76 lines
2.7 KiB
JavaScript
76 lines
2.7 KiB
JavaScript
var helper = require("./helper.js"),
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doc = helper.getFile("W3C_Selectors.html"),
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CSSselect = helper.CSSselect,
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soupselect = require("cheerio-soupselect"),
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selectors = ["body", "div", "body div", "div p", "div > p", "div + p", "div ~ p", "div[class^=exa][class$=mple]", "div p a", "div, p, a", ".note", "div.example", "ul .tocline2", "div.example, div.note", "#title", "h1#title", "div #title", "ul.toc li.tocline2", "ul.toc > li.tocline2", "h1#title + div > p", "h1[id]:contains(Selectors)", "a[href][lang][class]", "div[class]", "div[class=example]", "div[class^=exa]", "div[class$=mple]", "div[class*=e]", "div[class|=dialog]", "div[class!=made_up]", "div[class~=example]"/*, "div:not(.example)", "p:contains(selectors)", "p:nth-child(even)", "p:nth-child(2n)", "p:nth-child(odd)", "p:nth-child(2n+1)", "p:nth-child(n)", "p:only-child", "p:last-child", "p:first-child"*/];
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var engines = [function(a,b){return CSSselect(b,a);}, soupselect.select];
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//returns true when an error occurs
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function testResult(rule, index){
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var results = engines
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.map(function(func){ return func(doc, rule); });
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//check if both had the same result
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for(var i = 1; i < results.length; i++){
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//TODO: might be hard to debug with more engines
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if(results[i-1].length !== results[i].length){
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//console.log(rule, results[i-1].length, results[i].length);
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return true;
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}
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for(var j = 0; j < results[i].length; j++){
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if(results[i-1][j] !== results[i][j]){
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if(results[i-1].indexOf(results[i][j]) === -1){
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return true;
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}
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}
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}
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//require("assert").deepEqual(results[i-1], results[i], rule + ": not the same elements");
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}
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return false;
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}
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selectors.filter(testResult).forEach(function(rule){ print(rule, "failed!\n"); });
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process.exit(0); //don't run speed tests
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print("-----\n\nChecking performance\n\n");
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//test the speed
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var ben = require("ben");
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function testSpeed(rule){
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print(rule, Array(28-rule.length).join(" "));
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var results = engines
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.map(function(func){ return function(){ return func(doc, rule); }});
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//also add a precompiled CSSselect test
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var compiled = CSSselect(rule);
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results.unshift(function(){ return CSSselect.iterate(compiled, doc); });
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results = results.map(ben);
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var min = Math.min.apply(null, results);
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var max = Math.max.apply(null, results);
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results.forEach(function(result){
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if(result === min) return print(" +", result, "+");
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if(result === max) return print(" !", result, "!");
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if(Math.abs(result-min) > Math.abs(result-max)){
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return print(" =", result, "=");
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}
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print(" ~", result, "~");
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});
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print("\n");
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}
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print("RULE ", "CSSselect (pc)", "CSSselect", "soupselect\n");
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selectors.forEach(testSpeed);
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function print(){
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process.stdout.write(Array.prototype.join.call(arguments, " "));
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} |