Add 'squash and rebase' feature to CE

2 files changed, 60 insertions, 0 deletions

diff --git a/qa/qa/page/merge_request/show.rb b/qa/qa/page/merge_request/show.rb
index 166861e6c4a..9507f92f4b2 100644
--- a/qa/qa/page/merge_request/show.rb
+++ b/qa/qa/page/merge_request/show.rb
@@ -16,6 +16,10 @@ module QA
           element :no_fast_forward_message, 'Fast-forward merge is not possible'
         end
 
+        view 'app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_squash_before_merge.vue' do
+          element :squash_checkbox
+        end
+
         def rebase!
           click_element :mr_rebase_button
 
@@ -41,6 +45,14 @@ module QA
             has_text?('The changes were merged into')
           end
         end
+
+        def mark_to_squash
+          wait(reload: true) do
+            has_css?(element_selector_css(:squash_checkbox))
+          end
+
+          click_element :squash_checkbox
+        end
       end
     end
   end
diff --git a/qa/qa/specs/features/merge_request/squash_spec.rb b/qa/qa/specs/features/merge_request/squash_spec.rb
new file mode 100644
index 00000000000..dbbdf852a38
--- /dev/null
+++ b/qa/qa/specs/features/merge_request/squash_spec.rb
@@ -0,0 +1,48 @@
+module QA
+  feature 'merge request squash commits', :core do
+    scenario 'when squash commits is marked before merge'  do
+      Runtime::Browser.visit(:gitlab, Page::Main::Login)
+      Page::Main::Login.act { sign_in_using_credentials }
+
+      project = Factory::Resource::Project.fabricate! do |project|
+        project.name = "squash-before-merge"
+      end
+
+      merge_request = Factory::Resource::MergeRequest.fabricate! do |merge_request|
+        merge_request.project = project
+        merge_request.title = 'Squashing commits'
+      end
+
+      Factory::Repository::Push.fabricate! do |push|
+        push.project = project
+        push.commit_message = 'to be squashed'
+        push.branch_name = merge_request.source_branch
+        push.new_branch = false
+        push.file_name = 'other.txt'
+        push.file_content = "Test with unicode characters ❤✓€❄"
+      end
+
+      merge_request.visit!
+
+      Page::MergeRequest::Show.perform do |merge_request_page|
+        merge_request_page.mark_to_squash
+        merge_request_page.merge!
+
+        merge_request.project.visit!
+
+        Git::Repository.perform do |repository|
+          repository.uri = Page::Project::Show.act do
+            choose_repository_clone_http
+            repository_location.uri
+          end
+
+          repository.use_default_credentials
+
+          repository.act { clone }
+
+          expect(repository.commits.size).to eq 3
+        end
+      end
+    end
+  end
+end