Function testConstantNull

bolt/expression/tests/ConstantFlatVectorReaderTest.cpp:146–158

template <typename T>
void testConstantNull(const T& reader, const VectorPtr& vector) {
  ASSERT_TRUE(reader.mayHaveNulls());
  ASSERT_TRUE(reader.mayHaveNullsRecursive());

  for (vector_size_t i = 0; i < vector->size(); i++) {
    ASSERT_FALSE(reader.isSet(i));
    ASSERT_TRUE(reader.containsNull(i));
    if (i > 0) {
      ASSERT_TRUE(reader.containsNull(0, i));
    }
    ASSERT_TRUE(reader.containsNull(i, vector->size()));
  }
}

TEST_F(ConstantFlatVectorReaderTest, constantNull) {
  auto vector = makeConstant<int32_t>(std::nullopt, 10);