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/*
 * 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;

/**
 * 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}.
 *
 * 

This class is GWT compatible. * * @author Chris Povirk */ @GwtCompatible public class ListRemoveAtIndexTester extends AbstractListTester { @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 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 expected = Helpers.copyToList(createSamplesArray()); expected.remove(index); expectContents(expected); } }





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