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ps.js
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define(function (require) { var tdd = require('intern!tdd'); // Not really Chai but a Chai-compatible "assert" library for old IE. var assert = require('intern/chai!assert'); // parse-srcset is an AMD module. var parseSrcset = require('../../src/parse-srcset'); var he = require('tests/he'); tdd.suite('Parse Srcset', function() { // Adapted from the W3C srcset conformance checker at: // http://w3c-test.org/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute.html var w3Ctests = [ { groupName: "Splitting Loop", testArray: [ {srcset: '', expect: '', desc: 'empty string'}, {srcset: ',' , expect: '', desc: 'single comma'}, {srcset: ',,,', expect: '', desc: 'three commas'}, {srcset: '		data:,a		1x		', expect: 'data:,a', desc: 'tabs'}, {srcset: '

data:,a

1x

', expect: 'data:,a', desc: 'line feeds'}, {srcset: 'data:,a1x', expect: 'data:,a1x', desc: 'line tab'}, {srcset: 'data:,a1x', expect: 'data:,a', desc: 'form feed U+000C'}, {srcset: '

data:,a

1x

', expect: 'data:,a', desc: 'carriage return U+000D'}, {srcset: 'data:,a1x', expect: 'data:,a1x', desc: 'shift out U+000E'}, {srcset: 'data:,a1x', expect: 'data:,a1x', desc: 'shift in U+000F' }, {srcset: 'data:,a1x', expect: 'data:,a1x', desc: 'data link escape U+0010' }, {srcset: 'data:,a', expect: 'data:,a', desc:'plain url'}, {srcset: 'data:,a ', expect: 'data:,a', desc:'trailing space'}, {srcset: 'data:,a ,', expect: 'data:,a', desc:'trailing space and comma'}, {srcset: 'data:,a,', expect: 'data:,a', desc:'trailing comma'}, {srcset: 'data:,a, ', expect: 'data:,a', desc:'trailing comma and space'}, {srcset: 'data:,a,,,', expect: 'data:,a', desc:'trailing three commas'}, {srcset: 'data:,a,, , ', expect: 'data:,a', desc:'trailing two commas space comma space'}, {srcset: ' data:,a', expect: 'data:,a', desc:'leading space'}, {srcset: ',,,data:,a', expect: 'data:,a', desc:'leading three commas'}, {srcset: ' , ,,data:,a', expect: 'data:,a', desc:'leading space comma space comma comma'}, {srcset: ' data:,a', expect: ' data:,a', desc:'leading non-breaking space'}, {srcset: 'data:,a ', expect: 'data:,a ', desc:'trailing non-breaking space'} ] }, { groupName: "Descriptor Tokenizer", testArray: [ {srcset: 'data:,a 1x', expect: 'data:,a', desc: 'plain url with descriptor'}, {srcset: 'data:,a 1x ', expect: 'data:,a', desc: 'trailing space'}, {srcset: 'data:,a 1x,', expect: 'data:,a', desc: 'trailing comma'}, {srcset: 'data:,a ( , data:,b 1x, ), data:,c', expect: 'data:,c', desc: 'irregular parens 1'}, {srcset: 'data:,a ((( , data:,b 1x, ), data:,c', expect: 'data:,c', desc: 'irregular parens 2'}, {srcset: 'data:,a [ , data:,b 1x, ], data:,c', expect: 'data:,b', desc: 'brackets'}, {srcset: 'data:,a { , data:,b 1x, }, data:,c', expect: 'data:,b', desc: 'braces'}, {srcset: 'data:,a " , data:,b 1x, ", data:,c', expect: 'data:,b', desc: 'double quotes'}, {srcset: 'data:,a \\,data:;\\,b, data:,c', expect: 'data:;\\,b', desc: 'backslashes'}, {srcset: 'data:,a, data:,b (', expect: 'data:,a', desc: 'trailing unclosed paren'}, {srcset: 'data:,a, data:,b ( ', expect: 'data:,a', desc: 'unclosed paren space'}, {srcset: 'data:,a, data:,b (,', expect: 'data:,a', desc: 'unclosed paren comma'}, {srcset: 'data:,a, data:,b (x', expect: 'data:,a', desc: 'unclosed paren x'}, {srcset: 'data:,a, data:,b ()', expect: 'data:,a', desc: 'parens, no descriptor'}, {srcset: 'data:,a (, data:,b', expect: '', desc: 'unclosed paren'}, {srcset: 'data:,a /*, data:,b, data:,c */', expect: 'data:,b', desc: 'block comments'}, {srcset: 'data:,a //, data:,b', expect: 'data:,b', desc: 'double slash like a comment'} ] }, { groupName: "Descriptor Parser", testArray : [ {srcset: 'data:,a foo', expect: '', desc: 'trailing foo'}, {srcset: 'data:,a foo foo', expect: '', desc: 'trailing foo foo'}, {srcset: 'data:,a foo 1x', expect: '', desc: 'trailing foo 1x'}, {srcset: 'data:,a foo 1x foo', expect: '', desc: 'trailing 1x foo'}, {srcset: 'data:,a foo 1w', expect: '', desc: 'trailing foo 1w'}, {srcset: 'data:,a foo 1w foo', expect: '', desc: 'trailing foo 1w foo'}, {srcset: 'data:,a 1x 1x', expect: '', desc: 'two density descriptors'}, {srcset: 'data:,a 1w 1w', expect: '', desc: 'two