russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
82 lines
3.1 KiB
Java
82 lines
3.1 KiB
Java
/*
|
|
* Copyright (c) 2016, 2025, 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 8155106
|
|
* @run junit/othervm -ea -esa test.java.lang.invoke.ArrayConstructorTest
|
|
*/
|
|
package test.java.lang.invoke;
|
|
|
|
import java.lang.invoke.MethodHandle;
|
|
import java.lang.invoke.MethodHandles;
|
|
|
|
import static java.lang.invoke.MethodType.methodType;
|
|
|
|
import org.junit.jupiter.api.Test;
|
|
import org.junit.jupiter.params.ParameterizedTest;
|
|
import org.junit.jupiter.params.provider.MethodSource;
|
|
|
|
import static org.junit.jupiter.api.Assertions.*;
|
|
|
|
public class ArrayConstructorTest {
|
|
|
|
static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
|
|
|
|
@Test
|
|
public void testFindConstructorArray() {
|
|
var nsme = assertThrows(NoSuchMethodException.class, () -> LOOKUP.findConstructor(Object[].class, methodType(void.class)));
|
|
assertEquals("no constructor for array class: [Ljava.lang.Object;", nsme.getMessage());
|
|
}
|
|
|
|
static Object[][] arrayConstructorNegative() {
|
|
return new Object[][]{
|
|
{String.class, IllegalArgumentException.class, "not an array class: java.lang.String"},
|
|
{null, NullPointerException.class, null}
|
|
};
|
|
}
|
|
|
|
@ParameterizedTest
|
|
@MethodSource("arrayConstructorNegative")
|
|
public void testArrayConstructorNegative(Class<?> clazz, Class<? extends Exception> exceptionClass, String message) {
|
|
var e = assertThrowsExactly(exceptionClass, () -> MethodHandles.arrayConstructor(clazz));
|
|
if (message != null) {
|
|
assertEquals(message, e.getMessage());
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public void testArrayConstructor() throws Throwable {
|
|
MethodHandle h = MethodHandles.arrayConstructor(String[].class);
|
|
assertEquals(methodType(String[].class, int.class), h.type());
|
|
String[] a = (String[]) h.invoke(17);
|
|
assertEquals(17, a.length);
|
|
}
|
|
|
|
@Test
|
|
public void testArrayConstructorNegativeIndex() throws Throwable {
|
|
MethodHandle h = MethodHandles.arrayConstructor(String[].class);
|
|
assertEquals(methodType(String[].class, int.class), h.type());
|
|
assertThrows(NegativeArraySizeException.class, () -> h.invoke(-1));
|
|
}
|
|
|
|
}
|