Fixes bug with action_icon

* Adds more comprehensive spec
* Adds resolve_field helper

app/graphql/types/ci/detailed_status_type.rb

@@ -30,7 +30,7 @@ module Types
               if obj.has_action?
                 {
                   button_title: obj.action_button_title,
-                  icon: obj.icon,
+                  icon: obj.action_icon,
                   method: obj.action_method,
                   path: obj.action_path,
                   title: obj.action_title

spec/graphql/types/ci/detailed_status_type_spec.rb

@@ -3,11 +3,30 @@
 require 'spec_helper'
 
 RSpec.describe Types::Ci::DetailedStatusType do
+  include GraphqlHelpers
+
   specify { expect(described_class.graphql_name).to eq('DetailedStatus') }
 
-  it "has all fields" do
+  it 'has all fields' do
     expect(described_class).to have_graphql_fields(:group, :icon, :favicon,
                                                    :details_path, :has_details,
                                                    :label, :text, :tooltip, :action)
   end
+
+  describe 'action field' do
+    it 'correctly renders the field' do
+      stage = create(:ci_stage_entity, status: :skipped)
+      status = stage.detailed_status(stage.pipeline.user)
+
+      expected_status = {
+          button_title: status.action_button_title,
+          icon: status.action_icon,
+          method: status.action_method,
+          path: status.action_path,
+          title: status.action_title
+        }
+
+      expect(resolve_field('action', status)).to eq(expected_status)
+    end
+  end
 end

spec/support/helpers/graphql_helpers.rb

@@ -112,6 +112,16 @@ module GraphqlHelpers
     end
   end
 
+  def resolve_field(name, object, args = {})
+    context = double("Context",
+                    schema: GitlabSchema,
+                    query: GraphQL::Query.new(GitlabSchema),
+                    parent: nil)
+    field = described_class.fields[name]
+    instance = described_class.authorized_new(object, context)
+    field.resolve_field(instance, {}, context)
+  end
+
   # Recursively convert a Hash with Ruby-style keys to GraphQL fieldname-style keys
   #
   # prepare_input_for_mutation({ 'my_key' => 1 })