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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8281671
* @summary Checks on various "getFooName" methods of java.lang.Class
*/
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
public class NameTest {
public static void main(String... args) {
testCanonicalName();
testSimpleName();
}
private static void testCanonicalName() {
class LocalClass {} // Local class; no canonical name
Object o = new Object() {}; // Anonymous class; no canonical name
Object[] objectArray = {};
Map<Class<?>, String> expectedCanonicalName = new HashMap<>();
expectedCanonicalName.put(LocalClass.class, null);
expectedCanonicalName.put(o.getClass(), null);
// If a component type doesn't have a canonical name, neither
// does an array of that type.
expectedCanonicalName.put(LocalClass.class.arrayType(), null);
expectedCanonicalName.put(o.getClass().arrayType(), null);
expectedCanonicalName.put(int.class, "int");
expectedCanonicalName.put(Object.class, "java.lang.Object");
expectedCanonicalName.put(objectArray.getClass(), "java.lang.Object[]");
for (var entry : expectedCanonicalName.entrySet()) {
var key = entry.getKey();
var expectedName = entry.getValue();
String canonicalName = key.getCanonicalName();
if (!Objects.equals(canonicalName, expectedName)) {
System.err.println("Unexpected canonical name '" +
canonicalName + "' found for " +
key + ", expected " + expectedName);
throw new RuntimeException();
}
}
}
private static void testSimpleName() {
class ALocalClass {} // Local class
Object o = new Object() {}; // Anonymous class, empty simple name
Object[] objectArray = {};
Map<Class<?>, String> expectedSimpleName = new HashMap<>();
expectedSimpleName.put(ALocalClass.class, "ALocalClass");
expectedSimpleName.put(o.getClass(), "");
expectedSimpleName.put(ALocalClass.class.arrayType(), "ALocalClass[]");
expectedSimpleName.put(o.getClass().arrayType(), "[]");
expectedSimpleName.put(int.class, "int");
expectedSimpleName.put(Object.class, "Object");
expectedSimpleName.put(objectArray.getClass(), "Object[]");
for (var entry : expectedSimpleName.entrySet()) {
var key = entry.getKey();
var expectedName = entry.getValue();
String simpleName = key.getSimpleName();
if (!Objects.equals(simpleName, expectedName)) {
System.err.println("Unexpected simple name '" +
simpleName + "' found for " +
key + ", expected " + expectedName);
throw new RuntimeException();
}
}
}
}
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