diff --git a/tests/conftest.py b/tests/conftest.py
index 91dff2a..b89d02d 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,3 +1,6 @@
+from pathlib import Path
+from unittest.mock import patch
+
 import pytest
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
@@ -8,6 +11,8 @@ from pilgrim.database import Base
 from pilgrim.models.travel_diary import TravelDiary
 from pilgrim.models.entry import Entry
 from pilgrim.models.photo import Photo
+from pilgrim.utils import DirectoryManager
+
 
 # Todos os imports necessários para as fixtures devem estar aqui
 # ...
@@ -66,6 +71,39 @@ def session_with_photos(session_with_one_diary):
 
     return session, [photo1, photo2]
 
+@pytest.fixture
+def backup_test_env_files_only(tmp_path):
+    fake_config_dir = tmp_path / "config"
+    fake_diaries_root = tmp_path / "diaries"
+    fake_db_path = fake_config_dir / "database.db"
+    fake_config_dir.mkdir()
+    fake_diaries_root.mkdir()
+    with patch.object(DirectoryManager, 'get_database_path', return_value=fake_db_path), \
+            patch.object(DirectoryManager, 'get_config_directory', return_value=fake_config_dir), \
+            patch.object(DirectoryManager, 'get_diaries_root', return_value=fake_diaries_root):
+        engine = create_engine(f"sqlite:///{fake_db_path}")
+        Base.metadata.create_all(engine)
+        Session = sessionmaker(bind=engine)
+        session = Session()
+
+        diary = TravelDiary(name="Viagem de Teste", directory_name="viagem_de_teste")
+        session.add(diary)
+        session.commit()
+        photo_file_path_str = str(fake_diaries_root / "viagem_de_teste" / "images" / "foto1.jpg")
+        photo = Photo(filepath=photo_file_path_str, name="Foto 1", photo_hash="hash123", fk_travel_diary_id=diary.id)
+        session.add(photo)
+        session.commit()
+        photo_file_path = Path(photo_file_path_str)
+        photo_file_path.parent.mkdir(parents=True)
+        photo_file_path.touch()
+        yield {
+            "session": session,
+            "db_path": fake_db_path,
+            "config_dir": fake_config_dir,
+            "diaries_root": fake_diaries_root,
+        }
+        session.close()
+
 @pytest.fixture
 def entry_with_photo_references(session_with_one_diary):
     session, diary = session_with_one_diary
@@ -97,4 +135,5 @@ def session_with_multiple_entries(session_with_one_diary):
     session.add_all([entry1, entry2])
     session.commit()
 
-    return session, diary
\ No newline at end of file
+    return session, diary
+
diff --git a/tests/service/test_backup_service.py b/tests/service/test_backup_service.py
new file mode 100644
index 0000000..3038194
--- /dev/null
+++ b/tests/service/test_backup_service.py
@@ -0,0 +1,39 @@
+import zipfile
+from pathlib import Path
+from unittest.mock import patch, MagicMock
+from pilgrim.service.backup_service import BackupService
+from pilgrim.utils.directory_manager import DirectoryManager
+import pytest
+
+@patch.object(DirectoryManager, 'get_diaries_root')
+@patch.object(DirectoryManager, 'get_config_directory')
+@patch.object(DirectoryManager, 'get_database_path')
+def test_create_backup_success(mock_get_db_path, mock_get_config_dir, mock_get_diaries_root, backup_test_env_files_only):
+    env = backup_test_env_files_only
+    session = env["session"]
+    mock_get_db_path.return_value = env["db_path"]
+    mock_get_config_dir.return_value = env["config_dir"]
+    mock_get_diaries_root.return_value = env["diaries_root"]
+
+    service = BackupService(session)
+    backup_zip_path = env["config_dir"] / "backup.zip"
+    success, returned_path = service.create_backup()
+    assert success is True
+    assert returned_path == backup_zip_path
+    assert backup_zip_path.exists()
+
+    with zipfile.ZipFile(backup_zip_path, 'r') as zf:
+        file_list = zf.namelist()
+        assert "database.sql" in file_list
+        assert "diaries/viagem_de_teste/images/foto1.jpg" in file_list
+        sql_dump = zf.read("database.sql").decode('utf-8')
+        assert "Viagem de Teste" in sql_dump
+
+@patch.object(DirectoryManager, 'get_database_path')
+def test_create_backup_fails_if_db_not_found(mock_get_db_path, tmp_path: Path):
+    non_existent_db_path = tmp_path / "non_existent.db"
+    mock_get_db_path.return_value = non_existent_db_path
+    mock_session = MagicMock()
+    service = BackupService(mock_session)
+    with pytest.raises(FileNotFoundError, match="No Database Found"):
+        service.create_backup()
\ No newline at end of file