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/*
* Copyright (C) 2007 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.ALLOWS_NULL_VALUES;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import com.google.common.collect.testing.WrongType;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
/**
* Common parent class for {@link ListIndexOfTester} and
* {@link ListLastIndexOfTester}.
*
* <p>This class is GWT compatible.
*
* @author Chris Povirk
*/
public abstract class AbstractListIndexOfTester<E>
extends AbstractListTester<E> {
/** Override to call {@code indexOf()} or {@code lastIndexOf()}. */
protected abstract int find(Object o);
/**
* Override to return "indexOf" or "lastIndexOf()" for use in failure
* messages.
*/
protected abstract String getMethodName();
@CollectionSize.Require(absent = ZERO)
public void testFind_yes() {
assertEquals(getMethodName() + "(firstElement) should return 0",
0, find(samples.e0));
}
public void testFind_no() {
assertEquals(getMethodName() + "(notPresent) should return -1",
-1, find(samples.e3));
}
@CollectionFeature.Require(ALLOWS_NULL_VALUES)
public void testFind_nullNotContainedButSupported() {
assertEquals(getMethodName() + "(nullNotPresent) should return -1",
-1, find(null));
}
@CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)
public void testFind_nullNotContainedAndUnsupported() {
try {
assertEquals(
getMethodName() + "(nullNotPresent) should return -1 or throw",
-1, find(null));
} catch (NullPointerException tolerated) {
}
}
@CollectionFeature.Require(ALLOWS_NULL_VALUES)
@CollectionSize.Require(absent = ZERO)
public void testFind_nonNullWhenNullContained() {
initCollectionWithNullElement();
assertEquals(getMethodName() + "(notPresent) should return -1",
-1, find(samples.e3));
}
@CollectionFeature.Require(ALLOWS_NULL_VALUES)
@CollectionSize.Require(absent = ZERO)
public void testFind_nullContained() {
initCollectionWithNullElement();
assertEquals(getMethodName() + "(null) should return " + getNullLocation(),
getNullLocation(), find(null));
}
public void testFind_wrongType() {
try {
assertEquals(getMethodName() + "(wrongType) should return -1 or throw",
-1, find(WrongType.VALUE));
} catch (ClassCastException tolerated) {
}
}
}
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