content: /*
   * 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.ambari.server.utils;
  
  import org.junit.Test;
  
  import junit.framework.Assert;
  
  /**
   * Test JsonUtils
   */
  public class TestJsonUtils {
    /**
     * Tests {@link org.apache.ambari.server.utils.JsonUtils}
     * @throws Exception
     */
    @Test
    public void testIsValidJson() throws Exception {
      Assert.assertFalse(JsonUtils.isValidJson(null));
      Assert.assertFalse(JsonUtils.isValidJson(""));
      Assert.assertFalse(JsonUtils.isValidJson("{"));
      Assert.assertFalse(JsonUtils.isValidJson("}"));
      Assert.assertTrue(JsonUtils.isValidJson("{}"));
      Assert.assertTrue(JsonUtils.isValidJson("{ \"stack\" : \"HDP\" }"));
      Assert.assertTrue(JsonUtils.isValidJson("{\n" +
          "  \"stack_selector\": [\"hdp-select\", \"/usr/bin/hdp-select\", \"hdp-select\"],\n" +
          "  \"conf_selector\": [\"conf-select\", \"/usr/bin/conf-select\", \"conf-select\"]\n" +
          "}"));
      Assert.assertFalse(JsonUtils.isValidJson("{\n" +
          "  \"stack_selector\": [\"hdp-select\", \"/usr/bin/hdp-select\", \"hdp-select\"],\n" +
          "  \"conf_selector\": [\"conf-select\", \"/usr/bin/conf-select\", \"conf-select\"]\n" +
          ""));
    }
  }
  