required_providers { testing = { source = "hashicorp/testing" version = "0.1.0" } } provider "testing" "default" {} variable "default" { type = object({ id = string value = string }) default = { id = "cec9bc39" value = "hello, mercury!" } } variable "optional_default" { type = object({ id = optional(string) value = optional(string, "hello, venus!") }) default = { id = "78d8b3d7" } } variable "optional" { type = object({ id = optional(string) value = optional(string, "hello, earth!") }) } component "self" { source = "./" providers = { testing = provider.testing.default } inputs = { input = [ var.default, var.optional_default, var.optional, ] } } stack "child" { source = "./child" inputs = { optional = {} } }