.gitignore

coverage

README.md

Demonstration of why RSpec does not exit with a status of 0 when all specs pass. (For rspec/rspec-core#1918)

Normally, we get a non-zero exit status from SimpleCov due to our min coverage being too low:

➜  bundle exec ruby use_rspec_and_simplecov.rb; echo $?
Coverage report generated for RSpec to /Users/myron/code/rspec-scratch/rspec-exit-0-behavior/coverage. 2 / 3 LOC (66.67%) covered.
Coverage (66.67%) is below the expected minimum coverage (100.00%).
.

Finished in 0.00046 seconds (files took 0.1162 seconds to load)
1 example, 0 failures

2

However, if we activate our monkey patch that forces RSpec to always exit, we get an exit code of 0.

➜  MAKE_RSPEC_ALWAYS_EXIT=1 bundle exec ruby use_rspec_and_simplecov.rb; echo $?
Coverage report generated for RSpec to /Users/myron/code/rspec-scratch/rspec-exit-0-behavior/coverage. 2 / 3 LOC (66.67%) covered.
Coverage (66.67%) is below the expected minimum coverage (100.00%).
.

Finished in 0.00043 seconds (files took 0.10172 seconds to load)
1 example, 0 failures

0

foo.rb

class Foo
  def do_stuff
    3 + 4 # uncovered
  end
end

Gemfile

# A sample Gemfile
source "https://rubygems.org"

gem 'rspec'
gem 'simplecov'

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    diff-lcs (1.2.5)
    docile (1.1.5)
    multi_json (1.11.0)
    rspec (3.2.0)
      rspec-core (~> 3.2.0)
      rspec-expectations (~> 3.2.0)
      rspec-mocks (~> 3.2.0)
    rspec-core (3.2.2)
      rspec-support (~> 3.2.0)
    rspec-expectations (3.2.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.2.0)
    rspec-mocks (3.2.1)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.2.0)
    rspec-support (3.2.2)
    simplecov (0.9.2)
      docile (~> 1.1.0)
      multi_json (~> 1.0)
      simplecov-html (~> 0.9.0)
    simplecov-html (0.9.0)

PLATFORMS
  ruby

DEPENDENCIES
  rspec
  simplecov

use_rspec_and_simplecov.rb

require 'rspec/autorun'

if ENV['MAKE_RSPEC_ALWAYS_EXIT']
  def (RSpec::Core::Runner).invoke
    disable_autorun!
    status = run(ARGV, $stderr, $stdout).to_i
    exit(status)
  end
end

require 'simplecov'

SimpleCov.start do
  minimum_coverage 100
end

require_relative 'foo'

RSpec.describe "Some group" do
  example { }
end