org.dmfs.jems.hamcrest.matchers.matcher.MismatchMatcher Maven / Gradle / Ivy
/*
* Copyright 2018 dmfs GmbH
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dmfs.jems.hamcrest.matchers.matcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.StringDescription;
import org.hamcrest.TypeSafeDiagnosingMatcher;
/**
* A {@link Matcher} to check if another {@link Matcher} mismatches a specific value with a specific description.
*
* @author Marten Gajda
*/
public final class MismatchMatcher> extends TypeSafeDiagnosingMatcher
{
private final V mMismatchItem;
private final Matcher mDescriptionMatcher;
public MismatchMatcher(V mismatchItem, Matcher descriptionMatcher)
{
mMismatchItem = mismatchItem;
mDescriptionMatcher = descriptionMatcher;
}
@Override
protected boolean matchesSafely(T item, Description mismatchDescription)
{
if (item.matches(mMismatchItem))
{
mismatchDescription.appendText(String.format("did match \"%s\"", mMismatchItem.toString()));
return false;
}
Description description = new StringDescription();
item.describeMismatch(mMismatchItem, description);
if (!mDescriptionMatcher.matches(description.toString()))
{
mismatchDescription.appendText("description ");
mDescriptionMatcher.describeMismatch(description.toString(), mismatchDescription);
return false;
}
return true;
}
@Override
public void describeTo(Description description)
{
description.appendText("mismatches with description ");
mDescriptionMatcher.describeTo(description);
}
}