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Apache Lucene (module: test-framework)
/*
* 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.
*/
package org.apache.lucene.index;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.IOContext;
import org.apache.lucene.store.MockDirectoryWrapper;
import org.apache.lucene.store.MockDirectoryWrapper.Failure;
import org.apache.lucene.store.MockDirectoryWrapper.FakeIOException;
import org.apache.lucene.util.StringHelper;
import org.apache.lucene.util.TestUtil;
import org.apache.lucene.util.Version;
/**
* Abstract class to do basic tests for si format.
* NOTE: This test focuses on the si impl, nothing else.
* The [stretch] goal is for this test to be
* so thorough in testing a new si format that if this
* test passes, then all Lucene/Solr tests should also pass. Ie,
* if there is some bug in a given si Format that this
* test fails to catch then this test needs to be improved! */
public abstract class BaseSegmentInfoFormatTestCase extends BaseIndexFileFormatTestCase {
/** Test files map */
public void testFiles() throws Exception {
Directory dir = newDirectory();
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertEquals(info.files(), info2.files());
dir.close();
}
/** Tests SI writer adds itself to files... */
public void testAddsSelfToFiles() throws Exception {
Directory dir = newDirectory();
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
Set originalFiles = Collections.singleton("_123.a");
info.setFiles(originalFiles);
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
Set modifiedFiles = info.files();
assertTrue(modifiedFiles.containsAll(originalFiles));
assertTrue("did you forget to add yourself to files()", modifiedFiles.size() > originalFiles.size());
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertEquals(info.files(), info2.files());
// files set should be immutable
expectThrows(UnsupportedOperationException.class, () -> {
info2.files().add("bogus");
});
dir.close();
}
/** Test diagnostics map */
public void testDiagnostics() throws Exception {
Directory dir = newDirectory();
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
Map diagnostics = new HashMap<>();
diagnostics.put("key1", "value1");
diagnostics.put("key2", "value2");
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
diagnostics, id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertEquals(diagnostics, info2.getDiagnostics());
// diagnostics map should be immutable
expectThrows(UnsupportedOperationException.class, () -> {
info2.getDiagnostics().put("bogus", "bogus");
});
dir.close();
}
/** Test attributes map */
public void testAttributes() throws Exception {
Directory dir = newDirectory();
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
Map attributes = new HashMap<>();
attributes.put("key1", "value1");
attributes.put("key2", "value2");
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, attributes);
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertEquals(attributes, info2.getAttributes());
// attributes map should be immutable
expectThrows(UnsupportedOperationException.class, () -> {
info2.getAttributes().put("bogus", "bogus");
});
dir.close();
}
/** Test unique ID */
public void testUniqueID() throws Exception {
Codec codec = getCodec();
Directory dir = newDirectory();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertIDEquals(id, info2.getId());
dir.close();
}
/** Test versions */
public void testVersions() throws Exception {
Codec codec = getCodec();
for (Version v : getVersions()) {
Directory dir = newDirectory();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, v, "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
assertEquals(info2.getVersion(), v);
dir.close();
}
}
/**
* Test segment infos write that hits exception immediately on open.
* make sure we get our exception back, no file handle leaks, etc.
*/
public void testExceptionOnCreateOutput() throws Exception {
Failure fail = new Failure() {
@Override
public void eval(MockDirectoryWrapper dir) throws IOException {
for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
if (doFail && "createOutput".equals(e.getMethodName())) {
throw new FakeIOException();
}
}
}
};
MockDirectoryWrapper dir = newMockDirectory();
dir.failOn(fail);
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
fail.setDoFail();
expectThrows(FakeIOException.class, () -> {
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
});
fail.clearDoFail();
dir.close();
}
/**
* Test segment infos write that hits exception on close.
* make sure we get our exception back, no file handle leaks, etc.
*/
public void testExceptionOnCloseOutput() throws Exception {
Failure fail = new Failure() {
@Override
public void eval(MockDirectoryWrapper dir) throws IOException {
for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
if (doFail && "close".equals(e.getMethodName())) {
throw new FakeIOException();
}
}
}
};
MockDirectoryWrapper dir = newMockDirectory();
dir.failOn(fail);
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
fail.setDoFail();
expectThrows(FakeIOException.class, () -> {
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
});
fail.clearDoFail();
dir.close();
}
/**
* Test segment infos read that hits exception immediately on open.
* make sure we get our exception back, no file handle leaks, etc.
