| /* |
| * 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.truth.Truth.assertThat; |
| import static java.util.Arrays.asList; |
| |
| import com.google.common.annotations.GwtCompatible; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.ConcurrentModificationException; |
| import java.util.List; |
| import java.util.RandomAccess; |
| |
| /** |
| * Unit tests for {@code ArrayListMultimap}. |
| * |
| * @author Jared Levy |
| */ |
| @GwtCompatible(emulated = true) |
| public class ArrayListMultimapTest extends TestCase { |
| |
| protected ListMultimap<String, Integer> create() { |
| return ArrayListMultimap.create(); |
| } |
| |
| /** |
| * Confirm that get() returns a List implementing RandomAccess. |
| */ |
| public void testGetRandomAccess() { |
| Multimap<String, Integer> multimap = create(); |
| multimap.put("foo", 1); |
| multimap.put("foo", 3); |
| assertTrue(multimap.get("foo") instanceof RandomAccess); |
| assertTrue(multimap.get("bar") instanceof RandomAccess); |
| } |
| |
| /** |
| * Confirm that removeAll() returns a List implementing RandomAccess. |
| */ |
| public void testRemoveAllRandomAccess() { |
| Multimap<String, Integer> multimap = create(); |
| multimap.put("foo", 1); |
| multimap.put("foo", 3); |
| assertTrue(multimap.removeAll("foo") instanceof RandomAccess); |
| assertTrue(multimap.removeAll("bar") instanceof RandomAccess); |
| } |
| |
| /** |
| * Confirm that replaceValues() returns a List implementing RandomAccess. |
| */ |
| public void testReplaceValuesRandomAccess() { |
| Multimap<String, Integer> multimap = create(); |
| multimap.put("foo", 1); |
| multimap.put("foo", 3); |
| assertTrue(multimap.replaceValues("foo", asList(2, 4)) |
| instanceof RandomAccess); |
| assertTrue(multimap.replaceValues("bar", asList(2, 4)) |
| instanceof RandomAccess); |
| } |
| |
| /** |
| * Test throwing ConcurrentModificationException when a sublist's ancestor's |
| * delegate changes. |
| */ |
| public void testSublistConcurrentModificationException() { |
| ListMultimap<String, Integer> multimap = create(); |
| multimap.putAll("foo", asList(1, 2, 3, 4, 5)); |
| List<Integer> list = multimap.get("foo"); |
| assertThat(multimap.get("foo")).containsExactly(1, 2, 3, 4, 5).inOrder(); |
| List<Integer> sublist = list.subList(0, 5); |
| assertThat(sublist).containsExactly(1, 2, 3, 4, 5).inOrder(); |
| |
| sublist.clear(); |
| assertTrue(sublist.isEmpty()); |
| multimap.put("foo", 6); |
| |
| try { |
| sublist.isEmpty(); |
| fail("Expected ConcurrentModificationException"); |
| } catch (ConcurrentModificationException expected) {} |
| } |
| |
| public void testCreateFromMultimap() { |
| Multimap<String, Integer> multimap = create(); |
| multimap.put("foo", 1); |
| multimap.put("foo", 3); |
| multimap.put("bar", 2); |
| ArrayListMultimap<String, Integer> copy |
| = ArrayListMultimap.create(multimap); |
| assertEquals(multimap, copy); |
| } |
| |
| public void testCreate() { |
| ArrayListMultimap<String, Integer> multimap |
| = ArrayListMultimap.create(); |
| assertEquals(3, multimap.expectedValuesPerKey); |
| } |
| |
| public void testCreateFromSizes() { |
| ArrayListMultimap<String, Integer> multimap |
| = ArrayListMultimap.create(15, 20); |
| assertEquals(20, multimap.expectedValuesPerKey); |
| } |
| |
| public void testCreateFromIllegalSizes() { |
| try { |
| ArrayListMultimap.create(15, -2); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| |
| try { |
| ArrayListMultimap.create(-15, 2); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testCreateFromHashMultimap() { |
| Multimap<String, Integer> original = HashMultimap.create(); |
| ArrayListMultimap<String, Integer> multimap |
| = ArrayListMultimap.create(original); |
| assertEquals(3, multimap.expectedValuesPerKey); |
| } |
| |
| public void testCreateFromArrayListMultimap() { |
| ArrayListMultimap<String, Integer> original |
| = ArrayListMultimap.create(15, 20); |
| ArrayListMultimap<String, Integer> multimap |
| = ArrayListMultimap.create(original); |
| assertEquals(20, multimap.expectedValuesPerKey); |
| } |
| |
| public void testTrimToSize() { |
| ArrayListMultimap<String, Integer> multimap |
| = ArrayListMultimap.create(); |
| multimap.put("foo", 1); |
| multimap.put("foo", 2); |
| multimap.put("bar", 3); |
| multimap.trimToSize(); |
| assertEquals(3, multimap.size()); |
| assertThat(multimap.get("foo")).containsExactly(1, 2).inOrder(); |
| assertThat(multimap.get("bar")).contains(3); |
| } |
| } |
| |