javascript - Running test cases selectively with Mocha -


there total of 20 test case files. want test particular set of 10 test cases. there script file or other method run test cases selectively mocha?

there 2 principal ways specify subset of tests run:

  1. you can give mocha name of file contains tests want run:

    $ mocha path/to/file

    it possible give paths multiple files if needed. instance, if have 10 test files , want run tests 2 of them, give paths of 2 files.

    this method relies on splitting tests separate files according logic suits situation.

  2. you can use --grep option:

    $ mocha --grep pattern

    the pattern regular expression mocha use test each test title. each test pattern matches run.

the 2 methods combined run tests match pattern , 1 specific file: $ mocha --grep pattern path/to/file


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