hadoop-mapreduce/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/webapp/hamlet/TestParseSelector.java

/**
* 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.hadoop.yarn.webapp.hamlet;

import org.junit.Test;
import static org.junit.Assert.*;

import org.apache.hadoop.yarn.webapp.WebAppException;

import static org.apache.hadoop.yarn.webapp.hamlet.HamletImpl.*;

public class TestParseSelector {

  @Test public void testNormal() {
    String[] res = parseSelector("#id.class");
    assertEquals("id", res[S_ID]);
    assertEquals("class", res[S_CLASS]);
  }

  @Test public void testMultiClass() {
    String[] res = parseSelector("#id.class1.class2");
    assertEquals("id", res[S_ID]);
    assertEquals("class1 class2", res[S_CLASS]);
  }

  @Test public void testMissingId() {
    String[] res = parseSelector(".class");
    assertNull(res[S_ID]);
    assertEquals("class", res[S_CLASS]);
  }

  @Test public void testMissingClass() {
    String[] res = parseSelector("#id");
    assertEquals("id", res[S_ID]);
    assertNull(res[S_CLASS]);
  }

  @Test(expected=WebAppException.class) public void testMissingAll() {
    parseSelector("");
  }
}