Package org.assertj.core.internal

Class Failures

java.lang.Object
org.assertj.core.internal.Failures
public class Failures extends Object
Failure actions.
Author:
Yvonne Wang, Alex Ruiz

  • Method Details

    • instance

      public static Failures instance()
      Returns the singleton instance of this class.
      Returns:
      the singleton instance of this class.

    • setRemoveAssertJRelatedElementsFromStackTrace

      public void setRemoveAssertJRelatedElementsFromStackTrace(boolean removeAssertJRelatedElementsFromStackTrace)
      Sets whether we remove elements related to AssertJ from assertion error stack trace.
      Parameters:
      removeAssertJRelatedElementsFromStackTrace - flag

    • isRemoveAssertJRelatedElementsFromStackTrace

      public boolean isRemoveAssertJRelatedElementsFromStackTrace()
      Returns whether or not we remove elements related to AssertJ from assertion error stack trace.
      Returns:
      whether or not we remove elements related to AssertJ from assertion error stack trace.

    • failure

      public AssertionError failure(AssertionInfo info, AssertionErrorFactory factory)
      Creates a AssertionError following this pattern:
      1. creates a AssertionError using AssertionInfo.overridingErrorMessage() as the error message if such value is not null, or
      2. uses the given AssertionErrorFactory to create an AssertionError, prepending the value of AssertionInfo.description() to the error message
      Parameters:
      info - contains information about the failed assertion.
      factory - knows how to create AssertionErrors.
      Returns:
      the created AssertionError.

    • failure

      public AssertionError failure(AssertionInfo info, ErrorMessageFactory messageFactory)
      Creates a AssertionError following this pattern:
      1. creates a AssertionError using AssertionInfo.overridingErrorMessage() as the error message if such value is not null, or
      2. uses the given ErrorMessageFactory to create the detail message of the AssertionError, prepending the value of AssertionInfo.description() to the error message
      Parameters:
      info - contains information about the failed assertion.
      messageFactory - knows how to create detail messages for AssertionErrors.
      Returns:
      the created AssertionError.

    • failure

      public AssertionError failure(AssertionInfo info, ErrorMessageFactory messageFactory, Object actual, Object expected)

    • assertionErrorMessage

      protected String assertionErrorMessage(AssertionInfo info, ErrorMessageFactory messageFactory)

    • failureIfErrorMessageIsOverridden

      public AssertionError failureIfErrorMessageIsOverridden(AssertionInfo info)

    • failure

      public AssertionError failure(String message)
      Creates a AssertionError using the given String as message.

      It filters the AssertionError stack trace by default, to have full stack trace use setRemoveAssertJRelatedElementsFromStackTrace(boolean).

      Parameters:
      message - the message of the AssertionError to create.
      Returns:
      the created AssertionError.

    • expectedThrowableNotThrown

      public AssertionError expectedThrowableNotThrown(Class<? extends Throwable> throwableClass)
      Creates a AssertionError for a Throwable class that was expected to be thrown.
      Parameters:
      throwableClass - the Throwable class that was expected to be thrown.
      Returns:
      the created AssertionError.
      Since:
      2.6.0 / 3.6.0

    • printThreadDumpIfNeeded

      public void printThreadDumpIfNeeded()

    • removeAssertJRelatedElementsFromStackTraceIfNeeded

      public void removeAssertJRelatedElementsFromStackTraceIfNeeded(AssertionError assertionError)
      If is removeAssertJRelatedElementsFromStackTrace is true, it filters the stack trace of the given AssertionError by removing stack trace elements related to AssertJ in order to get a more readable stack trace.

      See example below : 

       --------------- stack trace not filtered -----------------
  org.junit.ComparisonFailure: expected:<'[Ronaldo]'> but was:<'[Messi]'>
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:501)
  at org.assertj.core.error.ConstructorInvoker.newInstance(ConstructorInvoker.java:34)
  at org.assertj.core.error.ShouldBeEqual.newComparisonFailure(ShouldBeEqual.java:111)
  at org.assertj.core.error.ShouldBeEqual.comparisonFailure(ShouldBeEqual.java:103)
  at org.assertj.core.error.ShouldBeEqual.newAssertionError(ShouldBeEqual.java:81)
  at org.assertj.core.internal.Failures.failure(Failures.java:76)
  at org.assertj.core.internal.Objects.assertEqual(Objects.java:116)
  at org.assertj.core.api.AbstractAssert.isEqualTo(AbstractAssert.java:74)
  at examples.StackTraceFilterExample.main(StackTraceFilterExample.java:13)

  --------------- stack trace filtered -----------------
  org.junit.ComparisonFailure: expected:<'[Ronaldo]'> but was:<'[Messi]'>
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
  at examples.StackTraceFilterExample.main(StackTraceFilterExample.java:20)
      Method is public because we need to call it from ShouldBeEqual.newAssertionError(Description, org.assertj.core.presentation.Representation) that is building a junit ComparisonFailure by reflection.
      Parameters:
      assertionError - the AssertionError to filter stack trace if option is set.

    • enablePrintThreadDump

      public void enablePrintThreadDump()
      Set the flag indicating that in case of a failure a threaddump is printed out.

    • threadDumpDescription

      public static String threadDumpDescription()