completed the notes controller and tests for the services

src/main/java/org/zaine/app/service/NotesService.java

@@ -2,7 +2,6 @@ package org.zaine.app.service;
 
 import java.util.List;
 import java.util.logging.Logger;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.zaine.app.model.Notes;
 import org.zaine.app.repositories.NotesRepository;
@@ -11,9 +10,12 @@ import org.zaine.app.repositories.NotesRepository;
 public class NotesService {
 
     private static final Logger logger = Logger.getLogger(NotesService.class.getName());
-    @Autowired
-    private NotesRepository notesRepository;
 
+    private final NotesRepository notesRepository;
+
+    public NotesService(NotesRepository notesRepository) {
+	this.notesRepository = notesRepository;
+    }
     
     public List<Notes> getAllNotes() {
 	return notesRepository.findAll();

src/test/java/org/zaine/app/service/NotesServiceTest.java

@@ -0,0 +1,65 @@
+package org.zaine.app.service;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+import java.util.Arrays;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.zaine.app.model.Notes;
+import org.zaine.app.repositories.NotesRepository;
+
+@ExtendWith(org.mockito.junit.jupiter.MockitoExtension.class)
+public class NotesServiceTest {
+
+	@InjectMocks
+	private NotesService notesService;
+
+	@Mock
+	private NotesRepository notesRepository;
+
+    
+
+    @Test
+    public void testGetAllNotesReturnsAllNotes() {
+
+	Notes note1 = new Notes();
+	note1.setContent("Note 1");
+	Notes note2 = new Notes();
+	note2.setContent("Note 2");
+	when(notesRepository.findAll()).thenReturn(Arrays.asList(note1, note2));
+        
+	List<Notes> result = notesService.getAllNotes();
+
+	assertEquals(2, result.size());
+	assertEquals("Note 1", result.get(0).getContent());
+	assertEquals("Note 2", result.get(1).getContent());
+	
+    }
+
+    @Test
+    public void testGetAllNotesReturnsEmptyListWhenNoNotes() {
+	when(notesRepository.findAll()).thenReturn(Arrays.asList());
+
+	List<Notes> result = notesService.getAllNotes();
+       
+	assertTrue(result.isEmpty());	
+
+    }
+
+    @Test
+	public void testCreateNoteSavesAndReturnsNote() {
+		Notes note = new Notes();
+		note.setContent("New Note");
+		note.setAuthorName("Author");
+
+		when(notesRepository.save(note)).thenReturn(note);
+
+		Notes result = notesService.createNote(note);
+
+		assertEquals("New Note", result.getContent());
+	}
+
+}