Assert on result of Task.start_link/1

lib/koans/12_task.ex

@@ -8,7 +8,8 @@ defmodule Tasks do
   end
 
   koan "if you don't need a result, use start_link/1" do
-    {:ok, _pid} = Task.start_link(fn -> 1+1 end)
+    {result, _pid} = Task.start_link(fn -> 1+1 end)
+    assert result == :__
   end
 
   koan "yield returns nothing if the task isn't done yet" do

test/koans_harness_test.exs

@@ -222,7 +222,7 @@ defmodule KoansHarnessTest do
   test "Tasks" do
     answers = [
       10,
-      :todo,
+      :ok,
       nil,
       nil,
       9,