Import test codes from https://github.com/sisimai/p5-Sisimai/commit/a468f93e340a840ca7e0b2eb3055964775942f85
Import test codes from https://github.com/sisimai/p5-Sisimai/commit/a468f93e340a840ca7e0b2eb3055964775942f85

azumakuniyuki/rb-Sisimai,azumakuniyuki/rb-Sisimai