/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2008 Oracle. All rights reserved.
*
* $Id: ExceptionWrapperTest.java,v 12.8 2008/02/07 17:12:33 mark Exp $
*/
package com.sleepycat.util.test;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import com.sleepycat.util.ExceptionUnwrapper;
import com.sleepycat.util.IOExceptionWrapper;
import com.sleepycat.util.RuntimeExceptionWrapper;
import com.sleepycat.util.test.SharedTestUtils;
/**
* @author Mark Hayes
*/
public class ExceptionWrapperTest extends TestCase {
public static void main(String[] args)
throws Exception {
junit.framework.TestResult tr =
junit.textui.TestRunner.run(suite());
if (tr.errorCount() > 0 ||
tr.failureCount() > 0) {
System.exit(1);
} else {
System.exit(0);
}
}
public static Test suite()
throws Exception {
TestSuite suite = new TestSuite(ExceptionWrapperTest.class);
return suite;
}
public ExceptionWrapperTest(String name) {
super(name);
}
public void setUp() {
SharedTestUtils.printTestName("ExceptionWrapperTest." + getName());
}
public void testIOWrapper()
throws Exception {
try {
throw new IOExceptionWrapper(new RuntimeException("msg"));
} catch (IOException e) {
Exception ee = ExceptionUnwrapper.unwrap(e);
assertTrue(ee instanceof RuntimeException);
assertEquals("msg", ee.getMessage());
Throwable t = ExceptionUnwrapper.unwrapAny(e);
assertTrue(t instanceof RuntimeException);
assertEquals("msg", t.getMessage());
}
}
public void testRuntimeWrapper()
throws Exception {
try {
throw new RuntimeExceptionWrapper(new IOException("msg"));
} catch (RuntimeException e) {
Exception ee = ExceptionUnwrapper.unwrap(e);
assertTrue(ee instanceof IOException);
assertEquals("msg", ee.getMessage());
Throwable t = ExceptionUnwrapper.unwrapAny(e);
assertTrue(t instanceof IOException);
assertEquals("msg", t.getMessage());
}
}
public void testErrorWrapper()
throws Exception {
try {
throw new RuntimeExceptionWrapper(new Error("msg"));
} catch (RuntimeException e) {
try {
ExceptionUnwrapper.unwrap(e);
fail();
} catch (Error ee) {
assertTrue(ee instanceof Error);
assertEquals("msg", ee.getMessage());
}
Throwable t = ExceptionUnwrapper.unwrapAny(e);
assertTrue(t instanceof Error);
assertEquals("msg", t.getMessage());
}
}
/**
* Generates a stack trace for a nested exception and checks the output
* for the nested exception.
*/
public void testStackTrace() {
/* Nested stack traces are not avilable in Java 1.3. */
String version = System.getProperty("java.version");
if (version.startsWith("1.3.")) {
return;
}
Exception ex = new Exception("some exception");
String causedBy = "Caused by: java.lang.Exception: some exception";
try {
throw new RuntimeExceptionWrapper(ex);
} catch (RuntimeException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String s = sw.toString();
assertTrue(s.indexOf(causedBy) != -1);
}
try {
throw new IOExceptionWrapper(ex);
} catch (IOException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String s = sw.toString();
assertTrue(s.indexOf(causedBy) != -1);
}
}
}