added tests

backend/pytest.ini

@@ -0,0 +1,12 @@
+[tool:pytest]
+testpaths = .
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+addopts = 
+    -v
+    --tb=short
+    --strict-markers
+    --disable-warnings
+markers =
+    asyncio: marks tests as async (deselect with '-m "not asyncio"')