diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e3fbdfdbd7115d6d1b753e7f340380f48571db9e
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1,6 @@
+import pathlib
+
+TEST_DIR = pathlib.Path(__file__).parent
+
+def relpath(path):
+    return TEST_DIR / pathlib.Path(path)