fix: recursively translate input value strings to enums

[frekw]

No description provided.

[ghostdogpr]

this test is duplicated?

[frekw]

Whoops, must've copy pasted too much. Sorry, was a tad stressed :D

[ghostdogpr]

What if this one has a list inside. It doesn't need to recurse on this function?

[frekw]

Lists should be handled here -- this is more that we need to special case the top level Type before we get the "real" __Type.

[frekw]

It should be covered by this test case

caliban/core/src/test/scala/caliban/execution/FieldArgsSpec.scala

Lines 77 to 114 in 38daa5e

	testM("it correctly handles lists of enums") {
	case class QueryInput(color: List[COLOR], string: String)
	case class Query(query: Field => QueryInput => UIO[String])
	val query =
	"""query MyQuery($color: [COLOR!]!) {
	| query(string: "test", color: $color)
	|}""".stripMargin
	for {
	ref <- Ref.make[Option[Field]](None)
	api = graphQL(
	RootResolver(
	Query(
	query = info => { i =>
	ref.set(Option(info)).as(i.string)
	}
	)
	)
	)
	interpreter <- api.interpreter
	_ <- interpreter.executeRequest(
	request = GraphQLRequest(
	query = Some(query),
	// "color" is a string here since it will come directly from
	// parsed JSON which is unaware that it should be an Enum
	variables = Some(
	Map(
	"color" ->
	InputValue.ListValue(List(Value.StringValue("BLUE")))
	)
	)
	)
	)
	res <- ref.get
	} yield assertTrue(
	res.get.arguments("color") == InputValue.ListValue(List(EnumValue("BLUE")))
	)
	},

[darl]

Why this transformation necessary?
Aren't those line enough?
https://github.com/ghostdogpr/caliban/blob/master/core/src/main/scala-2/caliban/schema/ArgBuilderDerivation.scala#L44-L45

I encountered same problem with validation of Int/Float.
And don't sure how to fix.