org.dmfs.jems.hamcrest.matchers.IntactFragileMatcher 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;
import org.dmfs.jems.fragile.Fragile;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeDiagnosingMatcher;
/**
* A {@link Matcher} to match {@link Fragile}s which are supposed to be non-broken.
*
* @author Marten Gajda
*/
public final class IntactFragileMatcher extends TypeSafeDiagnosingMatcher>
{
private final Matcher mDelegate;
public static Matcher> isIntact(Matcher valueMatcher)
{
return new IntactFragileMatcher<>(valueMatcher);
}
public static Matcher> isIntact(T expectedValue)
{
return new IntactFragileMatcher<>(CoreMatchers.equalTo(expectedValue));
}
public IntactFragileMatcher(Matcher valueMatcher)
{
mDelegate = valueMatcher;
}
@Override
protected boolean matchesSafely(Fragile item, Description mismatchDescription)
{
try
{
boolean result = mDelegate.matches(item.value());
if (!result)
{
mismatchDescription.appendText("intact Fragile ");
mDelegate.describeMismatch(item.value(), mismatchDescription);
}
return result;
}
catch (Throwable throwable)
{
mismatchDescription.appendText(String.format("broken throwing %s", throwable.getClass().getName()));
return false;
}
}
@Override
public void describeTo(Description description)
{
description.appendText("intact Fragile ");
mDelegate.describeTo(description);
}
}