| 971 | """Simulate sparse arrays via fake .nnz and .shape attributes.""" |
| 972 | |
| 973 | class FakeSparse: |
| 974 | def __init__(self, nnz, shape): |
| 975 | self.nnz = nnz |
| 976 | self.shape = shape |
| 977 | |
| 978 | assert is_empty(FakeSparse(0, (10, 10))) is True # nnz == 0 → True |
| 979 | assert is_empty(FakeSparse(5, (10, 10))) is False # nnz != 0 → False |
no outgoing calls