1 /*
   2  * Copyright (c) 2016, 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 package org.graalvm.compiler.jtt.lang;
  24 
  25 import java.util.ArrayList;
  26 import java.util.Collection;
  27 
  28 import org.junit.Test;
  29 import org.junit.runner.RunWith;
  30 import org.junit.runners.Parameterized;
  31 import org.junit.runners.Parameterized.Parameter;
  32 import org.junit.runners.Parameterized.Parameters;
  33 
  34 import org.graalvm.compiler.jtt.JTTTest;
  35 
  36 @RunWith(Parameterized.class)
  37 public class Math_round extends JTTTest {
  38 
  39     @Parameter(value = 0) public double input;
  40 
  41     public static double rint(double arg) {
  42         return Math.rint(arg);
  43     }
  44 
  45     @Test
  46     public void runRint() throws Throwable {
  47         runTest("rint", input);
  48     }
  49 
  50     public static double floor(double arg) {
  51         return Math.floor(arg);
  52     }
  53 
  54     @Test
  55     public void runFloor() throws Throwable {
  56         runTest("floor", input);
  57     }
  58 
  59     public static double ceil(double arg) {
  60         return Math.ceil(arg);
  61     }
  62 
  63     @Test
  64     public void runCeil() throws Throwable {
  65         runTest("ceil", input);
  66     }
  67 
  68     @Parameters(name = "{0}")
  69     public static Collection<Object[]> data() {
  70         ArrayList<Object[]> tests = new ArrayList<>();
  71         for (int i = -3; i < 3; i++) {
  72             addTest(tests, i);
  73             addTest(tests, i + 0.2);
  74             addTest(tests, i + 0.5);
  75             addTest(tests, i + 0.7);
  76         }
  77         addTest(tests, -0.0);
  78         addTest(tests, Double.NaN);
  79         addTest(tests, Double.NEGATIVE_INFINITY);
  80         addTest(tests, Double.POSITIVE_INFINITY);
  81         return tests;
  82     }
  83 
  84     private static void addTest(ArrayList<Object[]> tests, double input) {
  85         tests.add(new Object[]{input});
  86     }
  87 }