width descriptors'}, {srcset: 'data:,a 1h 1h', expect: '', desc: 'two height descriptors'}, {srcset: 'data:,a 1w 1x', expect: '', desc: 'width then density'}, {srcset: 'data:,a 1x 1w', expect: '', desc: 'density then width'}, {srcset: 'data:,a 1w 1h', expect: 'data:,a', desc: 'width then height'}, {srcset: 'data:,a 1h 1w', expect: 'data:,a', desc: 'height then width'}, {srcset: 'data:,a 1h 1x', expect: '', desc: 'height then density'}, {srcset: 'data:,a 1h 1w 1x', expect: '', desc: 'height then width then density'}, {srcset: 'data:,a 1x 1w 1h', expect: '', desc: 'density then width then height'}, {srcset: 'data:,a 1h foo', expect: '', desc: 'trailing 1h foo'}, {srcset: 'data:,a foo 1h', expect: '', desc: 'trailing foo 1h'}, {srcset: 'data:,a 0w', expect: '', desc: 'zero width'}, {srcset: 'data:,a -1w', expect: '', desc: 'negative width'}, {srcset: 'data:,a 1w -1w', expect: '', desc: 'positive width, negative width'}, {srcset: 'data:,a 1.0w', expect: '', desc: 'floating point width'}, {srcset: 'data:,a 1w 1.0w', expect: '', desc: 'integer width, floating point width'}, {srcset: 'data:,a 1e0w', expect: '', desc: 'exponent width'}, {srcset: 'data:,a 1w 1e0w', expect: '', desc: 'integer width, exponent width'}, {srcset: 'data:,a 1www', expect: '', desc: '1www'}, {srcset: 'data:,a 1w 1www', expect: '', desc: '1w 1www'}, {srcset: 'data:,a 1w +1w', expect: '', desc: '1w +1w'}, {srcset: 'data:,a 1W', expect: '', desc: 'capital W descriptor'}, {srcset: 'data:,a 1w 1W', expect: '', desc: 'lowercase w, capital W descriptors'}, {srcset: 'data:,a Infinityw', expect: '', desc: 'Infinityw'}, {srcset: 'data:,a 1w Infinityw', expect: '', desc: '1w Infinityw'}, {srcset: 'data:,a NaNw', expect: '', desc: 'Nanw'}, {srcset: 'data:,a 1w NaNw', expect: '', desc: '1w Nanw'}, {srcset: 'data:,a 0x1w', expect: '', desc: 'ox1w'}, {srcset: 'data:,a 1w', expect: '', desc: 'trailing U+0001'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+00A0'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+1680'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2000'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2001'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2002'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2003'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2004'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2005'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2006'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2007'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2008'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+2009'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+200A'}, {srcset: 'data:,a 1‌w', expect: '', desc: 'trailing U+200C'}, {srcset: 'data:,a 1‍w', expect: '', desc: 'trailing U+200D'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+202F'}, {srcset: 'data:,a 1 w', expect: '', desc: 'trailing U+205F'}, {srcset: 'data:,a 1　w', expect: '', desc: 'trailing U+3000'}, {srcset: 'data:,a 1w', expect: '', desc: 'trailing U+FEFF'}, {srcset: 'data:,a 1w' , expect: '', desc: 'leading U+0001'}, // {srcset: 'data:,a 1w' , expect: '', desc: 'leading U+00A0 width'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+1680'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2000'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2001'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2002'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2003'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2004'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2005'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2006'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2007'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2008'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+2009'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+200A'}, {srcset: 'data:,a ‌1w', expect: '', desc: 'leading U+200C'}, {srcset: 'data:,a ‍1w', expect: '', desc: 'leading U+200D'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+202F'}, {srcset: 'data:,a  1w', expect: '', desc: 'leading U+205F'}, {srcset: 'data:,a 　1w', expect: '', desc: 'leading U+3000'}, {srcset: 'data:,a 1w', expect: '', desc: 'leading U+FEFF'}, {srcset: 'data:,a 0x', expect: 'data:,a', desc: 