NAME¶
Test::RDF - Test RDF data for content, validity and equality, etc.
VERSION¶
Version 0.26
SYNOPSIS¶
use Test::RDF;
is_valid_rdf($rdf_string, $syntax, 'RDF string is valid according to selected syntax');
is_rdf($rdf_string, $syntax1, $expected_rdf_string, $syntax2, 'The two strings have the same triples');
isomorph_graphs($model, $expected_model, 'The two models have the same triples');
are_subgraphs($model1, $model2, 'Model 1 is a subgraph of model 2' );
has_uri($uri_string, $model, 'Has correct URI');
hasnt_uri($uri_string, $model, "Hasn't correct URI");
has_subject($uri_string, $model, 'Subject URI is found');
has_predicate($uri_string, $model, 'Predicate URI is found');
has_object_uri($uri_string, $model, 'Object URI is found');
has_literal($string, $language, $datatype, $model, 'Literal is found');
pattern_target($model);
pattern_ok($pattern, '$pattern found in $model');
EXPORT¶
is_valid_rdf¶
Use to check if the input RDF string is valid in the chosen syntax
is_rdf¶
Use to check if the input RDF strings are isomorphic (i.e. the same).
isomorph_graphs¶
Use to check if the input RDF::Trine::Models have isomorphic graphs.
are_subgraphs¶
Use to check if the first RDF::Trine::Models is a subgraph of the second.
has_subject¶
Check if the string URI passed as first argument is a subject in any of the
statements given in the model given as second argument.
has_predicate¶
Check if the string URI passed as first argument is a predicate in any of the
statements given in the model given as second argument.
has_object_uri¶
Check if the string URI passed as first argument is a object in any of the
statements given in the model given as second argument.
has_literal¶
Check if the string passed as first argument, with corresponding optional
language and datatype as second and third respectively, is a literal in any of
the statements given in the model given as fourth argument.
language and datatype may not occur in the same statement, so the test fails if
they are both set. If none are used, use "undef", like e.g.
has_literal('A test', undef, undef, $model, 'Simple literal');
A test for a typed literal may be done like
has_literal('42', undef, 'http://www.w3.org/2001/XMLSchema#integer', $model, 'Just an integer');
and a language literal like
has_literal('This is a Another test', 'en', undef, $model, 'Language literal');
has_uri¶
Check if the string URI passed as first argument is present in any of the
statements given in the model given as second argument.
hasnt_uri¶
Check if the string URI passed as first argument is not present in any of the
statements given in the model given as second argument.
pattern_target¶
Tests that the object passed as its parameter is an RDF::Trine::Model or
RDF::Trine::Store. That is, tests that it is a valid thing to match basic
graph patterns against.
Additionally, this test establishes the target for future "pattern_ok"
tests.
pattern_ok¶
Tests that the pattern passed matches against the target established by
"pattern_target". The pattern may be passed as an
RDF::Trine::Pattern, or a list of RDF::Trine::Statement objects.
use Test::RDF;
use RDF::Trine qw[iri literal blank variable statement];
use My::Module;
my $foaf = RDF::Trine::Namespace->new('http://xmlns.com/foaf/0.1/');
pattern_target(My::Module->get_model); # check isa RDF::Trine::Model
pattern_ok(
statement(
variable('who'),
$foaf->name,
literal('Kjetil Kjernsmo')
),
statement(
variable('who'),
$foaf->page,
iri('http://search.cpan.org/~kjetilk/')
),
"Data contains Kjetil's details."
);
Note: "pattern_target" must have been tested before any
"pattern_ok" tests.
NOTE¶
Graph isomorphism is a complex problem, so do not attempt to run the isomorphism
tests on large datasets. For more information see
<
http://en.wikipedia.org/wiki/Graph_isomorphism_problem>.
AUTHOR¶
Kjetil Kjernsmo, "<kjetilk at cpan.org>"
BUGS¶
Please report any bugs using github
<
https://github.com/kjetilk/Test-RDF/issues>
SUPPORT¶
You can find documentation for this module with the perldoc command.
perldoc Test::RDF
You may find the Perl and RDF community website <
http://www.perlrdf.org/>
useful.
You can also look for information at:
- •
- AnnoCPAN: Annotated CPAN documentation
http://annocpan.org/dist/Test-RDF
<http://annocpan.org/dist/Test-RDF>
- •
- CPAN Ratings
http://cpanratings.perl.org/d/Test-RDF
<http://cpanratings.perl.org/d/Test-RDF>
- •
- Search CPAN
http://search.cpan.org/dist/Test-RDF/
<http://search.cpan.org/dist/Test-RDF/>
- •
- MetaCPAN
<https://metacpan.org/module/Test::RDF>
ACKNOWLEDGEMENTS¶
Michael Hendricks wrote the first Test::RDF. The present module is a complete
rewrite from scratch using Gregory Todd William's RDF::Trine::Graph to do the
heavy lifting.
Toby Inkster has submitted the pattern_* functions.
LICENSE AND COPYRIGHT¶
Copyright 2010 ABC Startsiden AS and 2010-2012 Kjetil Kjernsmo.
This program is free software; you can redistribute it and/or modify it under
the terms of either: the GNU General Public License as published by the Free
Software Foundation; or the Artistic License.
See
http://dev.perl.org/licenses/ for more information.