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/*
* Copyright (c) 2003, 2023, 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.
*/
/*
* @test
* @library /test/lib
* @build Tests
* @run main SinCosTests
* @bug 8302040
* @summary Tests for {Math, StrictMath}.sqrt
*/
public class SinCosTests {
private SinCosTests(){}
public static void main(String... argv) {
int failures = 0;
failures += testSin();
failures += testCos();
if (failures > 0) {
System.err.println("Testing sin and cos incurred "
+ failures + " failures.");
throw new RuntimeException();
}
}
private static final double InfinityD = Double.POSITIVE_INFINITY;
private static final double NaNd = Double.NaN;
/**
* "Special cases:
*
* If the argument is NaN or an infinity, then the result is NaN.
*
* If the argument is zero, then the result is a zero with the
* same sign as the argument."
*/
private static int testSin() {
int failures = 0;
for(double nan : Tests.NaNs) {
failures += testSinCase(nan, NaNd);
}
double [][] testCases = {
{+InfinityD, NaNd},
{-InfinityD, NaNd},
{+0.0, +0.0},
{-0.0, -0.0},
};
for(int i = 0; i < testCases.length; i++) {
failures += testSinCase(testCases[i][0], testCases[i][1]);
}
return failures;
}
/**
* "Special cases:
*
* If the argument is NaN or an infinity, then the result is NaN.
* If the argument is zero, then the result is 1.0."
*/
private static int testCos() {
int failures = 0;
for(double nan : Tests.NaNs) {
failures += testCosCase(nan, NaNd);
}
double [][] testCases = {
{+InfinityD, NaNd},
{-InfinityD, NaNd},
{+0.0, +1.0},
{-0.0, +1.0},
};
for(int i = 0; i < testCases.length; i++) {
failures += testCosCase(testCases[i][0], testCases[i][1]);
}
return failures;
}
private static int testSinCase(double input, double expected) {
int failures=0;
failures+=Tests.test("Math.sin", input, Math::sin, expected);
failures+=Tests.test("StrictMath.sin", input, StrictMath::sin, expected);
return failures;
}
private static int testCosCase(double input, double expected) {
int failures=0;
failures+=Tests.test("Math.cos", input, Math::cos, expected);
failures+=Tests.test("StrictMath.cos", input, StrictMath::cos, expected);
return failures;
}
}
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