Module-JS1/week-4/implement/password-validator.test.js at b414a812474c996aaef3175381fc7bd6cfc5d9e1 · CodeYourFuture/Module-JS1 · GitHub

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/*
Password Validation

Write a program that should check if a password is valid
and returns a boolean

To be valid, a password must:
- Have at least 5 characters.
- Have at least one English uppercase letter (A-Z)
- Have at least one English lowercase letter (a-z)
- Have at least one number (0-9)
- Have at least one non-alphanumeric symbol ("!", "#", "$", "%", ".", "*", "&")
- Must not be any previous password in the passwords array.

You must breakdown this problem in order to solve it. Find one test case first and get that working
*/
function validPassword(pass){
    if(pass < 5){
        return "Error: Password must have at least 5 characters";
    }
    else if(!/[A-Z]/.test(pass)){
         return "Error: Password must contain at least one uppercase letter (A-Z)";
    }
    else if(!/[a-z]/.test(pass)){
          return "Error: Password must contain at least one lowercase letter (a-z)";
    }
    else if(!/[0-9]/.test(pass)){
         return "Error: Password must contain at least one number(0-9)";
    }
    else if(!/[!#$%.*&]/.test(pass)){
         return "Error: password at least one non-alphanumeric symbol";
    }
    else if(previousPasswords.includes(pass)){
         return "Error: Password must not be any of the previous passwords";
    }
    else{
         return "Password is valid";
    }
}
const previousPasswords = ["Password123!", "abcDE1$", "Valid1$"];
console.log(validPassword("Abcde", previousPasswords));         // "Error: Password must contain at least one number (0-9)"
console.log(validPassword("ABCDE", previousPasswords));         // "Error: Password must contain at least one lowercase letter (a-z)"
console.log(validPassword("abcd1", previousPasswords));         // "Error: Password must have at least 5 characters"
console.log(validPassword("Valid1$", previousPasswords));       // "Error: Password must not be any of the previous passwords"
console.log(validPassword("lowercase1$", previousPasswords));   // "Error: Password must contain at least one uppercase letter (A-Z)"
console.log(validPassword("12345!", previousPasswords));        // "Error: Password must contain at least one uppercase letter (A-Z)"
console.log(validPassword("Valid1$", previousPasswords));       // "Error: Password must not be any of the previous passwords"
console.log(validPassword("NewPass1$", previousPasswords));     // password is valid