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.*;
  34 
  35 import org.junit.*;
  36 
  37 public class ConstantTest extends FieldUniverse {
  38 
  39     @Test
  40     public void testNegativeZero() {
  41         Assert.assertTrue("Constant for 0.0f must be different from -0.0f", JavaConstant.FLOAT_0 != JavaConstant.forFloat(-0.0F));
  42         Assert.assertTrue("Constant for 0.0d must be different from -0.0d", JavaConstant.DOUBLE_0 != JavaConstant.forDouble(-0.0d));
  43     }
  44 
  45     @Test
  46     public void testNullIsNull() {
  47         Assert.assertTrue(JavaConstant.NULL_POINTER.isNull());
  48     }
  49 
  50     @Test
  51     public void testOne() {
  52         for (JavaKind kind : JavaKind.values()) {
  53             if (kind.isNumericInteger() || kind.isNumericFloat()) {
  54                 Assert.assertTrue(JavaConstant.one(kind).getJavaKind() == kind);
  55             }
  56         }
  57         Assert.assertEquals(1, JavaConstant.one(JavaKind.Int).asInt());
  58         Assert.assertEquals(1L, JavaConstant.one(JavaKind.Long).asLong());
  59         Assert.assertEquals(1, JavaConstant.one(JavaKind.Byte).asInt());
  60         Assert.assertEquals(1, JavaConstant.one(JavaKind.Short).asInt());
  61         Assert.assertEquals(1, JavaConstant.one(JavaKind.Char).asInt());
  62         Assert.assertTrue(1F == JavaConstant.one(JavaKind.Float).asFloat());
  63         Assert.assertTrue(1D == JavaConstant.one(JavaKind.Double).asDouble());
  64     }
  65 
  66     @Test(expected = IllegalArgumentException.class)
  67     public void testIllegalOne() {
  68         JavaConstant.one(JavaKind.Illegal);
  69     }
  70 
  71     @Test(expected = IllegalArgumentException.class)
  72     public void testVoidOne() {
  73         JavaConstant.one(JavaKind.Void);
  74     }
  75 }