How to run a single test in nightwatch

Question

How do I run only Test 3 from the following tests?

module.exports = {   'Test 1':function(){},   'Test 2':function(){}   'Test 3':function(){} } 

Answer 1

A new parameter --testcase has been added to run a specified testcase.

nightwatch.js --test tests\demo.js --testcase "Test 1" 

It's a new feature since the v0.6.0

https://github.com/beatfactor/nightwatch/releases/tag/v0.6.0

Answer 2

You must use specific tags before function and separate all functions in diferent files under tests directory, and then call command with --tag argument. See wiki nightwatch tags page and watch this example:

// --- file1.js --- module.exports = {     tags: ['login'],     'Test 1':function(){         //TODO test 1     } };  // --- file2.js --- module.exports = {     tags: ['special', 'createUser'],     'Test 2':function(){         //TODO test 2     }, };  // --- file3.js --- module.exports = {     tags: ['logoff', 'special'],     'Test 3':function(){         //TODO test 3     }, } 

If you run:

nightwatch.js --tag login 

only runs Test 1, however if you run:

nightwatch.js --tag special 

Test 2 and Test 3 will be executed.

You can specific more than one tag

nightwatch.js --tag tag1 --tag tag2 

Separate each test function is mandatory because Nightwatch handled with filematcher each file. See Github code.

PD: If file has syntax errors, is possible that test don't run or test hasn't been found