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.kafka.trogdor.common;
  
  import org.apache.kafka.test.TestUtils;
  
  import com.fasterxml.jackson.annotation.JsonCreator;
  import com.fasterxml.jackson.annotation.JsonProperty;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import java.io.File;
  import java.nio.file.Files;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  @Timeout(value = 120)
  public class JsonUtilTest {
  
      @Test
      public void testOpenBraceComesFirst() {
          assertTrue(JsonUtil.openBraceComesFirst("{}"));
          assertTrue(JsonUtil.openBraceComesFirst(" \t{\"foo\":\"bar\"}"));
          assertTrue(JsonUtil.openBraceComesFirst(" { \"foo\": \"bar\" }"));
          assertFalse(JsonUtil.openBraceComesFirst("/my/file/path"));
          assertFalse(JsonUtil.openBraceComesFirst("mypath"));
          assertFalse(JsonUtil.openBraceComesFirst(" blah{}"));
      }
  
      static final class Foo {
          @JsonProperty
          final int bar;
  
          @JsonCreator
          Foo(@JsonProperty("bar") int bar) {
              this.bar = bar;
          }
      }
  
      @Test
      public void testObjectFromCommandLineArgument() throws Exception {
          assertEquals(123, JsonUtil.objectFromCommandLineArgument("{\"bar\":123}", Foo.class).bar);
          assertEquals(1, JsonUtil.objectFromCommandLineArgument("   {\"bar\": 1}   ", Foo.class).bar);
          File tempFile = TestUtils.tempFile();
          try {
              Files.writeString(tempFile.toPath(), "{\"bar\": 456}");
              assertEquals(456, JsonUtil.objectFromCommandLineArgument(tempFile.getAbsolutePath(), Foo.class).bar);
          } finally {
              Files.delete(tempFile.toPath());
          }
      }
  }
  