$ASSERTS - QB64Official/qb64 GitHub Wiki
The $ASSERTS metacommand enables debug tests with the _ASSERT macro.
Syntax
$ASSERTS:CONSOLE
Description
- If an error message is passed to the _ASSERT statement, it is displayed in the console window if $ASSERTS:CONSOLE is used.
Availability
- Version 1.4 and up.
Example(s)
Adding test checks for parameter inputs in a function.
$ASSERTS:CONSOLE
DO
a = INT(RND * 10)
b$ = myFunc$(a)
PRINT a, , b$
_LIMIT 3
LOOP UNTIL _KEYHIT
FUNCTION myFunc$ (value AS SINGLE)
_ASSERT value > 0, "Value cannot be zero"
_ASSERT value <= 10, "Value cannot exceed 10"
IF value > 1 THEN plural$ = "s"
myFunc$ = STRING$(value, "*") + STR$(value) + " star" + plural$ + " :-)"
END FUNCTION