CODEWITHSUNDEEP
javascriptunit-testingmocha.js
laketuna
laketuna

Reputation: 4080

Mocha JS: grep not matching any tests

Mocha can't seem to match any patterns for some reason.

mocha -g MyClass

displays 0 passings (0ms), when I actually have several tests that can be run and passed if I run a single test script.

mocha test/my/test.js

yields 4 passing (10ms).

In test.js, I have

describe ('MyClass', function () {
    describe ('someMethod()', function () {
        it ('Should be...', function () {
            ....
        })
        ...
    })
})

Any idea what I'm doing wrong? Using mocha 3.5.0.

Upvotes: 7

Views: 2765

Answers (2)

Jon Schneider
Jon Schneider

Reputation: 26973

Another possible cause of Mocha apparently not finding specific tests that you're telling it to run with the --grep or -g option is if there are one or more other tests in your files that are defined with .only( ... ).

If Mocha sees any such .only tests, it won't run any other tests, even if your --grep argument doesn't include the .only test(s).

See: https://mochajs.org/#exclusive-tests

Upvotes: 0

Louis
Louis

Reputation: 151391

When you do mocha test/my/test.js Mocha has no trouble finding the test because you give a full path to the file. When you do mocha -g MyClass, Mocha has to find the file by itself. It looks in test, and your test file is located under it. So far so good, but by default Mocha won't go into subdirectories of test. So you have to do mocha -g MyClass --recursive.

Upvotes: 5

Related Questions