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* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.search.suggest.completion;
import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
import org.elasticsearch.common.unit.Fuzziness;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.elasticsearch.test.EqualsHashCodeTestUtils.checkEqualsAndHashCode;
public class FuzzyOptionsTests extends ESTestCase {
private static final int NUMBER_OF_RUNS = 20;
public static FuzzyOptions randomFuzzyOptions() {
final FuzzyOptions.Builder builder = FuzzyOptions.builder();
if (randomBoolean()) {
maybeSet(builder::setFuzziness, randomFrom(Fuzziness.ZERO, Fuzziness.ONE, Fuzziness.TWO));
} else {
maybeSet(builder::setFuzziness, randomFrom(0, 1, 2));
}
maybeSet(builder::setFuzzyMinLength, randomIntBetween(0, 10));
maybeSet(builder::setFuzzyPrefixLength, randomIntBetween(0, 10));
maybeSet(builder::setMaxDeterminizedStates, randomIntBetween(1, 1000));
maybeSet(builder::setTranspositions, randomBoolean());
maybeSet(builder::setUnicodeAware, randomBoolean());
return builder.build();
}
protected FuzzyOptions createMutation(FuzzyOptions original) throws IOException {
final FuzzyOptions.Builder builder = FuzzyOptions.builder();
builder.setFuzziness(original.getEditDistance()).setFuzzyPrefixLength(original.getFuzzyPrefixLength())
.setFuzzyMinLength(original.getFuzzyMinLength()).setMaxDeterminizedStates(original.getMaxDeterminizedStates())
.setTranspositions(original.isTranspositions()).setUnicodeAware(original.isUnicodeAware());
List<Runnable> mutators = new ArrayList<>();
mutators.add(() -> builder.setFuzziness(randomValueOtherThan(original.getEditDistance(), () -> randomFrom(0, 1, 2))));
mutators.add(
() -> builder.setFuzzyPrefixLength(randomValueOtherThan(original.getFuzzyPrefixLength(), () -> randomIntBetween(1, 3))));
mutators.add(() -> builder.setFuzzyMinLength(randomValueOtherThan(original.getFuzzyMinLength(), () -> randomIntBetween(1, 3))));
mutators.add(() -> builder
.setMaxDeterminizedStates(randomValueOtherThan(original.getMaxDeterminizedStates(), () -> randomIntBetween(1, 10))));
mutators.add(() -> builder.setTranspositions(!original.isTranspositions()));
mutators.add(() -> builder.setUnicodeAware(!original.isUnicodeAware()));
randomFrom(mutators).run();
return builder.build();
}
/**
* Test serialization and deserialization
*/
public void testSerialization() throws IOException {
for (int i = 0; i < NUMBER_OF_RUNS; i++) {
FuzzyOptions testModel = randomFuzzyOptions();
FuzzyOptions deserializedModel = copyWriteable(testModel, new NamedWriteableRegistry(Collections.emptyList()),
FuzzyOptions::new);
assertEquals(testModel, deserializedModel);
assertEquals(testModel.hashCode(), deserializedModel.hashCode());
assertNotSame(testModel, deserializedModel);
}
}
public void testEqualsAndHashCode() throws IOException {
for (int i = 0; i < NUMBER_OF_RUNS; i++) {
checkEqualsAndHashCode(randomFuzzyOptions(),
original -> copyWriteable(original, new NamedWriteableRegistry(Collections.emptyList()), FuzzyOptions::new),
this::createMutation);
}
}
public void testIllegalArguments() {
final FuzzyOptions.Builder builder = FuzzyOptions.builder();
try {
builder.setFuzziness(-randomIntBetween(1, Integer.MAX_VALUE));
fail("fuzziness must be > 0");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "fuzziness must be between 0 and 2");
}
try {
builder.setFuzziness(randomIntBetween(3, Integer.MAX_VALUE));
fail("fuzziness must be < 2");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "fuzziness must be between 0 and 2");
}
try {
builder.setFuzziness(null);
fail("fuzziness must not be null");
} catch (NullPointerException e) {
assertEquals(e.getMessage(), "fuzziness must not be null");
}
try {
builder.setFuzzyMinLength(-randomIntBetween(1, Integer.MAX_VALUE));
fail("fuzzyMinLength must be >= 0");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "fuzzyMinLength must not be negative");
}
try {
builder.setFuzzyPrefixLength(-randomIntBetween(1, Integer.MAX_VALUE));
fail("fuzzyPrefixLength must be >= 0");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "fuzzyPrefixLength must not be negative");
}
try {
builder.setMaxDeterminizedStates(-randomIntBetween(1, Integer.MAX_VALUE));
fail("max determinized state must be >= 0");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "maxDeterminizedStates must not be negative");
}
}
}