| /* |
| * Copyright (C) 2013 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.testing.google; |
| |
| import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_QUERIES; |
| import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES; |
| import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; |
| import static com.google.common.collect.testing.features.CollectionSize.ZERO; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.collect.testing.WrongType; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| |
| /** |
| * Tests for {@code Multiset#count}. |
| * |
| * @author Jared Levy |
| */ |
| @GwtCompatible(emulated = true) |
| public class MultisetCountTester<E> extends AbstractMultisetTester<E> { |
| |
| public void testCount_0() { |
| assertEquals("multiset.count(missing) didn't return 0", |
| 0, getMultiset().count(samples.e3)); |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| public void testCount_1() { |
| assertEquals("multiset.count(present) didn't return 1", |
| 1, getMultiset().count(samples.e0)); |
| } |
| |
| @CollectionSize.Require(SEVERAL) |
| public void testCount_3() { |
| initThreeCopies(); |
| assertEquals("multiset.count(thriceContained) didn't return 3", |
| 3, getMultiset().count(samples.e0)); |
| } |
| |
| @CollectionFeature.Require(ALLOWS_NULL_QUERIES) |
| public void testCount_nullAbsent() { |
| assertEquals("multiset.count(null) didn't return 0", |
| 0, getMultiset().count(null)); |
| } |
| |
| @CollectionFeature.Require(absent = ALLOWS_NULL_QUERIES) |
| public void testCount_null_forbidden() { |
| try { |
| getMultiset().count(null); |
| fail("Expected NullPointerException"); |
| } catch (NullPointerException expected) {} |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| @CollectionFeature.Require(ALLOWS_NULL_VALUES) |
| public void testCount_nullPresent() { |
| initCollectionWithNullElement(); |
| assertEquals(1, getMultiset().count(null)); |
| } |
| |
| public void testCount_wrongType() { |
| assertEquals("multiset.count(wrongType) didn't return 0", |
| 0, getMultiset().count(WrongType.VALUE)); |
| } |
| } |
| |