Method SetUp

cpp/src/parquet/chunker_internal_test.cc:1020–1051

  std::shared_ptr<Table> part1_, part2_, part3_, part4_, part5_, part6_, part7_;

  void SetUp() override {
    const auto& param = GetParam();
    auto field_ = ::arrow::field("f0", param.dtype, param.is_nullable);
    auto schema = ::arrow::schema({field_});

    // since the chunk sizes are constant we derive the number of records to generate
    // from the size of the data type unless it is nested or variable length where
    // we use a hand picked value to avoid generating too large tables
    int64_t bytes_per_record;
    if (param.dtype->byte_width() > 0) {
      bytes_per_record = param.dtype->byte_width();
      if (param.is_nullable) {
        bytes_per_record += sizeof(uint16_t);
      }
    } else {
      // for variable length types we use the size of the first element
      bytes_per_record = 16;
    }

    auto part_length = kPartSize / bytes_per_record;
    auto edit_length = kEditSize / bytes_per_record;

    ASSERT_OK_AND_ASSIGN(part1_, GenerateTable(schema, part_length, /*seed=*/0));
    ASSERT_OK_AND_ASSIGN(part2_, GenerateTable(schema, edit_length, /*seed=*/1));
    ASSERT_OK_AND_ASSIGN(part3_,
                         GenerateTable(schema, part_length, /*seed=*/part_length));
    ASSERT_OK_AND_ASSIGN(part4_, GenerateTable(schema, edit_length, /*seed=*/2));
    ASSERT_OK_AND_ASSIGN(part5_,
                         GenerateTable(schema, part_length, /*seed=*/2 * part_length));
    ASSERT_OK_AND_ASSIGN(part6_, GenerateTable(schema, edit_length, /*seed=*/3));
    ASSERT_OK_AND_ASSIGN(part7_, GenerateTable(schema, edit_length, /*seed=*/4));
  }
};

TEST_P(TestCDCSingleRowGroup, DeleteOnce) {