assert
let failwith: <a, b>(_: a) => b
Cause the testing framework to fail.let assert: (_: bool) => unit
The call assert(cond) terminates the execution with the string
"failed assertion" if, and only if, the boolean condition cond
is false. The failure is handled by LIGO's testing framework and
not by Michelson's interpreter.
let some: <a>(_: option<a>) => unit
The call some(opt) terminates the execution with the
string "failed assert some" if, and only if, opt is None().
The failure is handled by LIGO's testing framework and
not by Michelson's interpreter.
let none: <a>(_: option<a>) => unit
The call none(opt) terminates the execution with the string
"failed assert none" if, and only if, opt is not None().
The failure is handled by LIGO's testing framework and
not by Michelson's interpreter.