1 files changed, 40 insertions, 0 deletions
diff --git a/chromium/device/usb/mojo/device_impl_unittest.cc b/chromium/device/usb/mojo/device_impl_unittest.cc
index 7fbcedaad85..0c707a06d0a 100644
--- a/chromium/device/usb/mojo/device_impl_unittest.cc
+++ b/chromium/device/usb/mojo/device_impl_unittest.cc
@@ -462,6 +462,46 @@ TEST_F(USBDeviceImplTest, Open) {
   EXPECT_CALL(permission_provider(), DecrementConnectionCount());
 }
 
+TEST_F(USBDeviceImplTest, OpenFailure) {
+  MockUsbDeviceClient device_client;
+  UsbDevicePtr device =
+      GetMockDeviceProxy(device_client.CreateInterfacePtrAndBind());
+
+  EXPECT_CALL(mock_device(), OpenInternal(_))
+      .WillOnce(Invoke([](UsbDevice::OpenCallback& callback) {
+        std::move(callback).Run(nullptr);
+      }));
+  EXPECT_CALL(device_client, OnDeviceOpened()).Times(0);
+  EXPECT_CALL(device_client, OnDeviceClosed()).Times(0);
+
+  base::RunLoop loop;
+  device->Open(base::BindOnce(&ExpectOpenAndThen,
+                              mojom::UsbOpenDeviceError::ACCESS_DENIED,
+                              loop.QuitClosure()));
+  loop.Run();
+}
+
+TEST_F(USBDeviceImplTest, OpenDelayedFailure) {
+  MockUsbDeviceClient device_client;
+  UsbDevicePtr device =
+      GetMockDeviceProxy(device_client.CreateInterfacePtrAndBind());
+
+  UsbDevice::OpenCallback saved_callback;
+  EXPECT_CALL(mock_device(), OpenInternal(_))
+      .WillOnce(Invoke([&saved_callback](UsbDevice::OpenCallback& callback) {
+        saved_callback = std::move(callback);
+      }));
+  EXPECT_CALL(device_client, OnDeviceOpened()).Times(0);
+  EXPECT_CALL(device_client, OnDeviceClosed()).Times(0);
+
+  device->Open(
+      base::BindOnce([](mojom::UsbOpenDeviceError result) { NOTREACHED(); }));
+  device.reset();
+  base::RunLoop().RunUntilIdle();
+
+  std::move(saved_callback).Run(nullptr);
+}
+
 TEST_F(USBDeviceImplTest, Close) {
   UsbDevicePtr device = GetMockDeviceProxy();