Class TestTable

c_glib/test/test-table.rb:18–365

# under the License.

class TestTable < Test::Unit::TestCase
  include Helper::Buildable
  include Helper::Omittable

  sub_test_case(".new") do
    def setup
      @fields = [
        Arrow::Field.new("visible", Arrow::BooleanDataType.new),
        Arrow::Field.new("valid", Arrow::BooleanDataType.new),
      ]
      @schema = Arrow::Schema.new(@fields)
    end

    def dump_table(table)
      table.n_columns.times.collect do |i|
        field = table.schema.get_field(i)
        chunked_array = table.get_column_data(i)
        values = []
        chunked_array.chunks.each do |chunk|
          chunk.length.times do |j|
            values << chunk.get_value(j)
          end
        end
        [
          field.name,
          values,
        ]
      end
    end

    def test_arrays
      require_gi_bindings(3, 3, 1)
      arrays = [
        build_boolean_array([true]),
        build_boolean_array([false]),
      ]
      table = Arrow::Table.new(@schema, arrays)
      assert_equal([
                     ["visible", [true]],
                     ["valid", [false]],
                   ],
                   dump_table(table))
    end

    def test_chunked_arrays
      require_gi_bindings(3, 3, 1)
      arrays = [
        Arrow::ChunkedArray.new([build_boolean_array([true]),
                                 build_boolean_array([false])]),
        Arrow::ChunkedArray.new([build_boolean_array([false]),
                                 build_boolean_array([true])]),
      ]
      table = Arrow::Table.new(@schema, arrays)
      assert_equal([
                     ["visible", [true, false]],
                     ["valid", [false, true]],
                   ],
                   dump_table(table))