From 6ef0dee20c7522c3561c070867689aa19b422d0d Mon Sep 17 00:00:00 2001
From: David Lechner <david@pybricks.com>
Date: Thu, 21 May 2020 21:11:30 -0500
Subject: [PATCH] test utils/web-bluetooth

---
 src/utils/web-bluetooth.test.ts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 src/utils/web-bluetooth.test.ts

diff --git a/src/utils/web-bluetooth.test.ts b/src/utils/web-bluetooth.test.ts
new file mode 100644
index 00000000..62921123
--- /dev/null
+++ b/src/utils/web-bluetooth.test.ts
@@ -0,0 +1,26 @@
+import { polyfillBluetoothRemoteGATTCharacteristic } from './web-bluetooth';
+
+describe('polyfillBluetoothRemoteGATTCharacteristic', () => {
+    test('old browser falls back to writeValue', () => {
+        const char = {} as BluetoothRemoteGATTCharacteristic;
+        Object.defineProperty(char, 'writeValue', { value: 'writeValue' });
+        expect(polyfillBluetoothRemoteGATTCharacteristic(char)).toEqual({
+            xWriteValueWithResponse: 'writeValue',
+            xWriteValueWithoutResponse: 'writeValue',
+        });
+    });
+    test('new browser uses writeValueWith(out)Response', () => {
+        const char = {} as BluetoothRemoteGATTCharacteristic;
+        Object.defineProperty(char, 'writeValue', { value: 'writeValue' });
+        Object.defineProperty(char, 'writeValueWithResponse', {
+            value: 'writeValueWithResponse',
+        });
+        Object.defineProperty(char, 'writeValueWithoutResponse', {
+            value: 'writeValueWithoutResponse',
+        });
+        expect(polyfillBluetoothRemoteGATTCharacteristic(char)).toEqual({
+            xWriteValueWithResponse: 'writeValueWithResponse',
+            xWriteValueWithoutResponse: 'writeValueWithoutResponse',
+        });
+    });
+});