public void ExecuteAsync_should_throw_when_binding_is_null()
{
var subject = new FindOpcodeOperation<BsonDocument>(_collectionNamespace, BsonDocumentSerializer.Instance, _messageEncoderSettings);
Func<Task> action = () => subject.ExecuteAsync(null, CancellationToken.None);
action.ShouldThrow<ArgumentNullException>().And.ParamName.Should().Be("binding");
}
