1 files changed, 26 insertions, 0 deletions
diff --git a/activerecord/test/cases/reload_models_test.rb b/activerecord/test/cases/reload_models_test.rb
new file mode 100644
index 0000000000..72f4bfaf6d
--- /dev/null
+++ b/activerecord/test/cases/reload_models_test.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require "cases/helper"
+require "models/owner"
+require "models/pet"
+
+class ReloadModelsTest < ActiveRecord::TestCase
+  include ActiveSupport::Testing::Isolation
+
+  fixtures :pets, :owners
+
+  def test_has_one_with_reload
+    pet = Pet.find_by_name("parrot")
+    pet.owner = Owner.find_by_name("ashley")
+
+    # Reload the class Owner, simulating auto-reloading of model classes in a
+    # development environment. Note that meanwhile the class Pet is not
+    # reloaded, simulating a class that is present in a plugin.
+    Object.class_eval { remove_const :Owner }
+    Kernel.load(File.expand_path("../models/owner.rb", __dir__))
+
+    pet = Pet.find_by_name("parrot")
+    pet.owner = Owner.find_by_name("ashley")
+    assert_equal pet.owner, Owner.find_by_name("ashley")
+  end
+end unless in_memory_db?