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.\" ========================================================================
.\"
.IX Title "Test::Base::Filter 3"
.TH Test::Base::Filter 3 "2014-08-24" "perl v5.10.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Test::Base::Filter \- Default Filter Class for Test::Base
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\& package MyTestSuite;
\& use Test::Base \-Base;
\&
\& ... reusable testing code ...
\&
\& package MyTestSuite::Filter;
\& use Test::Base::Filter \-Base;
\&
\& sub my_filter1 {
\& ...
\& }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Filters are the key to writing effective data driven tests with Test::Base.
Test::Base::Filter is a class containing a large default set of generic
filters. You can easily subclass it to add/override functionality.
.SH "FILTERS"
.IX Header "FILTERS"
This is a list of the default stock filters (in alphabetic order):
.ie n .IP """append""" 4
.el .IP "\f(CWappend\fR" 4
.IX Item "append"
list => list
.Sp
Append a string to each element of a list.
.Sp
.Vb 4
\& \-\-\- numbers lines chomp append=\-#\en join
\& one
\& two
\& three
.Ve
.ie n .IP """array""" 4
.el .IP "\f(CWarray\fR" 4
.IX Item "array"
list => scalar
.Sp
Turn a list of values into an anonymous array reference.
.ie n .IP """base64_decode""" 4
.el .IP "\f(CWbase64_decode\fR" 4
.IX Item "base64_decode"
scalar => scalar
.Sp
Decode base64 data. Useful for binary tests.
.ie n .IP """base64_encode""" 4
.el .IP "\f(CWbase64_encode\fR" 4
.IX Item "base64_encode"
scalar => scalar
.Sp
Encode base64 data. Useful for binary tests.
.ie n .IP """chomp""" 4
.el .IP "\f(CWchomp\fR" 4
.IX Item "chomp"
list => list
.Sp
Remove the final newline from each string value in a list.
.ie n .IP """chop""" 4
.el .IP "\f(CWchop\fR" 4
.IX Item "chop"
.PP
list => list
.PP
.Vb 1
\& Remove the final char from each string value in a list.
.Ve
.ie n .IP """dumper""" 4
.el .IP "\f(CWdumper\fR" 4
.IX Item "dumper"
scalar => list
.Sp
Take a data structure (presumably from another filter like eval) and use
Data::Dumper to dump it in a canonical fashion.
.ie n .IP """escape""" 4
.el .IP "\f(CWescape\fR" 4
.IX Item "escape"
scalar => scalar
.Sp
Unescape all backslash escaped chars.
.ie n .IP """eval""" 4
.el .IP "\f(CWeval\fR" 4
.IX Item "eval"
scalar => list
.Sp
Run Perl's \f(CW\*(C`eval\*(C'\fR command against the data and use the returned value
as the data.
.ie n .IP """eval_all""" 4
.el .IP "\f(CWeval_all\fR" 4
.IX Item "eval_all"
scalar => list
.Sp
Run Perl's \f(CW\*(C`eval\*(C'\fR command against the data and return a list of 4 values:
.Sp
.Vb 4
\& 1) The return value
\& 2) The error in $@
\& 3) Captured STDOUT
\& 4) Captured STDERR
.Ve
.ie n .IP """eval_stderr""" 4
.el .IP "\f(CWeval_stderr\fR" 4
.IX Item "eval_stderr"
scalar => scalar
.Sp
Run Perl's \f(CW\*(C`eval\*(C'\fR command against the data and return the captured \s-1STDERR\s0.
.ie n .IP """eval_stdout""" 4
.el .IP "\f(CWeval_stdout\fR" 4
.IX Item "eval_stdout"
scalar => scalar
.Sp
Run Perl's \f(CW\*(C`eval\*(C'\fR command against the data and return the captured \s-1STDOUT\s0.
.ie n .IP """exec_perl_stdout""" 4
.el .IP "\f(CWexec_perl_stdout\fR" 4
.IX Item "exec_perl_stdout"
list => scalar
.Sp
Input Perl code is written to a temp file and run. \s-1STDOUT\s0 is captured
and returned.
.ie n .IP """flatten""" 4
.el .IP "\f(CWflatten\fR" 4
.IX Item "flatten"
scalar => list
.Sp
Takes a hash or array ref and flattens it to a list.
.ie n .IP """get_url""" 4
.el .IP "\f(CWget_url\fR" 4
.IX Item "get_url"
scalar => scalar
.Sp
The text is chomped and considered to be a url. Then LWP::Simple::get is used
to fetch the contents of the url.
.ie n .IP """hash""" 4
.el .IP "\f(CWhash\fR" 4
.IX Item "hash"
list => scalar
.Sp
Turn a list of key/value pairs into an anonymous hash reference.
.ie n .IP """head[=number]""" 4
.el .IP "\f(CWhead[=number]\fR" 4
.IX Item "head[=number]"
list => list
.Sp
Takes a list and returns a number of the elements from the front of it. The
default number is one.
