Include test with a struct without enforced keys

test/mimic_test.exs

@@ -949,7 +949,7 @@ defmodule Mimic.Test do
   describe "structs" do
     setup :set_mimic_private
 
-    test "copies struct fields" do
+    test "copies struct fields with required fields" do
       Structs
       |> stub(:foo, fn -> :stubbed end)
 
@@ -960,6 +960,16 @@ defmodule Mimic.Test do
              ]
     end
 
+    test "copies struct fields" do
+      StructNoEnforceKeys
+      |> stub(:bar, fn -> :stubbed end)
+
+      assert StructNoEnforceKeys.__info__(:struct) == [
+               %{field: :foo, required: false},
+               %{field: :bar, required: false}
+             ]
+    end
+
     test "protocol still works" do
       Structs
       |> stub(:foo, fn -> :stubbed end)

test/support/test_modules.ex

@@ -46,6 +46,12 @@ defmodule Structs do
   def foo, do: nil
 end
 
+defmodule StructNoEnforceKeys do
+  @moduledoc false
+  defstruct [:foo, :bar]
+  def bar, do: nil
+end
+
 defimpl String.Chars, for: Structs do
   def to_string(structs) do
     "{#{structs.foo}} - {#{structs.bar}}"

test/test_helper.exs

@@ -5,4 +5,5 @@ Mimic.copy(NoStubs)
 Mimic.copy(Calculator)
 Mimic.copy(Counter)
 Mimic.copy(Structs)
+Mimic.copy(StructNoEnforceKeys)
 ExUnit.start()