finalized getUser and added tests

Author: parmism

src/main/java/UserDatabase.java

@@ -25,7 +25,6 @@ public boolean UserExists(String username, String email) {
         }
         return user != null;
     }
-//    TODO: create userExists that takes 1 parameter: username.
 
     // Creates a new user with a username and password, and an email address
     // The order is username, password, email address, verification status, status
@@ -49,23 +48,15 @@ public void createUser(String username, String password, String email, String ty
     @Override
 //  To be edited to get user from the array format rather than the serialized format.
     public User getUser(String username) {
-        User user = null;
-        try(FileInputStream fileIn = new FileInputStream(accounts);
-            ObjectInputStream in = new ObjectInputStream(fileIn)){
-            do{
-                try{
-                    user = (User)in.readObject();
-                }catch(NullPointerException e){
-                    break;
-                }
-            }while(!user.getUsername().equals(username));
-        }catch(IOException e){
-            e.printStackTrace();
-        } catch (ClassNotFoundException e) {
-            throw new RuntimeException(e);
+        User ans = null;
+        for (int i = 0; i < (this.getList().size()); i++) {
+            if (this.getList().get(i).getUsername().equals(username)) {
+                ans = this.getList().get(i);
+            }
         }
-        return user;
+        return ans;
     }
+
     //Returns an ArrayList with the users that is extracted from the file, so that other objects can use this list.
     @Override
     public List<User> getList() {

src/test/java/UserDatabaseTest.java

@@ -2,6 +2,8 @@
 import org.junit.jupiter.api.Test;
 
 import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
 
 public class UserDatabaseTest {
     @Test
@@ -30,4 +32,24 @@ public void rightUserWrongEmail(){
         UserDatabase accountDatabase = new UserDatabase(accounts);
         Assertions.assertTrue(accountDatabase.UserExists("MeenakshiGopakumar", "ma"));
     }
+    @Test
+    public void listedUsers(){
+        File accounts = new File("TestUserDatabase2.csv");
+        UserDatabase accountDatabase = new UserDatabase(accounts);
+        accountDatabase.createUser("MeenakshiGopakumar", "123", "[email protected]", "Basic");
+        List<User> lst = accountDatabase.getList();
+        String email = lst.get(0).getEmail();
+        Assertions.assertTrue(email.equals("[email protected]"));
+    }
+
+    @Test
+    public void userGot() {
+        File accounts = new File("TestUserDatabase2.csv");
+        UserDatabase accountDatabase = new UserDatabase(accounts);
+        accountDatabase.createUser("MeenakshiGopakumar", "123", "[email protected]", "Basic");
+        User user = accountDatabase.getUser("MeenakshiGopakumar");
+        String email = user.getEmail();
+        Assertions.assertTrue(email.equals("[email protected]"));
+    }
+
     }