Function MakeBatchArrays

cpp/src/arrow/integration/json_integration_test.cc:938–960

Data generation for test case below

// Data generation for test case below
void MakeBatchArrays(const std::shared_ptr<Schema>& schema, const int num_rows,
                     std::vector<std::shared_ptr<Array>>* arrays) {
  const float null_prob = 0.25f;
  random::RandomArrayGenerator rand(0x564a3bf0);

  *arrays = {rand.Boolean(num_rows, 0.75, null_prob),
             rand.Int8(num_rows, 0, 100, null_prob),
             rand.Int32(num_rows, -1000, 1000, null_prob),
             rand.UInt64(num_rows, 0, 1UL << 16, null_prob)};

  static const int kBufferSize = 10;
  static uint8_t buffer[kBufferSize];
  static uint32_t seed = 0;
  StringBuilder string_builder;
  for (int i = 0; i < num_rows; ++i) {
    random_ascii(kBufferSize, seed++, buffer);
    ASSERT_OK(string_builder.Append(buffer, kBufferSize));
  }
  std::shared_ptr<Array> v3;
  ASSERT_OK(string_builder.Finish(&v3));

  arrays->emplace_back(v3);
}

TEST(TestJsonFileReadWrite, BasicRoundTrip) {
  auto v1_type = boolean();