sdl based blueprint inspect

lib/absinthe/schema/notation/sdl_render.ex

@@ -394,18 +394,26 @@ defmodule Absinthe.Schema.Notation.SDL.Render do
     concat(["[", render(type), "]"])
   end
 
-  def render(%Blueprint.TypeReference.List{type_name: type_name}) do
+  def render(%Blueprint.TypeReference.List{type_name: type_name}) when is_binary(type_name) do
     concat(["[", string(type_name), "]"])
   end
 
+  def render(%Blueprint.TypeReference.List{of_type: of_type}) do
+    concat(["[", render(of_type), "]"])
+  end
+
   def render(%{"ofType" => type, "kind" => "NON_NULL"}) do
     concat([render(type), "!"])
   end
 
-  def render(%Blueprint.TypeReference.NonNull{type_name: type_name}) do
+  def render(%Blueprint.TypeReference.NonNull{type_name: type_name}) when is_binary(type_name) do
     concat([string(type_name), "!"])
   end
 
+  def render(%Blueprint.TypeReference.NonNull{of_type: of_type}) do
+    concat([render(of_type), "!"])
+  end
+
   def render(%{"name" => name}) do
     string(name)
   end

test/absinthe/schema/sdl_render_test.exs

@@ -11,7 +11,7 @@ defmodule SdlRenderTest do
   TODO:
     - [ ] `Inspect` protocol for Blueprint structs!!!!!
     - [ ] Generate `Blueprint` from introspection
-            instead of render(introspection)
+            remove from_introspection
 
   Make tickets:
     - default values !!
@@ -82,8 +82,14 @@ defmodule SdlRenderTest do
   end
 
   test "Render SDL from blueprint defined with SDL" do
-    rendered_sdl =
-      Absinthe.Schema.Notation.SDL.Render.from_blueprint(SdlTestSchema.__absinthe_blueprint__())
+    pipeline = [
+      Absinthe.Phase.Schema.Debugger
+    ]
+
+    {:ok, blueprint, _phases} =
+      Absinthe.Pipeline.run(SdlTestSchema.__absinthe_blueprint__(), pipeline)
+
+    rendered_sdl = inspect(blueprint, pretty: true)
 
     assert rendered_sdl == SdlTestSchema.sdl()
   end