1 files changed, 40 insertions, 0 deletions
diff --git a/spec/benchmarks/models/user_spec.rb b/spec/benchmarks/models/user_spec.rb
new file mode 100644
index 00000000000..a08c84ffce4
--- /dev/null
+++ b/spec/benchmarks/models/user_spec.rb
@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe User, benchmark: true do
+  describe '.by_login' do
+    before do
+      %w{Alice Bob Eve}.each do |name|
+        create(:user,
+               email: "#{name}@gitlab.com",
+               username: name,
+               name: name)
+      end
+    end
+
+    let(:iterations) { 1000 }
+
+    describe 'using a capitalized username' do
+      subject { -> { User.by_login('Alice') } }
+
+      it { is_expected.to iterate_per_second(iterations) }
+    end
+
+    describe 'using a lowercase username' do
+      subject { -> { User.by_login('alice') } }
+
+      it { is_expected.to iterate_per_second(iterations) }
+    end
+
+    describe 'using a capitalized Email address' do
+      subject { -> { User.by_login('Alice@gitlab.com') } }
+
+      it { is_expected.to iterate_per_second(iterations) }
+    end
+
+    describe 'using a lowercase Email address' do
+      subject { -> { User.by_login('alice@gitlab.com') } }
+
+      it { is_expected.to iterate_per_second(iterations) }
+    end
+  end
+end