Creating a hashed password for 'blah'

Hashed password is:
$2y$10$74DgRWuPl9OwxVrdtTk/vumzpnPu4MWjt.RC8U3smdfvJ5HFH4m26

Test 1 - using pre-generated hashed password and password 'blah'

Old stored password is:
$2y$10$qoVuaPCost6D8JGqDlpnKe0aNtZwskyGeztLKWZ.dyKGPlIQmtHnW
matches

Test 2 - using newly generated hashed password and password 'blah'

New password is:
$2y$10$74DgRWuPl9OwxVrdtTk/vumzpnPu4MWjt.RC8U3smdfvJ5HFH4m26
matches

Test 3 - using pre-generated hashed password and password 'blech'

NO MATCH

Test 4 - using newly generated hashed password and password 'blech'

NO MATCH