test/test_helper.rb in roo-2.7.1 vs test/test_helper.rb in roo-2.8.0

@@ -152,5 +152,18 @@
 
 def skip_jruby_incompatible_test
   msg = "This test uses a feature incompatible with JRuby"
   skip(msg) if defined?(JRUBY_VERSION)
 end
+
+def with_timezone(new_tz)
+  if new_tz
+    begin
+      prev_tz, ENV['TZ'] = ENV['TZ'], new_tz
+      yield
+    ensure
+      ENV['TZ'] = prev_tz
+    end
+  else
+    yield
+  end
+end