content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.underfs.swift;
  
  import static org.mockito.Mockito.verify;
  import static org.powermock.api.mockito.PowerMockito.when;
  
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  import org.junit.runner.RunWith;
  import org.powermock.api.mockito.PowerMockito;
  import org.powermock.modules.junit4.PowerMockRunner;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.net.HttpURLConnection;
  
  /**
   * Tests for the {@link SwiftOutputStream} class.
   */
  @RunWith(PowerMockRunner.class)
  public class SwiftOutputStreamTest {
  
    private OutputStream mOutputStreamMock;
    private HttpURLConnection mHttpConMock;
  
    /**
     * The exception expected to be thrown.
     */
    @Rule
    public final ExpectedException mThrown = ExpectedException.none();
  
    /**
     * Sets the properties and configuration before each test runs.
     */
    @Before
    public void before() throws Exception {
      mOutputStreamMock = PowerMockito.mock(OutputStream.class);
      mHttpConMock = PowerMockito.mock(HttpURLConnection.class);
      when(mHttpConMock.getOutputStream()).thenReturn(mOutputStreamMock);
    }
  
    /**
     * Tests to ensure IOException is thrown if {@link HttpURLConnection#getOutputStream()} throws an
     * IOException.
     */
    @Test
    public void testConstructor() throws Exception {
      String errorMessage = "protocol doesn't support output";
      when(mHttpConMock.getOutputStream()).thenThrow(new IOException(errorMessage));
      mThrown.expect(IOException.class);
      mThrown.expectMessage(errorMessage);
      new SwiftOutputStream(mHttpConMock).close();
    }
  
    /**
     * Tests to ensure {@link SwiftOutputStream#write(int)} calls {@link OutputStream#write(int)}.
     */
    @Test
    public void testWrite1() throws Exception {
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      stream.write(1);
      stream.close();
      verify(mOutputStreamMock).write(1);
    }
  
    /**
     * Tests to ensure {@link SwiftOutputStream#write(byte[], int, int)} calls
     * {@link OutputStream#write(byte[], int, int)} .
     */
    @Test
    public void testWrite2() throws Exception {
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      byte[] b = new byte[1];
      stream.write(b, 1, 1);
      stream.close();
      verify(mOutputStreamMock).write(b, 1, 1);
    }
  
    /**
     * Tests to ensure {@link SwiftOutputStream#write(byte[])} calls
     * {@link OutputStream#write(byte[])}.
     */
    @Test
    public void testWrite3() throws Exception {
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      byte[] b = new byte[1];
      stream.write(b);
      stream.close();
      verify(mOutputStreamMock).write(b);
    }
  
    /**
     * Tests to ensure {@link HttpURLConnection#getErrorStream()} is called when 400 is returned.
     */
    @Test
    public void testCloseError() throws Exception {
      when(mHttpConMock.getResponseCode()).thenReturn(400);
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      stream.close();
      verify(mHttpConMock).getErrorStream();
      verify(mHttpConMock).disconnect();
    }
  
    /**
     * Tests to ensure {@link HttpURLConnection#getInputStream()} is called when 200 is returned.
     */
    @Test
    public void testCloseSuccess() throws Exception {
      when(mHttpConMock.getResponseCode()).thenReturn(200);
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      stream.close();
      verify(mHttpConMock).getInputStream();
      verify(mHttpConMock).disconnect();
    }
  
    /**
     * Tests to ensure {@link SwiftOutputStream#flush()} calls {@link OutputStream#flush()}.
     */
    @Test
    public void testFlush() throws Exception {
      SwiftOutputStream stream = new SwiftOutputStream(mHttpConMock);
      stream.flush();
      stream.close();
      verify(mOutputStreamMock).flush();
    }
  }
  