114 lines
4.4 KiB
Java
114 lines
4.4 KiB
Java
/*
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* Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6298888 6992705 8161500 6304578
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* @summary Check Class.toGenericString()
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* @author Joseph D. Darcy
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*/
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import java.lang.reflect.*;
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import java.lang.annotation.*;
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import java.util.*;
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@ExpectedGenericString("public class GenericStringTest")
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public class GenericStringTest {
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public Map<String, Integer>[] mixed = null;
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public Map<String, Integer>[][] mixed2 = null;
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public static void main(String... args) throws ReflectiveOperationException {
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int failures = 0;
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String[][] nested = {{""}};
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int[][] intArray = {{1}};
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Map<Class<?>, String> testCases =
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Map.of(int.class, "int",
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void.class, "void",
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args.getClass(), "java.lang.String[]",
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nested.getClass(), "java.lang.String[][]",
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intArray.getClass(), "int[][]",
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java.lang.Enum.class, "public abstract class java.lang.Enum<E extends java.lang.Enum<E>>",
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java.util.Map.class, "public abstract interface java.util.Map<K,V>",
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java.util.EnumMap.class, "public class java.util.EnumMap<K extends java.lang.Enum<K>,V>",
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java.util.EventListenerProxy.class, "public abstract class java.util.EventListenerProxy<T extends java.util.EventListener>");
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for (Map.Entry<Class<?>, String> testCase : testCases.entrySet()) {
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failures += checkToGenericString(testCase.getKey(), testCase.getValue());
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}
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Field f = GenericStringTest.class.getDeclaredField("mixed");
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// The expected value includes "<K,V>" rather than
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// "<...String,...Integer>" since the Class object rather than
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// Type objects is being queried.
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failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[]");
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f = GenericStringTest.class.getDeclaredField("mixed2");
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failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[][]");
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for(Class<?> clazz : List.of(GenericStringTest.class,
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AnInterface.class,
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LocalMap.class,
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AnEnum.class,
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AnotherEnum.class)) {
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failures += checkToGenericString(clazz, clazz.getAnnotation(ExpectedGenericString.class).value());
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}
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if (failures > 0) {
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throw new RuntimeException();
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}
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}
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private static int checkToGenericString(Class<?> clazz, String expected) {
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String genericString = clazz.toGenericString();
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if (!genericString.equals(expected)) {
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System.err.printf("Unexpected Class.toGenericString output; expected %n\t'%s',%n got %n\t'%s'.%n",
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expected,
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genericString);
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return 1;
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} else
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return 0;
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}
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ExpectedGenericString {
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String value();
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}
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@ExpectedGenericString("abstract interface AnInterface")
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strictfp interface AnInterface {}
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@ExpectedGenericString("abstract interface LocalMap<K,V>")
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interface LocalMap<K,V> {}
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@ExpectedGenericString("final enum AnEnum")
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enum AnEnum {
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FOO;
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}
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@ExpectedGenericString("enum AnotherEnum")
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enum AnotherEnum {
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BAR{};
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}
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