Turn on simplecov to measure code coverage

spec/spec_helper.rb

@@ -1,11 +1,27 @@
-require "bundler/setup"
-require "propane"
+unless ENV["dist_specs"]
+  require "bundler/setup"
+  require "simplecov"
 
-RSpec.configure do |config|
-  # Enable flags like --only-failures and --next-failure
-  config.example_status_persistence_file_path = ".rspec_status"
+  SimpleCov.start do
+    add_filter "/spec/"
+    add_filter "/.bundle/"
+    if ENV["partial_specs"]
+      command_name "RSpec-partial"
+    else
+      command_name "RSpec"
+    end
+    project_name "Propane"
+    merge_timeout 3600
+  end
 
-  config.expect_with :rspec do |c|
-    c.syntax = :expect
+  RSpec.configure do |config|
+    # Enable flags like --only-failures and --next-failure
+    config.example_status_persistence_file_path = ".rspec_status"
+
+    config.expect_with :rspec do |c|
+      c.syntax = :expect
+    end
   end
 end
+
+require "propane"