Add tests for 1.1.19、1.1.20 and 1.1.21 of cis-1.5 (#641)

* Add tests for 1.1.19、1.1.20 and 1.1.21 of cis-1.5

* Avoid division by 0

* Use bitmask instead of lte

* Change to use multiple values via `use_multiple_values: true`

* Use find in 1.1.20 and 1.1.21