| /* |
| * Copyright (C) 2008 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.FAILS_FAST_ON_CONCURRENT_MODIFICATION; |
| 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.ListFeature.SUPPORTS_REMOVE_WITH_INDEX; |
| |
| import com.google.common.annotations.GwtCompatible; |
| 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.ListFeature; |
| import java.util.ConcurrentModificationException; |
| import java.util.Iterator; |
| import java.util.List; |
| import org.junit.Ignore; |
| |
| /** |
| * A generic JUnit test which tests {@code remove(int)} operations on a list. Can't be invoked |
| * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}. |
| * |
| * @author Chris Povirk |
| */ |
| @GwtCompatible |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class ListRemoveAtIndexTester<E> extends AbstractListTester<E> { |
| @ListFeature.Require(absent = SUPPORTS_REMOVE_WITH_INDEX) |
| @CollectionSize.Require(absent = ZERO) |
| public void testRemoveAtIndex_unsupported() { |
| try { |
| getList().remove(0); |
| fail("remove(i) should throw"); |
| } catch (UnsupportedOperationException expected) { |
| } |
| expectUnchanged(); |
| } |
| |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| public void testRemoveAtIndex_negative() { |
| try { |
| getList().remove(-1); |
| fail("remove(-1) should throw"); |
| } catch (IndexOutOfBoundsException expected) { |
| } |
| expectUnchanged(); |
| } |
| |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| public void testRemoveAtIndex_tooLarge() { |
| try { |
| getList().remove(getNumElements()); |
| fail("remove(size) should throw"); |
| } catch (IndexOutOfBoundsException expected) { |
| } |
| expectUnchanged(); |
| } |
| |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| @CollectionSize.Require(absent = ZERO) |
| public void testRemoveAtIndex_first() { |
| runRemoveTest(0); |
| } |
| |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| @CollectionSize.Require(absent = {ZERO, ONE}) |
| public void testRemoveAtIndex_middle() { |
| runRemoveTest(getNumElements() / 2); |
| } |
| |
| @CollectionFeature.Require(FAILS_FAST_ON_CONCURRENT_MODIFICATION) |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| @CollectionSize.Require(absent = ZERO) |
| public void testRemoveAtIndexConcurrentWithIteration() { |
| try { |
| Iterator<E> iterator = collection.iterator(); |
| getList().remove(getNumElements() / 2); |
| iterator.next(); |
| fail("Expected ConcurrentModificationException"); |
| } catch (ConcurrentModificationException expected) { |
| // success |
| } |
| } |
| |
| @ListFeature.Require(SUPPORTS_REMOVE_WITH_INDEX) |
| @CollectionSize.Require(absent = ZERO) |
| public void testRemoveAtIndex_last() { |
| runRemoveTest(getNumElements() - 1); |
| } |
| |
| private void runRemoveTest(int index) { |
| assertEquals( |
| Platform.format("remove(%d) should return the element at index %d", index, index), |
| getList().get(index), |
| getList().remove(index)); |
| List<E> expected = Helpers.copyToList(createSamplesArray()); |
| expected.remove(index); |
| expectContents(expected); |
| } |
| } |