fix(test): the high-b array had too large scale, reducing to preempt false positives

Author: oesteban

dmriprep/utils/tests/test_vectors.py

@@ -106,7 +106,7 @@ def mock_func(*args, **kwargs):
 def test_b0mask_from_data(tmp_path):
     """Check the estimation of bzeros using the dwi data."""
 
-    highb = np.random.normal(100, 50, size=(40, 40, 40, 99))
+    highb = np.random.normal(100, 5, size=(40, 40, 40, 99))
     mask_file = tmp_path / 'mask.nii.gz'
 
     # Test 1: no lowb