Test::Data::Scalar -- test functions for scalar variables
use Test::Data qw(Scalar);
This modules provides a collection of test utilities for scalar
variables. Load the module through Test::Data.
- blessed_ok(
SCALAR )
- Ok if the SCALAR is a blessed reference.
- defined_ok(
SCALAR )
- Ok if the SCALAR is defined.
- undef_ok( SCALAR
)
- Ok if the SCALAR is undefined.
- dualvar_ok(
SCALAR )
- Ok if the scalar is a dualvar.
How do I test this?
- greater_than(
SCALAR, BOUND )
- Ok if the SCALAR is numerically greater than BOUND.
- length_ok( SCALAR,
LENGTH )
- Ok if the length of SCALAR is LENGTH.
- less_than( SCALAR,
BOUND )
- Ok if the SCALAR is numerically less than BOUND.
- maxlength_ok(
SCALAR, LENGTH )
- Ok is the length of SCALAR is less than or equal to LENGTH.
- minlength_ok(
SCALAR, LENGTH )
- Ok is the length of SCALAR is greater than or equal to LENGTH.
- number_ok( SCALAR
)
- Ok if the SCALAR is a number ( or a string that represents a number ).
At the moment, a number is just a string of digits. This needs
work.
- number_between_ok(
SCALAR, LOWER, UPPER )
- Ok if the number in SCALAR sorts between the number in LOWER and the
number in UPPER, numerically.
If you put something that isn't a number into UPPER or LOWER,
Perl will try to make it into a number and you may get unexpected
results.
- string_between_ok(
SCALAR, LOWER, UPPER )
- Ok if the string in SCALAR sorts between the string in LOWER and the
string in UPPER, ASCII-betically.
- readonly_ok(
SCALAR )
- Ok is the SCALAR is read-only.
- ref_ok( SCALAR
)
- Ok if the SCALAR is a reference.
- ref_type_ok(
REF1, REF2 )
- Ok if REF1 is the same reference type as REF2.
- strong_ok( SCALAR
)
- Ok is the SCALAR is not a weak reference.
- tainted_ok(
SCALAR )
- Ok is the SCALAR is tainted.
(Tainted values may seem like a not-Ok thing, but remember,
when you use taint checking, you want Perl to taint data, so you should
have a test to make sure it happens.)
- untainted_ok(
SCALAR )
- Ok if the SCALAR is not tainted.
- weak_ok( SCALAR
)
- Ok if the SCALAR is a weak reference.
* add is_a_filehandle test
* add is_vstring test
Scalar::Util, Test::Data, Test::Data::Array, Test::Data::Function,
Test::Data::Hash, Test::Builder
This source is in Github:
https://github.com/briandfoy/test-data
brian d foy,
"<briandfoy@pobox.com>"
Copyright © 2002-2025, brian d foy
<briandfoy@pobox.com>. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the terms of the Artistic License 2.0.