fix: modify_config_code twice with keyword values (#332)

* test: modify_config_code twice with keyword values

Author: grzuy

lib/igniter/code/keyword.ex

@@ -167,11 +167,8 @@ defmodule Igniter.Code.Keyword do
                   {{:__block__, [], [key]}, {:__block__, [], [nil]}}
                 end
 
-              [] ->
-                {{:__block__, [format: :keyword], [key]}, {:__block__, [], [nil]}}
-
               _current_node ->
-                {{:__block__, [], [key]}, {:__block__, [], [nil]}}
+                {{:__block__, [format: :keyword], [key]}, {:__block__, [], [nil]}}
             end
 
           {:ok, zipper} =

test/igniter/project/config_test.exs

@@ -699,6 +699,25 @@ defmodule Igniter.Project.ConfigTest do
 
       assert String.contains?(config, "config :fake, foo: [bar: true]")
     end
+
+    test "update existing config twice" do
+      zipper =
+        ~s"""
+        import Config
+        """
+        |> Sourceror.parse_string!()
+        |> Sourceror.Zipper.zip()
+
+      config =
+        zipper
+        |> Igniter.Project.Config.modify_config_code([:a], :app, 1)
+        |> elem(1)
+        |> Igniter.Project.Config.modify_config_code([:b], :app, 2)
+        |> elem(1)
+        |> Igniter.Util.Debug.code_at_node()
+
+      assert String.contains?(config, "config :app, a: 1, b: 2")
+    end
   end
 
   describe "configure_group" do