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1 // Copyright 2009 the Sputnik authors. All rights reserved. |
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2 // This code is governed by the BSD license found in the LICENSE file. |
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3 |
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4 /** |
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5 * The production x -= y is the same as x = x - y |
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6 * |
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7 * @path ch11/11.13/11.13.2/S11.13.2_A4.5_T2.8.js |
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8 * @description Type(x) is different from Type(y) and both types vary between Boolean (primitive or object) and Undefined |
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9 */ |
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10 |
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11 //CHECK#1 |
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12 x = true; |
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13 x -= undefined; |
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14 if (isNaN(x) !== true) { |
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15 $ERROR('#1: x = true; x -= undefined; x === Not-a-Number. Actual: ' + (x)); |
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16 } |
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17 |
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18 //CHECK#2 |
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19 x = undefined; |
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20 x -= true; |
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21 if (isNaN(x) !== true) { |
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22 $ERROR('#2: x = undefined; x -= true; x === Not-a-Number. Actual: ' + (x)); |
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23 } |
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24 |
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25 //CHECK#3 |
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26 x = new Boolean(true); |
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27 x -= undefined; |
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28 if (isNaN(x) !== true) { |
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29 $ERROR('#3: x = new Boolean(true); x -= undefined; x === Not-a-Number. Actual: ' + (x)); |
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30 } |
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31 |
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32 //CHECK#4 |
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33 x = undefined; |
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34 x -= new Boolean(true); |
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35 if (isNaN(x) !== true) { |
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36 $ERROR('#4: x = undefined; x -= new Boolean(true); x === Not-a-Number. Actual: ' + (x)); |
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37 } |
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38 |