/**
* Copyright (c) 2002-2014 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.index.impl.lucene;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.junit.internal.matchers.TypeSafeMatcher;
public class IsEmpty extends TypeSafeMatcher<Iterable<?>>
{
private Iterable<?> iterable;
@Override
public boolean matchesSafely( Iterable<?> iterable )
{
this.iterable = iterable;
return !iterable.iterator().hasNext();
}
public void describeTo( Description description )
{
description.appendValueList("[", ",", "]", iterable);
}
public static Matcher<Iterable<?>> isEmpty() {
return new IsEmpty();
}
}