Practice 02 · Email & phone format validation

Junior ⏱ ~12 min 🐛 5 bugs planted

The card below is the “product under test”. Use guided mode to see the bug list upfront, or blind mode to find them yourself first.

Techniques: Boundary value analysis, Error guessing

Contact us

We’ll get back to you within one business day.

We accept business email addresses only.
Format: 10 digits, no spaces.

Fixed version (reference)

This shows correct NZ phone validation — compare with the buggy form above.

Accepts NZ mobile (021/022/027), landline (04/09/03 etc), and 0800 numbers

Your findings

0 / 0 bugs found

Tick each bug as you confirm it on the page above. Progress saves automatically.