[1.1.0-alpha.1] Cannot read property 'text' of undefined in HTML report

[MatthiasF999]

Trace

Cannot read property 'text' of undefined
TypeError: Cannot read property 'text' of undefined
    at H:\projects\general\modulemanager\node_modules\istanbul-reports\lib\html\annotator.js:149:59
    at Array.forEach (native)
    at annotateBranches (H:\projects\general\modulemanager\node_modules\istanbul-reports\lib\html\annotator.js:112:30)
    at Object.annotateSourceCode (H:\projects\general\modulemanager\node_modules\istanbul-reports\lib\html\annotator.js:191:9)
    at HtmlReport.onDetail (H:\projects\general\modulemanager\node_modules\istanbul-reports\lib\html\index.js:217:39)
    at LcovReport.(anonymous function) [as onDetail] (H:\projects\general\modulemanager\node_modules\istanbul-reports\lib\lcov\index.js:24:24)
    at Visitor.(anonymous function) [as onDetail] (H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:34:30)
    at ReportNode.Node.visit (H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:123:17)
    at H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:116:23
    at Array.forEach (native)
    at visitChildren (H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:115:32)
    at ReportNode.Node.visit (H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:126:5)
    at Tree.visit (H:\projects\general\modulemanager\node_modules\istanbul-lib-report\lib\tree.js:158:20)
    at H:\projects\general\modulemanager\node_modules\istanbul-api\lib\reporter.js:84:18
    at Array.forEach (native)
    at Object.Reporter.write (H:\projects\general\modulemanager\node_modules\istanbul-api\lib\reporter.js:82:35)
    at exitFn (H:\projects\general\modulemanager\node_modules\istanbul-api\lib\run-cover.js:169:18)
    at process.g (events.js:286:16)
    at emitOne (events.js:101:20)
    at process.emit (events.js:188:7)
    at process.exit (internal/process.js:146:15)
    at done (H:\projects\general\modulemanager\node_modules\mocha\bin\_mocha:417:32)
    at afterWrite (_stream_writable.js:361:3)
    at _combinedTickCallback (internal/process/next_tick.js:80:20)
    at process._tickCallback (internal/process/next_tick.js:98:9)

relevant package.json

  "scripts": {
    "coverage": "node_modules/.bin/istanbul cover node_modules/mocha/bin/_mocha test -- --compilers js:babel-register --require babel-polyfill"
  },
  "dependencies": {
    "callsite": "^1.0.0"
  },
  "devDependencies": {
    "babel-cli": "^6.10.1",
    "babel-plugin-transform-class-properties": "^6.9.1",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-plugin-transform-export-extensions": "^6.8.0",
    "babel-plugin-transform-function-bind": "^6.8.0",
    "babel-polyfill": "^6.9.1",
    "babel-preset-es2015": "^6.9.0",
    "babel-preset-stage-2": "^6.5.0",
    "babel-register": "^6.9.0",
    "chai": "^3.5.0",
    "istanbul": "^1.1.0-alpha.1",
    "mocha": "^2.5.3",
    "nodemon": "^1.9.2",
    "sinon": "^1.17.4",
    "sinon-chai": "^2.8.0"
  }

I can only test this with istanbul@next, since the stable version delivers an empty coverage report.

[gotwarlost]

That message usually means that the source text for a file does not match what was instrumented.

Is there a way you can provide a basic failing case in a gist or something?

[MatthiasF999]

Well, I found the mistake.

It is a problem with babel not generating sourcemaps when not told via command (.babelrc doesn't work in this case).

[taozhi8833998]

have the same issue +1

[HipsterZipster]

@MatthiasF999 How did you solve?

[MatthiasF999]

You need to remove

"sourceMaps": true

from the .babelrc file. That solved it for me.

[levity]

I have the same issue and don't have "sourceMaps": true in my .babelrc file.

[amygdaloideum]

In my case this problem was casused by running istanbul after browserify-ngannotate in browserify transforms.

[levity]

I created a patch for this issue: https://github.com/istanbuljs/istanbul-reports/pull/10

[aldoshin]

For those working with webpack, you can find this useful:

https://github.com/deepsweet/istanbul-instrumenter-loader/issues/32

Basically work with older version of "istanbul-instrumenter-loader": "0.2.0"

[LoganBarnett]

I ran into this problem in my Webpack setup. Making istanbul-instrumenter-loader the inner most (last) loader in the chain for my files helped make it work. Also I added sourceMaps: true as a babel option. This is using istanbul-instrumenter-loader 2.0.0.