96 lines
2.7 KiB
Java
96 lines
2.7 KiB
Java
/*
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* Copyright (C) 2007 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.primitives;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.testing.NullPointerTester;
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import java.util.Set;
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import junit.framework.TestCase;
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/**
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* Unit test for {@link Primitives}.
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*
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* @author Kevin Bourrillion
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*/
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public class PrimitivesTest extends TestCase {
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public void testIsWrapperType() {
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assertTrue(Primitives.isWrapperType(Void.class));
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assertFalse(Primitives.isWrapperType(void.class));
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}
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public void testWrap() {
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assertSame(Integer.class, Primitives.wrap(int.class));
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assertSame(Integer.class, Primitives.wrap(Integer.class));
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assertSame(String.class, Primitives.wrap(String.class));
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}
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public void testUnwrap() {
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assertSame(int.class, Primitives.unwrap(Integer.class));
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assertSame(int.class, Primitives.unwrap(int.class));
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assertSame(String.class, Primitives.unwrap(String.class));
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}
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public void testAllPrimitiveTypes() {
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Set<Class<?>> primitives = Primitives.allPrimitiveTypes();
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assertEquals(
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ImmutableSet.<Object>of(
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boolean.class,
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byte.class,
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char.class,
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double.class,
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float.class,
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int.class,
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long.class,
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short.class,
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void.class),
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primitives);
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try {
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primitives.remove(boolean.class);
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fail();
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} catch (UnsupportedOperationException expected) {
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}
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}
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public void testAllWrapperTypes() {
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Set<Class<?>> wrappers = Primitives.allWrapperTypes();
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assertEquals(
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ImmutableSet.<Object>of(
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Boolean.class,
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Byte.class,
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Character.class,
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Double.class,
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Float.class,
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Integer.class,
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Long.class,
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Short.class,
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Void.class),
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wrappers);
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try {
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wrappers.remove(Boolean.class);
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fail();
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} catch (UnsupportedOperationException expected) {
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}
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}
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public void testNullPointerExceptions() {
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NullPointerTester tester = new NullPointerTester();
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tester.testAllPublicStaticMethods(Primitives.class);
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}
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}
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