WriterOutputStreamTest.java

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 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2015 by Pentaho : http://www.pentaho.com
 *
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 *
 * Licensed 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,
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 * See the License for the specific language governing permissions and
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package org.pentaho.di.core;

import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.io.Writer;

import static org.junit.Assert.*;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

public class WriterOutputStreamTest {
  Writer writer = mock( Writer.class );
  final String encoding = "UTF8";

  @Before
  public void setup() {
    writer = mock( Writer.class );
  }

  @Test
  public void testConstructor() {
    WriterOutputStream stream = new WriterOutputStream( writer );
    assertSame( writer, stream.getWriter() );
    stream = new WriterOutputStream( writer, encoding );
    assertSame( writer, stream.getWriter() );
    assertSame( encoding, stream.getEncoding() );
  }

  @Test
  public void testWrite() throws IOException {
    WriterOutputStream stream = new WriterOutputStream( writer );
    stream.write( 68 );
    stream.write( "value".getBytes(), 1, 3 );
    stream.write( "value".getBytes() );
    stream.flush();
    stream.close();
    verify( writer ).append( new String( new byte[] { (byte) 68 } ) );
    verify( writer ).append( "alu" );
    verify( writer ).append( "value" );
    verify( writer ).flush();
    verify( writer ).close();
    assertNull( stream.getWriter() );

    writer = mock( Writer.class );
    WriterOutputStream streamWithEncoding = new WriterOutputStream( writer, encoding );
    streamWithEncoding.write( "value".getBytes( encoding ) );
    verify( writer ).append( "value" );
  }
}