Fixing a fork based merge request test

qa/qa/resource/fork.rb

@@ -14,6 +14,7 @@ module QA
           resource.add_name_uuid = false
           resource.name = name
           resource.path_with_namespace = "#{user.username}/#{name}"
+          resource.api_client = @api_client
         end
       end
 
@@ -69,6 +70,12 @@ module QA
         populate(:project)
       end
 
+      def remove_via_api!
+        project.remove_via_api!
+        upstream.remove_via_api!
+        user.remove_via_api! unless Specs::Helpers::ContextSelector.dot_com?
+      end
+
       def api_get_path
         "/projects/#{CGI.escape(path_with_namespace)}"
       end

qa/qa/resource/merge_request_from_fork.rb

@@ -6,7 +6,7 @@ module QA
       attr_accessor :fork_branch
 
       attribute :fork do
-        Fork.fabricate_via_browser_ui!
+        Fork.fabricate_via_api!
       end
 
       attribute :push do
@@ -23,8 +23,15 @@ module QA
 
         fork.project.visit!
 
+        mr_url = Flow::Login.while_signed_in(as: fork.user) do
           Page::Project::Show.perform(&:new_merge_request)
           Page::MergeRequest::New.perform(&:create_merge_request)
+
+          current_url
+        end
+
+        Flow::Login.sign_in
+        visit(mr_url)
       end
 
       def fabricate_via_api!

qa/qa/specs/features/browser_ui/3_create/merge_request/merge_merge_request_from_fork_spec.rb

 # frozen_string_literal: true
 
 module QA
-  RSpec.describe 'Create', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/332588', type: :investigating } do
+  RSpec.describe 'Create' do
     describe 'Merge request creation from fork' do
-      # TODO: Please add this back to :smoke suite as soon as https://gitlab.com/gitlab-org/gitlab/-/issues/332588 is addressed
-      it 'can merge feature branch fork to mainline', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/quality/test_cases/1305' do
-        merge_request = Resource::MergeRequestFromFork.fabricate_via_browser_ui! do |merge_request|
+      let(:merge_request) do
+        Resource::MergeRequestFromFork.fabricate_via_browser_ui! do |merge_request|
           merge_request.fork_branch = 'feature-branch'
         end
+      end
+
+      before do
+        Flow::Login.sign_in
+      end
 
-        Flow::Login.while_signed_in do
+      after do
+        merge_request.fork.remove_via_api!
+      end
+
+      it 'can merge feature branch fork to mainline', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/quality/test_cases/1305' do
         merge_request.visit!
 
         Page::MergeRequest::Show.perform do |merge_request|
           merge_request.merge!
 
-            expect(merge_request).to have_content('The changes were merged')
-          end
+          expect(merge_request).to be_merged
         end
       end
     end