introduce blueprints and unit tests

tests/test_basic.py

@@ -0,0 +1,20 @@
+import unittest
+from flask import current_app
+from app import create_app
+
+
+class BasicsTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.app = create_app('testing')
+        self.app_context = self.app.app_context()
+        self.app_context.push()
+
+    def tearDown(self):
+        self.app_context.pop()
+
+    def test_app_exists(self):
+        self.assertFalse(current_app is None)
+
+    def test_app_is_testing(self):
+        self.assertTrue(current_app.config['TESTING'])

tests/test_index.py

@@ -0,0 +1,19 @@
+import unittest
+from app import create_app
+
+
+class BasicsTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.app = create_app('testing')
+        self.app_context = self.app.app_context()
+        self.app_context.push()
+
+    def tearDown(self):
+        self.app_context.pop()
+
+    def test_index(self):
+        with self.app.test_client() as test_client:
+            response = test_client.get('/')
+            self.assertEqual(response.status_code, 200)
+            self.assertIn(b'<h1>RGB controller</h1>', response.data)