content: /**
   * Copyright 2015-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * A copy of the License is located at
   *
   *     http://aws.amazon.com/apache2.0/
   *
   * or in the "license" file accompanying this file. This file 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 com.amazon.android.utils;
  
  import org.junit.Test;
  
  import android.content.Context;
  import android.support.test.InstrumentationRegistry;
  
  import java.io.IOException;
  
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  /**
   * This class tests the {@link FileHelper} class.
   */
  public class FileHelperTest {
  
      /**
       * Test the constructor.
       */
      @Test
      public void testConstructor() {
  
          assertNotNull(new FileHelper());
      }
  
      /**
       * Tests the {@link FileHelper#readFile(Context, String)} method with a test file.
       */
      @Test
      public void testReadFile() throws Exception {
  
          String result = FileHelper.readFile(InstrumentationRegistry.getContext(),
                  "FileHelperTest1.txt");
  
          assertTrue(result.trim().equals("This is a test!"));
  
      }
  
      /**
       * Tests the {@link FileHelper#readFile(Context, String)} method with a fake test file to
       * produce an {@link IOException}.
       */
      @Test(expected = IOException.class)
      public void testReadFileWithBadFilePath() throws Exception {
  
          FileHelper.readFile(InstrumentationRegistry.getContext(), "FakeFile");
      }
  }
  