/*
 * 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,
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 * See the License for the specific language governing permissions and
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package org.apache.lucene.queries;

import java.io.IOException;

import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.MultiReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.MatchNoDocsQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.QueryUtils;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.util.LuceneTestCase;

public class BoostingQueryTest extends LuceneTestCase {
  // TODO: this suite desperately needs more tests!
  // ... like ones that actually run the query
  
  public void testBoostingQueryEquals() {
    TermQuery q1 = new TermQuery(new Term("subject:", "java"));
    TermQuery q2 = new TermQuery(new Term("subject:", "java"));
    assertEquals("Two TermQueries with same attributes should be equal", q1, q2);
    BoostingQuery bq1 = new BoostingQuery(q1, q2, 0.1f);
    QueryUtils.check(bq1);
    BoostingQuery bq2 = new BoostingQuery(q1, q2, 0.1f);
    assertEquals("BoostingQuery with same attributes is not equal", bq1, bq2);
  }

  public void testRewrite() throws IOException {
    IndexReader reader = new MultiReader();
    BoostingQuery q = new BoostingQuery(new BooleanQuery.Builder().build(), new MatchAllDocsQuery(), 3);
    Query rewritten = new IndexSearcher(reader).rewrite(q);
    Query expectedRewritten = new BoostingQuery(new MatchNoDocsQuery(), new MatchAllDocsQuery(), 3);
    assertEquals(expectedRewritten, rewritten);
    assertSame(rewritten, rewritten.rewrite(reader));
  }

}