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Code Coverage with Istanbul

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Setting Up Istanbul

3:21 with Andrew Chalkley

In this video we'll set up Istanbul in a simple calculator project.

Resources

Code Downloads

git clone https://github.com/treehouse-projects/calculator.js-code-coverage calculator.js

Commands

npm install istanbul --save-dev

./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha

If you're using a more complex testing directory with sub-folders you should use the recursive flag like this:

./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- -recursive

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    Change into the directory and install the current development dependencies. 0:06
    Npm install should install the testing framework Mocha and 0:14
    the assertion library Chai. 0:18
    The calculative functionality is in the index.js file. 0:23

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