Github user chiwanpark commented on a diff in the pull request:
https://github.com/apache/flink/pull/1097#discussion_r40297666
--- Diff:
flink-java/src/test/java/org/apache/flink/api/java/utils/RequiredParameterTest.java
---
@@ -0,0 +1,137 @@
+/*
+ * 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.api.java.utils;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import org.hamcrest.CoreMatchers;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Tests for RequiredParameter class and its interactions with
ParameterTool
+ */
+public class RequiredParameterTest {
+
+ @Test(expected = RequiredParameterException.class)
+ public void testCheckWithMissingParameterValues() throws
RequiredParameterException {
+ ParameterTool parameter = ParameterTool.fromArgs(new
String[]{"--berlin"});
+ RequiredParameter required = new RequiredParameter();
+ required.add(new Option("berlin"));
+ required.check(parameter);
+ }
+
+ @Test
+ public void testCheckWithValidParameters() throws
RequiredParameterException {
+ ParameterTool parameter = ParameterTool.fromArgs(new
String[]{"--berlin", "value"});
+ RequiredParameter required = new RequiredParameter();
+ required.add(new Option("berlin"));
+ required.check(parameter);
+ }
--- End diff --
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