From 0c7b03cad321a84ac8832b1423543befc2efde0c Mon Sep 17 00:00:00 2001
From: Pascal Hartig <realpassy@fb.com>
Date: Fri, 6 Dec 2019 06:30:07 -0800
Subject: [PATCH] Add tests for settings reducer

Summary: yiss_tests

Reviewed By: jknoxville

Differential Revision: D18851134

fbshipit-source-id: 53ffb9b516773df19c258e7d819962e3cd523751
---
 src/reducers/__tests__/settings.node.tsx | 36 ++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/reducers/__tests__/settings.node.tsx

diff --git a/src/reducers/__tests__/settings.node.tsx b/src/reducers/__tests__/settings.node.tsx
new file mode 100644
index 000000000..02c20c2c6
--- /dev/null
+++ b/src/reducers/__tests__/settings.node.tsx
@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {default as reducer, updateSettings, Tristate} from '../settings';
+
+test('init', () => {
+  const res = reducer(undefined, {type: 'INIT'});
+  expect(res.enableAndroid).toBeTruthy();
+});
+
+test('updateSettings', () => {
+  const initialSettings = reducer(undefined, {type: 'INIT'});
+  const updatedSettings = Object.assign(initialSettings, {
+    enableAndroid: false,
+    enablePrefetching: Tristate.True,
+    jsApps: {
+      webAppLauncher: {
+        height: 900,
+      },
+    },
+  });
+  const res = reducer(initialSettings, updateSettings(updatedSettings));
+
+  expect(res.enableAndroid).toBeFalsy();
+  expect(res.enablePrefetching).toEqual(Tristate.True);
+  expect(res.jsApps.webAppLauncher.height).toEqual(900);
+  expect(res.jsApps.webAppLauncher.width).toEqual(
+    initialSettings.jsApps.webAppLauncher.width,
+  );
+});