test z[selection] for orthogonal selection

Author: brokkoli71

tests/v3/test_indexing.py

@@ -15,6 +15,7 @@
 from zarr.buffer import BufferPrototype, NDBuffer
 from zarr.common import ChunkCoords
 from zarr.indexing import (
+    is_pure_fancy_indexing,
     make_slice_selection,
     normalize_integer_selection,
     oindex,
@@ -520,6 +521,12 @@ def _test_get_orthogonal_selection(a, z, selection):
     actual = z.oindex[selection]
     assert_array_equal(expect, actual)
 
+    # if is not fancy indexing, z[selection] should be orthogonal selection
+    selection_ndim = len(selection) if isinstance(selection, tuple) else 1
+    if not is_pure_fancy_indexing(selection, selection_ndim):
+        actual = z[selection]
+        assert_array_equal(expect, actual)
+
 
 # noinspection PyStatementEffect
 def test_get_orthogonal_selection_1d_bool(store: StorePath):
@@ -1718,3 +1725,6 @@ def test_accessed_chunks(shape, chunks, ops):
                 ) == 1
         # Check that no other chunks were accessed
         assert len(delta_counts) == 0
+
+def test_is_pure_orthogonal_indexing():
+    pass