Adds simplecov and configures it to collect coverage from cucumber

Signed-off-by: M. Scott Ford <[email protected]>

Author: mscottford

.gitignore

@@ -1,3 +1,4 @@
 .idea
 /Gemfile.lock
 /tmp/aruba
+/coverage

.simplecov

@@ -0,0 +1,38 @@
+# Copied from https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/.simplecov
+# Licensed under MIT - https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/LICENSE
+
+SimpleCov.configure do
+  enable_for_subprocesses true
+
+  # Activate branch coverage
+  enable_coverage :branch
+
+  # ignore this file
+  add_filter ".simplecov"
+  add_filter "features"
+
+  # Rake tasks aren't tested with rspec
+  add_filter "Rakefile"
+  add_filter "lib/tasks"
+
+  #
+  # Changed Files in Git Group
+  # @see http://fredwu.me/post/35625566267/simplecov-test-coverage-for-changed-files-only
+  untracked         = `git ls-files --exclude-standard --others`
+  unstaged          = `git diff --name-only`
+  staged            = `git diff --name-only --cached`
+  all               = untracked + unstaged + staged
+  changed_filenames = all.split("\n")
+
+  add_group "Changed" do |source_file|
+    changed_filenames.select do |changed_filename|
+      source_file.filename.end_with?(changed_filename)
+    end
+  end
+
+  add_group "Libraries", "lib"
+
+  # Specs are reported on to ensure that all examples are being run and all
+  # lets, befores, afters, etc are being used.
+  add_group "Specs", "spec/"
+end

Rakefile

@@ -1,7 +1,22 @@
 #!/usr/bin/env rake
+$LOAD_PATH << File.expand_path(__dir__)
+
+require "aruba/platform"
+
+require "bundler"
+Bundler.setup
+
 require 'bundler/gem_tasks'
-require 'rspec/core/rake_task'
+require "cucumber/rake/task"
+require "rspec/core/rake_task"
+
+Cucumber::Rake::Task.new do |t|
+  t.cucumber_opts = %w(--format progress)
+end
 
 RSpec::Core::RakeTask.new('spec')
 
-task default: :spec
+desc "Run the whole test suite."
+task test: [:spec, :cucumber]
+
+task default: :test

cyclonedx-ruby.gemspec

@@ -29,4 +29,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec', '~> 3.7'
   spec.add_development_dependency 'cucumber', '~> 8.0'
   spec.add_development_dependency 'aruba', '~> 2.1'
+  spec.add_development_dependency 'simplecov', '~> 0.22.0'
 end

features/support/env.rb

@@ -1 +1,33 @@
+# Based on https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/features/support/env.rb
+# Licensed under MIT - https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/LICENSE
+
+$LOAD_PATH.unshift File.expand_path('../../lib', __dir__)
+
+# Has to be the first file required so that all other files show coverage information
+require_relative 'simplecov_support' unless RUBY_PLATFORM.include?('java')
+
+require 'fileutils'
+require 'pathname'
+
 require 'aruba/cucumber'
+require 'rspec/expectations'
+
+Around do |test_case, block|
+  command_name = "#{test_case.location.file}:#{test_case.location.line} # #{test_case.name}"
+
+  # Used in simplecov_setup so that each scenario has a different name and
+  # their coverage results are merged instead of overwriting each other as
+  # 'Cucumber Features'
+  set_environment_variable 'SIMPLECOV_COMMAND_NAME', command_name.to_s
+
+  simplecov_setup_pathname =
+    Pathname.new(__FILE__).expand_path.parent.to_s
+
+  # set environment variable so child processes will merge their coverage data
+  # with parent process's coverage data.
+  prepend_environment_variable 'RUBYOPT', "-I#{simplecov_setup_pathname} -rsimplecov_support "
+
+  with_environment do
+    block.call
+  end
+end

features/support/simplecov_support.rb

@@ -0,0 +1,15 @@
+# Copied from https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/features/support/simplecov_setup.rb
+# Licensed under MIT - https://github.com/cucumber/aruba/blob/3b1a6cea6e3ba55370c3396eef0a955aeb40f287/LICENSE
+
+# @note this file is loaded in env.rb to setup simplecov using RUBYOPTs for
+# child processes and @in-process
+unless RUBY_PLATFORM.include?('java')
+  require 'simplecov'
+  root = File.expand_path('../..', __dir__)
+  command_name = ENV['SIMPLECOV_COMMAND_NAME'] || 'Cucumber Features'
+  SimpleCov.command_name(command_name)
+  SimpleCov.root(root)
+
+  # Run simplecov by default
+  SimpleCov.start unless ENV.key? 'ARUBA_NO_COVERAGE'
+end