[GitHub] [arrow] emkornfield commented on a change in pull request #7389: ARROW-9075: [C++][CI] Fix Windows build

[GitBox <gi...@apache.org>]

emkornfield commented on a change in pull request #7389:
URL: https://github.com/apache/arrow/pull/7389#discussion_r437792823



##########
File path: cpp/src/arrow/util/bit_block_counter_test.cc
##########
@@ -246,5 +246,28 @@ TEST(TestBinaryBitBlockCounter, NextAndWord) {
   }
 }
 
+TEST(TestOptionalBitBlockCounter, Basics) {
+  const int64_t nbytes = 1024;
+  auto bitmap = *AllocateBitmap(nbytes * 8);
+  random_bytes(nbytes, 0, bitmap->mutable_data());
+
+  OptionalBitBlockCounter optional_counter(bitmap, 0, nbytes * 8);
+  BitBlockCounter bit_counter(bitmap->data(), 0, nbytes * 8);
+
+  while (true) {

Review comment:
       I think do/while here might be more natural?




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