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.simpleArch == "aarch64") 27 * @library ../../../../../ 28 * @modules jdk.vm.ci/jdk.vm.ci.meta 29 * jdk.vm.ci/jdk.vm.ci.runtime 30 * java.base/jdk.internal.misc 31 * @build jdk.vm.ci.runtime.test.ConstantTest 32 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.ConstantTest 33 */ 34 // * @compile ConstantTest.java FieldUniverse.java TypeUniverse.java TestMetaAccessProvider.java 35 package jdk.vm.ci.runtime.test; 36 37 import jdk.vm.ci.meta.JavaConstant; 38 import jdk.vm.ci.meta.JavaKind; 39 40 import org.junit.Assert; 41 import org.junit.Test; 42 43 public class ConstantTest extends FieldUniverse { 44 45 @Test 46 public void testNegativeZero() { 47 Assert.assertTrue("Constant for 0.0f must be different from -0.0f", JavaConstant.FLOAT_0 != JavaConstant.forFloat(-0.0F)); 48 Assert.assertTrue("Constant for 0.0d must be different from -0.0d", JavaConstant.DOUBLE_0 != JavaConstant.forDouble(-0.0d)); 49 } 50 51 @Test 52 public void testNullIsNull() { 53 Assert.assertTrue(JavaConstant.NULL_POINTER.isNull()); 54 } 55 56 @Test 57 public void testOne() { 58 for (JavaKind kind : JavaKind.values()) { 59 if (kind.isNumericInteger() || kind.isNumericFloat()) { 60 Assert.assertTrue(JavaConstant.one(kind).getJavaKind() == kind); 61 } 62 } 63 Assert.assertEquals(1, JavaConstant.one(JavaKind.Int).asInt()); 64 Assert.assertEquals(1L, JavaConstant.one(JavaKind.Long).asLong()); 65 Assert.assertEquals(1, JavaConstant.one(JavaKind.Byte).asInt()); 66 Assert.assertEquals(1, JavaConstant.one(JavaKind.Short).asInt()); 67 Assert.assertEquals(1, JavaConstant.one(JavaKind.Char).asInt()); 68 Assert.assertTrue(1F == JavaConstant.one(JavaKind.Float).asFloat()); 69 Assert.assertTrue(1D == JavaConstant.one(JavaKind.Double).asDouble()); 70 } 71 72 @Test(expected = IllegalArgumentException.class) 73 public void testIllegalOne() { 74 JavaConstant.one(JavaKind.Illegal); 75 } 76 77 @Test(expected = IllegalArgumentException.class) 78 public void testVoidOne() { 79 JavaConstant.one(JavaKind.Void); 80 } 81 }