1 files changed, 23 insertions, 0 deletions
diff --git a/spec/lib/constraints/user_url_constrainer_spec.rb b/spec/lib/constraints/user_url_constrainer_spec.rb
new file mode 100644
index 00000000000..207b6fe6c9e
--- /dev/null
+++ b/spec/lib/constraints/user_url_constrainer_spec.rb
@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+describe UserUrlConstrainer, lib: true do
+  let!(:user) { create(:user, username: 'dz') }
+
+  describe '#matches?' do
+    context 'valid request' do
+      let(:request) { build_request(user.username) }
+
+      it { expect(subject.matches?(request)).to be_truthy }
+    end
+
+    context 'invalid request' do
+      let(:request) { build_request('foo') }
+
+      it { expect(subject.matches?(request)).to be_falsey }
+    end
+  end
+
+  def build_request(username)
+    double(:request, params: { username: username })
+  end
+end