--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.api.meta.test/src/com/oracle/graal/api/meta/test/ConstantTest.java	Thu Jun 05 13:19:59 2014 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.api.meta.test;
+
+import org.junit.*;
+
+import com.oracle.graal.api.meta.*;
+
+public class ConstantTest extends FieldUniverse {
+
+    @Test
+    public void testNegativeZero() {
+        Assert.assertTrue("Constant for 0.0f must be different from -0.0f", Constant.FLOAT_0 != Constant.forFloat(-0.0F));
+        Assert.assertTrue("Constant for 0.0d must be different from -0.0d", Constant.DOUBLE_0 != Constant.forDouble(-0.0d));
+    }
+
+    @Test
+    public void testNullIsNull() {
+        Assert.assertTrue(Constant.NULL_OBJECT.isNull());
+    }
+
+    @Test
+    public void testOne() {
+        for (Kind kind : Kind.values()) {
+            if (kind.isNumericInteger() || kind.isNumericFloat()) {
+                Assert.assertTrue(Constant.one(kind).getKind() == kind);
+            }
+        }
+        Assert.assertEquals(1, Constant.one(Kind.Int).asInt());
+        Assert.assertEquals(1L, Constant.one(Kind.Long).asLong());
+        Assert.assertEquals(1, Constant.one(Kind.Byte).asInt());
+        Assert.assertEquals(1, Constant.one(Kind.Short).asInt());
+        Assert.assertEquals(1, Constant.one(Kind.Char).asInt());
+        Assert.assertTrue(1F == Constant.one(Kind.Float).asFloat());
+        Assert.assertTrue(1D == Constant.one(Kind.Double).asDouble());
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testIllegalOne() {
+        Constant.one(Kind.Illegal);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testVoidOne() {
+        Constant.one(Kind.Void);
+    }
+}