| /* |
| * 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.testers; |
| |
| import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE; |
| import static com.google.common.collect.testing.features.CollectionSize.ONE; |
| import static com.google.common.collect.testing.features.CollectionSize.ZERO; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUE_QUERIES; |
| import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import com.google.common.collect.testing.AbstractMapTester; |
| import com.google.common.collect.testing.Helpers; |
| 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 java.lang.reflect.Method; |
| import java.util.Iterator; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| import org.junit.Ignore; |
| |
| /** |
| * Tests {@link java.util.Map#entrySet}. |
| * |
| * @author Louis Wasserman |
| * @param <K> The key type of the map implementation under test. |
| * @param <V> The value type of the map implementation under test. |
| */ |
| @GwtCompatible |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class MapEntrySetTester<K, V> extends AbstractMapTester<K, V> { |
| private enum IncomparableType { |
| INSTANCE; |
| } |
| |
| @CollectionSize.Require(ONE) |
| @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE) |
| public void testEntrySetIteratorRemove() { |
| Set<Entry<K, V>> entrySet = getMap().entrySet(); |
| Iterator<Entry<K, V>> entryItr = entrySet.iterator(); |
| assertEquals(e0(), entryItr.next()); |
| entryItr.remove(); |
| assertTrue(getMap().isEmpty()); |
| assertFalse(entrySet.contains(e0())); |
| } |
| |
| public void testContainsEntryWithIncomparableKey() { |
| try { |
| assertFalse(getMap().entrySet().contains(Helpers.mapEntry(IncomparableType.INSTANCE, v0()))); |
| } catch (ClassCastException acceptable) { |
| // allowed by the spec |
| } |
| } |
| |
| public void testContainsEntryWithIncomparableValue() { |
| try { |
| assertFalse(getMap().entrySet().contains(Helpers.mapEntry(k0(), IncomparableType.INSTANCE))); |
| } catch (ClassCastException acceptable) { |
| // allowed by the spec |
| } |
| } |
| |
| @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES) |
| public void testContainsEntryWithNullKeyAbsent() { |
| assertFalse(getMap().entrySet().contains(Helpers.mapEntry(null, v0()))); |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| @MapFeature.Require(ALLOWS_NULL_KEYS) |
| public void testContainsEntryWithNullKeyPresent() { |
| initMapWithNullKey(); |
| assertTrue(getMap().entrySet().contains(Helpers.mapEntry(null, getValueForNullKey()))); |
| } |
| |
| @MapFeature.Require(ALLOWS_NULL_VALUE_QUERIES) |
| public void testContainsEntryWithNullValueAbsent() { |
| assertFalse(getMap().entrySet().contains(Helpers.mapEntry(k0(), null))); |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| @MapFeature.Require(ALLOWS_NULL_VALUES) |
| public void testContainsEntryWithNullValuePresent() { |
| initMapWithNullValue(); |
| assertTrue(getMap().entrySet().contains(Helpers.mapEntry(getKeyForNullValue(), null))); |
| } |
| |
| @MapFeature.Require(SUPPORTS_PUT) |
| @CollectionSize.Require(absent = ZERO) |
| public void testSetValue() { |
| for (Entry<K, V> entry : getMap().entrySet()) { |
| if (entry.getKey().equals(k0())) { |
| assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3())); |
| break; |
| } |
| } |
| expectReplacement(entry(k0(), v3())); |
| } |
| |
| @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES}) |
| @CollectionSize.Require(absent = ZERO) |
| public void testSetValueWithNullValuesPresent() { |
| for (Entry<K, V> entry : getMap().entrySet()) { |
| if (entry.getKey().equals(k0())) { |
| assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(null)); |
| break; |
| } |
| } |
| expectReplacement(entry(k0(), (V) null)); |
| } |
| |
| @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES) |
| @CollectionSize.Require(absent = ZERO) |
| public void testSetValueWithNullValuesAbsent() { |
| for (Entry<K, V> entry : getMap().entrySet()) { |
| try { |
| entry.setValue(null); |
| fail("Expected NullPointerException"); |
| } catch (NullPointerException exception) { |
| break; |
| } |
| } |
| expectUnchanged(); |
| } |
| |
| @GwtIncompatible // reflection |
| public static Method getContainsEntryWithIncomparableKeyMethod() { |
| return Helpers.getMethod(MapEntrySetTester.class, "testContainsEntryWithIncomparableKey"); |
| } |
| |
| @GwtIncompatible // reflection |
| public static Method getContainsEntryWithIncomparableValueMethod() { |
| return Helpers.getMethod(MapEntrySetTester.class, "testContainsEntryWithIncomparableValue"); |
| } |
| |
| @GwtIncompatible // reflection |
| public static Method getSetValueMethod() { |
| return Helpers.getMethod(MapEntrySetTester.class, "testSetValue"); |
| } |
| |
| @GwtIncompatible // reflection |
| public static Method getSetValueWithNullValuesPresentMethod() { |
| return Helpers.getMethod(MapEntrySetTester.class, "testSetValueWithNullValuesPresent"); |
| } |
| |
| @GwtIncompatible // reflection |
| public static Method getSetValueWithNullValuesAbsentMethod() { |
| return Helpers.getMethod(MapEntrySetTester.class, "testSetValueWithNullValuesAbsent"); |
| } |
| } |