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junit/framework/TestFailure.java
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;
  }
}