CODEWITHSUNDEEP
javascripttestingmocha.js
Jayesh
Jayesh

Reputation: 53335

How to make Mocha's grep option work in browser

I am using Mocha to write BDD tests in browser. I would like the ability to run selective tests using Mocha's grep option. Mocha has grep support when launched from command line for node.js environment. However I can't get it to work for the browser.

I am setting up Mocha as shown in these example html file and tried to pass grep as option, but that didn't work

mocha.setup({ui:"bdd",ignoreLeaks:true,grep:"pattern"})
mocha.run()

Any ideas?

Upvotes: 3

Views: 1346

Answers (1)

Jayesh
Jayesh

Reputation: 53335

Ok, I figured it out.

You can mention the grep option in the URL like this

/?grep=pattern

If you want to launch tests programmatically you need to make sure that window.location.search reads ?grep=pattern.

Directly setting window.location.search to some string may not be desirable because that refreshes the page. Instead you can use HTML5 history API window.history.pushState({},'Test','/?grep=pattern') before calling mocha.run()

Upvotes: 4

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