Add ability to run tests with coverage report

spec/coverage/instrument.js

@@ -22,7 +22,7 @@ glob.sync('**/*.js', {cwd: libPath}).forEach(function (relativePath) {
   fs.writeFileSync(generatedPath, generated)
 })
 
-var asarPath = path.join(outputPath, 'electron-instrumented.asar')
+var asarPath = path.join(outputPath, 'electron.asar')
 asar.createPackageWithOptions(path.join(outputPath, 'lib'), asarPath, {}, function (error) {
   if (error) {
     console.error(error.stack || error)

spec/coverage/reporter.js

@@ -33,7 +33,7 @@ const addUnrequiredFiles = (coverage) => {
 }
 
 // Generate a code coverage report in out/coverage/lcov-report
-exports.generate = () => {
+exports.generateReport = () => {
   const coverage = window.__coverage__
   if (coverage == null) return
 
@@ -49,27 +49,3 @@ exports.generate = () => {
   reporter.addAll(['text', 'lcov'])
   reporter.write(collector, true, function () {})
 }
-
-// Generate an instrumented .asar file for all the files in lib/ and save it
-// to out/coverage/electron-instrumented.asar
-exports.instrument = () => {
-  const instrumenter = new Instrumenter()
-
-  glob.sync('**/*.js', {cwd: libPath}).forEach(function (relativePath) {
-    const rawPath = path.join(libPath, relativePath)
-    const raw = fs.readFileSync(rawPath, 'utf8')
-
-    const generatedPath = path.join(outputPath, 'lib', relativePath)
-    const generated = instrumenter.instrumentSync(raw, rawPath)
-    mkdirp.sync(path.dirname(generatedPath))
-    fs.writeFileSync(generatedPath, generated)
-  })
-
-  const asarPath = path.join(outputPath, 'electron-instrumented.asar')
-  asar.createPackageWithOptions(path.join(outputPath, 'lib'), asarPath, {}, function (error) {
-    if (error) {
-      console.error(error.stack || error)
-      process.exit(1)
-    }
-  })
-}

spec/static/index.html

@@ -83,7 +83,7 @@
       Mocha.utils.highlightTags('code');
       if (isCi)
         ipcRenderer.send('process.exit', runner.failures);
-      require('./coverage').generate()
+      require('../coverage/reporter').generateReport()
     });
   });
 })();