Add code coverage with SimpleCov

Author: n-rodriguez

Gemfile

@@ -11,6 +11,7 @@ gem 'ostruct'
 gem 'pry'
 gem 'rake'
 gem 'rspec'
+gem 'simplecov'
 gem 'warning'
 
 # fallback to faraday 1.x in dev environment

gemfiles/faraday0.gemfile

@@ -7,6 +7,7 @@ gem "ostruct"
 gem "pry"
 gem "rake"
 gem "rspec"
+gem "simplecov"
 gem "warning"
 gem "faraday", "< 1.0"
 gem "faraday_middleware", "< 1"

gemfiles/faraday1.gemfile

@@ -7,6 +7,7 @@ gem "ostruct"
 gem "pry"
 gem "rake"
 gem "rspec"
+gem "simplecov"
 gem "warning"
 gem "faraday", "= 1.0"
 gem "faraday_middleware", "< 2"

gemfiles/faraday2.gemfile

@@ -7,6 +7,7 @@ gem "ostruct"
 gem "pry"
 gem "rake"
 gem "rspec"
+gem "simplecov"
 gem "warning"
 gem "faraday", "< 3"
 gem "rubocop", require: false

spec/spec_helper.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# Load ruby-warning gem
 require 'warning'
 
 Warning[:deprecated]   = true
@@ -14,6 +15,16 @@
 # Ignore OpenStruct warning (only used in tests)
 Warning.ignore(/OpenStruct use is discouraged for performance reasons/)
 
+# Load simplecov
+require 'simplecov'
+require 'simplecov_json_formatter'
+
+# Start SimpleCov
+SimpleCov.start do
+  formatter SimpleCov::Formatter::MultiFormatter.new([SimpleCov::Formatter::HTMLFormatter, SimpleCov::Formatter::JSONFormatter])
+  add_filter 'spec/'
+end
+
 # Load gem
 require 'netbox-client-ruby'
 require_relative 'shared_contexts/netbox_client'