test: refactor Paths

test/helpers.lua

@@ -19,6 +19,7 @@ end
 --- @class test.helpers
 local module = {
   REMOVE_THIS = {},
+  paths = Paths,
 }
 
 --- @param p string
@@ -952,6 +953,4 @@ function module.mkdir(path)
   return uv.fs_mkdir(path, 493)
 end
 
-module = vim.tbl_extend('error', module, Paths)
-
 return module