1 files changed, 72 insertions, 0 deletions
diff --git a/actionpack/test/controller/new_base/render_file_test.rb b/actionpack/test/controller/new_base/render_file_test.rb
new file mode 100644
index 0000000000..de8af029e0
--- /dev/null
+++ b/actionpack/test/controller/new_base/render_file_test.rb
@@ -0,0 +1,72 @@
+# frozen_string_literal: true
+
+require "abstract_unit"
+
+module RenderFile
+  class BasicController < ActionController::Base
+    self.view_paths = __dir__
+
+    def index
+      render file: File.expand_path("../../fixtures/test/hello_world", __dir__)
+    end
+
+    def with_instance_variables
+      @secret = "in the sauce"
+      render file: File.expand_path("../../fixtures/test/render_file_with_ivar", __dir__)
+    end
+
+    def relative_path
+      @secret = "in the sauce"
+      render file: "../../fixtures/test/render_file_with_ivar"
+    end
+
+    def relative_path_with_dot
+      @secret = "in the sauce"
+      render file: "../../fixtures/test/dot.directory/render_file_with_ivar"
+    end
+
+    def pathname
+      @secret = "in the sauce"
+      render file: Pathname.new(__dir__).join(*%w[.. .. fixtures test dot.directory render_file_with_ivar])
+    end
+
+    def with_locals
+      path = File.expand_path("../../fixtures/test/render_file_with_locals", __dir__)
+      render file: path, locals: { secret: "in the sauce" }
+    end
+  end
+
+  class TestBasic < Rack::TestCase
+    testing RenderFile::BasicController
+
+    test "rendering simple template" do
+      get :index
+      assert_response "Hello world!"
+    end
+
+    test "rendering template with ivar" do
+      get :with_instance_variables
+      assert_response "The secret is in the sauce\n"
+    end
+
+    test "rendering a relative path" do
+      get :relative_path
+      assert_response "The secret is in the sauce\n"
+    end
+
+    test "rendering a relative path with dot" do
+      get :relative_path_with_dot
+      assert_response "The secret is in the sauce\n"
+    end
+
+    test "rendering a Pathname" do
+      get :pathname
+      assert_response "The secret is in the sauce\n"
+    end
+
+    test "rendering file with locals" do
+      get :with_locals
+      assert_response "The secret is in the sauce\n"
+    end
+  end
+end