spec/unit/initializers/sprockets_spec.rb in locomotivecms_steam-1.0.0 vs spec/unit/initializers/sprockets_spec.rb in locomotivecms_steam-1.0.1

@@ -20,6 +20,42 @@
 
     end
 
   end
 
+  describe '#install_autoprefixer' do
+
+    let(:options) { { minify: false } }
+
+    subject { env }
+
+    context "config/autoprefixer.yml doesn't exist" do
+
+      before { allow(File).to receive(:exists?).and_return false }
+
+      it { expect(AutoprefixerRails).not_to receive(:install); subject }
+
+    end
+
+    context "config/autoprefixer.yml exists" do
+
+      before {
+        allow(File).to receive(:exists?).and_return(true)
+        allow(YAML).to receive(:load_file).and_return({})
+      }
+
+      it { expect(AutoprefixerRails).to receive(:install).and_return(true); subject }
+
+      it 'warns developers if they notice bad performance when using autoprefixer' do
+        curent_execjs_runtime = ENV['EXECJS_RUNTIME']
+        ENV['EXECJS_RUNTIME'] = 'NodeJS'
+        expect(Locomotive::Common::Logger).not_to receive(:warn)
+        expect(AutoprefixerRails).to receive(:install).and_return(true)
+        subject
+        ENV['EXECJS_RUNTIME'] = curent_execjs_runtime
+      end
+
+    end
+
+  end
+
 end