/* * Copyright (c) 2005, 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 test.java.math.BigDecimal; /* * @test * @bug 6325535 * @summary Test for the rounding behavior of negate(MathContext) * @author Joseph D. Darcy */ import java.math.*; import org.testng.Assert; import org.testng.annotations.Test; // Android-changed: Replace error counting with asserts. public class NegateTests { static BigDecimal negateThenRound(BigDecimal bd, MathContext mc) { return bd.negate().plus(mc); } static BigDecimal absThenRound(BigDecimal bd, MathContext mc) { return bd.abs().plus(mc); } static void negateTest(BigDecimal[][] testCases, MathContext mc) { for (BigDecimal [] testCase : testCases) { BigDecimal bd = testCase[0]; BigDecimal neg1 = bd.negate(mc); BigDecimal neg2 = negateThenRound(bd, mc); BigDecimal expected = testCase[1]; Assert.assertEquals(neg1, expected, "(" + bd + ").negate(" + mc + ") => " + neg1 + " != expected " + expected); Assert.assertEquals(neg1, neg2, "(" + bd + ").negate(" + mc + ") => " + neg1 + " != ntr " + neg2); // Test abs consistency BigDecimal abs = bd.abs(mc); BigDecimal expectedAbs = absThenRound(bd,mc); Assert.assertEquals(abs, expectedAbs, "(" + bd + ").abs(" + mc + ") => " + abs + " != atr " + expectedAbs); } } @Test public void negateTests() { BigDecimal [][] testCasesCeiling = { {new BigDecimal("1.3"), new BigDecimal("-1")}, {new BigDecimal("-1.3"), new BigDecimal("2")}, }; negateTest(testCasesCeiling, new MathContext(1, RoundingMode.CEILING)); BigDecimal [][] testCasesFloor = { {new BigDecimal("1.3"), new BigDecimal("-2")}, {new BigDecimal("-1.3"), new BigDecimal("1")}, }; negateTest(testCasesFloor, new MathContext(1, RoundingMode.FLOOR)); } }