mochajs / mocha / 6150

92%

main: 94%

Pull #3915

travis-ci

Extend tests for `--watch` options

This commit adds two test cases to test the `--watch` option. We check
that touching a test file reruns the tests and we test that touching a
file that has a correct extensions reruns the test.

This commit adds `fs-extra` as a new dev dependency.

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