1 /* 2 * Copyright (C) 2016 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.testing.google; 18 19 import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER; 20 21 import com.google.common.annotations.GwtCompatible; 22 import com.google.common.annotations.GwtIncompatible; 23 import com.google.common.collect.Multiset.Entry; 24 import com.google.common.collect.Multisets; 25 import com.google.common.collect.testing.Helpers; 26 import com.google.common.collect.testing.features.CollectionFeature; 27 import java.lang.reflect.Method; 28 import java.util.ArrayList; 29 import java.util.Arrays; 30 import java.util.Collections; 31 import java.util.List; 32 import org.junit.Ignore; 33 34 /** 35 * Tests for {@code Multiset#forEachEntry}. 36 * 37 * @author Louis Wasserman 38 */ 39 @GwtCompatible(emulated = true) 40 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 41 public class MultisetForEachEntryTester<E> extends AbstractMultisetTester<E> { testForEachEntry()42 public void testForEachEntry() { 43 List<Entry<E>> expected = new ArrayList<>(getMultiset().entrySet()); 44 List<Entry<E>> actual = new ArrayList<>(); 45 getMultiset() 46 .forEachEntry((element, count) -> actual.add(Multisets.immutableEntry(element, count))); 47 Helpers.assertEqualIgnoringOrder(expected, actual); 48 } 49 50 @CollectionFeature.Require(KNOWN_ORDER) testForEachEntryOrdered()51 public void testForEachEntryOrdered() { 52 List<Entry<E>> expected = new ArrayList<>(getMultiset().entrySet()); 53 List<Entry<E>> actual = new ArrayList<>(); 54 getMultiset() 55 .forEachEntry((element, count) -> actual.add(Multisets.immutableEntry(element, count))); 56 assertEquals(expected, actual); 57 } 58 testForEachEntryDuplicates()59 public void testForEachEntryDuplicates() { 60 initThreeCopies(); 61 List<Entry<E>> expected = Collections.singletonList(Multisets.immutableEntry(e0(), 3)); 62 List<Entry<E>> actual = new ArrayList<>(); 63 getMultiset() 64 .forEachEntry((element, count) -> actual.add(Multisets.immutableEntry(element, count))); 65 assertEquals(expected, actual); 66 } 67 68 /** 69 * Returns {@link Method} instances for the remove tests that assume multisets support duplicates 70 * so that the test of {@code Multisets.forSet()} can suppress them. 71 */ 72 @GwtIncompatible // reflection getForEachEntryDuplicateInitializingMethods()73 public static List<Method> getForEachEntryDuplicateInitializingMethods() { 74 return Arrays.asList( 75 Helpers.getMethod(MultisetForEachEntryTester.class, "testForEachEntryDuplicates")); 76 } 77 } 78