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allow coverage instrumentation of multiple files #125

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Merged
kof merged 2 commits into from
Feb 2, 2016
+11 −1
Merged

allow coverage instrumentation of multiple files #125

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60c869f
allow coverage instrumentation of multiple files
bjouhier Feb 1, 2016
b53a7ee
use options.coverage.files + allow array of strings or regexps
bjouhier Feb 2, 2016
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12 changes: 11 additions & 1 deletion lib/coverage.js
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,17 @@ exports.instrument = function(options) {
var matcher, instrumenter;

matcher = function (file) {
return file === options.code.path;
var files = options.coverage.files;
if (files) {
files = Array.isArray(files) ? files : [files];
return files.some(function(f) {
if (typeof f === 'string') return file.indexOf(f) === 0;
else if (f instanceof RegExp) return f.test(file);
else throw new Error("invalid entry in options.coverage.files: " + typeof f);
});
} else {
return file === options.code.path;
}
}
instrumenter = new istanbul.Instrumenter();
istanbul.hook.hookRequire(matcher, instrumenter.instrumentSync.bind(instrumenter));
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