[34] Code coverage config in spec helper

CHANGELOG.md

@@ -1,8 +1,10 @@
 # master
 
+* Add default configuration for simplecov in spec_helper.rb
+
 * Display an error message if bundler failed to run or is not present in the system
 
-    * Juan Manuel Ramallo*
+    *Juan Manuel Ramallo*
 
 # 0.1.3
 

lib/rsgem.rb

@@ -16,6 +16,7 @@
 require 'rsgem/tasks/bundle_dependencies'
 require 'rsgem/tasks/run_rubocop'
 require 'rsgem/tasks/set_bundled_files'
+require 'rsgem/tasks/simple_cov_post_install'
 require 'rsgem/dependencies/base'
 require 'rsgem/dependencies/rake'
 require 'rsgem/dependencies/reek'

lib/rsgem/context.rb

@@ -47,5 +47,9 @@ def gitignore_path
     def rakefile_path
       "#{folder_path}/Rakefile"
     end
+
+    def spec_helper_path
+      "#{folder_path}/spec/spec_helper.rb"
+    end
   end
 end

lib/rsgem/dependencies/base.rb

@@ -3,14 +3,16 @@
 module RSGem
   module Dependencies
     class Base
-      attr_reader :config_file_destination, :config_file_source, :mode, :name, :version
+      attr_reader :config_file_destination, :config_file_source, :mode, :name, :post_install_task,
+                  :version
 
-      def initialize(config_file_source: nil, config_file_destination: nil, mode: :development,
-                     name:, version: nil)
-        @config_file_source = config_file_source
-        @config_file_destination = config_file_destination
-        @mode = mode # Either `development' or `runtime'
+      def initialize(name:, **args)
+        @config_file_source = args[:config_file_source]
+        @config_file_destination = args[:config_file_destination]
+        @mode = args[:mode] || 'development' # Either `development' or `runtime'
         @name = name
+        @post_install_task = args[:post_install_task]
+        version = args[:version]
         @version = version ? "'#{version}'" : nil
       end
 
@@ -21,6 +23,8 @@ def install(context)
           end
         end
 
+        post_install_task&.new(context: context)&.perform
+
         puts "\t#{name.capitalize} installed"
       end
 

lib/rsgem/dependencies/simplecov.rb

@@ -4,6 +4,7 @@ module RSGem
   module Dependencies
     # This is the latest stable version working correctly with codeclimate
     # 0.18+ does not work currently https://github.com/codeclimate/test-reporter/issues/413
-    Simplecov = Base.new(name: 'simplecov', version: '~> 0.17.1')
+    Simplecov = Base.new(name: 'simplecov', version: '~> 0.17.1',
+                         post_install_task: RSGem::Tasks::SimpleCovPostInstall)
   end
 end

lib/rsgem/tasks/create_gem.rb

@@ -28,7 +28,7 @@ def message
 
       def shell_command
         [
-          "bundle gem #{context.gem_name}",
+          "bundle gem #{context.gem_name} --test=rspec --coc --mit",
           bundler_options
         ].compact.join(' ')
       end

lib/rsgem/tasks/simple_cov_post_install.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module RSGem
+  module Tasks
+    class SimpleCovPostInstall < Base
+      def perform
+        spec_helper.sub!("require \"#{gem_name}\"", <<~RUBY)
+          require 'simplecov'
+
+          SimpleCov.start do
+            add_filter '/spec/'
+          end
+
+          require '#{gem_name}'
+        RUBY
+
+        write
+      end
+
+      private
+
+      def gem_name
+        context.gem_name
+      end
+
+      def spec_helper
+        @spec_helper ||= File.read(context.spec_helper_path)
+      end
+
+      def write
+        File.open(context.spec_helper_path, 'w') do |file|
+          file.puts spec_helper
+        end
+      end
+    end
+  end
+end

spec/gem_spec.rb

@@ -20,6 +20,7 @@
       let(:rakefile) { File.read("./#{gem_name}/Rakefile") }
       let(:travis) { File.read("./#{gem_name}/.travis.yml") }
       let(:expected_travis) { File.read('./lib/rsgem/support/travis.yml') }
+      let(:spec_helper) { File.read("./#{gem_name}/spec/spec_helper.rb") }
 
       it 'creates a new folder' do
         expect(list_files).to include gem_name
@@ -96,6 +97,10 @@
         expect(File.exist?("./#{gem_name}/.github/workflows")).to eq false
       end
 
+      it 'adds simplecov configuration in spec helper file' do
+        expect(spec_helper).to include 'SimpleCov.start do'
+      end
+
       context 'running inside the new gem' do
         before { Dir.chdir(gem_name) }
         after { Dir.chdir('../') }