131 lines
4.2 KiB
Java
131 lines
4.2 KiB
Java
/*
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* Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8240632
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* @summary Test special cases of IEEE 754 recommended ops not otherwise tested
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* @build Tests
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* @build Ieee754SpecialCaseTests
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* @run main Ieee754SpecialCaseTests
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*/
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public class Ieee754SpecialCaseTests {
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private Ieee754SpecialCaseTests() {throw new AssertionError("No instances for you.");}
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public static void main(String... args) {
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int failures = 0;
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failures += testSpecialCos();
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failures += testSpecialAcos();
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failures += testSpecialAtan();
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failures += testSpecialLog();
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if (failures > 0) {
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System.err.printf("Testing special cases incurred %d failures.%n", failures);
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throw new RuntimeException();
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}
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}
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private static int testSpecialCos() {
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int failures = 0;
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double [][] testCases = {
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{+0.0, 1.0},
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{-0.0, 1.0},
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};
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for(double[] testCase: testCases) {
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failures += testCosCase(testCase[0], testCase[1]);
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}
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return failures;
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}
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private static int testCosCase(double input, double expected) {
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int failures = 0;
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failures += Tests.test("Math.cos", input, Math::cos, expected);
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failures += Tests.test("StrictMath.cos", input, StrictMath::cos, expected);
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return failures;
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}
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private static int testSpecialAcos() {
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int failures = 0;
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double [][] testCases = {
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{1.0, 0.0},
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};
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for(double[] testCase: testCases) {
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failures += testAcosCase(testCase[0], testCase[1]);
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}
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return failures;
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}
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private static int testAcosCase(double input, double expected) {
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int failures = 0;
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failures += Tests.test("Math.acos", input, Math::acos, expected);
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failures += Tests.test("StrictMath.acos", input, StrictMath::acos, expected);
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return failures;
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}
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private static int testSpecialAtan() {
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int failures = 0;
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double [][] testCases = {
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{Double.POSITIVE_INFINITY, +Math.PI/2.0},
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{Double.NEGATIVE_INFINITY, -Math.PI/2.0},
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};
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for(double[] testCase: testCases) {
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failures += testAtanCase(testCase[0], testCase[1]);
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}
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return failures;
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}
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private static int testAtanCase(double input, double expected) {
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int failures = 0;
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failures += Tests.test("Math.atan", input, Math::atan, expected);
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failures += Tests.test("StrictMath.atan", input, StrictMath::atan, expected);
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return failures;
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}
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private static int testSpecialLog() {
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int failures = 0;
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double [][] testCases = {
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{1.0, +0.0},
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};
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for(double[] testCase: testCases) {
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failures += testLogCase(testCase[0], testCase[1]);
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}
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return failures;
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}
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private static int testLogCase(double input, double expected) {
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int failures = 0;
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failures += Tests.test("Math.log", input, Math::log, expected);
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failures += Tests.test("StrictMath.log", input, StrictMath::log, expected);
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return failures;
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}
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}
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