diff graal/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/FibonacciTest.java @ 12752:71991b7a0f14

SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Nov 2013 21:34:44 +0100
parents
children 69d2e4baa215
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/FibonacciTest.java	Mon Nov 11 21:34:44 2013 +0100
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2012, 2012, 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.sl.test;
+
+import javax.script.*;
+
+import org.junit.*;
+
+import com.oracle.truffle.sl.*;
+import com.oracle.truffle.sl.runtime.*;
+
+// @formatter:off
+public class FibonacciTest extends AbstractTest{
+
+    private static String[] INPUT = new String[] {
+        "function fib(num) { ",
+        "  if (num < 1) {return 0;}",
+        "  n1 = 0;",
+        "  n2 = 1;",
+        "  i = 1;",
+        "  while (i < num) {",
+        "    next = n2 + n1;",
+        "    n1 = n2;",
+        "    n2 = next;",
+        "    i = i + 1;",
+        "  }",
+        "  return n2;",
+        "}",
+        "function main(num) {  ",
+        "  return fib(num);",
+        "}  ",
+    };
+
+    // java reference
+    private static int test(int num) {
+        if (num <= 0) {
+            return 0;
+        }
+        int n1 = 0;
+        int n2 = 1;
+        for (int i = 1; i < num; i++) {
+            final int next = n2 + n1;
+            n1 = n2;
+            n2 = next;
+        }
+        return n2;
+    }
+
+    private static final int TEST_VALUE = 42;
+    private static final int ITERATIONS = 5000;
+
+    @Test
+    public void test() throws ScriptException {
+        StringBuilder s = new StringBuilder();
+        for (String line : INPUT) {
+            s.append(line).append("\n");
+        }
+        SLScript script = SLScript.create(new SLContext(System.out), s.toString());
+        Integer reference = test(TEST_VALUE);
+        for (int i = 0; i < ITERATIONS; i++) {
+            if (!reference.equals(script.run(TEST_VALUE))) {
+                throw new AssertionError();
+            }
+        }
+    }
+}