1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @run testng ConvertTest 27 */ 28 29 import org.testng.annotations.DataProvider; 30 import org.testng.annotations.Test; 31 32 import java.lang.invoke.ConstantBootstraps; 33 import java.math.BigInteger; 34 35 import static org.testng.Assert.assertEquals; 36 37 public class ConvertTest { 38 39 @DataProvider 40 public static Object[][] cceInputs() { 41 return new Object[][]{ 42 { void.class, null }, 43 { Integer.class, "a" }, 44 { int.class, BigInteger.ZERO }, 45 }; 46 } 47 48 @Test(dataProvider = "cceInputs", expectedExceptions = ClassCastException.class) 49 public void testBadConversion(Class<?> dstType, Object value) { 50 ConstantBootstraps.explicitCast(null, null, dstType, value); 51 } 52 53 @DataProvider 54 public static Object[][] goodInputs() { 55 Object o = new Object(); 56 return new Object[][]{ 57 { Object.class, null, null }, 58 { Object.class, o, o }, 59 { String.class, "abc", "abc" }, 60 { short.class, 10, (short) 10 }, 61 { int.class, (short) 10, 10 }, 62 { boolean.class, 1, true }, 63 { boolean.class, 2, false }, 64 { int.class, true, 1 }, 65 { int.class, false, 0 }, 66 { int.class, 10, 10 }, 67 { Integer.class, 10, 10 }, 68 { Object.class, 10, 10 }, 69 { Number.class, 10, 10 }, 70 }; 71 } 72 73 @Test(dataProvider = "goodInputs") 74 public void testSuccess(Class<?> dstType, Object value, Object expected) { 75 Object actual = ConstantBootstraps.explicitCast(null, null, dstType, value); 76 assertEquals(actual, expected); 77 } 78 79 } 80