Rspec-core: make success/failure colors configurable

[dchelimsky]

Red/green colorblind users would benefit from the ability to configure success/failure colors.

[alindeman]

This seems pretty straightforward. Thoughts on naming and interface?

RSpec.configure do |c|
  c.failure_color = :red
  c.success_color = :green
end

(and appropriate command line equivalents for ~/.rspec)?

[dchelimsky]

I think we can support Symbols like :red and :green, but we should also support ascii color codes. Otherwise, this seems fine to me.

[alindeman]

Specified via integers?

RSpec.configuration.success_color = 34 # blue

[dchelimsky]

Good idea.

[alindeman]

Cool. I think this could be a fun one to have a new employee work on. It might be a few weeks if that's OK.

[phudgins]

This would be invaluable for red/green colorblind people like me. Thanks for starting this!

[patmaddox]

I'd like to see symbols for common colors, and let people use an integer if they want something more specific.

[kurtisnelson]

This is being implemented in #709.

[sdondley]

To get color output to Mac's terminal, add a rspec configuration file named '.rspec' to the project's root and put the following single line in there:

--color

[dchelimsky]

@sdondley that's correct, however this issue is about configuring the specific colors that are used, not when color is used.

[myronmarston]

Fixed by #709.

[patbl]

Is there now a way of setting these options in .rspec, as alindeman suggested? I tried --failure-color yellow, but it didn't work. If there is, it seems not to be documented in the help file.

[hlascelles]

It appears the answer is still no.

[myronmarston]

Things that don't have explicit CLI options can still be configured from .rspec; you just have to --require a ruby file from there, and then configure it in that file. So, for example, if you wanted to globally change the colors on your machine, you could create a file like ~/configure_rspec_colors.rb:

RSpec.configure do |c|
  # Each of these can be one of the ANSI color code integers or one
  # of [:black, :white, :red, :green, :yellow, :blue, :magenta, :cyan].
  # The values I've assigned here are the defaults so you'll want to change them.

  # Color config is available in RSpec 2.13+. Since this file will
  # always be loaded by RSpec and you may have projects on earlier
  # versions, it's a good idea to only do this on versions that support it.
  if c.respond_to?(:default_color=)
    c.default_color = :white
    c.detail_color  = :cyan
    c.failure_color = :red
    c.fixed_color   = :blue
    c.pending_color = :yellow
    c.success_color = :green
  end
end

And then add --require "~/configure_rspec_colors.rb" to ~/.rspec. Any time you run rspec on your machine, you'll get the custom colors.