UserDaoImpl #6 Done

app/src/main/java/com/me/registrationtask/MainActivity.kt

@@ -8,6 +8,5 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
-
     }
 }

app/src/main/java/com/me/registrationtask/UserDaoImpl.kt

@@ -0,0 +1,32 @@
+package com.me.registrationtask
+
+import com.me.registrationtask.db.UserDao
+import com.me.registrationtask.module.UserEntity
+
+class UserDaoImpl : UserDao {
+
+    //    AN ARRAYLIST THAT IS OF THE TYPE UserEntity
+    private val mArrayList: ArrayList<UserEntity> = ArrayList()
+
+
+    //    THE IMPORTED FUNCTION FROM THE UserDao INTERFACE
+    override fun saveUser(user: UserEntity) {
+
+//    ADDED THE USER DATA TO THE ARRAYLIST
+        mArrayList.add(user)
+    }
+
+    override fun getUser(username: String, password: String): UserEntity {
+
+//        FROM THE ARRAYLIST FIND THE USERNAME AND PASSWORD PARAMETER
+        val findingUser = mArrayList.find { it.username == username && it.password == password }
+
+//        IF ITS NOT FOUND, THROW AN EXCEPTION
+        if (findingUser == null) throw NullPointerException("User Not Found")
+
+//        ELSE RETURN THE VARIABLE
+        else return findingUser
+    }
+
+
+}

app/src/main/java/com/me/registrationtask/usecase/AuthenticationTask.kt

@@ -11,4 +11,5 @@ class AuthenticationTask(private val userRepository: IUserRepository) {
 
         return userRepository.login(username, password)
     }
+
 }

app/src/test/java/com/me/registrationtask/repository/UserRepositoryTest.kt

@@ -14,9 +14,14 @@ import org.mockito.MockitoAnnotations
 @RunWith(JUnit4::class)
 class UserRepositoryTest {
 
+//    THIS IS THE DEPENDENCY WHICH IS CONSTRUCTORS IN A CLASS
+//    THE CONSTRUCTORS IS MOST TIMES AN INTERFACE
+
     @Mock
     lateinit var userDao: UserDao
 
+//    THIS IS THE NAME OF THE CLASS, WHICH IS A TYPE OF THE CLASS
+
     lateinit var userRepository: UserRepository
 
     var fakeUser = UserEntity(