Begin testing

tests/test_main.py

@@ -0,0 +1,12 @@
+from beflask import app
+
+
+def test_config():
+    assert not app.create_app()[1].testing
+    assert app.create_app("testing")[1].testing
+
+
+def test_index(client):
+    response = client.get("/")
+    # check image is in the response
+    assert b"img/robert-lukeman-_RBcxo9AU-U-unsplash.jpg" in response.data