Added Mocks to help aid the process of creation of the textual TUI

src/pilgrim/service/mocks/travel_diary_service_mock.py

@@ -0,0 +1,33 @@
+from pilgrim.service.travel_diary_service import TravelDiaryService
+from pilgrim.models.travel_diary import TravelDiary
+
+
+class TravelDiaryServiceMock(TravelDiaryService):
+    def __init__(self):
+        super().__init__(None)
+        self.mock_data = {
+            1:TravelDiary(id=1,name="Montreal")
+        }
+        self._next_id = 2
+
+    def create(self, name: str):
+        new_travel_diary = TravelDiary(id=self._next_id,name=name)
+        self.mock_data[self._next_id] = new_travel_diary
+        self._next_id += 1
+        return new_travel_diary
+
+    def read_by_id(self, travel_id: int):
+        return self.mock_data[travel_id]
+
+    def read_all(self):
+        return list(self.mock_data.values())
+
+    def update(self, travel_diary_id: int, travel_diary_dst: TravelDiary):
+        item_to_update = self.mock_data.get(travel_diary_id)
+        if item_to_update:
+            item_to_update.name = travel_diary_dst.name if travel_diary_dst.name is not None else item_to_update.name
+            return item_to_update
+        return None
+
+    def delete(self, travel_diary_id: int):
+        return self.mock_data.pop(travel_diary_id, None)