Creating a hashed password for 'blah'

Hashed password is:
$2y$10$jQdH1XST8Yt34u9/LR806.HAGc.fPcSzhViMXi2i287KtvGCuJTq2

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$10$jQdH1XST8Yt34u9/LR806.HAGc.fPcSzhViMXi2i287KtvGCuJTq2
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