Method setup

c_glib/test/test-array-statistics.rb:21–40

  include Helper::Buildable

  def setup
    omit("Parquet is required") unless defined?(::Parquet)

    Tempfile.create(["data", ".parquet"]) do |file|
      @file = file
      array = build_int64_array([nil, -(2 ** 32), 2 ** 32])
      @table = build_table("int64" => array)
      writer = Parquet::ArrowFileWriter.new(@table.schema, @file.path)
      chunk_size = 1024
      writer.write_table(@table, chunk_size)
      writer.close
      reader = Parquet::ArrowFileReader.new(@file.path)
      begin
        @statistics = reader.read_table.get_column_data(0).get_chunk(0).statistics
        yield
      ensure
        reader.unref
      end
    end
  end

  test("#has_null_count?") do
    assert do