public async Task EnqueueAsync_DataNull()
{
// arrange
EventHubClient client = EventHubClient.CreateFromConnectionString(Constants.FakeConnectionString);
EventHubTransmissionBuffer buffer = new EventHubTransmissionBuffer(client);
EventData data = null;
// act
Func <Task> verify = () => buffer.EnqueueAsync(data);
// assert
await Assert.ThrowsAsync <ArgumentNullException>("data", verify).ConfigureAwait(false);
}
