1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/test/cases/fixtures_test.rb b/activerecord/test/cases/fixtures_test.rb
index bedb26f28d..182f4f0f0b 100755
--- a/activerecord/test/cases/fixtures_test.rb
+++ b/activerecord/test/cases/fixtures_test.rb
@@ -180,7 +180,9 @@ class FixturesTest < ActiveRecord::TestCase
 
   def test_binary_in_fixtures
     assert_equal 1, @binaries.size
-    data = File.open(ASSETS_ROOT + "/flowers.jpg", "rb").read.freeze
+    data = File.read(ASSETS_ROOT + "/flowers.jpg")
+    data.force_encoding('ASCII-8BIT') if data.respond_to?(:force_encoding)
+    data.freeze
     assert_equal data, @flowers.data
   end
 end