From 7f9959fe1c04b0559c3d1e093f7790565769bf0c Mon Sep 17 00:00:00 2001
From: Nikita Titov <nekit94-08@mail.ru>
Date: Wed, 7 Jul 2021 16:29:53 +0300
Subject: [PATCH] [tests] clarify RuntimeError in distributed tests(#4452)

---
 tests/distributed/_test_distributed.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/distributed/_test_distributed.py b/tests/distributed/_test_distributed.py
index b86d73cc7ce6..9e1dd8e4f5a4 100644
--- a/tests/distributed/_test_distributed.py
+++ b/tests/distributed/_test_distributed.py
@@ -148,7 +148,7 @@ def predict(self, predict_config: Dict[str, Any] = {}) -> np.ndarray:
         cmd = [self.executable, f'config={config_path}']
         result = subprocess.run(cmd)
         if result.returncode != 0:
-            raise RuntimeError
+            raise RuntimeError('Error in prediction')
         y_pred = np.loadtxt(str(TESTS_DIR / 'predictions.txt'))
         return y_pred