Color codes are still being output when piped to other programs

[mcandre]

When I pipe mocha | less, ugly color code symbols are showing up:

mocha | less
ESC[0mESC[0m
ESC[0m  regenboogESC[0m
ESC[0m    dbESC[0m
^M    ESC[32m  ✓ESC[0mESC[90m store and retrieve password ESC[0m


ESC[92m ESC[0mESC[32m 1 passingESC[0mESC[90m (17ms)ESC[0m

Good etiquette for command line programs is to hide color codes when a TTY is not attached. jshint and ack behave correctly, for example.

I'm using the following system specs, in case this is an error in my personal configuration.

$ specs mocha node bash os
Specs:

specs 0.8
https://github.com/mcandre/specs#readme

mocha --version
1.21.3

npm --version
1.3.24

node --version
v0.10.25

bash --version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.1 LTS
Release:    14.04
Codename:   trusty

[ethankao]

I'm not sure if this is related. When I use -C option, the color code is still printing.

[lo1tuma]

I can confirm this, -C or --no-colors does not work with mocha 1.21.3.

[boneskull]

Problem appears in changeset a886ed9