test: test isFullWidthCodePoint with invalid input
Checklist
-
make -j4 test
(UNIX) orvcbuild test nosign
(Windows) passes -
a test and/or benchmark is included -
the commit message follows commit guidelines
Affected core subsystem(s)
test readline
Description of change
Code coverage information shows that we are only testing the happy path
for the internal readlind isFullWidthCodePoint()
function. Test it
with invalid input.