CODEWITHSUNDEEP
reactjsmocha.jsistanbulnyc
morghulis
morghulis

Reputation: 145

nyc (istanbul) doesn't work when NODE_ENV is set to test

I'm performing mocha tests on my React components that I wrote using ES6 syntax. I'm using Istanbul to do code coverage tests. When i set my NODE_ENV to 'test`, I get the following output:

----------|----------|----------|----------|----------|----------------|
File      |  % Stmts | % Branch |  % Funcs |  % Lines |Uncovered Lines |
----------|----------|----------|----------|----------|----------------|
All files |  Unknown |  Unknown |  Unknown |  Unknown |                |
----------|----------|----------|----------|----------|----------------|

As can be seen, it says unknown for everything. When I remove the NODE_ENV variable, it works fine. What can I do to run this test in the above environment?

Upvotes: 3

Views: 1454

Answers (2)

DougA
DougA

Reputation: 1255

Use cross-env (https://www.npmjs.com/package/cross-env)

In package.json:

"test": "cross-env NODE_ENV=test nyc mocha --exit && npm run coverage"

Upvotes: 0

user7729378
user7729378

Reputation:

I have been trying the last two days to set up a similar environment using babel, nyc and react and faced similar problems. How are you setting the NODE_ENV? Are you on Windows?

This is what I had in my package.json:

"test:c": "set NODE_ENV=test && npm run coverage"

When this is executed, windows actually sets the NODE_ENV as "test " not as "test". Notice the trailing whitespace.

I fixed this by removing the space from the script :

"test:c": "set NODE_ENV=test&& npm run coverage"

Upvotes: 3

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