Implemented tests, fixed a bug in DBGateway, changes made to term and definition input

Author: Junyu11111

src/main/java/create_flashcard_use_case/fcCScreens/FcCScreen.java

@@ -61,7 +61,8 @@ public FcCScreen(FcCController controller, JFrame fcCMain){
     public void actionPerformed(ActionEvent e) {
         try{
             //Success view.
-            FcCResponseModel responseModel = controller.create(term_text.getText(), definition_text.getText());
+            FcCResponseModel responseModel = controller.create(term_text.getText().replace("\n", ""),
+                    definition_text.getText().replace("\n", ""));
             int action = JOptionPane.showConfirmDialog(this,
                     "Card created:\n"+responseModel.getTerm()+ "\n" + responseModel.getDefinition()
                             +"\ncreate another card?");

src/main/java/data_access/DBGateway.java

@@ -87,7 +87,7 @@ public void deleteFlashcardSet(String ownerUsername, int flashcardSetID) {
 
     public int saveFlashcard(FlashcardDsRequestModel flashcard) {
         int id = this.flashcardGateway.saveFlashcard(flashcard);
-        this.flashcardSetGateway.saveFlashcardID(flashcard.getBelongsToId(), flashcard.getFlashcardId());
+        this.flashcardSetGateway.saveFlashcardID(flashcard.getBelongsToId(), id);
         return id;
     }
 

src/test/java/create_flashcard_use_case/FcCInteractorTest.java

@@ -7,7 +7,6 @@
 import create_flashcard_use_case.fcCScreens.*;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
-
 import java.util.ArrayList;
 import java.util.List;
 

src/test/java/delete_flashcard_use_case/FcRInteractorTest.java

@@ -10,7 +10,6 @@
 import delete_flashcard_use_case.FcRScreens.FcRResponsePresenter;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
-
 import java.time.LocalDateTime;
 import java.util.ArrayList;