID = "1234";
+    private static final String RAW_SCRIPT =
+            "env {\n  job.mode = \"BATCH\"\n}\nsource {\n  FakeSource {}\n}\nsink {\n  Console {}\n}";
+
+    private MockedStatic<FileUtils> mockedStaticFileUtils;
+
+    @BeforeEach
+    public void setUp() {
+        mockedStaticFileUtils = Mockito.mockStatic(FileUtils.class);
+    }
+
+    @AfterEach
+    public void after() {
+        mockedStaticFileUtils.close();
+    }
+
+    @Test
+    public void buildOptionsUsesMasterForDeployMode() throws Exception {
+        SeatunnelEngineParameters seatunnelParameters = newSeatunnelEngineParameters();
+        seatunnelParameters.setDeployMode(DeployModeEnum.cluster);
+
+        SeatunnelEngineTask task = newSeatunnelEngineTask(seatunnelParameters);
+
+        String command = String.join(" ", task.buildOptions());
+        String expectedCommand = String.format("--config %s/seatunnel_%s.conf --master cluster", EXECUTE_PATH, TASK_ID);
+        Assertions.assertEquals(expectedCommand, command);
+    }
+
+    @Test
+    public void buildOptionsOmitsMasterWhenDeployModeMissing() throws Exception {
+        SeatunnelEngineParameters seatunnelParameters = newSeatunnelEngineParameters();
+
+        SeatunnelEngineTask task = newSeatunnelEngineTask(seatunnelParameters);
+
+        String command = String.join(" ", task.buildOptions());
+        String expectedCommand = String.format("--config %s/seatunnel_%s.conf", EXECUTE_PATH, TASK_ID);
+        Assertions.assertEquals(expectedCommand, command);
+    }
+
+    @Test
+    public void buildOptionsAppendsOthersWhenPresent() throws Exception {
+        SeatunnelEngineParameters seatunnelParameters = newSeatunnelEngineParameters();
+        seatunnelParameters.setDeployMode(DeployModeEnum.local);
+        seatunnelParameters.setOthers("--name demo-job");
+
+        SeatunnelEngineTask task = newSeatunnelEngineTask(seatunnelParameters);
+
+        String command = String.join(" ", task.buildOptions());
+        String expectedCommand =
+                String.format("--config %s/seatunnel_%s.conf --master local --name demo-job", EXECUTE_PATH, TASK_ID);
+        Assertions.assertEquals(expectedCommand, command);
+    }
+
+    private SeatunnelEngineParameters newSeatunnelEngineParameters() {
+        SeatunnelEngineParameters seatunnelParameters = new SeatunnelEngineParameters();
+        seatunnelParameters.setUseCustom(true);
+        seatunnelParameters.setRawScript(RAW_SCRIPT);
+        return seatunnelParameters;
+    }
+
+    private SeatunnelEngineTask newSeatunnelEngineTask(SeatunnelEngineParameters seatunnelParameters) throws Exception {
+        TaskExecutionContext taskExecutionContext = new TaskExecutionContext();
+        taskExecutionContext.setExecutePath(EXECUTE_PATH);
+        taskExecutionContext.setTaskAppId(TASK_ID);
+        taskExecutionContext.setTaskParams(JSONUtils.toJsonString(seatunnelParameters));
+
+        SeatunnelEngineTask task = new SeatunnelEngineTask(taskExecutionContext);
+        task.setSeatunnelParameters(seatunnelParameters);
+        setPrivateSeatunnelParameters(task, seatunnelParameters);
+        return task;
+    }
+
+    private void setPrivateSeatunnelParameters(SeatunnelEngineTask task,
+                                               SeatunnelEngineParameters seatunnelParameters) throws Exception {
+        Field field = SeatunnelEngineTask.class.getDeclaredField("seatunnelParameters");
+        field.setAccessible(true);
+        field.set(task, seatunnelParameters);
+    }
+}