| Index: third_party/WebKit/LayoutTests/bluetooth/descriptor/readValue/read-updates-value.html | 
| diff --git a/third_party/WebKit/LayoutTests/bluetooth/descriptor/readValue/read-updates-value.html b/third_party/WebKit/LayoutTests/bluetooth/descriptor/readValue/read-updates-value.html | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..811f074c263b1cc9580b703b24d63124392bba4b | 
| --- /dev/null | 
| +++ b/third_party/WebKit/LayoutTests/bluetooth/descriptor/readValue/read-updates-value.html | 
| @@ -0,0 +1,25 @@ | 
| +<!DOCTYPE html> | 
| +<script src="../../../resources/testharness.js"></script> | 
| +<script src="../../../resources/testharnessreport.js"></script> | 
| +<script src="../../../resources/bluetooth/bluetooth-helpers.js"></script> | 
| +<script> | 
| +'use strict'; | 
| +promise_test(() => { | 
| +  return setBluetoothFakeAdapter('DisconnectingHealthThermometerAdapter') | 
| +    .then(() => requestDeviceWithKeyDown({ | 
| +      filters: [{services: ['health_thermometer']}]})) | 
| +    .then(device => device.gatt.connect()) | 
| +    .then(gattServer => gattServer.getPrimaryService('health_thermometer')) | 
| +    .then(service => service.getCharacteristic('measurement_interval')) | 
| +    .then(characteristic => characteristic.getDescriptor(user_description.name)) | 
| +    .then(descriptor => { | 
| +      assert_equals(descriptor.value, null); | 
| +      return descriptor.readValue() | 
| +          .then(() => { | 
| +            let decoder = new TextDecoder('utf-8'); | 
| +            let value_str = decoder.decode(descriptor.value); | 
| +            assert_equals(value_str, user_description.name); | 
| +          }); | 
| +    }); | 
| +}, 'Succesful read should update descriptor\'s value.'); | 
| +</script> | 
|  |