src/Lucene.Net.Tests/Search/MockFilter.cs

namespace Lucene.Net.Search
{
    /*
     * Licensed to the Apache Software Foundation (ASF) under one or more
     * contributor license agreements.  See the NOTICE file distributed with
     * this work for additional information regarding copyright ownership.
     * The ASF licenses this file to You 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.
     */

    using AtomicReaderContext = Lucene.Net.Index.AtomicReaderContext;
    using IBits = Lucene.Net.Util.IBits;
    using FixedBitSet = Lucene.Net.Util.FixedBitSet;

    public class MockFilter : Filter
    {
        private bool wasCalled;

        public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs)
        {
            wasCalled = true;
            return new FixedBitSet(context.Reader.MaxDoc);
        }

        public virtual void Clear()
        {
            wasCalled = false;
        }

        public virtual bool WasCalled()
        {
            return wasCalled;
        }
    }
}