Add test

Author: maxrjones

tests/test_common.py

@@ -1,23 +1,36 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from collections.abc import Iterable
-    from typing import Any, Literal
+from typing import TYPE_CHECKING, get_args
 
 import numpy as np
 import pytest
 
-from zarr.core.common import parse_name, parse_shapelike, product
+from zarr.core.common import (
+    ANY_ACCESS_MODE,
+    AccessModeLiteral,
+    parse_name,
+    parse_shapelike,
+    product,
+)
 from zarr.core.config import parse_indexing_order
 
+if TYPE_CHECKING:
+    from collections.abc import Iterable
+    from typing import Any, Literal
+
 
 @pytest.mark.parametrize("data", [(0, 0, 0, 0), (1, 3, 4, 5, 6), (2, 4)])
 def test_product(data: tuple[int, ...]) -> None:
     assert product(data) == np.prod(data)
 
 
+def test_access_modes() -> None:
+    """
+    Test that the access modes type and variable for run-time checking are equivalent.
+    """
+    assert set(ANY_ACCESS_MODE) == set(get_args(AccessModeLiteral))
+
+
 # todo: test
 def test_concurrent_map() -> None: ...