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    mocha-clean

    1.0.0 • Public • Published

    mocha-clean

    Cleans up mocha test stack traces.

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    Status

    Purpose

    Mocha stack traces are riddled with frames that you don't want to see, like code from modules and Mocha internals.

      1) Test:
         ReferenceError: someKey is not defined
          at Context.<anonymous> (/Users/rsc/Projects/mocha-clean/test/test.js:24:5)
          at callFn (/Users/rsc/Projects/mocha-clean/node_modules/mocha/lib/runnable.js:249:21)
          at Test.Runnable.run (/Users/rsc/Projects/mocha-clean/node_modules/mocha/lib/runnable.js:242:7)
          at Runner.runTest (/Users/rsc/Projects/mocha-clean/node_modules/mocha/lib/runner.js:373:10)
          ...
    

    This is better:

      1) Test:
         ReferenceError: someKey is not defined
          at myFunction (test/test:7:1)
          at test/test.js:24:5
    

    It strips away mocha internals, node_modules, absolute paths (based on cwd), and other unneccessary cruft.


    Usage (Node.js)

    npm version Available via npm.

    $ npm i --save-dev mocha-clean

    Add this to your test/mocha.opts:

    --require mocha-clean

    Usage (browser)

    Experimental browser support is available. Get the latest version here:

    <script src="//cdn.rawgit.com/rstacruz/mocha-clean/v0.4.0/index.js"></script>

    In the browser, use mocha.traceIgnores to define files to be excluded. Your setup will likely look like this (with chai.js in this example):

    <script src="mocha.js"></script>
    <script src="chai.js"></script>
    <script src="mocha-clean.js"></script>
    <script>mocha.setup('bdd')</script> 
    <script>mocha.traceIgnores = ['mocha.js', 'chai.js']</script> 
    <script src="tests.js"></script>
    <script>mocha.run()</script> 

    Brief mode

    To display brief format error messages similar to C++, Ruby and so on, add this to test/mocha.opts:

    --require mocha-clean/brief

    This displays the filenames first (file:n:n: function), which is reformatted from the JavaScript-style at function (file:n:n).

    1) error:
       ReferenceError: xyz is not defined
        test/fail.js:12:4: myfunction
        test/fail.js:9:9: Context.<anonymous>
    

    Showing node_modules

    By default, mocha-clean removes anything under node_modules. To disable this behavior, add this to test/mocha.opts:

    --require mocha-clean/show_node_modules

    Using with Gulp, Grunt, Karma, et al

    See: Using with mocha loaders ▸


    Showing absolute paths

    By default, mocha-clean removes the current working directory from the beginning of paths. To disable this behavior, add this to test/mocha.opts:

    --require mocha-clean/absolute_paths

    Related discussions

    There was talk in 2012 to bring this feature to mocha itself (see mocha#545), which eventually was merged around v2.2.5. It's been updated eversince to only affect mocha's internals. In contrast, mocha-clean cleans up all your node_modules's stack frames.

    mocha-clean has been tested with mocha 1.21.x and will likely work for the entire mocha 1.x series.


    Thanks

    mocha-clean © 2014+, Rico Sta. Cruz. Released under the MIT License.
    Authored and maintained by Rico Sta. Cruz with help from contributors (list).

    ricostacruz.com  ·  GitHub @rstacruz  ·  Twitter @rstacruz

    Keywords

    Install

    npm i mocha-clean

    DownloadsWeekly Downloads

    9,610

    Version

    1.0.0

    License

    MIT

    Last publish

    Collaborators

    • rstacruz