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| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <body> | |
| 4 <script src="../resources/magnitude-perf.js"></script> | |
| 5 <script> | |
| 6 var parentForm = null; | |
| 7 | |
| 8 // FIXME(nbarth): this is O(n^2) | |
| 9 // Adding a radio button is O(n), which is what this test is testing, | |
| 10 // so building a group 1 button at a time is O(n^2) | |
| 11 // Set innerHTML directly instead | |
| 12 function setup(magnitude) { | |
| 13 if (parentForm) | |
| 14 document.body.removeChild(parentForm); | |
| 15 parentForm = document.createElement('form'); | |
| 16 document.body.appendChild(parentForm); | |
| 17 for (var i = 0; i < magnitude; ++i) { | |
| 18 var radio = document.createElement('input'); | |
| 19 radio.type = 'radio'; | |
| 20 radio.name = 'group1'; | |
| 21 radio.checked = true; | |
| 22 parentForm.appendChild(radio); | |
| 23 } | |
| 24 parentForm.offsetLeft; | |
| 25 } | |
| 26 | |
| 27 function test(magnitude) { | |
| 28 var radio = document.createElement('input'); | |
| 29 radio.type = 'radio'; | |
| 30 radio.name = 'group1'; | |
| 31 radio.checked = true; | |
| 32 parentForm.appendChild(radio); | |
| 33 radio.offsetLeft; | |
| 34 parentForm.removeChild(radio); | |
| 35 } | |
| 36 | |
| 37 Magnitude.description("Tests that adding a radio button to a radio button group
is linear in the number of radio buttons."); | |
| 38 Magnitude.initialExponent = 12; | |
| 39 // dominated by constant and log term for small n | |
| 40 Magnitude.numPoints = 3; | |
| 41 Magnitude.tolerance = 0.30; | |
| 42 Magnitude.run(setup, test, Magnitude.LINEAR); | |
| 43 </script> | |
| 44 </body> | |
| 45 </html> | |
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