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#!perl
#
# tests for "filename," "fh," "data," etc.
#
use strict;
use File::Spec::Functions;
use File::Temp qw( tempfile );
use FindBin qw( $Bin );
use IO::File;
use Readonly;
use Test::Exception;
use Test::More tests => 41;
use Text::RecordParser;
Readonly my $TEST_DATA_DIR => catdir( $Bin, 'data' );
{
my $p = Text::RecordParser->new;
is( $p->filename, '', 'Filename is blank' );
my $file = catfile( $TEST_DATA_DIR, 'simpsons.csv' );
is( $p->filename($file), $file, 'Filename sets OK' );
throws_ok { $p->filename($TEST_DATA_DIR) } qr/cannot use dir/i,
'filename rejects directory for argument';
my $bad_file = catfile( $TEST_DATA_DIR, 'non-existent' );
throws_ok { $p->filename($bad_file) } qr/file does not exist/i,
'filename rejects non-existent file';
my @fields = $p->field_list;
ok( @fields, 'Got field list' );
my $file2 = catfile( $TEST_DATA_DIR, 'simpsons.tab' );
$p->filename( $file2 );
my @fields2 = $p->field_list;
ok( join(',', @fields) ne join(',', @fields2),
'Field list is flushed when resetting filename' );
}
#
# Filehandle tests
#
{
my $p = Text::RecordParser->new;
my $file = catfile( $TEST_DATA_DIR, 'simpsons.csv' );
open my $fh, '<', $file or die "Read of '$file' failed: $!";
is ( ref $p->fh( $fh ), 'GLOB', 'fh is a filehandle' );
# Cause an error by closing the existing fh.
close $fh;
my $tabfile = catfile( $TEST_DATA_DIR, 'simpsons.tab' );
open my $fh2, '<', $tabfile or die "Read of '$tabfile' failed: $!";
throws_ok { $p->fh( $fh2 ) } qr/can't close existing/i,
'fh catches bad close';
throws_ok { $p->fh('') } qr/doesn't look like a filehandle/i,
'fh catches bad arg';
my $file3 = catfile( $TEST_DATA_DIR, 'simpsons.cvs');
my $io = IO::File->new( $file3 );
is ( ref $p->fh( $io ), 'GLOB', 'fh is a filehandle' );
}
{
# cause an error on a closed filehandle
my ( $fh, $filename ) = tempfile();
my $p = Text::RecordParser->new( fh => $fh );
close $fh;
unlink $filename;
my $file = catfile( $TEST_DATA_DIR, 'simpsons.csv' );
throws_ok { $p->filename( $file ) } qr/Can't close previously opened/,
'filename dies trying to close a closed filehandle';
}
{
# cause an error on a disappearing file
my $p = Text::RecordParser->new;
my ( $fh, $filename ) = tempfile();
$p->filename( $filename );
close $fh;
unlink $filename;
throws_ok { my $data = $p->fh } qr/Cannot read '\Q$filename\E'/,
'fh dies on bad file';
}
#
# Data tests
#
{
my $p = Text::RecordParser->new;
throws_ok { $p->data() } qr/without any arguments/,
'data called without args dies';
}
{
my $p = Text::RecordParser->new;
throws_ok { $p->data('') } qr/no usable/i, 'data dies with no usable data';
}
{
my $p = Text::RecordParser->new;
my $scalar = "lname,fname,age\nSmith,Joan,20\nDoe,James,21\n";
$p->data( \$scalar );
$p->bind_header;
my @fields = $p->field_list;
is( scalar @fields, 3, 'data accepted scalar ref' );
}
{
my $p = Text::RecordParser->new;
$p->data( "lname,fname,age\n", "Smith,Joan,20\nDoe,James,21\n" );
$p->bind_header;
my @fields = $p->field_list;
is( scalar @fields, 3, 'data accepted an array' );
}
{
my $p = Text::RecordParser->new;
my @array = ( "lname,fname,age\n", "Smith,Joan,20\nDoe,James,21\n" );
$p->data( \@array );
$p->bind_header;
my @fields = $p->field_list;
is( scalar @fields, 3, 'data accepted an array ref' );
}
{
my $p = Text::RecordParser->new;
my $scalar = "lname,fname,age\nSmith,Joan,20\nDoe,James,21\n";
ok( $p->data( $scalar ), 'data accepts a scalar' );
$p->bind_header;
my @fields = $p->field_list;
is( $fields[0], 'lname', 'lname field' );
is( $fields[1], 'fname', 'fname field' );
is( $fields[2], 'age', 'age field' );
my $rec = $p->fetchrow_hashref;
is( $rec->{'lname'}, 'Smith', 'lname = "Smith"' );
is( $rec->{'fname'}, 'Joan', 'fname = "Joan"' );
is( $rec->{'age'}, '20', 'age = "20"' );
$rec = $p->fetchrow_array;
is( $rec->[0], 'Doe', 'lname = "Doe"' );
is( $rec->[1], 'James', 'fname = "James"' );
is( $rec->[2], '21', 'age = "21"' );
$p->data(
"name\tinstrument\n",
"Miles Davis\ttrumpet\n",
"Art Blakey\tdrums\n"
);
$p->field_separator("\t");
$p->bind_header;
@fields = $p->field_list;
is( $fields[0], 'name', 'name field' );
is( $fields[1], 'instrument', 'instrument field' );
$rec = $p->fetchrow_array;
is( $rec->[0], 'Miles Davis', 'name = "Miles Davis"' );
is( $rec->[1], 'trumpet', 'instrument = "trumpet"' );
$rec = $p->fetchrow_hashref;
is( $rec->{'name'}, 'Art Blakey', 'name = "Art Blakey"' );
is( $rec->{'instrument'}, 'drums', 'instrument = "drums"' );
my $filename = "$Bin/data/simpsons.csv";
open my $fh, "<$filename" or die "Can't read '$filename': $!";
is ( $p->data( $fh ), 1, 'data accepts a filehandle' );
is ( UNIVERSAL::isa( $p->fh, 'GLOB' ), 1, 'fh is a GLOB' );
}
{
my $p = Text::RecordParser->new(
data => "lname,fname,age\nSmith,Joan,20\nDoe,James,21\n"
);
$p->bind_header;
my @fields = $p->field_list;
is( $fields[0], 'lname', 'lname field' );
is( $fields[1], 'fname', 'fname field' );
is( $fields[2], 'age', 'age field' );
my $rec = $p->fetchrow_hashref;
is( $rec->{'lname'}, 'Smith', 'lname = "Smith"' );
is( $rec->{'fname'}, 'Joan', 'fname = "Joan"' );
is( $rec->{'age'}, '20', 'age = "20"' );
}
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