Add e2e test to push using a private token

Tests pushing over HTTP(S) using a personal access token

qa/qa/factory/repository/push.rb

@@ -45,7 +45,7 @@ module QA
               repository.use_ssh_key(ssh_key)
             else
               repository.uri = repository_http_uri
-              repository.use_default_credentials
+              repository.use_default_credentials unless user
             end
 
             username = 'GitLab QA'

qa/qa/specs/features/browser_ui/3_create/repository/push_http_private_token_spec.rb

+# frozen_string_literal: true
+
+module QA
+  context 'Create' do
+    describe 'Git push over HTTP', :ldap_no_tls do
+      it 'user using a personal access token pushes code to the repository'  do
+        Runtime::Browser.visit(:gitlab, Page::Main::Login)
+        Page::Main::Login.perform(&:sign_in_using_credentials)
+
+        access_token = Factory::Resource::PersonalAccessToken.fabricate!.access_token
+
+        user = Factory::Resource::User.new.tap do |user|
+          user.username = Runtime::User.username
+          user.password = access_token
+        end
+
+        push = Factory::Repository::ProjectPush.fabricate! do |push|
+          push.user = user
+          push.file_name = 'README.md'
+          push.file_content = '# This is a test project'
+          push.commit_message = 'Add README.md'
+        end
+
+        push.project.visit!
+        Page::Project::Show.perform(&:wait_for_push)
+
+        expect(page).to have_content('README.md')
+        expect(page).to have_content('This is a test project')
+      end
+    end
+  end
+end