fix specs, refactor missing bits from events stuff

lib/gitlab/cycle_analytics/base_event_fetcher.rb

@@ -3,7 +3,7 @@ module Gitlab
     class BaseEventFetcher
       include MetricsTables
 
-      attr_reader :projections, :query, :stage
+      attr_reader :projections, :query, :stage, :order
 
       def initialize(fetcher:, options:, stage:)
         @fetcher = fetcher
@@ -22,10 +22,6 @@ module Gitlab
 
       def custom_query(_base_query); end
 
-      def order
-        @order || @start_time_attrs
-      end
-
       private
 
       def update_author!
@@ -35,7 +31,7 @@ module Gitlab
       end
 
       def event_result
-        @event_result ||= @fetcher.events(self).to_a
+        @event_result ||= @fetcher.events.to_a
       end
 
       def serialize(_event)

lib/gitlab/cycle_analytics/base_stage.rb

 module Gitlab
   module CycleAnalytics
     class BaseStage
+      include MetricsTables
+
       attr_accessor :start_time_attrs, :end_time_attrs
 
       def initialize(project:, options:)
@@ -13,7 +15,7 @@ module Gitlab
       end
 
       def event
-        @event ||= Gitlab::CycleAnalytics::Event[stage].new(fetcher: @fetcher, options: @options)
+        @event ||= Gitlab::CycleAnalytics::Event[stage].new(fetcher: @fetcher, options: @options, stage: stage)
       end
 
       def events

lib/gitlab/cycle_analytics/event.rb

@@ -2,7 +2,7 @@ module Gitlab
   module CycleAnalytics
     module Event
       def self.[](stage_name)
-        CycleAnalytics.const_get("#{stage_name.to_s.camelize}Event")
+        CycleAnalytics.const_get("#{stage_name.to_s.camelize}EventFetcher")
       end
     end
   end

lib/gitlab/cycle_analytics/metrics_fetcher.rb

@@ -38,13 +38,16 @@ module Gitlab
 
       def events_query
         base_query = base_query_for(@stage.stage)
-        event = @stage.event
 
         diff_fn = subtract_datetimes_diff(base_query, @stage.start_time_attrs, @stage.end_time_attrs)
 
-        event_instance.custom_query(base_query)
+        @stage.event.custom_query(base_query)
 
-        base_query.project(extract_diff_epoch(diff_fn).as('total_time'), *event.projections).order(event.order.desc)
+        base_query.project(extract_diff_epoch(diff_fn).as('total_time'), *@stage.event.projections).order(order.desc)
+      end
+
+      def order
+        @stage.event.order || @stage.start_time_attrs.is_a?(Array) ? @stage.start_time_attrs.first : @stage.start_time_attrs
       end
 
       # Join table with a row for every <issue,merge_request> pair (where the merge request

spec/lib/gitlab/cycle_analytics/code_event_fetcher_spec.rb

@@ -5,8 +5,8 @@ describe Gitlab::CycleAnalytics::CodeEventFetcher do
   let(:stage_name) { :code }
 
   it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
     end
   end
 end

spec/lib/gitlab/cycle_analytics/issue_event_fetcher_spec.rb

@@ -4,9 +4,5 @@ require 'lib/gitlab/cycle_analytics/shared_event_spec'
 describe Gitlab::CycleAnalytics::IssueEventFetcher do
   let(:stage_name) { :issue }
 
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
+  it_behaves_like 'default query config'
 end

spec/lib/gitlab/cycle_analytics/plan_event_fetcher_spec.rb

@@ -5,10 +5,6 @@ describe Gitlab::CycleAnalytics::PlanEventFetcher do
   let(:stage_name) { :plan }
 
   it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-
     context 'no commits' do
       it 'does not blow up if there are no commits' do
         allow_any_instance_of(Gitlab::CycleAnalytics::MetricsFetcher).to receive(:events).and_return([{}])

spec/lib/gitlab/cycle_analytics/production_event_fetcher_spec.rb

@@ -4,9 +4,5 @@ require 'lib/gitlab/cycle_analytics/shared_event_spec'
 describe Gitlab::CycleAnalytics::ProductionEventFetcher do
   let(:stage_name) { :production }
 
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
+  it_behaves_like 'default query config'
 end

spec/lib/gitlab/cycle_analytics/review_event_fetcher_spec.rb

@@ -4,9 +4,5 @@ require 'lib/gitlab/cycle_analytics/shared_event_spec'
 describe Gitlab::CycleAnalytics::ReviewEventFetcher do
   let(:stage_name) { :review }
 
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
+  it_behaves_like 'default query config'
 end

spec/lib/gitlab/cycle_analytics/shared_event_spec.rb

@@ -10,18 +10,10 @@ shared_examples 'default query config' do
 
   let(:event) { described_class.new(fetcher: fetcher, options: {}, stage: stage_name) }
 
-  it 'has the start attributes' do
-    expect(event.start_time_attrs).not_to be_nil
-  end
-
   it 'has the stage attribute' do
     expect(event.stage).not_to be_nil
   end
 
-  it 'has the end attributes' do
-    expect(event.end_time_attrs).not_to be_nil
-  end
-
   it 'has the projection attributes' do
     expect(event.projections).not_to be_nil
   end

spec/lib/gitlab/cycle_analytics/shared_stage_spec.rb

@@ -8,6 +8,14 @@ shared_examples 'base stage' do
     allow_any_instance_of(Gitlab::CycleAnalytics::BaseEventFetcher).to receive(:event_result).and_return({})
   end
 
+  it 'has the start attributes' do
+    expect(stage.start_time_attrs).not_to be_nil
+  end
+
+  it 'has the end attributes' do
+    expect(stage.end_time_attrs).not_to be_nil
+  end
+
   it 'has the median data value' do
     expect(stage.median_data[:value]).not_to be_nil
   end

spec/lib/gitlab/cycle_analytics/staging_event_fetcher_spec.rb

@@ -5,8 +5,8 @@ describe Gitlab::CycleAnalytics::StagingEventFetcher do
   let(:stage_name) { :staging }
 
   it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
     end
   end
 end

spec/lib/gitlab/cycle_analytics/test_event_fetcher_spec.rb

@@ -5,8 +5,8 @@ describe Gitlab::CycleAnalytics::TestEventFetcher do
   let(:stage_name) { :test }
 
   it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
     end
   end
 end