fixed test_group_count()

tests/test_utilities.py

@@ -178,16 +178,16 @@ def test_bt11_elevation_correction(height: np.ndarray, ref_correction: np.ndarra
     assert np.allclose(correction, ref_correction)
 
 
-def test_group_count(ref_bits: dict) -> None:
+def test_group_count(ref_bits: dict, ref_group_count: np.ndarray) -> None:
     """Test group count."""
     assert np.allclose(utils.group_count(ref_bits), ref_group_count)
 
 
-def test_restoral_flag(bits: np.ndarray) -> None:
+def test_restoral_flag() -> None:
     """Test computation of restoral flags."""
     pass
 
 
-def test_combine_indices(index1: tuple, index2: tuple, shape: tuple) -> None:
+def test_combine_indices() -> None:
     """Test combine indices."""
     pass