--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/EqualityValueProfileTest.java	Wed Dec 16 16:38:13 2015 +0100
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2015, 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.truffle.api.profiles;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.theories.DataPoint;
+import org.junit.experimental.theories.Theories;
+import org.junit.experimental.theories.Theory;
+import org.junit.runner.RunWith;
+
+@RunWith(Theories.class)
+public class EqualityValueProfileTest {
+
+    @DataPoint public static final String O1 = new String();
+    @DataPoint public static final String O2 = O1;
+    @DataPoint public static final Object O3 = new Object();
+    @DataPoint public static final Integer O4 = new Integer(1);
+    @DataPoint public static final Integer O5 = new Integer(1);
+    @DataPoint public static final Integer O6 = null;
+
+    private ValueProfile.Equality profile;
+
+    @Before
+    public void create() {
+        profile = (ValueProfile.Equality) ValueProfile.Equality.create();
+    }
+
+    @Test
+    public void testInitial() throws Exception {
+        assertThat(profile.isGeneric(), is(false));
+        assertThat(profile.isUninitialized(), is(true));
+        profile.toString(); // test that it is not crashing
+    }
+
+    @Theory
+    public void testProfileOne(Object value) throws Exception {
+        Object result = profile.profile(value);
+        assertThat(result, is(equalTo(value)));
+        if (value == null) {
+            assertThat(profile.isUninitialized(), is(false));
+            assertThat(profile.isGeneric(), is(true));
+        } else {
+            assertEquals(profile.getCachedValue(), value);
+            assertThat(profile.isUninitialized(), is(false));
+            assertThat(profile.isGeneric(), is(false));
+        }
+        profile.toString(); // test that it is not crashing
+    }
+
+    @Theory
+    public void testProfileTwo(Object value0, Object value1) throws Exception {
+        Object result0 = profile.profile(value0);
+        Object result1 = profile.profile(value1);
+
+        assertThat(result0, is(equalTo(value0)));
+        assertThat(result1, is(equalTo(value1)));
+
+        if (value0 != null && value0.equals(value1)) {
+            assertThat(profile.getCachedValue(), is(equalTo(value0)));
+            assertThat(profile.isGeneric(), is(false));
+        } else {
+            assertThat(profile.isGeneric(), is(true));
+        }
+        assertThat(profile.isUninitialized(), is(false));
+        profile.toString(); // test that it is not crashing
+    }
+
+    @Theory
+    public void testProfileThree(Object value0, Object value1, Object value2) throws Exception {
+        Object result0 = profile.profile(value0);
+        Object result1 = profile.profile(value1);
+        Object result2 = profile.profile(value2);
+
+        assertThat(result0, is(equalTo(value0)));
+        assertThat(result1, is(equalTo(value1)));
+        assertThat(result2, is(equalTo(value2)));
+
+        if (value0 != null && value0.equals(value1) && value1 != null && value1.equals(value2)) {
+            assertThat(profile.getCachedValue(), is(equalTo(value0)));
+            assertThat(profile.isGeneric(), is(false));
+        } else {
+            assertThat(profile.isGeneric(), is(true));
+        }
+        assertThat(profile.isUninitialized(), is(false));
+        profile.toString(); // test that it is not crashing
+    }
+
+}