PassValidator Kata

Now, we’re going to implement a less academic exercise to reinforce our knowledge of TDD. The exercise is the Password Validation kata. Theoretically, this function could be invoked to validate the user’s password in a registration form. It will accept a password as the input, and it returns a bool value indicating whether the validation succeeded along with the reasons why the validation failed. A password is valid only if it meets all the following constraints:

• It must be at least eight characters long.
• It must contain at least two numbers.
• It must contain at least one capital letter.
• It must contain at least one special character.

In addition, the function must be ...