| // 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_T1 |
| description: If either operand is NaN, the result is NaN |
| ---*/ |
| |
| //CHECK#1 |
| if (isNaN(Number.NaN - 1) !== true ) { |
| $ERROR('#1: NaN - 1 === Not-a-Number. Actual: ' + (NaN - 1)); |
| } |
| |
| //CHECK#2 |
| if (isNaN(1 - Number.NaN) !== true ) { |
| $ERROR('#2: 1 - NaN === Not-a-Number. Actual: ' + (1 - NaN)); |
| } |
| |
| //CHECK#3 |
| if (isNaN(Number.NaN - Number.POSITIVE_INFINITY) !== true ) { |
| $ERROR('#3: NaN - Infinity === Not-a-Number. Actual: ' + (NaN - Infinity)); |
| } |
| |
| //CHECK#4 |
| if (isNaN(Number.POSITIVE_INFINITY - Number.NaN) !== true ) { |
| $ERROR('#4: Infinity - NaN === Not-a-Number. Actual: ' + (Infinity - NaN)); |
| } |
| |
| //CHECK#5 |
| if (isNaN(Number.NaN - Number.NEGATIVE_INFINITY) !== true ) { |
| $ERROR('#5: NaN - Infinity === Not-a-Number. Actual: ' + (NaN - Infinity)); |
| } |
| |
| //CHECK#6 |
| if (isNaN(Number.NEGATIVE_INFINITY - Number.NaN) !== true ) { |
| $ERROR('#6: Infinity - NaN === Not-a-Number. Actual: ' + (Infinity - NaN)); |
| } |