diff --git a/tests/cov.py b/tests/cov.py
new file mode 100644
index 0000000..b0d5701
--- /dev/null
+++ b/tests/cov.py
@@ -0,0 +1,7 @@
+import pytest
+
+pytest.main([
+    "-x",
+    "pytest --cov-report html  --cov-report term-missing --cov=ulist",
+    "tests/"]
+)