Refactor specs to help with flakiness

Define child pipeline selector
Add child pipeline verification method
Remove click logic with child verification

app/assets/javascripts/pipelines/components/graph/linked_pipeline.vue

@@ -77,6 +77,7 @@ export default {
     ref="linkedPipeline"
     class="linked-pipeline build"
     :class="{ 'child-pipeline': childPipeline }"
+    data-qa-selector="child_pipeline"
   >
     <gl-deprecated-button
       :id="buttonId"

qa/qa/page/project/pipeline/show.rb

@@ -22,6 +22,7 @@ module QA
 
           view 'app/assets/javascripts/pipelines/components/graph/linked_pipeline.vue' do
             element :linked_pipeline_button
+            element :child_pipeline
           end
 
           view 'app/assets/javascripts/vue_shared/components/ci_icon.vue' do
@@ -60,6 +61,10 @@ module QA
             end
           end
 
+          def has_child_pipeline?
+            has_element? :child_pipeline
+          end
+
           def click_job(job_name)
             click_element(:job_link, text: job_name)
           end

qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_dependent_relationship_spec.rb

@@ -29,12 +29,8 @@ module QA
         view_pipelines
 
         Page::Project::Pipeline::Show.perform do |parent_pipeline|
+          expect(parent_pipeline).to have_child_pipeline
           expect(parent_pipeline).to have_passed
-
-          parent_pipeline.retry_on_exception(sleep_interval: 1.0) do
-            parent_pipeline.click_linked_job(project.name)
-          end
-          expect(parent_pipeline).to have_job("child_job")
         end
       end
 
@@ -43,12 +39,8 @@ module QA
         view_pipelines
 
         Page::Project::Pipeline::Show.perform do |parent_pipeline|
+          expect(parent_pipeline).to have_child_pipeline
           expect(parent_pipeline).to have_failed
-
-          parent_pipeline.retry_on_exception(sleep_interval: 1.0) do
-            parent_pipeline.click_linked_job(project.name)
-          end
-          expect(parent_pipeline).to have_job("child_job")
         end
       end
 

qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_independent_relationship_spec.rb

@@ -29,12 +29,8 @@ module QA
         view_pipelines
 
         Page::Project::Pipeline::Show.perform do |parent_pipeline|
+          expect(parent_pipeline).to have_child_pipeline
           expect(parent_pipeline).to have_passed
-
-          parent_pipeline.retry_on_exception(reload: true, sleep_interval: 1.0) do
-            parent_pipeline.click_linked_job(project.name)
-          end
-          expect(parent_pipeline).to have_job("child_job")
         end
       end
 
@@ -43,12 +39,8 @@ module QA
         view_pipelines
 
         Page::Project::Pipeline::Show.perform do |parent_pipeline|
+          expect(parent_pipeline).to have_child_pipeline
           expect(parent_pipeline).to have_passed
-
-          parent_pipeline.retry_on_exception(reload: true, sleep_interval: 1.0) do
-            parent_pipeline.click_linked_job(project.name)
-          end
-          expect(parent_pipeline).to have_job("child_job")
         end
       end