fix webhook code we hope

test_square_webhook.py

@@ -0,0 +1,48 @@
+"""
+Simple test script to verify Square webhook signature verification works correctly.
+
+This uses the same test data from Square's documentation to ensure our implementation
+matches their expected behavior.
+"""
+
+import sys
+
+sys.path.insert(0, "src")
+
+from square.utilities.webhooks_helper import is_valid_webhook_event_signature
+
+# Test data from Square's documentation
+TEST_BODY = '{"hello":"world"}'
+TEST_SIGNATURE = "2kRE5qRU2tR+tBGlDwMEw2avJ7QM4ikPYD/PJ3bd9Og="
+TEST_SIGNATURE_KEY = "asdf1234"
+TEST_NOTIFICATION_URL = "https://example.com/webhook"
+
+
+def test_signature_validation():
+    """Test that signature validation works with Square SDK"""
+
+    print("Testing Square webhook signature validation...")
+    print(f"Body: {TEST_BODY}")
+    print(f"Signature: {TEST_SIGNATURE}")
+    print(f"Key: {TEST_SIGNATURE_KEY}")
+    print(f"URL: {TEST_NOTIFICATION_URL}")
+    print()
+
+    # This should return True with Square's test data
+    is_valid = is_valid_webhook_event_signature(
+        TEST_BODY, TEST_SIGNATURE, TEST_SIGNATURE_KEY, TEST_NOTIFICATION_URL
+    )
+
+    if is_valid:
+        print("✅ SUCCESS: Signature validation passed!")
+        print("The webhook implementation is using Square SDK correctly.")
+        return True
+    else:
+        print("❌ FAILURE: Signature validation failed!")
+        print("Something is wrong with the signature verification.")
+        return False
+
+
+if __name__ == "__main__":
+    success = test_signature_validation()
+    sys.exit(0 if success else 1)