TestHistoryDifferenceCollectionMatcher.java 文件源码

protected void describeMismatchSafely(String prefix, MapDifference<TestHistoryDifferenceKey, Collection<TestHistoryDifferenceDescription>> difference, Description mismatchDescription) {
    appendIfNonEmpty(mismatchDescription, prefix, "missing: ", difference.entriesOnlyOnLeft());
    appendIfNonEmpty(mismatchDescription, prefix, "unexpected: ", difference.entriesOnlyOnRight());
    for (Entry<TestHistoryDifferenceKey, ValueDifference<Collection<TestHistoryDifferenceDescription>>> entryDiffering : difference.entriesDiffering().entrySet()) {
        mismatchDescription.appendText(prefix).appendText("differing from expected: ")
                .appendValue(entryDiffering.getKey());
        ValueDifference<Collection<TestHistoryDifferenceDescription>> valueDifference = entryDiffering.getValue();
        Collection<TestHistoryDifferenceDescription> expectedCollection = valueDifference.leftValue();
        Collection<TestHistoryDifferenceDescription> actualCollection = valueDifference.rightValue();
        String newPrefix = prefix + "\t\t";
        if (expectedCollection.size() == 1 && actualCollection.size() == 1) {
            TestHistoryDifferenceDescription expected = Iterables.getOnlyElement(expectedCollection);
            TestHistoryDifferenceDescription actual = Iterables.getOnlyElement(actualCollection);
            describeMismatchSafely(newPrefix, expected, actual, mismatchDescription);
        } else {
            mismatchDescription.appendText(newPrefix).appendText("expected: ").appendValue(valueDifference.leftValue());
            mismatchDescription.appendText(newPrefix).appendText("actual: ").appendValue(valueDifference.rightValue());
        }
    }
}