Add `/assign me` alias support for assigning issuables to oneself

Currently, when a user wants to assign an issue/MR to himself, he needs
to type his full username or select it from the suggested ones in the
dropdown list.
This commits suggest a faster solution which is typing `/assign me`

Closes #35304.

1 files changed, 11 insertions, 0 deletions

diff --git a/spec/support/features/issuable_slash_commands_shared_examples.rb b/spec/support/features/issuable_slash_commands_shared_examples.rb
index 32835e391a8..68f0ce8afb3 100644
--- a/spec/support/features/issuable_slash_commands_shared_examples.rb
+++ b/spec/support/features/issuable_slash_commands_shared_examples.rb
@@ -279,6 +279,17 @@ shared_examples 'issuable record that supports quick actions in its description
         expect(issuable.subscribed?(master, project)).to be_falsy
       end
     end
+
+    context "with a note assigning the #{issuable_type} to the current user" do
+      it "assigns the #{issuable_type} to the current user" do
+        write_note("/assign me")
+
+        expect(page).not_to have_content '/assign me'
+        expect(page).to have_content 'Commands applied'
+
+        expect(issuable.reload.assignees).to eq [master]
+      end
+    end
   end
 
   describe "preview of note on #{issuable_type}" do