@Override
        public ExecutionFailure assertHasCause(String description) {
            assertThatCause(startsWith(description));
            return this;
        }

        @Override
        public ExecutionFailure assertThatCause(Matcher<? super String> matcher) {
            outputFailure.assertThatCause(matcher);
            Set<String> seen = new LinkedHashSet<>();

        }
    }

    protected void failureHasCause(String cause) {
        failure.assertHasCause(cause)
    }

    protected void failureHasCause(Pattern pattern) {
        failure.assertThatCause(matchesRegexp(pattern))
    }

    protected void failureDescriptionStartsWith(String description) {
        failure.assertThatDescription(containsNormalizedString(description))
    }