-        sys.stderr.write(u'\n"info_dict": ' + json.dumps(test_info_dict, ensure_ascii=False, indent=4) + u'\n')
+        def _repr(v):
+            if isinstance(v, compat_str):
+                return "'%s'" % v.replace('\\', '\\\\').replace("'", "\\'")
+            else:
+                return repr(v)
+        info_dict_str = ''.join(
+            '    %s: %s,\n' % (_repr(k), _repr(v))
+            for k, v in test_info_dict.items())
+        write_string('\n"info_dict": {\n' + info_dict_str + '}\n', out=sys.stderr)