public AssertionError failureIfErrorMessageIsOverridden(AssertionInfo info) {
String overridingErrorMessage = info.overridingErrorMessage();
return isNullOrEmpty(overridingErrorMessage)
? null
: failure(
MessageFormatter.instance()
.format(info.description(), info.representation(), overridingErrorMessage));
}
/**
* Creates a <code>{@link AssertionError}</code> following this pattern:
*
* <ol>
* <li>creates a <code>{@link AssertionError}</code> using <code>
* {@link AssertionInfo#overridingErrorMessage()}</code> as the error message if such value
* is not {@code null}, or
* <li>uses the given <code>{@link ErrorMessageFactory}</code> to create the detail message of
* the <code>{@link AssertionError}</code>, prepending the value of <code>
* {@link AssertionInfo#description()}</code> to the error message
* </ol>
*
* @param info contains information about the failed assertion.
* @param message knows how to create detail messages for {@code AssertionError}s.
* @return the created <code>{@link AssertionError}</code>.
*/
public AssertionError failure(AssertionInfo info, ErrorMessageFactory message) {
AssertionError error = failureIfErrorMessageIsOverridden(info);
if (error != null) return error;
AssertionError assertionError =
new AssertionError(message.create(info.description(), info.representation()));
removeAssertJRelatedElementsFromStackTraceIfNeeded(assertionError);
printThreadDumpIfNeeded();
return assertionError;
}
@Test
public void should_fail_if_doubles_are_not_equal() {
AssertionInfo info = someInfo();
try {
doubles.assertEqual(info, 6d, 8d);
} catch (AssertionError e) {
verify(failures).failure(info, shouldBeEqual(6d, 8d, info.representation()));
return;
}
failBecauseExpectedAssertionErrorWasNotThrown();
}
@Test
public void should_fail_if_actual_size_is_not_equal_to_other_size() {
AssertionInfo info = someInfo();
String[] actual = array("Yoda");
List<String> other = newArrayList("Solo", "Leia");
try {
arrays.assertHasSameSizeAs(info, actual, other);
} catch (AssertionError e) {
assertThat(e)
.hasMessage(
shouldHaveSameSizeAs(actual, actual.length, other.size())
.create(null, info.representation()));
return;
}
failBecauseExpectedAssertionErrorWasNotThrown();
}
/**
* Creates a <code>{@link AssertionError}</code> following this pattern:
*
* <ol>
* <li>creates a <code>{@link AssertionError}</code> using <code>
* {@link AssertionInfo#overridingErrorMessage()}</code> as the error message if such value
* is not {@code null}, or
* <li>uses the given <code>{@link AssertionErrorFactory}</code> to create an <code>
* {@link AssertionError}</code>, prepending the value of <code>
* {@link AssertionInfo#description()}</code> to the error message
* </ol>
*
* @param info contains information about the failed assertion.
* @param factory knows how to create {@code AssertionError}s.
* @return the created <code>{@link AssertionError}</code>.
*/
public AssertionError failure(AssertionInfo info, AssertionErrorFactory factory) {
AssertionError error = failureIfErrorMessageIsOverridden(info);
if (error != null) return error;
printThreadDumpIfNeeded();
return factory.newAssertionError(info.description(), info.representation());
}