✅ Skip GPU test if GPU is not available (e.g in github env)

Author: valentingol

tests/test_gpu.py

@@ -1,6 +1,7 @@
 """Test PCA with GPU and different dtypes."""
 
-# Copyright (c) 2024 Valentin Goldité. All Rights Reserved.
+# Copyright (c) 2024 Valentin Goldité. All Rights Reserved
+import pytest
 import pytest_check as check
 import torch
 
@@ -9,6 +10,8 @@
 
 def test_gpu() -> None:
     """Test with GPU and different dtypes."""
+    if not torch.cuda.is_available():
+        pytest.skip("No GPU found.")
     inputs = torch.load("tests/input_data.pt").to("cuda:0")
     for dtype in [torch.float32, torch.float16, torch.float64]:
         inputs = inputs.to(dtype)