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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/08/13 13:25:46 UTC

[GitHub] [arrow] pitrou commented on a change in pull request #7952: ARROW-9556: [Python][C++] Segfaults in UnionArray with null values

pitrou commented on a change in pull request #7952:
URL: https://github.com/apache/arrow/pull/7952#discussion_r469948366



##########
File path: python/pyarrow/tests/test_array.py
##########
@@ -975,6 +975,47 @@ def check_result(result, expected_field_names, expected_type_codes,
         arr = pa.UnionArray.from_sparse(logical_types, [binary, int64[1:]])
 
 
+def test_union_array_to_pylist_with_nulls():
+    # ARROW-9556
+    arr = pa.UnionArray.from_sparse(
+        pa.array([0, 1, 0, 0, 1], type=pa.int8()),
+        [
+            pa.array([0.0, 1.1, None, 3.3, 4.4]),
+            pa.array([True, True, False, True, False]),
+        ]
+    )
+    assert arr.to_pylist() == [0.0, True, None, 3.3, False]
+
+    arr = pa.UnionArray.from_sparse(
+        pa.array([0, 1, 0, 0, 1], type=pa.int8()),
+        [
+            pa.array([0.0, 1.1, None, 3.3, 4.4]),
+            pa.array([True, None, False, True, False]),
+        ]
+    )
+    assert arr.to_pylist() == [0.0, None, None, 3.3, False]

Review comment:
       Is this test repeated from above or am I missing something?

##########
File path: python/pyarrow/tests/test_array.py
##########
@@ -975,6 +975,47 @@ def check_result(result, expected_field_names, expected_type_codes,
         arr = pa.UnionArray.from_sparse(logical_types, [binary, int64[1:]])
 
 
+def test_union_array_to_pylist_with_nulls():
+    # ARROW-9556
+    arr = pa.UnionArray.from_sparse(
+        pa.array([0, 1, 0, 0, 1], type=pa.int8()),
+        [
+            pa.array([0.0, 1.1, None, 3.3, 4.4]),
+            pa.array([True, True, False, True, False]),
+        ]
+    )
+    assert arr.to_pylist() == [0.0, True, None, 3.3, False]
+
+    arr = pa.UnionArray.from_sparse(
+        pa.array([0, 1, 0, 0, 1], type=pa.int8()),
+        [
+            pa.array([0.0, 1.1, None, 3.3, 4.4]),
+            pa.array([True, None, False, True, False]),
+        ]
+    )
+    assert arr.to_pylist() == [0.0, None, None, 3.3, False]
+
+    arr = pa.UnionArray.from_dense(
+        pa.array([0, 1, 0, 0, 0, 1, 1], type=pa.int8()),
+        pa.array([0, 0, 1, 2, 3, 1, 2], type=pa.int32()),
+        [
+            pa.array([0.0, 1.1, None, 3.3]),
+            pa.array([True, True, False])
+        ]
+    )
+    assert arr.to_pylist() == [0.0, True, 1.1, None, 3.3, True, False]
+
+    arr = pa.UnionArray.from_dense(
+        pa.array([0, 1, 0, 0, 0, 1, 1], type=pa.int8()),
+        pa.array([0, 0, 1, 2, 3, 1, 2], type=pa.int32()),
+        [
+            pa.array([0.0, 1.1, None, 3.3]),
+            pa.array([True, None, False])
+        ]
+    )
+    assert arr.to_pylist() == [0.0, True, 1.1, None, 3.3, None, False]

Review comment:
       Same question here.




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