Add sample test file for CI validation

test_sample.py

@@ -0,0 +1,29 @@
+#\!/usr/bin/env python3
+"""Simple test file for CI pipeline validation."""
+
+import sys
+
+def test_python_version():
+    """Test that Python version is 3.x"""
+    assert sys.version_info.major == 3
+    print(f"Python version check passed: {sys.version}")
+
+def test_basic_math():
+    """Test basic arithmetic"""
+    assert 2 + 2 == 4
+    print("Basic math test passed")
+
+def test_string_operations():
+    """Test string operations"""
+    s = "Hello CI"
+    assert "CI" in s
+    assert len(s) == 8
+    print("String test passed")
+
+if __name__ == "__main__":
+    test_python_version()
+    test_basic_math()
+    test_string_operations()
+    print("
+=== All tests passed\! ===")
+