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.\" ========================================================================
.\"
.IX Title "Test::Tolerant 3pm"
.TH Test::Tolerant 3pm "2016-02-22" "perl v5.22.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Test::Tolerant \- test routines for testing numbers against tolerances
.SH "VERSION"
.IX Header "VERSION"
version 1.708
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  use Test::More;
\&  use Test::Tolerant;
\&
\&  my $total = rand(6) + rand(6) + rand(6);
\&  is_tol(10, [ qw( 3 to 18 ) ], "got an acceptable result from random dice");
\&
\&  done_testing;
.Ve
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
.SS "is_tol"
.IX Subsection "is_tol"
.Vb 1
\&  is_tol($have, $want_spec, $comment);
.Ve
.PP
\&\f(CW\*(C`is_tol\*(C'\fR is the only routine provided by Test::Tolerant, and is exported by
default.  It beahves like \f(CW\*(C`is\*(C'\fR from Test::More, asserting
that two values must be equal, but it will always use numeric equality, and the
second argument is not always used as the right hand side of comparison
directly, but it used to produce a Number::Tolerant to compare to.
.PP
\&\f(CW$have_spec\fR can be:
.PP
.Vb 4
\&  * a Number::Tolerant object
\&  * an arrayref of args to Number::Tolerant\->new
\&  * a string to be passed to Number::Tolerant\->from_string
\&    * a literal number falls under this group
.Ve
.PP
If the value is outside of spec, you'll get a diagnostic message something like
this:
.PP
.Vb 3
\&  given value is outside acceptable tolerances
\&      have: 3
\&      want: 5 < x
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Ricardo Signes <rjbs@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2004 by Ricardo Signes.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.