.ie n .IP """join""" 4
.el .IP "\f(CWjoin\fR" 4
.IX Item "join"
list => scalar
.Sp
Join a list of strings into a scalar.
.ie n .IP """Join""" 4
.el .IP "\f(CWJoin\fR" 4
.IX Item "Join"
Join the list of strings inside a list of array refs and return the strings in
place of the array refs.
.ie n .IP """lines""" 4
.el .IP "\f(CWlines\fR" 4
.IX Item "lines"
scalar => list
.Sp
Break the data into an anonymous array of lines. Each line (except
possibly the last one if the \f(CW\*(C`chomp\*(C'\fR filter came first) will have a
newline at the end.
.ie n .IP """norm""" 4
.el .IP "\f(CWnorm\fR" 4
.IX Item "norm"
scalar => scalar
.Sp
Normalize the data. Change non-Unix line endings to Unix line endings.
.ie n .IP """prepend=string""" 4
.el .IP "\f(CWprepend=string\fR" 4
.IX Item "prepend=string"
list => list
.Sp
Prepend a string onto each of a list of strings.
.ie n .IP """read_file""" 4
.el .IP "\f(CWread_file\fR" 4
.IX Item "read_file"
scalar => scalar
.Sp
Read the file named by the current content and return the file's content.
.ie n .IP """regexp[=xism]""" 4
.el .IP "\f(CWregexp[=xism]\fR" 4
.IX Item "regexp[=xism]"
scalar => scalar
.Sp
The \f(CW\*(C`regexp\*(C'\fR filter will turn your data section into a regular expression
object. You can pass in extra flags after an equals sign.
.Sp
If the text contains more than one line and no flags are specified, then the
\&'xism' flags are assumed.
.ie n .IP """reverse""" 4
.el .IP "\f(CWreverse\fR" 4
.IX Item "reverse"
list => list
.Sp
Reverse the elements of a list.
.ie n .IP """Reverse""" 4
.el .IP "\f(CWReverse\fR" 4
.IX Item "Reverse"
list => list
.Sp
Reverse the list of strings inside a list of array refs.
.ie n .IP """slice=x[,y]""" 4
.el .IP "\f(CWslice=x[,y]\fR" 4
.IX Item "slice=x[,y]"
list => list
.Sp
Returns the element number x through element number y of a list.
.ie n .IP """sort""" 4
.el .IP "\f(CWsort\fR" 4
.IX Item "sort"
list => list
.Sp
Sorts the elements of a list in character sort order.
.ie n .IP """Sort""" 4
.el .IP "\f(CWSort\fR" 4
.IX Item "Sort"
list => list
.Sp
Sort the list of strings inside a list of array refs.
.ie n .IP """split[=string|pattern]""" 4
.el .IP "\f(CWsplit[=string|pattern]\fR" 4
.IX Item "split[=string|pattern]"
scalar => list
.Sp
Split a string in into a list. Takes a optional string or regexp as a
parameter. Defaults to \fIs+\fR. Same as Perl \f(CW\*(C`split\*(C'\fR.
.ie n .IP """Split[=string|pattern]""" 4
.el .IP "\f(CWSplit[=string|pattern]\fR" 4
.IX Item "Split[=string|pattern]"
list => list
.Sp
Split each of a list of strings and turn them into array refs.
.ie n .IP """strict""" 4
.el .IP "\f(CWstrict\fR" 4
.IX Item "strict"
scalar => scalar
.Sp
Prepend the string:
.Sp
.Vb 2
\& use strict;
\& use warnings;
.Ve
.Sp
to the block's text.
.ie n .IP """tail[=number]""" 4
.el .IP "\f(CWtail[=number]\fR" 4
.IX Item "tail[=number]"
list => list
.Sp
Return a number of elements from the end of a list. The default number is one.
.ie n .IP """trim""" 4
.el .IP "\f(CWtrim\fR" 4
.IX Item "trim"
list => list
.Sp
Remove extra blank lines from the beginning and end of the data. This allows
you to visually separate your test data with blank lines.
.ie n .IP """unchomp""" 4
.el .IP "\f(CWunchomp\fR" 4
.IX Item "unchomp"
list => list
.Sp
Add a newline to each string value in a list.
.ie n .IP """write_file[=filename]""" 4
.el .IP "\f(CWwrite_file[=filename]\fR" 4
.IX Item "write_file[=filename]"
scalar => scalar
.Sp
Write the content of the section to the named file. Return the filename.
.ie n .IP """yaml""" 4
.el .IP "\f(CWyaml\fR" 4
.IX Item "yaml"
scalar => list
.Sp
Apply the YAML::Load function to the data block and use the resultant
structure. Requires \s-1YAML\s0.pm.
.SH "AUTHOR"
.IX Header "AUTHOR"
Ingy döt Net <ingy@cpan.org>
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2005\-2014. Ingy döt Net. All rights reserved.
.PP
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
.PP
See <http://www.perl.com/perl/misc/Artistic.html>
Copyright 2K16 - 2K18 Indonesian Hacker Rulez
;?>)