Test is not showing passing when using should

Question

i am first time testing i write a test case

var should = require("should")
describe('Array', function(){
  describe('#indexOf()', function(){
    it('should return -1 when the value is not present',function(){
      [1,2,3].indexOf(5).should.equal(-1);
      [1,2,3].indexOf(0).should.equal(-1);
    })
  })
})

its giving me 0 passing

 0 passing (1ms)

but why it should show 1 passing

Answer 1

By default, if no parameters provided, mocha is looking in ./test directory.

If you saved the test above somewhere else (may be in current directory), you shall provide the path to this file as a parameter to mocha.

Assuming that test is saved in a file test.js, you shall execute it as following:

% mocha test.js
  ․
  1 passing (5ms)

Answer 2

For those wondering, just make sure to also have an it(...) section in your test. Mocha needs this to recognize that there is something here needing to be tested.