FeatureRequest: Allow InvocationType argument to InvokeFunction()

[kbalk]

What I would like to do:

Add an argument to InvokeFunction() that can be used as the InvocationType argument to AWS SDK's Invoke().

From the AWS CLI command reference (https://docs.aws.amazon.com/cli/latest/reference/lambda/invoke.html):

invoke
--function-name
[--invocation-type ] <-----
[--log-type ]
[--client-context ]
[--payload ]
[--qualifier ]
<outfile>

terratest/modules/aws/lambda.go

Line 13 in 8361e81

func InvokeFunction(t testing.TestingT, region, functionName string, payload interface{}) []byte {

Why?

An InvocationType argument of "DryRun" provides a simple verification of a Lambda's installation. It's also useful where it's difficult to generate the appropriate payload to test a lambda's invocation.

[brikis98]

PR to add this, perhaps in a new function, is welcome!

[brikis98]

Fixed in #817 and released in https://github.com/gruntwork-io/terratest/releases/tag/v0.32.21.