fix: use conn.private, not conn[:private]

test: add tests for calling the open api controller

Author: zachdaniel

lib/ash_json_api/controllers/open_api.ex

@@ -19,7 +19,7 @@ if Code.ensure_loaded?(OpenApiSpex) do
 
     @doc false
     def spec(conn, opts) do
-      phoenix_endpoint = opts[:phoenix_endpoint] || conn[:private][:phoenix_endpoint]
+      phoenix_endpoint = opts[:phoenix_endpoint] || conn.private[:phoenix_endpoint]
 
       opts
       |> Keyword.put(:phoenix_endpoint, phoenix_endpoint)

test/acceptance/open_api_test.exs

@@ -1,5 +1,6 @@
 defmodule Test.Acceptance.OpenApiTest do
   use ExUnit.Case, async: true
+  use Plug.Test
   alias OpenApiSpex.{OpenApi, Schema}
 
   defmodule Bio do
@@ -253,6 +254,19 @@ defmodule Test.Acceptance.OpenApiTest do
     %{open_api_spec: api_spec}
   end
 
+  test "spec can be fetched from the controller", %{open_api_spec: api_spec} do
+    assert :get
+           |> conn("/open_api")
+           |> AshJsonApi.Controllers.OpenApi.call(
+             domains: [Blogs],
+             modify_open_api: {__MODULE__, :modify_open_api, []}
+           )
+           |> sent_resp()
+           |> elem(2)
+           |> Jason.decode!()
+           |> Kernel.==(Jason.decode!(Jason.encode!(api_spec)))
+  end
+
   test "modify option is honored", %{open_api_spec: api_spec} do
     assert api_spec.info.title == "foobar"
   end