/*
* Copyright (C) 2008 The Guava Authors
*
* 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 com.google.common.collect;
import static com.google.common.base.Preconditions.checkArgument;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.MapConstraintsTest.TestKeyException;
import com.google.common.collect.MapConstraintsTest.TestValueException;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import com.google.common.collect.testing.google.BiMapTestSuiteBuilder;
import com.google.common.collect.testing.google.TestStringBiMapGenerator;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import java.util.Map.Entry;
/**
* Tests for {@link MapConstraints#constrainedBiMap}.
*
* @author Jared Levy
* @author Louis Wasserman
*/
@GwtCompatible
public class ConstrainedBiMapTest extends TestCase {
private static final String TEST_KEY = "42";
private static final String TEST_VALUE = "test";
private static final MapConstraint<String, String> TEST_CONSTRAINT = new TestConstraint();
public static Test suite() {
TestSuite suite = new TestSuite();
suite.addTest(BiMapTestSuiteBuilder
.using(new ConstrainedBiMapGenerator())
.named("Maps.constrainedBiMap[HashBiMap]")
.withFeatures(
CollectionSize.ANY,
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.REJECTS_DUPLICATES_AT_CREATION)
.createTestSuite());
suite.addTestSuite(ConstrainedBiMapTest.class);
return suite;
}
public void testPutWithForbiddenKeyForbiddenValue() {
BiMap<String, String> map = MapConstraints.constrainedBiMap(
HashBiMap.<String, String> create(),
TEST_CONSTRAINT);
try {
map.put(TEST_KEY, TEST_VALUE);
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException expected) {
// success
}
}
public void testPutWithForbiddenKeyAllowedValue() {
BiMap<String, String> map = MapConstraints.constrainedBiMap(
HashBiMap.<String, String> create(),
TEST_CONSTRAINT);
try {
map.put(TEST_KEY, "allowed");
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException expected) {
// success
}
}
public void testPutWithAllowedKeyForbiddenValue() {
BiMap<String, String> map = MapConstraints.constrainedBiMap(
HashBiMap.<String, String> create(),
TEST_CONSTRAINT);
try {
map.put("allowed", TEST_VALUE);
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException expected) {
// success
}
}
public static final class ConstrainedBiMapGenerator extends TestStringBiMapGenerator {
@Override
protected BiMap<String, String> create(Entry<String, String>[] entries) {
BiMap<String, String> bimap = MapConstraints.constrainedBiMap(
HashBiMap.<String, String> create(),
TEST_CONSTRAINT);
for (Entry<String, String> entry : entries) {
checkArgument(!bimap.containsKey(entry.getKey()));
bimap.put(entry.getKey(), entry.getValue());
}
return bimap;
}
}
private static final class TestConstraint implements MapConstraint<String, String> {
@Override
public void checkKeyValue(String key, String value) {
if (TEST_KEY.equals(key)) {
throw new TestKeyException();
}
if (TEST_VALUE.equals(value)) {
throw new TestValueException();
}
}
private static final long serialVersionUID = 0;
}
}