zanmato1984 commented on code in PR #43389:
URL: https://github.com/apache/arrow/pull/43389#discussion_r1710761731


##########
cpp/src/arrow/compute/row/row_test.cc:
##########
@@ -244,23 +228,15 @@ TEST(RowTableOffsetOverflow, 
LARGE_MEMORY_TEST(AppendFrom)) {
   RowTableImpl row_table;
   ASSERT_OK(row_table.Init(pool, table_metadata));
 
-  // Appending the seed 7 times should be fine.
-  for (int i = 0; i < num_rows - 1; ++i) {
+  // Append seed num_rows times.
+  for (int i = 0; i < num_rows; ++i) {
     ASSERT_OK(row_table.AppendSelectionFrom(row_table_seed, num_rows_seed,
                                             /*source_row_ids=*/NULLPTR));
   }
 
-  // Appending the seed the 8-th time should overflow.
-  int64_t length_per_row = table_metadata.fixed_length + length_per_binary;
-  std::stringstream expected_error_message;
-  expected_error_message
-      << "Invalid: Offset overflow detected in 
RowTableImpl::AppendSelectionFrom for row "
-      << num_rows - 1 << " of length " << length_per_row
-      << " bytes, current length in total is " << length_per_row * (num_rows - 
1)
-      << " bytes";
-  ASSERT_RAISES_WITH_MESSAGE(Invalid, expected_error_message.str(),
-                             row_table.AppendSelectionFrom(row_table_seed, 
num_rows_seed,
-                                                           
/*source_row_ids=*/NULLPTR));
+  ASSERT_GT(row_table.offsets()[num_rows - 1], 
std::numeric_limits<uint32_t>::max());
+  ASSERT_GT(row_table.offsets()[num_rows],
+            row_table.offsets()[num_rows - 1] + length_per_binary);

Review Comment:
   Now gracefully asserting equality.



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