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140 lines
3.1 KiB
JavaScript
140 lines
3.1 KiB
JavaScript
/*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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* DO NOT EDIT THIS FILE
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* For FCC testing purposes!
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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function objParser(str, init) {
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// finds objects, arrays, strings, and function arguments
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// between parens, because they may contain ','
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let openSym = ['[', '{', '"', "'", '('];
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let closeSym = [']', '}', '"', "'", ')'];
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let type;
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let i;
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for(i = (init || 0); i < str.length; i++ ) {
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type = openSym.indexOf(str[i]);
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if( type !== -1) break;
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}
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if (type === -1) return null;
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let open = openSym[type];
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let close = closeSym[type];
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let count = 1;
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let k;
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for(k = i+1; k < str.length; k++) {
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if(open === '"' || open === "'") {
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if(str[k] === close) count--;
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if(str[k] === '\\') k++;
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} else {
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if(str[k] === open) count++;
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if(str[k] === close) count--;
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}
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if(count === 0) break;
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}
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if(count !== 0) return null;
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let obj = str.slice(i, k+1);
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return {
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start : i,
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end: k,
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obj: obj
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};
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}
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function replacer(str) {
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// replace objects with a symbol ( __#n)
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let obj;
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let cnt = 0;
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let data = [];
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while(obj = objParser(str)) {
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data[cnt] = obj.obj;
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str = str.substring(0, obj.start) + '__#' + cnt++ + str.substring(obj.end+1)
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}
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return {
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str : str,
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dictionary : data
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}
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}
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function splitter(str) {
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// split on commas, then restore the objects
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let strObj = replacer(str);
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let args = strObj.str.split(',');
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args = args.map(function(a){
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let m = a.match(/__#(\d+)/);
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while (m) {
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a = a.replace(/__#(\d+)/, strObj.dictionary[m[1]]);
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m = a.match(/__#(\d+)/);
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}
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return a.trim();
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})
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return args;
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}
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function assertionAnalyser(body) {
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// already filtered in the test runner
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// // remove comments
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// body = body.replace(/\/\/.*\n|\/\*.*\*\//g, '');
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// // get test function body
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// body = body.match(/\{\s*([\s\S]*)\}\s*$/)[1];
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if(!body) return "invalid assertion";
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// replace assertions bodies, so that they cannot
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// contain the word 'assertion'
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let cleanedBody = body.match(/(?:browser\s*\.\s*)?assert\s*\.\s*\w*\([\s\S]*\)/)
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if(cleanedBody && Array.isArray(cleanedBody)) {
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body = cleanedBody[0];
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} else {
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// No assertions present
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return [];
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}
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let s = replacer(body);
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// split on 'assertion'
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let splittedAssertions = s.str.split('assert');
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let assertions = splittedAssertions.slice(1);
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// match the METHODS
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let assertionBodies = [];
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let methods = assertions.map(function(a, i){
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let m = a.match(/^\s*\.\s*(\w+)__#(\d+)/);
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assertionBodies.push(parseInt(m[2]));
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let pre = splittedAssertions[i].match(/browser\s*\.\s*/) ? 'browser.' : '';
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return pre + m[1];
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});
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if(methods.some(function(m){ return !m })) return "invalid assertion";
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// remove parens from the assertions bodies
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let bodies = assertionBodies.map(function(b){
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return s.dictionary[b].slice(1,-1).trim();
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});
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assertions = methods.map(function(m, i) {
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return {
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method: m,
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args: splitter(bodies[i]) //replace objects, split on ',' ,then restore objects
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}
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})
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return assertions;
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}
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module.exports = assertionAnalyser;
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