diff --git a/back/tests/__init__.py b/back/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/back/tests/test_batimap.py b/back/tests/test_batimap.py
new file mode 100755
index 0000000000000000000000000000000000000000..b311e3cb8ca80d50e80943492d021417ee2784cd
--- /dev/null
+++ b/back/tests/test_batimap.py
@@ -0,0 +1,13 @@
+from flask import Flask
+from flask_testing import TestCase
+
+
+class APITest(TestCase):
+    def create_app(self):
+        app = Flask("batimap")
+        app.config["TESTING"] = True
+        return app
+
+    def test_some_json(self):
+        response = self.client.get("/cities/26120/update")
+        self.assertEquals(response.json, dict(success=True))