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/*
Copyright 2012-2015, Yahoo Inc.
Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
*/
"use strict";
var InsertionText = require('./insertion-text'),
lt = '\u0001',
gt = '\u0002',
RE_LT = /</g,
RE_GT = />/g,
RE_AMP = /&/g,
RE_lt = /\u0001/g,
RE_gt = /\u0002/g;
function title(str) {
return ' title="' + str + '" ';
}
function customEscape(text) {
text = String(text);
return text.replace(RE_AMP, '&')
.replace(RE_LT, '<')
.replace(RE_GT, '>')
.replace(RE_lt, '<')
.replace(RE_gt, '>');
}
function annotateLines(fileCoverage, structuredText) {
var lineStats = fileCoverage.getLineCoverage();
if (!lineStats) {
return;
}
Object.keys(lineStats).forEach(function (lineNumber) {
var count = lineStats[lineNumber];
if (structuredText[lineNumber]) {
structuredText[lineNumber].covered = count > 0 ? 'yes' : 'no';
structuredText[lineNumber].hits = count;
}
});
}
function annotateStatements(fileCoverage, structuredText) {
var statementStats = fileCoverage.s,
statementMeta = fileCoverage.statementMap;
Object.keys(statementStats).forEach(function (stName) {
var count = statementStats[stName],
meta = statementMeta[stName],
type = count > 0 ? 'yes' : 'no',
startCol = meta.start.column,
endCol = meta.end.column + 1,
startLine = meta.start.line,
endLine = meta.end.line,
openSpan = lt + 'span class="' + (meta.skip ? 'cstat-skip' : 'cstat-no') + '"' + title('statement not covered') + gt,
closeSpan = lt + '/span' + gt,
text;
if (type === 'no' && structuredText[startLine]) {
if (endLine !== startLine) {
endCol = structuredText[startLine].text.originalLength();
}
text = structuredText[startLine].text;
text.wrap(startCol,
openSpan,
startCol < endCol ? endCol : text.originalLength(),
closeSpan);
}
});
}
function annotateFunctions(fileCoverage, structuredText) {
var fnStats = fileCoverage.f,
fnMeta = fileCoverage.fnMap;
if (!fnStats) {
return;
}
Object.keys(fnStats).forEach(function (fName) {
var count = fnStats[fName],
meta = fnMeta[fName],
type = count > 0 ? 'yes' : 'no',
startCol = meta.decl.start.column,
endCol = meta.decl.end.column + 1,
startLine = meta.decl.start.line,
endLine = meta.decl.end.line,
openSpan = lt + 'span class="' + (meta.skip ? 'fstat-skip' : 'fstat-no') + '"' + title('function not covered') + gt,
closeSpan = lt + '/span' + gt,
text;
if (type === 'no' && structuredText[startLine]) {
if (endLine !== startLine) {
endCol = structuredText[startLine].text.originalLength();
}
text = structuredText[startLine].text;
text.wrap(startCol,
openSpan,
startCol < endCol ? endCol : text.originalLength(),
closeSpan);
}
});
}
function annotateBranches(fileCoverage, structuredText) {
var branchStats = fileCoverage.b,
branchMeta = fileCoverage.branchMap;
if (!branchStats) {
return;
}
Object.keys(branchStats).forEach(function (branchName) {
var branchArray = branchStats[branchName],
sumCount = branchArray.reduce(function (p, n) {
return p + n;
}, 0),
metaArray = branchMeta[branchName].locations,
i,
count,
meta,
type,
startCol,
endCol,
startLine,
endLine,
openSpan,
closeSpan,
text;
// only highlight if partial branches are missing or if there is a
// single uncovered branch.
if (sumCount > 0 || (sumCount === 0 && branchArray.length === 1)) {
for (i = 0; i < branchArray.length && i < metaArray.length; i += 1) {
count = branchArray[i];
meta = metaArray[i];
type = count > 0 ? 'yes' : 'no';
startCol = meta.start.column;
endCol = meta.end.column + 1;
startLine = meta.start.line;
endLine = meta.end.line;
openSpan = lt + 'span class="branch-' + i + ' ' +
(meta.skip ? 'cbranch-skip' : 'cbranch-no') + '"'
+ title('branch not covered') + gt;
closeSpan = lt + '/span' + gt;
if (count === 0 && structuredText[startLine]) { //skip branches taken
if (endLine !== startLine) {
endCol = structuredText[startLine].text.originalLength();
}
text = structuredText[startLine].text;
if (branchMeta[branchName].type === 'if') {
// 'if' is a special case
// since the else branch might not be visible, being non-existent
text.insertAt(startCol, lt + 'span class="' +
(meta.skip ? 'skip-if-branch' : 'missing-if-branch') + '"' +
title((i === 0 ? 'if' : 'else') + ' path not taken') + gt +
(i === 0 ? 'I' : 'E') + lt + '/span' + gt, true, false);
} else {
text.wrap(startCol,
openSpan,
startCol < endCol ? endCol : text.originalLength(),
closeSpan);
}
}
}
}
});
}
function annotateSourceCode(fileCoverage, sourceStore) {
var codeArray,
lineCoverageArray;
try {
var sourceText = sourceStore.getSource(fileCoverage.path),
code = sourceText.split(/(?:\r?\n)|\r/),
count = 0,
structured = code.map(function (str) {
count += 1;
return {
line: count,
covered: 'neutral',
hits: 0,
text: new InsertionText(str, true)
};
});
structured.unshift({line: 0, covered: null, text: new InsertionText("")});
annotateLines(fileCoverage, structured);
//note: order is important, since statements typically result in spanning the whole line and doing branches late
//causes mismatched tags
annotateBranches(fileCoverage, structured);
annotateFunctions(fileCoverage, structured);
annotateStatements(fileCoverage, structured);
structured.shift();
codeArray = structured.map(function (item) {
return customEscape(item.text.toString()) || ' ';
});
lineCoverageArray = structured.map(function (item) {
return {
covered: item.covered,
hits: item.hits > 0 ? item.hits + 'x' : ' '
};
});
return {
annotatedCode: codeArray,
lineCoverage: lineCoverageArray,
maxLines: structured.length
};
} catch (ex) {
codeArray = [ ex.message ];
lineCoverageArray = [ { covered: 'no', hits: 0 } ];
String(ex.stack || '').split(/\r?\n/).forEach(function (line) {
codeArray.push(line);
lineCoverageArray.push({ covered: 'no', hits: 0 });
});
return {
annotatedCode: codeArray,
lineCoverage: lineCoverageArray,
maxLines: codeArray.length
};
}
}
module.exports = {
annotateSourceCode: annotateSourceCode
};
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