*/
public void testExceptionOnOpenInput() throws Exception {
Failure fail = new Failure() {
@Override
public void eval(MockDirectoryWrapper dir) throws IOException {
for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
if (doFail && "openInput".equals(e.getMethodName())) {
throw new FakeIOException();
}
}
}
};
MockDirectoryWrapper dir = newMockDirectory();
dir.failOn(fail);
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
fail.setDoFail();
expectThrows(FakeIOException.class, () -> {
codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
});
fail.clearDoFail();
dir.close();
}
/**
* Test segment infos read that hits exception on close
* make sure we get our exception back, no file handle leaks, etc.
*/
public void testExceptionOnCloseInput() throws Exception {
Failure fail = new Failure() {
@Override
public void eval(MockDirectoryWrapper dir) throws IOException {
for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
if (doFail && "close".equals(e.getMethodName())) {
throw new FakeIOException();
}
}
}
};
MockDirectoryWrapper dir = newMockDirectory();
dir.failOn(fail);
Codec codec = getCodec();
byte id[] = StringHelper.randomId();
SegmentInfo info = new SegmentInfo(dir, getVersions()[0], "_123", 1, false, codec,
Collections.emptyMap(), id, new HashMap<>());
info.setFiles(Collections.emptySet());
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
fail.setDoFail();
expectThrows(FakeIOException.class, () -> {
codec.segmentInfoFormat().read(dir, "_123", id, IOContext.DEFAULT);
});
fail.clearDoFail();
dir.close();
}
/**
* Sets some otherwise hard-to-test properties:
* random segment names, ID values, document count, etc and round-trips
*/
public void testRandom() throws Exception {
Codec codec = getCodec();
Version[] versions = getVersions();
for (int i = 0; i < 10; i++) {
Directory dir = newDirectory();
Version version = versions[random().nextInt(versions.length)];
String name = "_" + Integer.toString(random().nextInt(Integer.MAX_VALUE), Character.MAX_RADIX);
int docCount = TestUtil.nextInt(random(), 1, IndexWriter.MAX_DOCS);
boolean isCompoundFile = random().nextBoolean();
Set files = new HashSet<>();
int numFiles = random().nextInt(10);
for (int j = 0; j < numFiles; j++) {
String file = IndexFileNames.segmentFileName(name, "", Integer.toString(j));
files.add(file);
dir.createOutput(file, IOContext.DEFAULT).close();
}
Map diagnostics = new HashMap<>();
int numDiags = random().nextInt(10);
for (int j = 0; j < numDiags; j++) {
diagnostics.put(TestUtil.randomUnicodeString(random()),
TestUtil.randomUnicodeString(random()));
}
byte id[] = new byte[StringHelper.ID_LENGTH];
random().nextBytes(id);
Map attributes = new HashMap<>();
int numAttributes = random().nextInt(10);
for (int j = 0; j < numAttributes; j++) {
attributes.put(TestUtil.randomUnicodeString(random()),
TestUtil.randomUnicodeString(random()));
}
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, codec, diagnostics, id, attributes);
info.setFiles(files);
codec.segmentInfoFormat().write(dir, info, IOContext.DEFAULT);
SegmentInfo info2 = codec.segmentInfoFormat().read(dir, name, id, IOContext.DEFAULT);
assertEquals(info, info2);
dir.close();
}
}
protected final void assertEquals(SegmentInfo expected, SegmentInfo actual) {
assertSame(expected.dir, actual.dir);
assertEquals(expected.name, actual.name);
assertEquals(expected.files(), actual.files());
// we don't assert this, because SI format has nothing to do with it... set by SIS
// assertSame(expected.getCodec(), actual.getCodec());
assertEquals(expected.getDiagnostics(), actual.getDiagnostics());
assertEquals(expected.maxDoc(), actual.maxDoc());
assertIDEquals(expected.getId(), actual.getId());
assertEquals(expected.getUseCompoundFile(), actual.getUseCompoundFile());
assertEquals(expected.getVersion(), actual.getVersion());
assertEquals(expected.getAttributes(), actual.getAttributes());
}
/** Returns the versions this SI should test */
protected abstract Version[] getVersions();
/**
* assert that unique id is equal.
* @deprecated only exists to be overridden by old codecs that didnt support this
*/
@Deprecated
protected void assertIDEquals(byte expected[], byte actual[]) {
assertArrayEquals(expected, actual);
}
@Override
protected void addRandomFields(Document doc) {
doc.add(new StoredField("foobar", TestUtil.randomSimpleString(random())));
}
@Override
public void testRamBytesUsed() throws IOException {
assumeTrue("not applicable for this format", true);
}
}
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