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Diffstat (limited to 'js/src/tests/ecma/Expressions/11.5.1.js')
-rw-r--r-- | js/src/tests/ecma/Expressions/11.5.1.js | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Expressions/11.5.1.js b/js/src/tests/ecma/Expressions/11.5.1.js new file mode 100644 index 000000000..409147f0d --- /dev/null +++ b/js/src/tests/ecma/Expressions/11.5.1.js @@ -0,0 +1,81 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +/** + File Name: 11.5.1.js + ECMA Section: 11.5.1 Applying the * operator + Description: + + 11.5.1 Applying the * operator + + The * operator performs multiplication, producing the product of its + operands. Multiplication is commutative. Multiplication is not always + associative in ECMAScript, because of finite precision. + + The result of a floating-point multiplication is governed by the rules + of IEEE 754 double-precision arithmetic: + + If either operand is NaN, the result is NaN. + The sign of the result is positive if both operands have the same sign, + negative if the operands have different signs. + Multiplication of an infinity by a zero results in NaN. + Multiplication of an infinity by an infinity results in an infinity. + The sign is determined by the rule already stated above. + Multiplication of an infinity by a finite non-zero value results in a + signed infinity. The sign is determined by the rule already stated above. + In the remaining cases, where neither an infinity or NaN is involved, the + product is computed and rounded to the nearest representable value using IEEE + 754 round-to-nearest mode. If the magnitude is too large to represent, + the result is then an infinity of appropriate sign. If the magnitude is + oo small to represent, the result is then a zero + of appropriate sign. The ECMAScript language requires support of gradual + underflow as defined by IEEE 754. + + Author: christine@netscape.com + Date: 12 november 1997 +*/ +var SECTION = "11.5.1"; +var VERSION = "ECMA_1"; +startTest(); + +writeHeaderToLog( SECTION + " Applying the * operator"); + +new TestCase( SECTION, "Number.NaN * Number.NaN", Number.NaN, Number.NaN * Number.NaN ); +new TestCase( SECTION, "Number.NaN * 1", Number.NaN, Number.NaN * 1 ); +new TestCase( SECTION, "1 * Number.NaN", Number.NaN, 1 * Number.NaN ); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY * 0", Number.NaN, Number.POSITIVE_INFINITY * 0 ); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * 0", Number.NaN, Number.NEGATIVE_INFINITY * 0 ); +new TestCase( SECTION, "0 * Number.POSITIVE_INFINITY", Number.NaN, 0 * Number.POSITIVE_INFINITY ); +new TestCase( SECTION, "0 * Number.NEGATIVE_INFINITY", Number.NaN, 0 * Number.NEGATIVE_INFINITY ); + +new TestCase( SECTION, "-0 * Number.POSITIVE_INFINITY", Number.NaN, -0 * Number.POSITIVE_INFINITY ); +new TestCase( SECTION, "-0 * Number.NEGATIVE_INFINITY", Number.NaN, -0 * Number.NEGATIVE_INFINITY ); +new TestCase( SECTION, "Number.POSITIVE_INFINITY * -0", Number.NaN, Number.POSITIVE_INFINITY * -0 ); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * -0", Number.NaN, Number.NEGATIVE_INFINITY * -0 ); + +new TestCase( SECTION, "0 * -0", -0, 0 * -0 ); +new TestCase( SECTION, "-0 * 0", -0, -0 * 0 ); +new TestCase( SECTION, "-0 * -0", 0, -0 * -0 ); +new TestCase( SECTION, "0 * 0", 0, 0 * 0 ); + +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * Number.NEGATIVE_INFINITY", Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY * Number.NEGATIVE_INFINITY ); +new TestCase( SECTION, "Number.POSITIVE_INFINITY * Number.NEGATIVE_INFINITY", Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY * Number.NEGATIVE_INFINITY ); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * Number.POSITIVE_INFINITY", Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY * Number.POSITIVE_INFINITY ); +new TestCase( SECTION, "Number.POSITIVE_INFINITY * Number.POSITIVE_INFINITY", Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY * Number.POSITIVE_INFINITY ); + +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * 1 ", Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY * 1 ); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY * -1 ", Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY * -1 ); +new TestCase( SECTION, "1 * Number.NEGATIVE_INFINITY", Number.NEGATIVE_INFINITY, 1 * Number.NEGATIVE_INFINITY ); +new TestCase( SECTION, "-1 * Number.NEGATIVE_INFINITY", Number.POSITIVE_INFINITY, -1 * Number.NEGATIVE_INFINITY ); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY * 1 ", Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY * 1 ); +new TestCase( SECTION, "Number.POSITIVE_INFINITY * -1 ", Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY * -1 ); +new TestCase( SECTION, "1 * Number.POSITIVE_INFINITY", Number.POSITIVE_INFINITY, 1 * Number.POSITIVE_INFINITY ); +new TestCase( SECTION, "-1 * Number.POSITIVE_INFINITY", Number.NEGATIVE_INFINITY, -1 * Number.POSITIVE_INFINITY ); + +test(); + |