test/test_06_extsst.rb in writeexcel-0.6.6 vs test/test_06_extsst.rb in writeexcel-0.6.7

@@ -64,10 +64,10 @@
       workbook.not_using_tmpfile
 
       str_unique = test[0]
 
       workbook.str_unique = str_unique
-      workbook.calculate_extsst_size
+      workbook.__send__("calculate_extsst_size")
 
       assert_equal(test[1], workbook.extsst_buckets,
         " \tBucket number for #{str_unique}  strings")
       assert_equal(test[2], workbook.extsst_bucket_size,
         " \tBucket size for #{str_unique}  strings")