1..10
ok 1 - Test that '1' is VALID
ok 2 - Test that '0' is VALID
ok 3 - Test that 'NaN' is INVALID
ok 4 - Test that 'Infinity' is INVALID
ok 5 - Test that '-123.' is INVALID
ok 6 - Test that '-123. ' is INVALID
ok 7 - Test that '-123.0' is VALID
ok 8 - Test that '-123 ' is INVALID
not ok 9 - Test that '000' is INVALID
#   Failed test 'Test that '000' is INVALID'
#   at ./pm_11146401_is_number.pl line 42.
#          got: '1'
#     expected: ''
not ok 10 - Test that '007' is INVALID
#   Failed test 'Test that '007' is INVALID'
#   at ./pm_11146401_is_number.pl line 42.
#          got: '1'
#     expected: ''
# Looks like you failed 2 tests of 10.