'zero density'}, {srcset: 'data:,a -0x' , expect: 'data:,a', desc: 'negative zero density'}, {srcset: 'data:,a 1x -0x', expect: '', desc: '1x -0x'}, {srcset: 'data:,a -1x', expect: '', desc: '-1x'}, {srcset: 'data:,a 1x -1x', expect: '', desc: '1x -1x'}, {srcset: 'data:,a 1e0x', expect: 'data:,a', desc: '1e0x'}, {srcset: 'data:,a 1E0x', expect: 'data:,a', desc: '1E0x'}, {srcset: 'data:,a 1e-1x', expect: 'data:,a', desc: '1e-1x'}, {srcset: 'data:,a 1.5e1x', expect: 'data:,a', desc: '1.5e1x'}, {srcset: 'data:,a -x', expect: '', desc: 'negative density with no digits'}, {srcset: 'data:,a .x', expect: '', desc: 'decimal density with no digits'}, {srcset: 'data:,a -.x', expect: '', desc: '-.x'}, {srcset: 'data:,a 1.x', expect: '', desc: '1.x'}, {srcset: 'data:,a .5x', expect: 'data:,a', desc: 'floating point density descriptor'}, {srcset: 'data:,a .5e1x', expect: 'data:,a', desc: '.5e1x'}, {srcset: 'data:,a 1x 1.5e1x', expect: '', desc: '1x 1.5e1x'}, {srcset: 'data:,a 1x 1e1.5x', expect: '', desc: '1x 1e1.5x'}, {srcset: 'data:,a 1.0x', expect: 'data:,a', desc: '1.0x'}, {srcset: 'data:,a 1x 1.0x', expect: '', desc: '1x 1.0x'}, {srcset: 'data:,a +1x', expect: '', desc: 'no plus sign allowed on floating point number'}, {srcset: 'data:,a 1X', expect: '', desc: 'Capital X descriptor'}, {srcset: 'data:,a Infinityx', expect: '', desc: 'Infinityx'}, {srcset: 'data:,a NaNx', expect: '', desc: 'NaNx'}, {srcset: 'data:,a 0x1x', expect: '', desc: '0X1x'}, {srcset: 'data:,a 0X1x', expect: '', desc: '1x'}, {srcset: 'data:,a 1x', expect: '', desc: 'trailing U+0001'}, {srcset: 'data:,a 1 x' , expect: '', desc: 'trailing U+00A0 density'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+1680'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2000'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2001'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2002'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2003'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2004'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2005'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2006'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2007'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2008'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+2009'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+200A'}, {srcset: 'data:,a 1‌x', expect: '', desc: 'trailing U+200C'}, {srcset: 'data:,a 1‍x', expect: '', desc: 'trailing U+200D'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+202F'}, {srcset: 'data:,a 1 x', expect: '', desc: 'trailing U+205F'}, {srcset: 'data:,a 1　x', expect: '', desc: 'trailing U+3000'}, {srcset: 'data:,a 1x', expect: '', desc: 'trailing U+FEFF'}, {srcset: 'data:,a 1x' , expect: '', desc: 'leading U+0001'}, {srcset: 'data:,a 1x' , expect: '', desc: 'leading U+00A0 density'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+1680'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2000'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2001'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2002'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2003'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2004'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2005'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2006'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2007'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2008'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+2009'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+200A'}, {srcset: 'data:,a ‌1x', expect: '', desc: 'leading U+200C'}, {srcset: 'data:,a ‍1x', expect: '', desc: 'leading U+200D'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+202F'}, {srcset: 'data:,a  1x', expect: '', desc: 'leading U+205F'}, {srcset: 'data:,a 　1x', expect: '', desc: 'leading U+3000'}, {srcset: 'data:,a 1x', expect: '', desc: 'leading U+FEFF'}, {srcset: 'data:,a 1w 0h', expect: '', desc: '1w 0h'}, {srcset: 'data:,a 1w -1h', expect: '', desc: '1w -1h'}, {srcset: 'data:,a 1w 1.0h', expect: '', desc: '1w 1.0h'}, {srcset: 'data:,a 1w 1e0h', expect: '', desc: '1w 1e0h'}, {srcset: 'data:,a 1w 1hhh', expect: '', desc: '1w 1hhh'}, {srcset: 'data:,a 1w 1H', expect: '', desc: '1w 1H'}, {srcset: 'data:,a 