org.dmfs.jems.hamcrest.matchers.StackMatcher Maven / Gradle / Ivy
/*
* Copyright 2017 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.iterables.decorators.Mapped;
import org.dmfs.jems.iterable.elementary.Seq;
import org.dmfs.iterators.Function;
import org.dmfs.jems.iterable.elementary.StackIterable;
import org.dmfs.jems.optional.Optional;
import org.dmfs.jems.stack.Stack;
import org.hamcrest.FeatureMatcher;
import org.hamcrest.Matcher;
import static org.dmfs.jems.hamcrest.matchers.optional.AbsentMatcher.absent;
import static org.hamcrest.Matchers.is;
/**
* A {@link Matcher} which matches an entire {@link Stack}.
*
* @author Marten Gajda
*/
public final class StackMatcher extends FeatureMatcher, Iterable>
{
public static Matcher> emptyStack()
{
return new FeatureMatcher, Optional>>(absent(), "StackTop", "StackTop")
{
@Override
protected Optional> featureValueOf(Stack actual)
{
return actual.top();
}
};
}
@SafeVarargs
public static Matcher> stacked(E... elements)
{
return new StackMatcher<>(IterableMatcher.iteratesTo(
new Mapped<>(
new Seq<>(elements),
new Function>()
{
@Override
public Matcher apply(E argument)
{
return is(argument);
}
})));
}
@SafeVarargs
public static Matcher> stacked(Matcher... elements)
{
return new StackMatcher<>(IterableMatcher.iteratesTo(new Seq<>(elements)));
}
/**
* @param stackIterableMatcher
*/
public StackMatcher(Matcher> stackIterableMatcher)
{
super(stackIterableMatcher,
"Elements in Stack",
"Elements in Stack");
}
@Override
protected Iterable featureValueOf(Stack actualStack)
{
return new StackIterable<>(actualStack);
}
}