Method test_n_nulls

c_glib/test/test-array-builder.rb:328–344

module ArrayBuilderNNullsTests
  def test_n_nulls
    builder = create_builder
    sample_values_with_null = sample_values
    sample_values_with_null[2, 0] = nil
    null_counts = [builder.n_nulls]
    sample_values_with_null.each do |value|
      if value.nil?
        builder.append_null
      else
        builder.append_value(value)
      end
      null_counts << builder.n_nulls
    end
    expected_null_counts = [0, 0, 0] + [1] * (sample_values_with_null.length - 2)
    assert_equal(expected_null_counts,
                 null_counts)
  end
end

class TestArrayBuilder < Test::Unit::TestCase