test.only() function isn't working when using the Mocha TDD interface

[mmcculloch15]

The Problem

When using the Mocha TDD UI interface, tests cannot be singled out for execution by using the only() function.

Environment

• WebdriverIO version: 4.6.1
• Node.js version: 6.6.0
• [Standalone mode or wdio testrunner] wdio
• if wdio testrunner, running synchronous or asynchronous tests: synchronous
• Additional wdio packages used (if applicable):

Details

Only the TDD UI seems to be affected. I can use the BDD interface and execute a single test with it.only().

Link to Selenium/WebdriverIO logs

Code To Reproduce Issue [ Good To Have ]

Gist: https://gist.github.com/mmcculloch15/9d03692de1536c0d72166fbee155835c

[christian-bromann]

@mmcculloch15 I was not able to reproduce this. I downloaded the gist and ran it with success. Please let me know if you have any more information. I would be happy to reopen this issue if it turns out to be a bug in WebdriverIO.