Java example source code file (ConstrainedSetMultimapTest.java)

This example Java source code file (ConstrainedSetMultimapTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

constrainedsetmultimaptest, constraint, entry, instance, mapconstraint, override, serializable, setmultimap, string, testcase, teststringsetmultimapgenerator

The ConstrainedSetMultimapTest.java Java example source code

/*
 * Copyright (C) 2007 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.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import com.google.common.collect.testing.google.SetMultimapTestSuiteBuilder;
import com.google.common.collect.testing.google.TestStringSetMultimapGenerator;

import junit.framework.Test;
import junit.framework.TestCase;

import java.io.Serializable;
import java.util.Map.Entry;

/**
 * Tests for {@link MapConstraints#constrainedSetMultimap} not accounted for in
 * {@link MapConstraintsTest}.
 *
 * @author Jared Levy
 */
public class ConstrainedSetMultimapTest extends TestCase {
  private enum Constraint implements Serializable, MapConstraint<String, String> {
    INSTANCE;

    @Override
    public void checkKeyValue(String key, String value) {
      checkArgument(!"test".equals(key));
      checkArgument(!"test".equals(value));
    }
  }

  public static Test suite() {
    return SetMultimapTestSuiteBuilder.using(
        new TestStringSetMultimapGenerator() {

          @Override
          protected SetMultimap<String, String> create(Entry[] entries) {
            SetMultimap<String, String> multimap = HashMultimap.create();
            for (Entry<String, String> entry : entries) {
              multimap.put(entry.getKey(), entry.getValue());
            }
            return MapConstraints.constrainedSetMultimap(multimap, Constraint.INSTANCE);
          }
        })
        .named("MapConstraints.constrainedSetMultimap")
        .withFeatures(
            MapFeature.ALLOWS_NULL_KEYS,
            MapFeature.ALLOWS_NULL_VALUES,
            MapFeature.ALLOWS_ANY_NULL_QUERIES,
            MapFeature.GENERAL_PURPOSE,
            CollectionSize.ANY,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.SUPPORTS_ITERATOR_REMOVE)
        .createTestSuite();
  }
}