1 /* 2 * Copyright (c) 2014, 2015, 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 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" 27 * @compile ConstantTest.java FieldUniverse.java TypeUniverse.java TestMetaAccessProvider.java 28 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.ConstantTest 29 */ 30 31 package jdk.vm.ci.runtime.test; 32 33 import jdk.vm.ci.meta.JavaConstant; 34 import jdk.vm.ci.meta.JavaKind; 35 36 import org.junit.Assert; 37 import org.junit.Test; 38 39 public class ConstantTest extends FieldUniverse { 40 41 @Test 42 public void testNegativeZero() { 43 Assert.assertTrue("Constant for 0.0f must be different from -0.0f", JavaConstant.FLOAT_0 != JavaConstant.forFloat(-0.0F)); 44 Assert.assertTrue("Constant for 0.0d must be different from -0.0d", JavaConstant.DOUBLE_0 != JavaConstant.forDouble(-0.0d)); 45 } 46 47 @Test 48 public void testNullIsNull() { 49 Assert.assertTrue(JavaConstant.NULL_POINTER.isNull()); 50 } 51 52 @Test 53 public void testOne() { 54 for (JavaKind kind : JavaKind.values()) { 55 if (kind.isNumericInteger() || kind.isNumericFloat()) { 56 Assert.assertTrue(JavaConstant.one(kind).getJavaKind() == kind); 57 } 58 } 59 Assert.assertEquals(1, JavaConstant.one(JavaKind.Int).asInt()); 60 Assert.assertEquals(1L, JavaConstant.one(JavaKind.Long).asLong()); 61 Assert.assertEquals(1, JavaConstant.one(JavaKind.Byte).asInt()); 62 Assert.assertEquals(1, JavaConstant.one(JavaKind.Short).asInt()); 63 Assert.assertEquals(1, JavaConstant.one(JavaKind.Char).asInt()); 64 Assert.assertTrue(1F == JavaConstant.one(JavaKind.Float).asFloat()); 65 Assert.assertTrue(1D == JavaConstant.one(JavaKind.Double).asDouble()); 66 } 67 68 @Test(expected = IllegalArgumentException.class) 69 public void testIllegalOne() { 70 JavaConstant.one(JavaKind.Illegal); 71 } 72 73 @Test(expected = IllegalArgumentException.class) 74 public void testVoidOne() { 75 JavaConstant.one(JavaKind.Void); 76 } 77 }