Add a better test for xarray dimension renaming

This commit adds a better test for renaming the dimensions of an
xarray.DataArray, naming the dimensions meaningless strings like
"Monday".

Author: elevans

tests/test_image_conversion.py

@@ -560,6 +560,13 @@ def test_index_image_converts_to_imglib_roi(ij):
         ("t", "z", "y", "x", "c"),
         (5, 4, 6, 12, 3),
     ),
+    (
+        get_xarr,
+        "python",
+        ["foo", "bar", "a", "z", "monday"],
+        ("foo", "bar", "a", "z", "monday"),
+        (5, 4, 6, 12, 3),
+    ),
 ]