1 files changed, 14 insertions, 0 deletions

diff --git a/spec/graphql/mutations/issues/set_assignees_spec.rb b/spec/graphql/mutations/issues/set_assignees_spec.rb
index 77ba511b715..9a27c5acdac 100644
--- a/spec/graphql/mutations/issues/set_assignees_spec.rb
+++ b/spec/graphql/mutations/issues/set_assignees_spec.rb
@@ -3,6 +3,20 @@
 require 'spec_helper'
 
 RSpec.describe Mutations::Issues::SetAssignees do
+  context 'when the user does not have permissions' do
+    let_it_be(:issue) { create(:issue) }
+    let_it_be(:user) { create(:user) }
+    let_it_be(:assignee) { create(:user) }
+
+    subject(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
+
+    describe '#resolve' do
+      subject { mutation.resolve(project_path: issue.project.full_path, iid: issue.iid, assignee_usernames: [assignee.username]) }
+
+      it_behaves_like 'permission level for issue mutation is correctly verified'
+    end
+  end
+
   it_behaves_like 'an assignable resource' do
     let_it_be(:resource, reload: true) { create(:issue) }
   end