UsagePowerMockTest.java

/* Copyright 2013 Jonatan Jönsson
 *
 *    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.
 */
package se.softhouse.jargo;

import static org.fest.assertions.Assertions.assertThat;
import static org.fest.assertions.Fail.fail;

import java.io.IOException;
import java.util.Collections;
import java.util.Locale;

import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import se.softhouse.jargo.utils.NastyStringBuilder;

@RunWith(PowerMockRunner.class)
@PrepareForTest({NastyStringBuilder.class, Usage.class})
public class UsagePowerMockTest
{

	@Test
	@Ignore("Can be enabled when http://code.google.com/p/powermock/issues/list?q=label:Milestone-Release1.6 has been released")
	public void testThatIOExceptionIsPropagatedAsAssertionErrorForImpossibleCase_StringBuilder()
	{
		final IOException thrown = new IOException("Can't happen");
		Appendable nastyBuilder = NastyStringBuilder.thatThrows(thrown);
		Usage usage = new Usage(Collections.<Argument<?>>emptyList(), Locale.ENGLISH, ProgramInformation.AUTO, false);

		try
		{
			usage.printOn((StringBuilder) nastyBuilder);
			fail("IOException wasn't propagated correctly");
		}
		catch(AssertionError expected)
		{
			assertThat(expected).hasMessage("Can't happen");
		}
	}
}