JingsongLi commented on a change in pull request #13402:
URL: https://github.com/apache/flink/pull/13402#discussion_r489371513
##
File path:
flink-streaming-java/src/test/java/org/apache/flink/streaming/api/datastream/DataStreamSourceTest.java
##
@@ -0,0 +1,56 @@
+/*
+ * 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.flink.streaming.api.datastream;
+
+import org.apache.flink.api.common.eventtime.WatermarkStrategy;
+import org.apache.flink.api.connector.source.Boundedness;
+import org.apache.flink.api.connector.source.mocks.MockSource;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit test for {@link DataStreamSource}.
+ */
+public class DataStreamSourceTest {
+
+ /**
+* test Constructor for new Sources (FLIP-27).
+*/
+ @Test
+ public void testConstructor(){
+ Integer expectParallelism = 100;
+ Boolean expectIsParallel = true;
Review comment:
ditto `boolean`
##
File path:
flink-streaming-java/src/test/java/org/apache/flink/streaming/api/datastream/DataStreamSourceTest.java
##
@@ -0,0 +1,56 @@
+/*
+ * 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.flink.streaming.api.datastream;
+
+import org.apache.flink.api.common.eventtime.WatermarkStrategy;
+import org.apache.flink.api.connector.source.Boundedness;
+import org.apache.flink.api.connector.source.mocks.MockSource;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit test for {@link DataStreamSource}.
+ */
+public class DataStreamSourceTest {
+
+ /**
+* test Constructor for new Sources (FLIP-27).
+*/
+ @Test
+ public void testConstructor(){
+ Integer expectParallelism = 100;
Review comment:
int is OK.
##
File path:
flink-streaming-java/src/test/java/org/apache/flink/streaming/api/datastream/DataStreamSourceTest.java
##
@@ -0,0 +1,56 @@
+/*
+ * 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.flink.streaming.api.datastream;
+
+import org.apache.flink.api.common.eventtime.WatermarkStrategy;
+import org.apache.flink.api.connector.source.Boundedness;
+import org.apache.flink.api.connector.source.mocks.MockSource;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit test for {@link DataStreamSource}.
+ */
+public class DataStreamSourc