diff --git a/test/controllers/polling_controller_test.rb b/test/controllers/polling_controller_test.rb
new file mode 100644
index 0000000..1dfe5e7
--- /dev/null
+++ b/test/controllers/polling_controller_test.rb
@@ -0,0 +1,29 @@
+require "test_helper"
+
+class PollingControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    user = FactoryBot.build(:user)
+    post(sessions_path(session: { name: user.name, password: user.password }))
+  end
+
+  test "may find nothing" do
+    stub(Plugin).installing { [] }
+    stub(Plugin).uninstalling { [] }
+    get(polling_alerts_path)
+    assert_response(:success)
+  end
+
+  test "may find gems being uninstalled" do
+    stub(Plugin).installing { [] }
+    stub(Plugin).uninstalling { [FactoryBot.build(:plugin)] }
+    get(polling_alerts_path)
+    assert_response(:success)
+  end
+
+  test "may find gems being installed" do
+    stub(Plugin).installing { [FactoryBot.build(:plugin)] }
+    stub(Plugin).uninstalling { [] }
+    get(polling_alerts_path)
+    assert_response(:success)
+  end
+end