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/*
* Copyright 2007 - 2018 ETH Zuerich, CISD and SIS.
*
* 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 ch.systemsx.cisd.base.exceptions;
import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertNotNull;
import static org.testng.AssertJUnit.assertNull;
import static org.testng.AssertJUnit.assertTrue;
import static org.testng.AssertJUnit.fail;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.testng.annotations.Test;
import ch.systemsx.cisd.base.BuildAndEnvironmentInfo;
import ch.systemsx.cisd.base.exceptions.CheckedExceptionTunnel;
import ch.systemsx.cisd.base.exceptions.IOExceptionUnchecked;
/**
* Test cases for {@link IOExceptionUnchecked}.
*
* @author Bernd Rinn
*/
public class IOExceptionUncheckedTests
{
@SuppressWarnings("resource")
private void generateFileNotFoundException() throws IOExceptionUnchecked
{
try
{
new FileInputStream(new File("doesnt.exist"));
} catch (IOException ex)
{
throw CheckedExceptionTunnel.wrapIfNecessary(ex);
}
}
@Test
public void testWrapUnwrapIOException()
{
try
{
generateFileNotFoundException();
fail("No IOException thrown");
} catch (IOExceptionUnchecked e)
{
final Exception ex = CheckedExceptionTunnel.unwrapIfNecessary(e);
assertTrue(ex instanceof FileNotFoundException);
assertTrue(ex.getMessage().startsWith("doesnt.exist"));
}
}
@Test
public void testWrapUnwrapNonIOException()
{
try
{
throw new IOExceptionUnchecked(new IllegalStateException("Don't like this state"));
} catch (CheckedExceptionTunnel e)
{
final Exception ex = CheckedExceptionTunnel.unwrapIfNecessary(e);
assertTrue(ex instanceof IOException);
assertEquals("IllegalStateException: Don't like this state", ex.getMessage());
assertNotNull(ex.getCause());
assertTrue(ex.getCause() instanceof IllegalStateException);
assertEquals("Don't like this state", ex.getCause().getMessage());
}
}
@Test
public void testWrapUnwrapIOExceptionGivingMsg()
{
try
{
throw new IOExceptionUnchecked("Some message");
} catch (CheckedExceptionTunnel e)
{
final Exception ex = CheckedExceptionTunnel.unwrapIfNecessary(e);
assertTrue(ex instanceof IOException);
assertEquals("Some message", ex.getMessage());
assertNull(ex.getCause());
}
}
public static void main(String[] args) throws Throwable
{
System.out.println(BuildAndEnvironmentInfo.INSTANCE);
System.out.println("Test class: " + IOExceptionUncheckedTests.class.getSimpleName());
System.out.println();
final IOExceptionUncheckedTests test = new IOExceptionUncheckedTests();
for (Method m : IOExceptionUncheckedTests.class.getMethods())
{
final Test testAnnotation = m.getAnnotation(Test.class);
if (testAnnotation == null)
{
continue;
}
if (m.getParameterTypes().length == 0)
{
System.out.println("Running " + m.getName());
try
{
m.invoke(test);
} catch (InvocationTargetException wrapperThrowable)
{
final Throwable th = wrapperThrowable.getCause();
boolean exceptionFound = false;
for (Class<?> expectedExClazz : testAnnotation.expectedExceptions())
{
if (expectedExClazz == th.getClass())
{
exceptionFound = true;
break;
}
}
if (exceptionFound == false)
{
throw th;
}
}
}
}
System.out.println("Tests OK!");
}
}
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