diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..ade14cd
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,8 @@
+import sys
+from pathlib import Path
+
+# Ensure the package source is importable when running tests without installation
+ROOT = Path(__file__).resolve().parents[1]
+SRC_PATH = ROOT / "src"
+if SRC_PATH.is_dir() and str(SRC_PATH) not in sys.path:
+    sys.path.insert(0, str(SRC_PATH))