bf5e801501
Reviewed-by: mchung
83 lines
3.5 KiB
Java
83 lines
3.5 KiB
Java
/*
|
|
* Copyright (c) 2021, 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 8259922
|
|
* @run testng/othervm MethodHandlesCollectArgsTest
|
|
*/
|
|
|
|
import org.testng.annotations.Test;
|
|
import org.testng.annotations.DataProvider;
|
|
|
|
import java.lang.invoke.MethodHandle;
|
|
import java.lang.invoke.MethodHandles;
|
|
import java.lang.invoke.MethodType;
|
|
import static java.lang.invoke.MethodType.methodType;
|
|
|
|
import static org.testng.Assert.*;
|
|
|
|
public class MethodHandlesCollectArgsTest {
|
|
|
|
private static final MethodHandle TARGET_II_I = MethodHandles.empty(methodType(int.class, int.class, int.class));
|
|
private static final MethodHandle TARGET__V = MethodHandles.empty(methodType(void.class));
|
|
private static final MethodHandle FILTER_INT = MethodHandles.empty(methodType(int.class, String.class));
|
|
private static final MethodHandle FILTER_VOID = MethodHandles.empty(methodType(void.class, String.class));
|
|
|
|
@DataProvider(name = "illegalPos")
|
|
public static Object[][] illegalPos() {
|
|
return new Object[][] {
|
|
{TARGET_II_I, 2, FILTER_INT},
|
|
{TARGET_II_I, 3, FILTER_VOID},
|
|
{TARGET_II_I, -1, FILTER_INT},
|
|
{TARGET_II_I, -1, FILTER_VOID},
|
|
{TARGET__V, 0, FILTER_INT},
|
|
{TARGET__V, 1, FILTER_VOID},
|
|
{TARGET__V, -1, FILTER_VOID},
|
|
{TARGET__V, -1, FILTER_VOID}
|
|
};
|
|
}
|
|
|
|
@DataProvider(name = "validPos")
|
|
public static Object[][] validPos() {
|
|
return new Object[][] {
|
|
{TARGET_II_I, 0, FILTER_INT, methodType(int.class, String.class, int.class)},
|
|
{TARGET_II_I, 1, FILTER_INT, methodType(int.class, int.class, String.class)},
|
|
{TARGET_II_I, 0, FILTER_VOID, methodType(int.class, String.class, int.class, int.class)},
|
|
{TARGET_II_I, 1, FILTER_VOID, methodType(int.class, int.class, String.class, int.class)},
|
|
{TARGET_II_I, 2, FILTER_VOID, methodType(int.class, int.class, int.class, String.class)},
|
|
{TARGET__V, 0, FILTER_VOID, methodType(void.class, String.class)}
|
|
};
|
|
}
|
|
|
|
@Test(dataProvider="illegalPos", expectedExceptions = {IllegalArgumentException.class})
|
|
public void illegalPosition(MethodHandle target, int position, MethodHandle filter) {
|
|
MethodHandles.collectArguments(target, position, filter);
|
|
}
|
|
|
|
@Test(dataProvider="validPos")
|
|
public void legalPosition(MethodHandle target, int position, MethodHandle filter, MethodType expectedType) {
|
|
MethodHandle result = MethodHandles.collectArguments(target, position, filter);
|
|
assertEquals(result.type(), expectedType);
|
|
}
|
|
}
|