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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.CollectionSize.ZERO;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionSize;
import java.util.Arrays;
/**
* A generic JUnit test which tests {@code toArray()} operations on a list.
* Can't be invoked directly; please see
* {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
*
* <p>This class is GWT compatible.
*
* @author Chris Povirk
*/
@GwtCompatible
public class ListToArrayTester<E> extends AbstractListTester<E> {
// CollectionToArrayTester tests everything except ordering.
public void testToArray_noArg() {
Object[] actual = getList().toArray();
assertArrayEquals("toArray() order should match list",
createOrderedArray(), actual);
}
@CollectionSize.Require(absent = ZERO)
public void testToArray_tooSmall() {
Object[] actual = getList().toArray(new Object[0]);
assertArrayEquals("toArray(tooSmall) order should match list",
createOrderedArray(), actual);
}
public void testToArray_largeEnough() {
Object[] actual = getList().toArray(new Object[getNumElements()]);
assertArrayEquals("toArray(largeEnough) order should match list",
createOrderedArray(), actual);
}
private static void assertArrayEquals(String message, Object[] expected,
Object[] actual) {
assertEquals(message, Arrays.asList(expected), Arrays.asList(actual));
}
}
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