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.DS_Store | ||
coverage | ||
.nyc_output | ||
node_modules | ||
package-lock.json |
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Copyright (c) 2017, Contributors | ||
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Permission to use, copy, modify, and/or distribute this software | ||
for any purpose with or without fee is hereby granted, provided | ||
that the above copyright notice and this permission notice | ||
appear in all copies. | ||
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES | ||
OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE | ||
LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES | ||
OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | ||
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | ||
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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# v8-to-istanbul | ||
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converts from v8 coverage format to [istanbul's coverage format](https://github.com/gotwarlost/istanbul/blob/master/coverage.json.md). |
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const Script = require('./lib/script') | ||
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module.exports = function (path) { | ||
return new Script(path) | ||
} |
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module.exports = class CovBranch { | ||
constructor (startLine, startCol, endLine, endCol, count) { | ||
this.startLine = startLine | ||
this.startCol = startCol | ||
this.endLine = endLine | ||
this.endCol = endCol | ||
this.count = count | ||
} | ||
toIstanbul () { | ||
const location = { | ||
start: { | ||
line: this.startLine.line, | ||
column: this.startCol - this.startLine.startCol | ||
}, | ||
end: { | ||
line: this.endLine.line, | ||
column: this.endCol - this.endLine.startCol | ||
} | ||
} | ||
return { | ||
type: 'branch', | ||
line: this.line, | ||
loc: location, | ||
locations: [Object.assign({}, location)] | ||
} | ||
} | ||
} |
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module.exports = class CovFunction { | ||
constructor (name, startLine, startCol, endLine, endCol, count) { | ||
this.name = name | ||
this.startLine = startLine | ||
this.startCol = startCol | ||
this.endLine = endLine | ||
this.endCol = endCol | ||
this.count = count | ||
} | ||
toIstanbul () { | ||
const loc = { | ||
start: { | ||
line: this.startLine.line, | ||
column: this.startCol - this.startLine.startCol | ||
}, | ||
end: { | ||
line: this.endLine.line, | ||
column: this.endCol - this.endLine.startCol | ||
} | ||
} | ||
return { | ||
name: this.name, | ||
decl: loc, | ||
loc: loc, | ||
line: this.startLine.line | ||
} | ||
} | ||
} |
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module.exports = class CovLine { | ||
constructor (line, startCol, endCol) { | ||
this.line = line | ||
this.startCol = startCol | ||
this.endCol = endCol | ||
this.count = 0 | ||
} | ||
toIstanbul () { | ||
return { | ||
start: { | ||
line: this.line, | ||
column: 0 | ||
}, | ||
end: { | ||
line: this.line, | ||
column: this.endCol - this.startCol | ||
} | ||
} | ||
} | ||
} |
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const fs = require('fs') | ||
const CovBranch = require('./branch') | ||
const CovLine = require('./line') | ||
const CovFunction = require('./function') | ||
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// Node.js injects a header when executing a script. | ||
const header = '(function (exports, require, module, __filename, __dirname) { ' | ||
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module.exports = class CovScript { | ||
constructor (scriptPath) { | ||
const source = fs.readFileSync(scriptPath, 'utf8') | ||
this.path = scriptPath | ||
this.lines = [] | ||
this.branches = [] | ||
this.functions = [] | ||
this.eof = -1 | ||
this._buildLines(source, this.lines) | ||
} | ||
_buildLines (source, lines) { | ||
let position = 0 | ||
source.split('\n').forEach((lineStr, i) => { | ||
this.eof = position + lineStr.length | ||
lines.push(new CovLine(i + 1, position, this.eof)) | ||
position += lineStr.length + 1 // also add the \n. | ||
}) | ||
} | ||
applyCoverage (blocks) { | ||
blocks.forEach(block => { | ||
block.ranges.forEach(range => { | ||
const startCol = Math.max(0, range.startOffset - header.length) | ||
const endCol = Math.min(this.eof, range.endOffset - header.length) | ||
const lines = this.lines.filter(line => { | ||
return startCol <= line.endCol && endCol >= line.startCol | ||
}) | ||
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if (block.isBlockCoverage && lines.length) { | ||
// record branches. | ||
this.branches.push(new CovBranch( | ||
lines[0], | ||
startCol, | ||
lines[lines.length - 1], | ||
endCol, | ||
range.count | ||
)) | ||
} else if (block.functionName && lines.length) { | ||
// record functions. | ||
this.functions.push(new CovFunction( | ||
block.functionName, | ||
lines[0], | ||
startCol, | ||
lines[lines.length - 1], | ||
endCol, | ||
range.count | ||
)) | ||
} | ||
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// record the lines (we record these as statements, such that we're | ||
// compatible with Istanbul 2.0). | ||
lines.forEach(line => { | ||
// make sure branch spans entire line; don't record 'goodbye' | ||
// branch in `const foo = true ? 'hello' : 'goodbye'` as a | ||
// 0 for line coverage. | ||
if (startCol <= line.startCol && endCol >= line.endCol) { | ||
line.count = range.count | ||
} | ||
}) | ||
}) | ||
}) | ||
} | ||
toIstanbul () { | ||
const istanbulInner = Object.assign( | ||
{path: this.path}, | ||
this._statementsToIstanbul(), | ||
this._branchesToIstanbul(), | ||
this._functionsToIstanbul() | ||
) | ||
const istanbulOuter = {} | ||
istanbulOuter[this.path] = istanbulInner | ||
return istanbulOuter | ||
} | ||
_statementsToIstanbul () { | ||
const statements = { | ||
statementMap: {}, | ||
s: {} | ||
} | ||
this.lines.forEach((line, index) => { | ||
statements.statementMap[`${index}`] = line.toIstanbul() | ||
statements.s[`${index}`] = line.count | ||
}) | ||
return statements | ||
} | ||
_branchesToIstanbul () { | ||
const branches = { | ||
branchMap: {}, | ||
b: {} | ||
} | ||
this.branches.forEach((branch, index) => { | ||
branches.branchMap[`${index}`] = branch.toIstanbul() | ||
branches.b[`${index}`] = [branch.count] | ||
}) | ||
return branches | ||
} | ||
_functionsToIstanbul () { | ||
const functions = { | ||
fnMap: {}, | ||
f: {} | ||
} | ||
this.functions.forEach((fn, index) => { | ||
functions.fnMap[`${index}`] = fn.toIstanbul() | ||
functions.f[`${index}`] = fn.count | ||
}) | ||
return functions | ||
} | ||
} |
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{ | ||
"name": "v8-to-istanbul", | ||
"version": "1.0.0", | ||
"description": "convert from v8 coverage format to istanbul's format", | ||
"main": "index.js", | ||
"scripts": { | ||
"test": "nyc mocha test/*.js", | ||
"posttest": "standard" | ||
}, | ||
"repository": { | ||
"url": "git@github.com:bcoe/v8-to-istanbul.git" | ||
}, | ||
"keywords": [ | ||
"istanbul", | ||
"v8", | ||
"coverage" | ||
], | ||
"standard": { | ||
"ignore": [ | ||
"**/test/fixtures" | ||
] | ||
}, | ||
"author": "Ben Coe <ben@npmjs.com>", | ||
"license": "ISC", | ||
"devDependencies": { | ||
"chai": "^4.1.2", | ||
"mocha": "^4.0.1", | ||
"nyc": "^11.3.0", | ||
"standard": "^10.0.3" | ||
} | ||
} |
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