1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
/*
Copyright (c) 2012, Yahoo! Inc. All rights reserved.
Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
*/
var path = require('path'),
Writer = require('../util/file-writer'),
util = require('util'),
Report = require('./index');
/**
* a `Report` implementation that produces a coverage JSON object.
*
* Usage
* -----
*
* var report = require('istanbul').Report.create('json');
*
*
* @class JsonReport
* @extends Report
* @module report
* @constructor
* @param {Object} opts optional
* @param {String} [opts.dir] the directory in which to write the `coverage-final.json` file. Defaults to `process.cwd()`
*/
function JsonReport(opts) {
this.opts = opts || {};
this.opts.dir = this.opts.dir || process.cwd();
this.opts.file = this.opts.file || this.getDefaultConfig().file;
this.opts.writer = this.opts.writer || null;
}
JsonReport.TYPE = 'json';
util.inherits(JsonReport, Report);
Report.mix(JsonReport, {
synopsis: function () {
return 'prints the coverage object as JSON to a file';
},
getDefaultConfig: function () {
return {
file: 'coverage-final.json'
};
},
writeReport: function (collector, sync) {
var outputFile = path.resolve(this.opts.dir, this.opts.file),
writer = this.opts.writer || new Writer(sync),
that = this;
writer.on('done', function () { that.emit('done'); });
writer.writeFile(outputFile, function (contentWriter) {
var first = true;
contentWriter.println("{");
collector.files().forEach(function (key) {
if (first) {
first = false;
} else {
contentWriter.println(",");
}
contentWriter.write(JSON.stringify(key));
contentWriter.write(":");
contentWriter.write(JSON.stringify(collector.fileCoverageFor(key)));
});
contentWriter.println("}");
});
writer.done();
}
});
module.exports = JsonReport;