001/*
002 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023/*
024 */
025package com.oracle.graal.jtt.lang;
026
027import org.junit.*;
028
029import com.oracle.graal.jtt.*;
030
031public class StringCoding_Scale extends JTTTest {
032
033    public static float maxCharPerByte = 1.0f;
034
035    public static int test(int i) {
036        return scale(i, maxCharPerByte);
037    }
038
039    // Copy of java.lang.StringCode.scale
040    private static int scale(int len, float expansionFactor) {
041        // We need to perform double, not float, arithmetic; otherwise
042        // we lose low order bits when len is larger than 2**24.
043        return (int) (len * (double) expansionFactor);
044    }
045
046    @Test
047    public void run0() throws Throwable {
048        runTest("test", 2);
049    }
050
051    @Test
052    public void run1() throws Throwable {
053        runTest("test", 1);
054    }
055
056    @Test
057    public void run2() throws Throwable {
058        runTest("test", 0);
059    }
060
061}