/**
* Copyright 2006 The Apache Software Foundation
*
* 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.apache.lucene.store.instantiated;
import junit.framework.TestCase;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.index.TermEnum;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocCollector;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import java.util.Arrays;
import java.io.IOException;
public class TestEmptyIndex extends TestCase {
public void testSearch() throws Exception {
InstantiatedIndex ii = new InstantiatedIndex();
IndexReader r = new InstantiatedIndexReader(ii);
IndexSearcher s = new IndexSearcher(r);
TopDocCollector c = new TopDocCollector(1);
s.search(new TermQuery(new Term("foo", "bar")), c);
assertEquals(0, c.getTotalHits());
s.close();
r.close();
ii.close();
}
public void testNorms() throws Exception {
InstantiatedIndex ii = new InstantiatedIndex();
IndexReader r = new InstantiatedIndexReader(ii);
testNorms(r);
r.close();
ii.close();
// make sure a Directory acts the same
Directory d = new RAMDirectory();
new IndexWriter(d, null, true, IndexWriter.MaxFieldLength.UNLIMITED).close();
r = IndexReader.open(d);
testNorms(r);
r.close();
d.close();
}
private void testNorms(IndexReader r) throws IOException {
byte[] norms;
norms = r.norms("foo");
if (!r.getDisableFakeNorms()) {
assertNotNull(norms);
assertEquals(0, norms.length);
norms = new byte[10];
Arrays.fill(norms, (byte)10);
r.norms("foo", norms, 10);
for (byte b : norms) {
assertEquals((byte)10, b);
}
}
}
public void testTermEnum() throws Exception {
InstantiatedIndex ii = new InstantiatedIndex();
IndexReader r = new InstantiatedIndexReader(ii);
termEnumTest(r);
r.close();
ii.close();
// make sure a Directory acts the same
Directory d = new RAMDirectory();
new IndexWriter(d, null, true, IndexWriter.MaxFieldLength.UNLIMITED).close();
r = IndexReader.open(d);
termEnumTest(r);
r.close();
d.close();
}
public void termEnumTest(IndexReader r) throws Exception {
TermEnum terms = r.terms();
assertNull(terms.term());
assertFalse(terms.next());
assertFalse(terms.skipTo(new Term("foo", "bar")));
}
}