How to use buildAssertionErrorWithLineNumbersButNoActualOrExpectedValues method of org.assertj.core.util.Throwables class

Best Assertj code snippet using org.assertj.core.util.Throwables.buildAssertionErrorWithLineNumbersButNoActualOrExpectedValues

Source:Throwables.java

...211  private static <T extends Throwable> T createNewInstanceWithLineNumberInErrorMessage(T error,212                                                                                       StackTraceElement testStackTraceElement) throws ReflectiveOperationException {213    T errorWithLineNumber = isOpentest4jAssertionFailedError(error)214        ? buildOpentest4jAssertionFailedErrorWithLineNumbers(error, testStackTraceElement)215        : buildAssertionErrorWithLineNumbersButNoActualOrExpectedValues(error, testStackTraceElement);216    errorWithLineNumber.setStackTrace(error.getStackTrace());217    Stream.of(error.getSuppressed()).forEach(errorWithLineNumber::addSuppressed);218    return errorWithLineNumber;219  }220  private static <T extends Throwable> boolean isOpentest4jAssertionFailedError(T error) {221    return isInstanceOf(error, "org.opentest4j.AssertionFailedError");222  }223  private static boolean isInstanceOf(Object object, String className) {224    try {225      Class<?> type = Class.forName(className);226      return type.isInstance(object);227    } catch (ClassNotFoundException e) {228      return false;229    }230  }231  private static <T extends Throwable> T buildAssertionErrorWithLineNumbersButNoActualOrExpectedValues(T error,232                                                                                                       StackTraceElement testStackTraceElement) throws ReflectiveOperationException {233    @SuppressWarnings("unchecked")234    Constructor<? extends T> constructor = (Constructor<? extends T>) error.getClass().getConstructor(String.class,235                                                                                                      Throwable.class);236    return constructor.newInstance(buildErrorMessageWithLineNumber(error.getMessage(), testStackTraceElement), error.getCause());237  }238  private static <T extends Throwable> T buildOpentest4jAssertionFailedErrorWithLineNumbers(T error,239                                                                                            StackTraceElement testStackTraceElement) throws ReflectiveOperationException {240    // AssertionFailedError has actual and expected fields of type ValueWrapper241    Object actualWrapper = byName("actual").apply(error);242    Object expectedWrapper = byName("expected").apply(error);243    if (actualWrapper != null && expectedWrapper != null) {244      // try to call AssertionFailedError(String message, Object expected, Object actual, Throwable cause)245      try {246        Object actual = byName("value").apply(actualWrapper);247        Object expected = byName("value").apply(expectedWrapper);248        @SuppressWarnings("unchecked")249        Constructor<? extends T> constructor = (Constructor<? extends T>) error.getClass().getConstructor(String.class,250                                                                                                          Object.class,251                                                                                                          Object.class,252                                                                                                          Throwable.class);253        return constructor.newInstance(buildErrorMessageWithLineNumber(error.getMessage(), testStackTraceElement),254                                       expected,255                                       actual,256                                       error.getCause());257      } catch (IntrospectionError e) {258        // fallback to AssertionFailedError(String message, Throwable cause) constructor259      }260    }261    return buildAssertionErrorWithLineNumbersButNoActualOrExpectedValues(error, testStackTraceElement);262  }263  private static String buildErrorMessageWithLineNumber(String originalErrorMessage, StackTraceElement testStackTraceElement) {264    String testClassName = simpleClassNameOf(testStackTraceElement);265    String testName = testStackTraceElement.getMethodName();266    int lineNumber = testStackTraceElement.getLineNumber();267    String atLineNumber = format("at %s.%s(%s.java:%s)", testClassName, testName, testClassName, lineNumber);268    if (originalErrorMessage.contains(atLineNumber)) {269      return originalErrorMessage;270    }271    return format(originalErrorMessage.endsWith(format("%n")) ? "%s%s" : "%s%n%s", originalErrorMessage, atLineNumber);272  }273  private static String simpleClassNameOf(StackTraceElement testStackTraceElement) {274    String className = testStackTraceElement.getClassName();275    return className.substring(className.lastIndexOf('.') + 1);...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.