1 /* 2 * Copyright (C) 2008 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.common.base.Function; 21 import com.google.common.base.Functions; 22 import java.util.Map; 23 24 /** 25 * Tests for {@link Maps#transformValues(Map, Function)}. 26 * 27 * @author Isaac Shum 28 */ 29 @GwtCompatible 30 @ElementTypesAreNonnullByDefault 31 public class MapsTransformValuesTest extends AbstractMapsTransformValuesTest { 32 @Override makeEmptyMap()33 protected Map<String, String> makeEmptyMap() { 34 return Maps.transformValues(Maps.<String, String>newHashMap(), Functions.<String>identity()); 35 } 36 37 @Override makePopulatedMap()38 protected Map<String, String> makePopulatedMap() { 39 Map<String, Integer> underlying = Maps.newHashMap(); 40 underlying.put("a", 1); 41 underlying.put("b", 2); 42 underlying.put("c", 3); 43 return Maps.transformValues(underlying, Functions.toStringFunction()); 44 } 45 } 46