| // Copyright 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| info: Operator x - y produces the same result as x + (-y) |
| es5id: 11.6.2_A4_T8 |
| description: > |
| If the magnitude is too large to represent, the operation |
| overflows and the result is then an infinity of appropriate sign |
| ---*/ |
| |
| //CHECK#1 |
| if (Number.MAX_VALUE - -Number.MAX_VALUE !== Number.POSITIVE_INFINITY) { |
| throw new Test262Error('#1: Number.MAX_VALUE - -Number.MAX_VALUE === Number.POSITIVE_INFINITY. Actual: ' + (Number.MAX_VALUE - -Number.MAX_VALUE)); |
| } |
| |
| //CHECK#2 |
| if (-Number.MAX_VALUE - Number.MAX_VALUE !== Number.NEGATIVE_INFINITY) { |
| throw new Test262Error('#2: -Number.MAX_VALUE - umber.MAX_VALUE === Number.NEGATIVE_INFINITY. Actual: ' + (-Number.MAX_VALUE - Number.MAX_VALUE)); |
| } |
| |
| //CHECK#3 |
| if (1e+308 - -1e+308 !== Number.POSITIVE_INFINITY) { |
| throw new Test262Error('#3: 1e+308 - -1e+308 === Number.POSITIVE_INFINITY. Actual: ' + (1e+308 - -1e+308)); |
| } |
| |
| //CHECK#4 |
| if (-8.99e+307 - 8.99e+307 !== Number.NEGATIVE_INFINITY) { |
| throw new Test262Error('#4: -8.99e+307 - 8.99e+307 === Number.NEGATIVE_INFINITY. Actual: ' + (-8.99e+307 - 8.99e+307)); |
| } |