| // 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 returns ToNumber(x) - ToNumber(y) |
| es5id: 11.6.2_A3_T1.4 |
| description: Type(x) and Type(y) vary between Null and Undefined |
| ---*/ |
| |
| //CHECK#1 |
| if (isNaN(null - undefined) !== true) { |
| $ERROR('#1: null - undefined === Not-a-Number. Actual: ' + (null - undefined)); |
| } |
| |
| //CHECK#2 |
| if (isNaN(undefined - null) !== true) { |
| $ERROR('#2: undefined - null === Not-a-Number. Actual: ' + (undefined - null)); |
| } |
| |
| //CHECK#3 |
| if (isNaN(undefined - undefined) !== true) { |
| $ERROR('#3: undefined - undefined === Not-a-Number. Actual: ' + (undefined - undefined)); |
| } |
| |
| //CHECK#4 |
| if (null - null !== 0) { |
| $ERROR('#4: null - null === 0. Actual: ' + (null - null)); |
| } |