From a1c41e69031feff3a086e961997594ad55608f6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Irene=20L=C3=B3pez?= <irene.lopezs@protonmail.com>
Date: Mon, 20 Nov 2023 10:37:01 +0000
Subject: [PATCH] feat: raise error in `from_parquet` when df is empty

---
 src/otg/dataset/dataset.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/otg/dataset/dataset.py b/src/otg/dataset/dataset.py
index 574d7f66e..0fd1e6655 100644
--- a/src/otg/dataset/dataset.py
+++ b/src/otg/dataset/dataset.py
@@ -84,9 +84,14 @@ def from_parquet(
 
         Returns:
             Self: Dataset with the parquet file contents
+
+        Raises:
+            ValueError: Parquet file is empty
         """
         schema = cls.get_schema()
         df = session.read_parquet(path=path, schema=schema, **kwargs)
+        if df.isEmpty():
+            raise ValueError(f"Parquet file is empty: {path}")
         return cls(_df=df, _schema=schema)
 
     def validate_schema(self: Dataset) -> None: