public void GetStepSize_SendValidRequest()
{
//Arrange
string commandName = "stepsize";
IRestRequest sentRequest = null;
var commandSenderMock = new Mock <ICommandSender>();
commandSenderMock
.Setup(x => x.ExecuteRequest <DoubleResponse>(It.IsAny <string>(), It.IsAny <RestRequest>()))
.Callback((string baseUrl, IRestRequest request) => sentRequest = request)
.Returns(new DoubleResponse(1.0));
var focuser = new Focuser(_deviceConfiguration, commandSenderMock.Object);
//Act
focuser.GetStepSize();
//Assert
Assert.Equal(Method.GET, sentRequest.Method);
AssertCommonParameters(sentRequest.Parameters, _deviceConfiguration, commandName);
}