From 4ff46b0c3c9d40e38fbe7de16619d4351b3db41f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Mierzwa?= <l.mierzwa@gmail.com>
Date: Sun, 2 Sep 2018 00:10:56 +0100
Subject: [PATCH] feat(tests): add test coverage for index.js

---
 ui/src/index.js      | 6 ++++--
 ui/src/index.test.js | 5 +++++
 2 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 ui/src/index.test.js

diff --git a/ui/src/index.js b/ui/src/index.js
index 6786560c4..4ba254936 100644
--- a/ui/src/index.js
+++ b/ui/src/index.js
@@ -16,7 +16,9 @@ SetupRaven(settingsElement);
 Moment.startPooledTimer();
 
 const defaultFilters = ParseDefaultFilters(settingsElement);
-ReactDOM.render(
+
+// https://wetainment.com/testing-indexjs/
+export default ReactDOM.render(
   <App defaultFilters={defaultFilters} />,
-  document.getElementById("root")
+  document.getElementById("root") || document.createElement("div")
 );
diff --git a/ui/src/index.test.js b/ui/src/index.test.js
new file mode 100644
index 000000000..be85982c3
--- /dev/null
+++ b/ui/src/index.test.js
@@ -0,0 +1,5 @@
+import Index from "./index.js";
+
+it("renders without crashing", () => {
+  expect(Index).toBeTruthy();
+});