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package org.junit.runner.notification;
import java.io.Serializable;
import org.junit.internal.Throwables;
import org.junit.runner.Description;
/**
* A <code>Failure</code> holds a description of the failed test and the
* exception that was thrown while running it. In most cases the {@link org.junit.runner.Description}
* will be of a single test. However, if problems are encountered while constructing the
* test (for example, if a {@link org.junit.BeforeClass} method is not static), it may describe
* something other than a single test.
*
* @since 4.0
*/
public class Failure implements Serializable {
private static final long serialVersionUID = 1L;
/*
* We have to use the f prefix until the next major release to ensure
* serialization compatibility.
* See https://github.com/junit-team/junit4/issues/976
*/
private final Description fDescription;
private final Throwable fThrownException;
/**
* Constructs a <code>Failure</code> with the given description and exception.
*
* @param description a {@link org.junit.runner.Description} of the test that failed
* @param thrownException the exception that was thrown while running the test
*/
public Failure(Description description, Throwable thrownException) {
this.fThrownException = thrownException;
this.fDescription = description;
}
/**
* @return a user-understandable label for the test
*/
public String getTestHeader() {
return fDescription.getDisplayName();
}
/**
* @return the raw description of the context of the failure.
*/
public Description getDescription() {
return fDescription;
}
/**
* @return the exception thrown
*/
public Throwable getException() {
return fThrownException;
}
@Override
public String toString() {
return getTestHeader() + ": " + fThrownException.getMessage();
}
/**
* Gets the printed form of the exception and its stack trace.
*/
public String getTrace() {
return Throwables.getStacktrace(getException());
}
/**
* Gets a the printed form of the exception, with a trimmed version of the stack trace.
* This method will attempt to filter out frames of the stack trace that are below
* the test method call.
*/
public String getTrimmedTrace() {
return Throwables.getTrimmedStackTrace(getException());
}
/**
* Convenience method
*
* @return the message of the thrown exception
*/
public String getMessage() {
return getException().getMessage();
}
}
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