Last line

Author: Martin Durant

zarr/tests/test_storage.py

@@ -937,13 +937,14 @@ def test_s3_complex(self):
         a[:4] = expected[:4]
 
         a = g.create_dataset("data_f", shape=(8, ), chunks=(1,),
-                             dtype=[('foo', 'S3'), ('bar', 'i4')])
-        a['foo'] = b"aaa"
+                             dtype=[('foo', 'S3'), ('bar', 'i4')],
+                             fill_value=(b"b", 1))
+        a[:4] = (b"aaa", 2)
         g = zarr.open_group("s3://test/out.zarr", mode='r',
                             storage_options=self.s3so)
 
         assert (g.data[:] == expected).all()
-        assert g.data_f['foo'].tolist() == [b"aaa"] * 8
+        assert g.data_f['foo'].tolist() == [b"aaa"] * 4 + [b"b"] * 4
 
 
 @pytest.fixture()