97 lines
3.4 KiB
Java
97 lines
3.4 KiB
Java
/*
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* Copyright (c) 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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/* @test
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* @bug 8155106
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* @run testng/othervm -ea -esa test.java.lang.invoke.ArrayConstructorTest
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*/
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package test.java.lang.invoke;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import static java.lang.invoke.MethodType.methodType;
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import static org.testng.AssertJUnit.*;
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import org.testng.annotations.*;
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public class ArrayConstructorTest {
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static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
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@Test
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public static void testFindConstructorArray() {
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boolean caught = false;
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try {
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MethodHandle h = LOOKUP.findConstructor(Object[].class, methodType(void.class));
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} catch (NoSuchMethodException nsme) {
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assertEquals("no constructor for array class: [Ljava.lang.Object;", nsme.getMessage());
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caught = true;
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} catch (Exception e) {
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throw new AssertionError("unexpected exception: " + e);
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}
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assertTrue(caught);
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}
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@DataProvider
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static Object[][] arrayConstructorNegative() {
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return new Object[][]{
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{String.class, IllegalArgumentException.class, "not an array class: java.lang.String"},
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{null, NullPointerException.class, null}
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};
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}
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@Test(dataProvider = "arrayConstructorNegative")
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public static void testArrayConstructorNegative(Class<?> clazz, Class<?> exceptionClass, String message) {
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boolean caught = false;
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try {
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MethodHandle h = MethodHandles.arrayConstructor(clazz);
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} catch (Exception e) {
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assertEquals(exceptionClass, e.getClass());
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if (message != null) {
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assertEquals(message, e.getMessage());
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}
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caught = true;
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}
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assertTrue(caught);
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}
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@Test
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public static void testArrayConstructor() throws Throwable {
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MethodHandle h = MethodHandles.arrayConstructor(String[].class);
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assertEquals(methodType(String[].class, int.class), h.type());
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String[] a = (String[]) h.invoke(17);
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assertEquals(17, a.length);
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}
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@Test(expectedExceptions = {NegativeArraySizeException.class})
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public static void testArrayConstructorNegativeIndex() throws Throwable {
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MethodHandle h = MethodHandles.arrayConstructor(String[].class);
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assertEquals(methodType(String[].class, int.class), h.type());
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h.invoke(-1); // throws exception
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}
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}
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