Creating C# List Using dotNET

[socc3rpr0]

Hello, 

I want to create a script using TestComplete to test a C# API one of my colleagues wrote. How would I go about creating a C# list with TestComplete since it requires all arguments to be passed to a C# function, even though all arguments have a default value. I am using the CLR Bridge to load the DLL for the API. I  want to use dotNET in order to call these functions. 

// Here are two C# functions I want to call:

1) public short SendRequest(List<IP> ipList, double timeout = 2.0)

2) public void RefreshWindow(List<Devices> deviceList = null, int maxAttempts = 3, double timeout=2.0) 

// So Far all I got to work is this but that just creates a list of 'Sytem.Object' not a list of the class I want. 

// I found this example here

var typeListOf = dotNET.System.Type.GetType("System.Collections.Generic.List`1");
var paramTypes = dotNET.System.Array.CreateInstance(dotNET.System.Type.GetType("System.Type"), 1);
var objType = dotNET.System.Type.GetType("System.Object");
paramTypes.SetValue(objType, 0); 
var typeListOfString = typeListOf.MakeGenericType(paramTypes);
var list = dotNET.System.Activator.CreateInstance_3(typeListOfString);

Any help would be greatly appreciated. 

[HKosova]

Hi socc3rpr0,

Please keep in mind that TestComplete is a GUI testing tool, it's not really suitable for .NET API unit testing. Consider using a unit testing tool like NUnit, MSTest, xUnit.net, etc.

That said, your example is almost correct. You only need to specify the appropriate type - IP or Devices - for objType:

var objType = dotNET.System.Type.GetType("Namespace.Whatever.IP");

var objType = dotNET.System.Type.GetType("Namespace.Whatever.Devices");

The assembly containing the IP and Devices classes needs to be in the CLR Bridge list.

Once you have created the list you can add list items as follows:

var ip1 = dotNET.name_space.IP.zctor(parameters);
var ip2 = dotNET.name_space.IP.zctor(parameters);

list.Add(ip1);
list.Add(ip2);

[AlexKaras]

Hi,

> Consider using a unit testing tool like NUnit, MSTest, xUnit.net, etc.

Or TestLeft (https://smartbear.com/product/testleft/overview/) which will provide you all power of .Net programming while keeping you within TestComplete's eco-system (Object Browser, Log, etc.).

[Lagencie]

I know its very old, but I had the same Problem and with the suggestion it didnt work, because it just wouldnt know the class i type into the 

GetType("System.Object")

I managed it with 

objType = dotNET.namespace_further_further_whatever.ClassIwant.zctor().GetType()

So i just created a new instance of the class i needed and used the GetType onto it, this way the type set was exactly what I needed

As for the whole construct:

typeListOf = dotNET.System.Type.GetType("System.Collections.Generic.List`1")
objType = dotNET.namespace_further.SpecificValueClass.zctor().GetType()
paramTypes = dotNET.System.Array.CreateInstance(dotNET.System.Type.GetType("System.Type"), 1)
paramTypes.SetValue(objType, 0)
typeListOfString = typeListOf.MakeGenericType(paramTypes)

newValue = dotNET.namespace.WattPeakValues.zctor()

newValue.ID = 1
settings.SpecificValue.Add(newValue)

[TanyaYatskovska]

Thanks for sharing your solution with us, @Lagencie!