Your very first task is to create a registration and login feature. This feature needs to allow usersto $($Read through the entire task before you start any work$)$:

$1.$Create an account by entering username, password, first name and last name.

a$.$ The system needs to check that the following conditions are met, and reply with theappropriate output message:

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Conditions

Messages

True

False

Username contains an underscore and is nomore than $5$ characters long

Usernamesuccessfullycaptured

Username is notcorrectly formatted,please ensure thatyour usernamecontains anunderscore and is nomore than $5$characters in length $.$

Password meets the following passwordcomplexity rules, the password must be:

At least $8$ characters long

Contain a capital letter

Contain a number

Contain a special character

Passwordsuccessfullycaptured

Password is notcorrectly formatted,please ensure thatthe passwordcontains at least $8$characters, a capitalletter, a number anda special character.

$2.$Login to the account using the same username and password.

a$.$ The system should provide the following messages to verify the users authenticationstate:

Conditions

Messages

True

False

The entered username and password arecorrect, and the user is able to log in$.$

Welcome $,$ it is great tosee you again.

Username orpassword incorrect,please try again

$3.$ You will need to implement aLoginclass with the following methods to ensure that yourapplication meets good coding standards and that the code you write is testable.

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Method Name

Method Functionality

Boolean: checkUserName$()$

This method ensures that any username contains an underscore $(\_)$ and is no more than

Boolean:checkPasswordComplexity$()$

This method ensures that passwords meet the followingpassword complexity rules, the password must be:

At least eight characters long.

Contain a capital letter

Contain a number

Contain a special character

String registerUser$()$

This method returns the necessary registration messagingindicating if:

The username is incorrectly formatted

The password does not meet the complexityrequirements.

The two above conditions have been met and the userhas been registered successfully.

Boolean loginUser$()$

This method verifies that the login details entered matchesthe login details stored when the user registers.

String returnLoginStatus

This method returns the necessary messaging for:

A successful login

A failed login

$4.$ It is good practice to never push code that has not been tested, you will need to create thefollowing unit tests to verify that your methods are executing as expected:

Test: $($assertEquals$)$

Test Data and expected system responses.

Username is correctly formatted:

The username contains an underscore and is nomore than $5$ characters long

Test Data: kyl$\_1$

The system returns:

Welcome $,$it is great to see you.

Username incorrectly formatted:

Test Data: kyle!!!!!!!

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The username does not contain an underscoreand is no more than $5$ characters long

The system returns:

Username is not correctly formatted, pleaseensure that your username contains anunderscore and is no more than $5$ characters inlength.

The password meets the complexityrequirements

Test Data: Ch&&sec@ke$99!$

The system returns:

Password successfully captured

The passworddoes notmeet the complexityrequirements

Test Data: password

The system returns:

Password is not correctly formatted, pleaseensure that the password contains at least $8$characters, a capital letter, a number and aspecial character.

Test $($assertTrue$/$False$)$

Login Successful

The system returns:

True

Login Failed

The system returns:

False

Username correctly formatted

The system returns:

True

Username incorrectly formatted

The system returns:

False

Password meets complexity requirements

The system returns:

True

Password does not meet complexityrequirements

The system returns:

False