Function CheckPrimitive

cpp/src/arrow/integration/json_integration_test.cc:776–793

template <typename T, typename ValueType>
void CheckPrimitive(const std::shared_ptr<DataType>& type,
                    const std::vector<bool>& is_valid,
                    const std::vector<ValueType>& values) {
  MemoryPool* pool = default_memory_pool();
  typename TypeTraits<T>::BuilderType builder(pool);

  for (size_t i = 0; i < values.size(); ++i) {
    if (is_valid[i]) {
      ASSERT_OK(builder.Append(values[i]));
    } else {
      ASSERT_OK(builder.AppendNull());
    }
  }

  std::shared_ptr<Array> array;
  ASSERT_OK(builder.Finish(&array));
  TestArrayRoundTrip(*array);
}

TEST(TestJsonSchemaWriter, FlatTypes) {
  std::vector<std::shared_ptr<Field>> fields = {