The goal of this issue is to implement a UserService class that provides methods for user registration and login. This service will interact with our Cassandra database through the UserRepository interface.
Tasks:
Create UserService Class: Create a UserService class in the 'service' folder. This class should have a UserRepository field that is autowired in its constructor.
Implement Register Method: Implement a register(User user) method in UserService. This method should:
Check if a user with the same username already exists in the database.
If the username is not taken, save the new user to the database.
Return the saved user.
Throw an exception if the username is already taken.
Implement Login Method: Implement a login(String username, String password) method in UserService. This method should:
Retrieve the user with the given username from the database.
Check if the provided password matches the user's password.
Return the user if the password matches.
Throw an exception if the password does not match or if the username does not exist.
Write Unit Tests: Write unit tests for the register and login methods using JUnit and Mockito. Make sure to test both the expected behavior and error conditions.
Acceptance Criteria:
The UserService class is implemented with register and login methods.
The register method correctly creates a new user in the database if the username is not taken, and throws an exception if the username is already taken.
The login method correctly retrieves a user from the database and checks the password, throwing an exception if the password does not match or if the username does not exist.
Description:
The goal of this issue is to implement a
UserServiceclass that provides methods for user registration and login. This service will interact with our Cassandra database through theUserRepositoryinterface.Tasks:
Create UserService Class: Create a
UserServiceclass in the 'service' folder. This class should have aUserRepositoryfield that is autowired in its constructor.Implement Register Method: Implement a
register(User user)method inUserService. This method should:Implement Login Method: Implement a
login(String username, String password)method inUserService. This method should:Write Unit Tests: Write unit tests for the
registerandloginmethods using JUnit and Mockito. Make sure to test both the expected behavior and error conditions.Acceptance Criteria:
UserServiceclass is implemented withregisterandloginmethods.registermethod correctly creates a new user in the database if the username is not taken, and throws an exception if the username is already taken.loginmethod correctly retrieves a user from the database and checks the password, throwing an exception if the password does not match or if the username does not exist.registerandloginmethods pass.