Update to different way to fetch list of runners

qa/qa/resource/project.rb

@@ -295,13 +295,6 @@ module QA
         merge_requests.find { |mr| mr[:title] == title }
       end
 
-      def runners(tag_list: nil)
-        url = tag_list ? "#{api_runners_path}?tag_list=#{tag_list.compact.join(',')}" : api_runners_path
-        response = get(request_url(url, per_page: '100'))
-
-        parse_body(response)
-      end
-
       def registry_repositories
         response = get(request_url(api_registry_repositories_path))
         parse_body(response)

qa/qa/resource/runner.rb

@@ -46,11 +46,12 @@ module QA
       end
 
       def remove_via_api!
-        runners = project.runners(tag_list: @tags)
+        runners = list_of_runners(tag_list: @tags)
 
         return if runners.blank?
 
         this_runner = runners.find { |runner| runner[:description] == name }
+
         unless this_runner
           raise "Project #{project.path_with_namespace} does not have a runner with a description matching #{name} #{"or tags #{@tags}" if @tags&.any?}. Runners available: #{runners}"
         end
@@ -62,6 +63,16 @@ module QA
         Service::DockerRun::GitlabRunner.new(name).remove!
       end
 
+      def list_of_runners(tag_list: nil)
+        url = tag_list ? "#{api_post_path}?tag_list=#{tag_list.compact.join(',')}" : api_post_path
+        response = get(request_url(url, per_page: '100'))
+
+        # Capturing 500 error code responses to log this issue better. We can consider cleaning it up once https://gitlab.com/gitlab-org/gitlab/-/issues/331753 is addressed.
+        raise "Response returned a #{response.code} error code. #{response.body}" if response.code == Support::API::HTTP_STATUS_SERVER_ERROR
+
+        parse_body(response)
+      end
+
       def api_delete_path
         "/runners/#{id}"
       end
@@ -70,6 +81,7 @@ module QA
       end
 
       def api_post_path
+        "/runners"
       end
 
       def api_post_body

qa/qa/specs/features/api/4_verify/remove_runner_spec.rb

@@ -7,7 +7,7 @@ module QA
 
       let(:api_client) { Runtime::API::Client.new(:gitlab) }
       let(:executor) { "qa-runner-#{Time.now.to_i}" }
-      let(:runner_tags) { ['runner-registration-e2e-test'] }
+      let(:runner_tags) { ["runner-registration-e2e-test-#{Faker::Alphanumeric.alphanumeric(number: 8)}"] }
       let!(:runner) do
         Resource::Runner.fabricate! do |runner|
           runner.name = executor
@@ -20,16 +20,18 @@ module QA
       end
 
       # Removing a runner via the UI is covered by `spec/features/runners_spec.rb``
-      it 'removes the runner', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/355302', type: :investigating }, testcase: 'https://gitlab.com/gitlab-org/gitlab/-/quality/test_cases/354828' do
-        expect(runner.project.runners.size).to eq(1)
-        expect(runner.project.runners.first[:description]).to eq(executor)
+      it 'removes the runner' do
+        runners = runner.list_of_runners(tag_list: runner_tags)
 
-        request = Runtime::API::Request.new(api_client, "runners/#{runner.project.runners.first[:id]}")
+        expect(runners.size).to eq(1)
+        expect(runners.first[:description]).to eq(executor)
+
+        request = Runtime::API::Request.new(api_client, "runners/#{runners.first[:id]}")
         response = delete(request.url)
         expect(response.code).to eq(Support::API::HTTP_STATUS_NO_CONTENT)
         expect(response.body).to be_empty
 
-        expect(runner.project.runners).to be_empty
+        expect(runner.list_of_runners(tag_list: runner_tags)).to be_empty
       end
     end
   end