add test for indexing with zarr array

Author: TomNicholas

tests/test_indexing.py

@@ -2041,6 +2041,22 @@ async def test_async_oindex(self, store, indexer, expected):
         result = await async_zarr.oindex.getitem(indexer)
         assert_array_equal(result, expected)
 
+    @pytest.mark.asyncio
+    async def test_async_oindex_with_zarr_array(self, store):
+        z1 = zarr.create_array(store=store, shape=(2, 2), chunks=(1, 1), zarr_format=3, dtype="i8")
+        z1[...] = np.array([[1, 2], [3, 4]])
+        async_zarr = z1._async_array
+
+        # create boolean zarr array to index with
+        z2 = zarr.create_array(
+            store=store, name="z2", shape=(2,), chunks=(1,), zarr_format=3, dtype="?"
+        )
+        z2[...] = np.array([True, False])
+
+        result = await async_zarr.oindex.getitem(z2)
+        expected = np.array([[1, 2]])
+        assert_array_equal(result, expected)
+
     @pytest.mark.parametrize(
         ("indexer", "expected"),
         [