mirror of https://github.com/tc39/test262.git
47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: Operator x - y produces the same result as x + (-y)
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es5id: 11.6.2_A4_T5
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description: >
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Using the rule of sum of two zeroes and the fact that a - b = a +
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(-b)
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---*/
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//CHECK#1
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if (-0 - -0 !== 0 ) {
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$ERROR('#1.1: -0 - -0 === 0. Actual: ' + (-0 - -0));
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} else {
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if (1 / (-0 - -0) !== Number.POSITIVE_INFINITY) {
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$ERROR('#1.2: -0 - -0 === + 0. Actual: -0');
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}
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}
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//CHECK#2
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if (0 - -0 !== 0 ) {
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$ERROR('#2.1: 0 - -0 === 0. Actual: ' + (0 - -0));
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} else {
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if (1 / (0 - -0) !== Number.POSITIVE_INFINITY) {
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$ERROR('#2.2: 0 - -0 === + 0. Actual: -0');
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}
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}
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//CHECK#3
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if (-0 - 0 !== -0 ) {
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$ERROR('#3.1: -0 - 0 === 0. Actual: ' + (-0 - 0));
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} else {
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if (1 / (-0 - 0) !== Number.NEGATIVE_INFINITY) {
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$ERROR('#3.2: -0 - 0 === - 0. Actual: +0');
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}
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}
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//CHECK#4
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if (0 - 0 !== 0 ) {
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$ERROR('#4.1: 0 - 0 === 0. Actual: ' + (0 - 0));
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} else {
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if (1 / (0 - 0) !== Number.POSITIVE_INFINITY) {
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$ERROR('#4.2: 0 - 0 === + 0. Actual: -0');
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}
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}
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