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#!/usr/local/bin/perl
#
# $Id: 40numrows.t 1.1 Tue, 30 Sep 1997 01:28:08 +0200 joe $
#
# This tests, whether the number of rows can be retrieved.
#
$^W = 1;
$| = 1;
#
# Make -w happy
#
$test_dsn = '';
$test_user = '';
$test_password = '';
#
# Include lib.pl
#
use DBI;
$mdriver = "";
foreach $file ("lib.pl", "t/lib.pl", "DBD-~DBD_DRIVER~/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 $test_dsn.\n",
"\tThis test requires a running server and write permissions.\n",
"\tPlease make sure your server is running and you have\n",
"\tpermissions, then retry.\n");
exit 10;
}
sub TrueRows($) {
my ($sth) = @_;
my $count = 0;
while ($sth->fetchrow_arrayref) {
++$count;
}
$count;
}
#
# Main loop; leave this untouched, put tests after creating
# the new table.
#
while (Testing()) {
#
# Connect to the database
Test($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, 0],
["name", "CHAR", 64, 0]),
$dbh->do($def)))
or DbiError($dbh->err, $dbh->errstr);
#
# This section should exercise the sth->rows
# method by preparing a statement, then finding the
# number of rows within it.
# Prior to execution, this should fail. After execution, the
# number of rows affected by the statement will be returned.
#
Test($state or $dbh->do("INSERT INTO $table"
. " VALUES( 1, 'Alligator Descartes' )"))
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($cursor = $dbh->prepare("SELECT * FROM $table"
. " WHERE id = 1")))
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor->execute)
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($numrows = $cursor->rows) == 1 or ($numrows == -1))
or ErrMsgF("Expected 1 rows, got %s.\n", $numrows);
Test($state or ($numrows = TrueRows($cursor)) == 1)
or ErrMsgF("Expected to fetch 1 rows, got %s.\n", $numrows);
Test($state or $cursor->finish)
or DbiError($dbh->err, $dbh->errstr);
Test($state or undef $cursor or 1);
Test($state or $dbh->do("INSERT INTO $table"
. " VALUES( 2, 'Jochen Wiedmann' )"))
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($cursor = $dbh->prepare("SELECT * FROM $table"
. " WHERE id >= 1")))
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor->execute)
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($numrows = $cursor->rows) == 2 or ($numrows == -1))
or ErrMsgF("Expected 2 rows, got %s.\n", $numrows);
Test($state or ($numrows = TrueRows($cursor)) == 2)
or ErrMsgF("Expected to fetch 2 rows, got %s.\n", $numrows);
Test($state or $cursor->finish)
or DbiError($dbh->err, $dbh->errstr);
Test($state or undef $cursor or 1);
Test($state or $dbh->do("INSERT INTO $table"
. " VALUES(3, 'Tim Bunce')"))
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($cursor = $dbh->prepare("SELECT * FROM $table"
. " WHERE id >= 2")))
or DbiError($dbh->err, $dbh->errstr);
Test($state or $cursor->execute)
or DbiError($dbh->err, $dbh->errstr);
Test($state or ($numrows = $cursor->rows) == 2 or ($numrows == -1))
or ErrMsgF("Expected 2 rows, got %s.\n", $numrows);
Test($state or ($numrows = TrueRows($cursor)) == 2)
or ErrMsgF("Expected to fetch 2 rows, got %s.\n", $numrows);
Test($state or $cursor->finish)
or DbiError($dbh->err, $dbh->errstr);
Test($state or undef $cursor or 1);
#
# Finally drop the test table.
#
Test($state or $dbh->do("DROP TABLE $table"))
or DbiError($dbh->err, $dbh->errstr);
}
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