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Diffstat (limited to 'js/src/tests/ecma/Expressions/11.6.3.js')
| -rw-r--r-- | js/src/tests/ecma/Expressions/11.6.3.js | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Expressions/11.6.3.js b/js/src/tests/ecma/Expressions/11.6.3.js new file mode 100644 index 000000000..b2eb75e6a --- /dev/null +++ b/js/src/tests/ecma/Expressions/11.6.3.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: 11.6.3.js + ECMA Section: 11.6.3 Applying the additive operators + (+, -) to numbers + Description: + The + operator performs addition when applied to two operands of numeric + type, producing the sum of the operands. The - operator performs + subtraction, producing the difference of two numeric operands. + + Addition is a commutative operation, but not always associative. + + The result of an addition is determined using the rules of IEEE 754 + double-precision arithmetic: + + If either operand is NaN, the result is NaN. + The sum of two infinities of opposite sign is NaN. + The sum of two infinities of the same sign is the infinity of that sign. + The sum of an infinity and a finite value is equal to the infinite operand. + The sum of two negative zeros is 0. The sum of two positive zeros, or of + two zeros of opposite sign, is +0. + The sum of a zero and a nonzero finite value is equal to the nonzero + operand. + The sum of two nonzero finite values of the same magnitude and opposite + sign is +0. + In the remaining cases, where neither an infinity, nor a zero, nor NaN is + involved, and the operands have the same sign or have different + magnitudes, the sum 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 operation overflows and + the result is then an infinity 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 = "11.6.3"; +var VERSION = "ECMA_1"; +startTest(); + +writeHeaderToLog( SECTION + " Applying the additive operators (+,-) to numbers"); + +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.NaN - 1", Number.NaN, Number.NaN - 1 ); +new TestCase( SECTION, "1 - Number.NaN", Number.NaN, 1 - Number.NaN ); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY + Number.POSITIVE_INFINITY", Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY + Number.POSITIVE_INFINITY); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY + Number.NEGATIVE_INFINITY", Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY + Number.NEGATIVE_INFINITY); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY + Number.NEGATIVE_INFINITY", Number.NaN, Number.POSITIVE_INFINITY + Number.NEGATIVE_INFINITY); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY + Number.POSITIVE_INFINITY", Number.NaN, Number.NEGATIVE_INFINITY + Number.POSITIVE_INFINITY); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY - Number.POSITIVE_INFINITY", Number.NaN, Number.POSITIVE_INFINITY - Number.POSITIVE_INFINITY); +new TestCase( SECTION, "Number.NEGATIVE_INFINITY - Number.NEGATIVE_INFINITY", Number.NaN, Number.NEGATIVE_INFINITY - Number.NEGATIVE_INFINITY); + +new TestCase( SECTION, "Number.POSITIVE_INFINITY - Number.NEGATIVE_INFINITY", Number.POSITIVE_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, "-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, "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.MAX_VALUE - Number.MAX_VALUE", 0, Number.MAX_VALUE - Number.MAX_VALUE ); +new TestCase( SECTION, "1/Number.MAX_VALUE - 1/Number.MAX_VALUE", 0, 1/Number.MAX_VALUE - 1/Number.MAX_VALUE ); + +new TestCase( SECTION, "Number.MIN_VALUE - Number.MIN_VALUE", 0, Number.MIN_VALUE - Number.MIN_VALUE ); + +test(); |