[Problem] Checking credentials #51
Description
Checking credentials
Input: 1 email, 2 password.
Email must be in appropriate format.
Password must have a mixture of both uppercase and lowercase letters, a mixture of letters and numbers, 1 special character, and 1 number. Password must be longer than 7 digits.
Write functions to check if email and password requirements are satisfied.
Write unit test for different combinations and make sure that it works as expected.