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#!/usr/local/bin/perl
#
# $Id: 40nulls.t 1.1 Tue, 30 Sep 1997 01:28:08 +0200 joe $
#
# This is a test for correctly handling NULL values.
#
#
# Make -w happy
#
$test_dsn = '';
$test_user = '';
$test_password = '';
#
# Include lib.pl
#
use DBI;
use vars qw($COL_NULLABLE);
$mdriver = "";
foreach $file ("lib.pl", "t/lib.pl") {
do $file; if ($@) { print STDERR "Error while executing lib.pl: $@\n";
exit 10;
}
if ($mdriver ne '') {
last;
}
}
sub ServerError() {
print STDERR ("Cannot connect: ", $DBI::errstr, "\n",
"\tEither your server is not up and running or you have no\n",
"\tpermissions for acessing the DSN $test_dsn.\n",
"\tThis test requires a running server and write permissions.\n",
"\tPlease make sure your server is running and you have\n",
"\tpermissions, then retry.\n");
exit 10;
}
#
# Main loop; leave this untouched, put tests after creating
# the new table.
#
while (Testing()) {
#
# Connect to the database
Test($state or $dbh = DBI->connect($test_dsn, $test_user, $test_password))
or ServerError();
#
# Find a possible new table name
#
Test($state or $table = FindNewTable($dbh))
or DbiError($dbh->err, $dbh->errstr);
#
# Create a new table; EDIT THIS!
#
Test($state or ($def = TableDefinition($table,
["id", "INTEGER", 4, $COL_NULLABLE],
["name", "CHAR", 64, 0]),
$dbh->do($def)))
or DbiError($dbh->err, $dbh->errstr);
#
# Test whether or not a field containing a NULL is returned correctly
# as undef, or something much more bizarre
#
Test($state or $dbh->do("INSERT INTO $table VALUES"
. " ( NULL, 'NULL-valued id' )"))
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor = $dbh->prepare("SELECT * FROM $table"
. " WHERE " . IsNull("id")))
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor->execute)
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($rv = $cursor->fetchrow_arrayref) or $dbdriver eq 'CSV'
or $dbdriver eq 'ConfFile')
or DbiError($dbh->err, $dbh->errstr);
Test($state or (!defined($$rv[0]) and defined($$rv[1])) or
$dbdriver eq 'CSV' or $dbdriver eq 'ConfFile')
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor->finish)
or DbiError($dbh->err, $dbh->errstr);
Test($state or undef $cursor || 1);
#
# Finally drop the test table.
#
Test($state or $dbh->do("DROP TABLE $table"))
or DbiError($dbh->err, $dbh->errstr);
}
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