diff --git a/requirements.txt b/requirements.txt
index ae5b535..6edb505 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,3 +56,5 @@ Werkzeug==1.0.1
 wrapt==1.12.1
 xlrd==1.2.0
 XlsxWriter==1.2.8
+# Development dependencies
+pytest==7.4.2
\ No newline at end of file
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..91cfa25
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,6 @@
+import os
+import sys
+import pytest
+
+# Add project root to Python path to enable module imports
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
\ No newline at end of file
diff --git a/tests/test_sanity.py b/tests/test_sanity.py
new file mode 100644
index 0000000..0329dce
--- /dev/null
+++ b/tests/test_sanity.py
@@ -0,0 +1,3 @@
+def test_pytest_works():
+    """Basic sanity test to verify pytest is configured correctly."""
+    assert True, "Pytest is not working correctly"
\ No newline at end of file