content: /*
   * Created on Jul 25, 2009
   * 
   * 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, 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.
   * 
   * Copyright @2009-2013 the original author or authors.
   */
  package org.fest.swing.core;
  
  import static org.fest.assertions.Assertions.assertThat;
  import static org.fest.swing.format.Formatting.format;
  
  import java.awt.Component;
  
  import javax.swing.JButton;
  import javax.swing.JComboBox;
  
  import org.junit.Test;
  
  /**
   * Tests for {@link BasicComponentPrinter#printComponents(java.io.PrintStream, Class)}.
   * 
   * @author Alex Ruiz
   * @author Yvonne Wang
   */
  public class BasicComponentPrinter_printComponentsByType_Test extends BasicComponentPrinter_TestCase {
    @Test(expected = NullPointerException.class)
    public void should_throw_error_if_OutputStream_is_null() {
      printer.printComponents(null, JButton.class);
    }
  
    @Test(expected = NullPointerException.class)
    public void should_throw_error_if_type_to_match_is_null() {
      Class<? extends Component> type = null;
      printer.printComponents(out, type);
    }
  
    @Test
    public void should_print_all_Components_of_given_type() {
      printer.printComponents(out, JButton.class);
      assertThat(out.printed()).containsOnly(format(windowOne.button), format(windowTwo.button));
    }
  
    @Test
    public void should_not_print_Components_if_type_does_not_match() {
      printer.printComponents(out, JComboBox.class);
      assertThat(out.printed()).isEmpty();
    }
  }
  