TerraformIterator: Tests fail for official example of "Using Iterators on Complex Lists"

[rexebin]

Expected Behavior

Tests should pass.

Actual Behavior

Example code: Using Iterators on Complex Lists

Test fails with error:

System.TypeInitializationException: The type initializer for 'IteratorStack.Tests.IteratorStackTests' threw an exception.

System.TypeInitializationException
The type initializer for 'IteratorStack.Tests.IteratorStackTests' threw an exception.
   at IteratorStack.Tests.IteratorStackTests.CheckValidity() in C:\dev\CdkTfTestFailExample\IteratorStack.Tests\IteratorStackTests.cs:line 15
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

System.ArgumentException
Could not infer JSII type for .NET type '_Proxy' (Parameter 'type')
   at Amazon.JSII.Runtime.Services.Converters.FrameworkToJsiiConverter.InferType(IReferenceMap referenceMap, Type type)
   at Amazon.JSII.Runtime.Services.Converters.FrameworkToJsiiConverter.InferType(IReferenceMap referenceMap, Object value)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.ConvertAny(Type type, IReferenceMap referenceMap, Object value)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvertPrimitive(Type type, IReferenceMap referenceMap, Object value, Boolean isOptional, PrimitiveType primitiveType, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvert(IOptionalValue optionalValue, Type type, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.FrameworkToJsiiConverter.TryConvert(IOptionalValue optionalValue, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<>c__DisplayClass20_0.<ConvertArguments>b__0(Parameter parameter, Object frameworkArgument)
   at System.Linq.Enumerable.ZipIterator[TFirst,TSecond,TResult](IEnumerable`1 first, IEnumerable`1 second, Func`3 resultSelector)+MoveNext()
   at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
   at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.ConvertArguments(Parameter[] parameters, Object[] arguments)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<InvokeMethodCore>g__GetResult|18_0[T](<>c__DisplayClass18_0`1&)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeMethodCore[T](JsiiMethodAttribute methodAttribute, Object[] arguments, Func`3 beginFunc, Func`3 invokeFunc)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeStaticMethod[T](Type type, Type[] parameterTypes, Object[] arguments, String methodName)
   at HashiCorp.Cdktf.Token.AsList(Object value, IEncodingOptions options)
   at IteratorStack.IteratorStack..ctor(Construct scope, String id) in C:\dev\CdkTfTestFailExample\IteratorStack\IteratorStack.cs:line 47
   at IteratorStack.Tests.IteratorStackTests..cctor() in C:\dev\CdkTfTestFailExample\IteratorStack.Tests\IteratorStackTests.cs:line 8

Steps to Reproduce

See repository:
https://github.com/rexebin/CdkTfTestFailExample

Run test to see failed messages with line 50 in IteratorStack.cs:
ValidationRecordFqdns = Token.AsList(recordsIterator.PluckProperty("fqdn"))

Comment out line 50, uncomment line 51 to see test pass.

Versions

language: csharp
cdktf-cli: 0.20.3
node: v20.11.0
cdktf: 0.20.3
constructs: 10.3.0
jsii: 1.94.0
terraform: 1.7.1
arch: x64
os: win32 10.0.22631
dotnet: 8.0.102
providers
HashiCorp.Cdktf.Providers.Aws (PREBUILT)
terraform provider version: 5.38.0
prebuilt provider version: 19.7.0
cdktf version: ^0.20.0

Providers

┌───────────────┬──────────────────┬─────────┬────────────┬───────────────────────────────┬─────────────────┐
│ Provider Name │ Provider Version │ CDKTF │ Constraint │ Package Name │ Package Version │
├───────────────┼──────────────────┼─────────┼────────────┼───────────────────────────────┼─────────────────┤
│ aws │ 5.38.0 │ ^0.20.0 │ │ HashiCorp.Cdktf.Providers.Aws │ 19.7.0 │
└───────────────┴──────────────────┴─────────┴────────────┴───────────────────────────────┴─────────────────┘

Gist

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Possible Solutions

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Workarounds

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Anything Else?

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References

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Help Wanted

• I'm interested in contributing a fix myself

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