Add specs for validating css for color schemes

Author: rossta

spec/rails_helper.rb

@@ -12,6 +12,7 @@
 require "rspec/rails"
 # Add additional requires below this line. Rails is not loaded until this point!
 require "phlex/testing/view_helper"
+require "w3c_validators"
 
 # Requires supporting ruby files with custom matchers and macros, etc, in
 # spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are

spec/requests/color_schemes_spec.rb

@@ -31,5 +31,18 @@
 
       expect(response).to have_http_status(:ok)
     end
+
+    it "renders color scheme as css" do
+      color_scheme = FactoryBot.create(:color_scheme)
+
+      get color_scheme_path(color_scheme, format: :css)
+
+      expect(response).to have_http_status(:ok)
+
+      validator = W3CValidators::CSSValidator.new
+      validator_results = validator.validate_text(response.body) # W3CValidators::Results
+
+      expect(validator_results.is_valid?).to be(true), "Expected CSS to be valid, but got: #{validator_results.errors.map(&:to_s).join(", ")}"
+    end
   end
 end

spec/requests/feed_spec.rb

@@ -1,7 +1,5 @@
 require "rails_helper"
 
-require "w3c_validators"
-
 RSpec.describe "Feed", type: :request do
   let(:curated_colors) do
     FactoryBot.create_list(:color_scheme, 3)

spec/support/webmock_vcr.rb

@@ -14,7 +14,7 @@
       allow_localhost: true,
       allow: [
         "chromedriver.storage.googleapis.com",
-        "validator.w3.org"
+        %r{w3.org/}
       ]
     )
   end

spec/views/components/color_schemes/css_spec.rb

@@ -0,0 +1,14 @@
+require "rails_helper"
+
+RSpec.describe ColorSchemes::Css do
+  describe "#call" do
+    it "renders valid css" do
+      component = described_class.new(color_scheme: FactoryBot.build(:color_scheme))
+
+      validator = W3CValidators::CSSValidator.new
+      validator_results = validator.validate_text(component.call)
+
+      expect(validator_results.is_valid?).to be(true), "Expected feed to be valid, but got: #{validator_results.errors.map(&:to_s).join(", ")}"
+    end
+  end
+end