add reserved characters encode tests

[fengmk2]

https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_reserved_characters

[fengmk2]

[fengmk2]

[Kezzsim]

Was this ever resolved?
I'm having trouble when my string contains single quote it doesn't know to replace it and that causes issues when I wrap my query in single quotes

[gajraj-gan]

same