Add a test case for 0D region-backed stores (#666)

Author: magnatelee

tests/integration/test_0d_store.py

@@ -0,0 +1,38 @@
+# Copyright 2022 NVIDIA Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from itertools import product
+
+import pytest
+
+import cunumeric as num
+
+SIZE = 3
+
+
+def test_0d_region_backed_stores():
+    arr = num.arange(9).reshape(3, 3)
+
+    for i, j in product(range(SIZE), range(SIZE)):
+        i_ind = num.array(i)
+        j_ind = num.array(j)
+        v = arr[i_ind, j_ind]
+        assert int(v) == i * SIZE + j
+
+
+if __name__ == "__main__":
+    import sys
+
+    sys.exit(pytest.main(sys.argv))