1 files changed, 19 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/runner_test.rb b/actionpack/test/dispatch/runner_test.rb
new file mode 100644
index 0000000000..f16c7963af
--- /dev/null
+++ b/actionpack/test/dispatch/runner_test.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require "abstract_unit"
+
+class RunnerTest < ActiveSupport::TestCase
+  test "runner preserves the setting of integration_session" do
+    runner = Class.new do
+      def before_setup
+      end
+    end.new
+
+    runner.extend(ActionDispatch::Integration::Runner)
+    runner.integration_session.host! "lvh.me"
+
+    runner.before_setup
+
+    assert_equal "lvh.me", runner.integration_session.host
+  end
+end