Java tutorial
package junit.framework; import java.io.PrintWriter; import java.io.StringWriter; /** * A <code>TestFailure</code> collects a failed test together with * the caught exception. * @see TestResult */ public class TestFailure extends Object { protected Test fFailedTest; protected Throwable fThrownException; /** * Constructs a TestFailure with the given test and exception. */ public TestFailure(Test failedTest, Throwable thrownException) { fFailedTest = failedTest; fThrownException = thrownException; } /** * Gets the failed test. */ public Test failedTest() { return fFailedTest; } /** * Gets the thrown exception. */ public Throwable thrownException() { return fThrownException; } /** * Returns a short description of the failure. */ @Override public String toString() { StringBuffer buffer = new StringBuffer(); buffer.append(fFailedTest + ": " + fThrownException.getMessage()); return buffer.toString(); } public String trace() { StringWriter stringWriter = new StringWriter(); PrintWriter writer = new PrintWriter(stringWriter); thrownException().printStackTrace(writer); StringBuffer buffer = stringWriter.getBuffer(); return buffer.toString(); } public String exceptionMessage() { return thrownException().getMessage(); } public boolean isFailure() { return thrownException() instanceof AssertionFailedError; } }