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Add test for other modes #2690

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Add test for other modes #2690

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10 changes: 7 additions & 3 deletions tests/test_api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1086,10 +1086,14 @@ async def test_open_falls_back_to_open_group_async() -> None:
assert group.attrs == {"key": "value"}


def test_open_mode_write_creates_group(tmp_path: pathlib.Path) -> None:
@pytest.mark.parametrize("mode", ["w", "a"])
def test_open_write_modes_creates_group(tmp_path: pathlib.Path, mode: str) -> None:
# https://github.com/zarr-developers/zarr-python/issues/2490
zarr_dir = tmp_path / "test.zarr"
group = zarr.open(zarr_dir, mode="w")
zarr_dir = tmp_path / f"{mode}-test.zarr"
if mode in ["r", "r+"]:
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This block won't every be executed, because the mode is only 'w' or 'a' in this test. Do you think we should get rid of the if block, or extend the parameterisation to include 'r' and 'r+'?

# If read modes, create a zarr store first.
zarr.open(zarr_dir, mode="w")
group = zarr.open(zarr_dir, mode=mode)
assert isinstance(group, Group)


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