diff --git a/test/test_helper.rb b/test/test_helper.rb
index 3afc8057..aee4d84e 100755
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -37,8 +37,16 @@ module Minitest
   module Assertions
     include Liquid
 
-    def assert_template_result(expected, template, assigns = {}, message: nil)
-      assert_equal(expected, Template.parse(template, line_numbers: true).render!(assigns), message)
+    def assert_template_result(
+      expected, template, assigns = {},
+      message: nil, partials: nil, error_mode: nil, render_errors: false
+    )
+      template = Liquid::Template.parse(template, line_numbers: true, error_mode: error_mode&.to_sym)
+      file_system = StubFileSystem.new(partials) if partials
+      registers = Liquid::Registers.new(file_system: file_system)
+      context = Liquid::Context.build(environments: assigns, rethrow_errors: !render_errors, registers: registers)
+      output = template.render(context)
+      assert_equal(expected, output, message)
     end
 
     def assert_match_syntax_error(match, template)