time service with tests

Author: Matthew Shirtliffe

time_service/app.py

@@ -0,0 +1,15 @@
+from datetime import datetime
+
+# export FLASK_APP=app.py
+# flask run
+    
+from flask import Flask
+app = Flask(__name__)
+
+
+def get_now():
+    return datetime.utcnow()
+
+@app.route('/')
+def get_time():
+    return {'current_time':get_now()}

time_service/client.py

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+import requests
+
+
+def get_data():
+    url = 'http://localhost:5000/'
+    response = requests.get(url)
+    response.raise_for_status
+    if response.ok:
+        return response
+
+
+def print_current_time(time):
+    print(f'The current time is {time}')
+
+
+if __name__ == "__main__":
+    data = get_data()
+    data = data.json()
+    print_current_time(data['current_time'])

time_service/tests/__init__.py

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+import os
+from unittest import TestCase
+from unittest.mock import patch, call
+from app import app
+import client
+
+import json
+from datetime import datetime
+
+
+class AppTest(TestCase):
+
+
+    def setUp(self):
+        app.testing = True
+        self.app = app.test_client()
+
+    def test_home(self):
+        with self.app as client, patch('app.get_now', return_value=datetime(2015, 8, 4, 12, 22, 44, 123456)) as mocked_datetime:
+            response = client.get('/')
+            self.assertEqual(response.status_code, 200)
+            self.assertEqual(json.loads(response.get_data()),  {'current_time': 'Tue, 04 Aug 2015 12:22:44 GMT'})
+
+    def test_get_data(self):
+        with patch('requests.get') as mocked_request_get:
+            mocked_request_get.return_value.status_code = 200
+            response = client.get_data()
+            self.assertEqual(response.status_code, 200)
+            mocked_request_get.assert_called_with(f'http://localhost:5000/')
+
+    
+    def test_print_current_time(self):
+        with patch('builtins.print') as mocked_print:
+            client.print_current_time('Tue, 06 Aug 2019 12:03:47 GMT')
+            mocked_print.assert_called_with('The current time is Tue, 06 Aug 2019 12:03:47 GMT')

time_service/tests/system/__init__.py

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+from unittest import TestCase
+import app
+
+class FilteringRecordsTest(TestCase):
+    pass