1 files changed, 11 insertions, 0 deletions
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index e84042f8063..91826e5884d 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -752,6 +752,17 @@ describe User, models: true do
     end
   end
 
+  describe '.find_by_username' do
+    it 'returns nil if not found' do
+      expect(described_class.find_by_username('JohnDoe')).to be_nil
+    end
+
+    it 'is case-insensitive' do
+      user = create(:user, username: 'JohnDoe')
+      expect(described_class.find_by_username('JOHNDOE')).to eq user
+    end
+  end
+
   describe '.find_by_username!' do
     it 'raises RecordNotFound' do
       expect { described_class.find_by_username!('JohnDoe') }.