1w Infinityh', expect: '', desc: '1w Infinityh'}, {srcset: 'data:,a 1w NaNh', expect: '', desc: '1w NaNh'}, {srcset: 'data:,a 0x1h', expect: '', desc: '0x1h'}, {srcset: 'data:,a 0X1h', expect: '', desc: '0X1h'}, {srcset: 'data:,a 1w 1h', expect: '', desc: 'trailing U+0001'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+00A0'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+1680'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2000'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2001'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2002'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2003'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2004'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2005'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2006'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2007'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2008'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+2009'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+200A'}, {srcset: 'data:,a 1w 1‌h', expect: '', desc: 'trailing U+200C'}, {srcset: 'data:,a 1w 1‍h', expect: '', desc: 'trailing U+200D'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+202F'}, {srcset: 'data:,a 1w 1 h', expect: '', desc: 'trailing U+205F'}, {srcset: 'data:,a 1w 1　h', expect: '', desc: 'trailing U+3000'}, {srcset: 'data:,a 1w 1h', expect: '', desc: 'trailing U+FEFF'}, {srcset: 'data:,a 1w 1h', expect: '', desc: 'leading U+0001'}, {srcset: 'data:,a 1w 1h', expect: '', desc: 'leading U+00A0'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+1680'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2000'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2001'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2002'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2003'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2004'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2005'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2006'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2007'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2008'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+2009'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+200A'}, {srcset: 'data:,a 1w ‌1h', expect: '', desc: 'leading U+200C'}, {srcset: 'data:,a 1w ‍1h', expect: '', desc: 'leading U+200D'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+202F'}, {srcset: 'data:,a 1w  1h', expect: '', desc: 'leading U+205F'}, {srcset: 'data:,a 1w 　1h', expect: '', desc: 'leading U+3000'}, {srcset: 'data:,a 1w 1h', expect: '', desc: 'leading U+FEFF'} ] } ]; // HTML Entities are much easier to troubleshoot in console. he.encode.options.useNamedReferences = true; function runTest(test) { var origAttr = test.srcset; var attrDecoded = he.decode(origAttr); var parsed = parseSrcset(attrDecoded); var firstCandidate = parsed[0]; var url = ""; var encodedUrl = ""; if (firstCandidate) { url = firstCandidate.url; } // Must re-encode url prior to comparison with expected string. if (url) { encodedUrl = he.encode(url); } console.log(""); console.log(test.desc); console.log("origAttr: '" + origAttr + "'"); console.log("attrDecoded: '" + attrDecoded + "'"); console.log("parsed: ", parsed); console.log("url: '" + url + "'"); console.log("encodedUrl: '" + encodedUrl + "'"); tdd.test( test.desc , function() { assert.strictEqual(encodedUrl, test.expect, "passed" ); }); } function runTestGroup(testGroup) { var j; var testArray = testGroup.testArray; // Group Tests tdd.suite(testGroup.groupName, function() { for (j = 0; j < testArray.length; j++) { runTest(testArray[j]); } }); } var i; var w3CtestsLength = w3Ctests.length; for (i = 0; i < w3CtestsLength; i++) { runTestGroup(w3Ctests[i]); } // tdd.test('First Test', function () { // var parsed = parseSrcset('data:,a 1x'); // var url = parsed[0].url; // // console.log("parsed: ", parsed); // console.log("url: ", url); // // assert.strictEqual(parsed, parsed, 'should be'); // // // assert.strictEqual(url, 'data:,a', 'should be'); // }); // assert.strictEqual(parseSrcset('data:,a 1x')[0], 'data:,a', 'plain url with descriptor'); // tdd.test('Second Test', function () { // assert.strictEqual(5, 5, '5 is itself, right?'); // }); }); });