Closes #23 Add mocking support

Author: EliuX

README.md

@@ -63,7 +63,7 @@ We are using Pytest](https://docs.pytest.org/en/latest/index.html) for tests. Th
 
 To run the tests just execute:
 
-```
+```bash
 python3 -m pytest -v
 ```
 

requirements/dev.txt

@@ -5,7 +5,10 @@
 # For development
 
 # Tests
-pytest==4.1.1
+pytest==5.2.0
+
+# Mocking
+pytest-mock==2.0.0
 
 # Coverage
 coverage==4.5.1

tests/conftest.py

@@ -1,15 +1,18 @@
-
 import pytest
+from flask import Flask
+from flask.testing import FlaskClient
 
 from time_tracker_api import create_app
 
+
 @pytest.fixture(scope='session')
-def app():
+def app() -> Flask:
     """An instance of the app for tests"""
     return create_app()
 
+
 @pytest.fixture
-def client(app):
+def client(app: Flask) -> FlaskClient:
     """A test client for the app."""
     with app.test_client() as c:
-        return c
+        return c

tests/time_entries/time_enties_namespace_test.py

@@ -1,10 +1,17 @@
 from flask import json
+from flask.testing import FlaskClient
+from pytest_mock import MockFixture
 
-def test_list_should_return_empty_array(client):
+
+def test_list_should_return_empty_array(mocker: MockFixture, client: FlaskClient):
+    from time_tracker_api.time_entries.time_entries_namespace import model
     """Should return an empty array"""
+    model_mock = mocker.patch.object(model, 'find_all', return_value=[])
+
     response = client.get("/time-entries", follow_redirects=True)
 
     assert 200 == response.status_code
 
     json_data = json.loads(response.data)
     assert [] == json_data
+    model_mock.assert_called_once()

time_tracker_api/__init__.py

@@ -1,8 +1,9 @@
 import os
+
 from flask import Flask
 
 
-def create_app(config_path='time_tracker_api.config.WhateverDevelopConfig',
+def create_app(config_path='time_tracker_api.config.DefaultConfig',
                config_data=None):
     flask_app = Flask(__name__)
 
@@ -12,7 +13,7 @@ def create_app(config_path='time_tracker_api.config.WhateverDevelopConfig',
     return flask_app
 
 
-def init_app_config(app, config_path, config_data=None):
+def init_app_config(app: Flask, config_path: str, config_data: dict = None):
     if config_path:
         app.config.from_object(config_path)
     else:

time_tracker_api/config.py

@@ -7,3 +7,6 @@ class WhateverDevelopConfig(Config):
     FLASK_DEBUG = True
     FLASK_ENV = "develop"
     DATABASE = "whatever"
+
+
+DefaultConfig = WhateverDevelopConfig

time_tracker_api/database.py

@@ -25,4 +25,4 @@ def create(model_name: str):
 
 def use_whatever():
     from time_tracker_api import whatever_repository
-    return whatever_repository
+    return whatever_repository