File: 010_feature.t

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#!/usr/bin/perl
use strict;
use warnings;

use FindBin;
use lib "$FindBin::RealBin/../lib";

use Test::More tests => 37;
use Test::Exception;
use Test::Warn;
use Bio::Chado::Schema::Test;

my $schema = Bio::Chado::Schema::Test->init_schema();

my $sf = $schema->resultset('Sequence::Feature');
isa_ok( $sf, 'DBIx::Class::ResultSet' );

$schema->txn_do(sub{
    # try a joined query through one of the longer has_many rels
    lives_ok {
        $sf->search_related('feature_relationship_objects')->count;
    } 'join through a long has_many name does not die';
    $schema->txn_rollback;
});

$schema->txn_do(sub{
    # insert a feature with some sequence
    my $cvterm = $schema->resultset('Cv::Cvterm')
                 ->create_with({
                     name => 'tester',
                     cv   => 'testing cv',
                     db   => 'fake db',
                     dbxref => 'fake accession',
                 });
    my $large_seq_type =
         $schema->resultset('Cv::Cvterm')
                 ->create_with({
                     name => 'large_residues',
                     cv   => 'testing cv',
                     db   => 'fake db',
                     dbxref => 'fake large_residues accession',
                 });

    my $test_seq = 'ACTAGCATCATGCCGCTAGCTAATATGCTG';
    my $grandpa = $schema->resultset('Sequence::Feature')
            ->find_or_create({
                    residues   => $test_seq,
                    seqlen     => length( $test_seq ),
                    name       => 'BCS_grandpa',
                    uniquename => 'BCS_pappy',
                    type       => $cvterm,
                    organism_id=> 4,
            });

    is( $grandpa->subseq( 3, 5 ), 'TAG', 'subseq on regular residues works' );
    is( $grandpa->trunc( 3, 5 )->seq, 'TAG', 'trunc on regular residues works' );

    my $parent = $schema->resultset('Sequence::Feature')
            ->find_or_create({
                    seqlen     => length( $test_seq ),
                    name       => 'BCS_stuff_parent',
                    uniquename => 'BCS_foo',
                    type       => $cvterm,
                    organism_id=> 4,
            });

    $parent->find_or_create_related(
        'featureprops',
        { type  => $large_seq_type,
          value => $test_seq,
        },
       );

    is( $parent->alphabet, 'dna', 'got right alphabet' );
    is( $parent->subseq( 3, 5 ), 'TAG', 'subseq on large_residues prop works' );
    is( $parent->trunc( 3, 5 )->seq, 'TAG', 'subseq on large_residues prop works' );
    is( $parent->trunc( 3, 5 )->id, $parent->name, 'subseq on large_residues has proper name' );

    my $child = $schema->resultset('Sequence::Feature')
            ->find_or_create({
                    residues   => $test_seq,
                    seqlen     => length( $test_seq ),
                    name       => 'BCS_stuff_child',
                    uniquename => 'BCS_foo2',
                    type       => $cvterm,
                    organism_id=> 4,
            });
    my $stepchild = $schema->resultset('Sequence::Feature')
            ->find_or_create({
                    residues   => $test_seq,
                    seqlen     => length( $test_seq ),
                    name       => 'BCS_stepchild',
                    uniquename => 'BCS_step',
                    type       => $cvterm,
                    organism_id=> 4,
            });

    lives_ok(sub {
        $parent->add_to_child_features( $stepchild, { type => $stepchild->type })
    }, 'add_to_child_features');

    lives_ok(sub {
        $parent->add_to_parent_features( $grandpa, { type => $grandpa->type })
    }, 'add_to_parent_features');

    $parent->create_related( 'feature_relationship_subjects', {
            object_id  => $parent->feature_id,
            subject_id => $child->feature_id,
            type       => $parent->type,
    });

    $schema->resultset('Organism::Organism')
            ->find_or_create({ genus => 'test', species => 'testus' })
            ->create_related( 'features', {
                    residues   => $test_seq,
                    seqlen     => length( $test_seq ),
                    name       => 'BCS_test_seq_deleteme',
                    uniquename => 'BCS_test_seq_deleteme',
                    type       => $cvterm,
                    });

    # find a feature with some sequence. might be the one we just
    # inserted.
    my $feature = $sf->search({
                        'residues' => {'!=', undef},
                        'seqlen'   => {'!=', undef},
                        'name'     => {'!=', 'BSC_stuff'},
                    }, { 'rows' => 1 })->single;


    # test some Bio::SeqI methods for it
    for (
        [qw[ length      seqlen    ]],
        [qw[ id          name      ]],
        [qw[ primary_id  name      ]],
        [qw[ residues    seq       ]],
        ) {
        my ($m1,$m2) = @$_;
        is( $feature->$m1, $feature->$m2,
        "$m1() returns same thing as $m2()" );
    }
    can_ok($feature,'child_features');
    can_ok($feature,'parent_features');

    can_ok($feature,'child_relationships');
    can_ok($feature,'parent_relationships');

    my (@children_rels) = $parent->child_relationships;
    my (@parents_rels)  = $parent->parent_relationships;
    isa_ok($children_rels[0], 'Bio::Chado::Schema::Result::Sequence::FeatureRelationship');
    isa_ok($parents_rels[0],  'Bio::Chado::Schema::Result::Sequence::FeatureRelationship');

    isnt($parent->feature_id, $child->feature_id, 'child and parent are different');
    my (@children) = $parent->child_features;
    my (@parents)  = $child->parent_features;

    is(scalar @children, 2, "the parent feature has two child features");
    is(scalar @parents, 1, "the child feature has one parent feature");

    my (@grandparents) = $parent->parent_features;
    my (@grandkids) = $child->child_features;
    is(scalar @grandparents, 1, "the parent feature has one parent feature");
    is(scalar @grandkids, 0, "the child feature has no child feature");

    isa_ok($children[0], 'Bio::Chado::Schema::Result::Sequence::Feature');
    isa_ok($parents[0], 'Bio::Chado::Schema::Result::Sequence::Feature');

    is_deeply( [ map { $_->name } @children ], [ 'BCS_stepchild', 'BCS_stuff_child' ], 'child feature_id is correct' );
    is_deeply( [ map { $_->name } @parents ], [ 'BCS_stuff_parent' ], 'parent feature_id is correct' );

    #test some featureloc stuff
    my $featureloc = $schema->resultset('Sequence::Featureloc')
           ->create({ srcfeature => $grandpa,
                      feature    => $parent,
                      fmin       => 20,
                      fmax       => 28,
                      strand     => 1,
                  });
    is( $featureloc->length, 8, 'got right featureloc length' );

    is( $featureloc->to_range->start,  21, 'featureloc to_range start' );
    is( $featureloc->to_range->end,    28, 'featureloc to_range end' );
    is( $featureloc->to_range->strand,  1, 'featureloc to_range strand' );

    # test the synonyms many-to-many

    is( scalar( $feature->synonyms ), 0, 'synonyms mm rel works' );


    # insert a feature with no seqlen or residues
    { my $no_seq = $schema->resultset('Sequence::Feature')
            ->create({ name => 'mostly_blank',
                       uniquename => 'mostly_blank',
                       organism_id => 4,
                       type => $cvterm,
                     });

      is( $no_seq->subseq(1,0), undef, 'undef for strange subseq on a feature with no residues' );
      is( $no_seq->subseq(1,1), undef, 'slightly different subseq args' );
      is( $no_seq->seqlen, undef, 'undef on seqlen for this also' );
    }

    $schema->txn_rollback;
});