102 lines
4.1 KiB
Java
102 lines
4.1 KiB
Java
/*
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* Copyright (c) 2022, 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 8281671
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* @summary Checks on various "getFooName" methods of java.lang.Class
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*/
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Objects;
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public class NameTest {
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public static void main(String... args) {
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testCanonicalName();
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testSimpleName();
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}
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private static void testCanonicalName() {
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class LocalClass {} // Local class; no canonical name
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Object o = new Object() {}; // Anonymous class; no canonical name
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Object[] objectArray = {};
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Map<Class<?>, String> expectedCanonicalName = new HashMap<>();
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expectedCanonicalName.put(LocalClass.class, null);
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expectedCanonicalName.put(o.getClass(), null);
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// If a component type doesn't have a canonical name, neither
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// does an array of that type.
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expectedCanonicalName.put(LocalClass.class.arrayType(), null);
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expectedCanonicalName.put(o.getClass().arrayType(), null);
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expectedCanonicalName.put(int.class, "int");
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expectedCanonicalName.put(Object.class, "java.lang.Object");
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expectedCanonicalName.put(objectArray.getClass(), "java.lang.Object[]");
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for (var entry : expectedCanonicalName.entrySet()) {
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var key = entry.getKey();
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var expectedName = entry.getValue();
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String canonicalName = key.getCanonicalName();
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if (!Objects.equals(canonicalName, expectedName)) {
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System.err.println("Unexpected canonical name '" +
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canonicalName + "' found for " +
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key + ", expected " + expectedName);
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throw new RuntimeException();
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}
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}
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}
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private static void testSimpleName() {
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class ALocalClass {} // Local class
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Object o = new Object() {}; // Anonymous class, empty simple name
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Object[] objectArray = {};
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Map<Class<?>, String> expectedSimpleName = new HashMap<>();
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expectedSimpleName.put(ALocalClass.class, "ALocalClass");
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expectedSimpleName.put(o.getClass(), "");
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expectedSimpleName.put(ALocalClass.class.arrayType(), "ALocalClass[]");
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expectedSimpleName.put(o.getClass().arrayType(), "[]");
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expectedSimpleName.put(int.class, "int");
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expectedSimpleName.put(Object.class, "Object");
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expectedSimpleName.put(objectArray.getClass(), "Object[]");
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for (var entry : expectedSimpleName.entrySet()) {
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var key = entry.getKey();
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var expectedName = entry.getValue();
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String simpleName = key.getSimpleName();
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if (!Objects.equals(simpleName, expectedName)) {
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System.err.println("Unexpected simple name '" +
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simpleName + "' found for " +
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key + ", expected " + expectedName);
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throw new RuntimeException();
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}
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}
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}
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}
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