1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/bluetooth/device/gattserverdisconnected-event/one-event-per-disconnection.https.window.js b/testing/web-platform/tests/bluetooth/device/gattserverdisconnected-event/one-event-per-disconnection.https.window.js
new file mode 100644
index 0000000000..ab273adbc8
--- /dev/null
+++ b/testing/web-platform/tests/bluetooth/device/gattserverdisconnected-event/one-event-per-disconnection.https.window.js
@@ -0,0 +1,30 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+// META: script=/bluetooth/resources/bluetooth-test.js
+// META: script=/bluetooth/resources/bluetooth-fake-devices.js
+'use strict';
+const test_desc = 'If a site disconnects from a device while the platform is ' +
+    'disconnecting that device, only one gattserverdisconnected event should ' +
+    'fire.';
+
+bluetooth_test(async () => {
+  const {device, fake_peripheral} = await getConnectedHealthThermometerDevice();
+  let num_events = 0;
+
+  // 1. Listen for disconnections.
+  device.addEventListener('gattserverdisconnected', () => num_events++);
+
+  // 2. Disconnect several times.
+  await Promise.all([
+    eventPromise(device, 'gattserverdisconnected'),
+    fake_peripheral.simulateGATTDisconnection(),
+    device.gatt.disconnect(),
+    device.gatt.disconnect(),
+  ]);
+
+  // 3. Wait to catch disconnect events.
+  await new Promise(resolve => step_timeout(resolve, 50));
+
+  // 4. Ensure there is exactly 1 disconnection recorded.
+  assert_equals(num_events, 1);
+}, test_desc);