Created
November 14, 2008 13:17
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var Feature = (function() { | |
var tests = { | |
DOCUMENT_GETELEMENTBYID_CONFUSES_IDS_WITH_NAMES: function() { | |
// need to feature test all these DOM methods before calling them | |
var num = Number(new Date()), | |
name = '__test_' + num, | |
head = document.getElementsByTagName('head')[0], | |
isBuggy = false, | |
el; | |
try { | |
el = document.createElement('<input name="'+ name +'">'); | |
} catch(e) { | |
el = document.createElement('input'); | |
el.name = name; | |
} | |
head.appendChild(el); | |
var testElement = document.getElementById(name); | |
isBuggy = !!(testElement && (testElement.nodeName.toUpperCase() === 'INPUT')); | |
head.removeChild(el); | |
el = null; | |
return isBuggy; | |
}, | |
NEWLINES_IGNORED_AS_INNERHTML_OF_PRE_ELEMENT: function(){ | |
var element = document.createElement('pre'), | |
isIgnored = false; | |
if (element) { | |
element.innerHTML = 'a\nb'; | |
isIgnored = (element.innerHTML.charAt(1) !== '\n'); | |
element = null; | |
} | |
return isIgnored; | |
}, | |
STRING_PROTOTYPE_REPLACE_IGNORES_FUNCTIONS: function() { | |
return 'a'.replace('a', function(){ return '' }).length !== 0; | |
}, | |
IS_TAGNAME_UPPERCASED: function() { | |
return /[A-Z]/.test(document.documentElement.tagName); | |
} | |
// etc. sections, documentation... | |
}; | |
// make sure tests run only once | |
Object.keys(tests)._each(function(test) { | |
tests[test] = tests[test].wrap(function(proceed) { | |
var result = proceed(); | |
tests[test] = function() { return result }; | |
return result; | |
}); | |
}); | |
function test(name) { | |
return tests[name](); | |
} | |
return { | |
tests: tests, // could leave this out | |
test: test | |
}; | |
})(); |
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