Merge branch 'qa/tn/new_test/file_locking' into 'master'

Backport for EE 15582

See merge request gitlab-org/gitlab-ce!32814

qa/qa.rb

@@ -66,6 +66,7 @@ module QA
     autoload :Fork, 'qa/resource/fork'
     autoload :SSHKey, 'qa/resource/ssh_key'
     autoload :Snippet, 'qa/resource/snippet'
+    autoload :ProjectMember, 'qa/resource/project_member'
     module Events
       autoload :Base, 'qa/resource/events/base'

qa/qa/git/repository.rb

@@ -85,6 +85,8 @@ module QA
       end
       def add_file(name, contents)
+        FileUtils.mkdir_p(::File.dirname(name))
+
         ::File.write(name, contents)
         if use_lfs?

qa/qa/page/main/login.rb

@@ -148,6 +148,12 @@ module QA
           click_element :saml_login_button
         end
+        def sign_out_and_sign_in_as(user:)
+          Menu.perform(&:sign_out)
+          has_sign_in_tab?
+          sign_in_using_credentials(user)
+        end
+
         private
         def sign_in_using_gitlab_credentials(user)

qa/qa/page/merge_request/show.rb

@@ -119,7 +119,7 @@ module QA
           has_element?(:description, text: description)
         end
-        def merge!
+        def try_to_merge!
           # The merge button is disabled on load
           wait do
             has_element?(:merge_button)
@@ -131,6 +131,10 @@ module QA
           end
           merge_immediately
+        end
+
+        def merge!
+          try_to_merge!
           success = wait do
             has_text?('The changes were merged into')

qa/qa/page/project/sub_menus/repository.rb

@@ -44,3 +44,5 @@ module QA
     end
   end
 end
+
+QA::Page::Project::SubMenus::Repository.prepend_if_ee('QA::EE::Page::Project::SubMenus::Repository')

qa/qa/resource/api_fabricator.rb

@@ -11,6 +11,7 @@ module QA
       ResourceNotFoundError = Class.new(RuntimeError)
       ResourceFabricationFailedError = Class.new(RuntimeError)
       ResourceURLMissingError = Class.new(RuntimeError)
+      ResourceNotDeletedError = Class.new(RuntimeError)
       attr_reader :api_resource, :api_response
       attr_writer :api_client
@@ -30,6 +31,10 @@ module QA
         resource_web_url(api_post)
       end
+      def remove_via_api!
+        api_delete
+      end
+
       def eager_load_api_client!
         return unless api_client.nil?
@@ -79,6 +84,17 @@ module QA
         process_api_response(parse_body(response))
       end
+      def api_delete
+        url = Runtime::API::Request.new(api_client, api_delete_path).url
+        response = delete(url)
+
+        unless response.code == HTTP_STATUS_NO_CONTENT
+          raise ResourceNotDeletedError, "Resource at #{url} could not be deleted (#{response.code}): `#{response}`."
+        end
+
+        response
+      end
+
       def api_client
         @api_client ||= begin
           Runtime::API::Client.new(:gitlab, is_new_session: !current_url.start_with?('http'), user: user)

qa/qa/resource/base.rb

@@ -47,6 +47,18 @@ module QA
         end
       end
+      def self.remove_via_api!(*args, &prepare_block)
+        options = args.extract_options!
+        resource = options.fetch(:resource) { new }
+        parents = options.fetch(:parents) { [] }
+
+        resource.eager_load_api_client!
+
+        do_fabricate!(resource: resource, prepare_block: prepare_block, parents: parents) do
+          log_fabrication(:api, resource, parents, args) { resource.remove_via_api! }
+        end
+      end
+
       def fabricate!(*_args)
         raise NotImplementedError
       end

qa/qa/resource/branch.rb

@@ -72,6 +72,18 @@ module QA
           end
         end
       end
+
+      def self.unprotect_via_api!(&block)
+        self.remove_via_api!(&block)
+      end
+
+      def api_get_path
+        "/projects/#{@project.api_resource[:id]}/protected_branches/#{@branch_name}"
+      end
+
+      def api_delete_path
+        "/projects/#{@project.api_resource[:id]}/protected_branches/#{@branch_name}"
+      end
     end
   end
 end

qa/qa/resource/merge_request.rb

@@ -17,6 +17,7 @@ module QA
                     :labels,
                     :file_name,
                     :file_content
+      attr_writer :no_preparation
       attribute :project do
         Project.fabricate! do |resource|
@@ -58,6 +59,7 @@ module QA
         @file_name = "added_file.txt"
         @file_content = "File Added"
         @target_new_branch = true
+        @no_preparation = false
       end
       def fabricate!
@@ -80,7 +82,7 @@ module QA
       end
       def fabricate_via_api!
-        populate(:target, :source)
+        populate(:target, :source) unless @no_preparation
         super
       end

qa/qa/resource/project_member.rb

+# frozen_string_literal: true
+
+module QA
+  module Resource
+    class ProjectMember < Base
+      attr_accessor :user, :project, :access_level
+      attr_reader :level
+
+      def initialize
+        @level = {
+          guest: 10,
+          reporter: 20,
+          developer: 30,
+          maintainer: 40,
+          owner: 50
+        }
+      end
+
+      def api_get_path
+        "/projects/#{project.api_resource[:id]}/members/#{user.api_resource[:id]}"
+      end
+
+      def api_post_path
+        "/projects/#{project.api_resource[:id]}/members"
+      end
+
+      def api_post_body
+        {
+          user_id: user.api_resource[:id],
+          access_level: access_level
+        }
+      end
+    end
+  end
+end

qa/qa/support/api.rb

@@ -5,6 +5,7 @@ module QA
     module Api
       HTTP_STATUS_OK = 200
       HTTP_STATUS_CREATED = 201
+      HTTP_STATUS_NO_CONTENT = 204
       def post(url, payload)
         RestClient::Request.execute(