c_glib/test/test-sort-to-indices.rb

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class TestSortToIndices < Test::Unit::TestCase
  include Helper::Buildable

  sub_test_case("Integer") do
    def test_no_null
      array = build_int16_array([1, 0, 4, -3])
      assert_equal(build_uint64_array([3, 1, 0, 2]),
                   array.sort_to_indices)
    end

    def test_null
      array = build_int16_array([nil, 1, 0, nil, 4, 3])
      assert_equal(build_uint64_array([2, 1, 5, 4, 0, 3]),
                   array.sort_to_indices)
    end
  end

  sub_test_case("String") do
    def test_no_null
      array = build_string_array(["hello", "world", "a", "z"])
      assert_equal(build_uint64_array([2, 0, 1, 3]),
                   array.sort_to_indices)
    end

    def test_null
      array = build_string_array([nil, "b", "a", nil, "c", "d"])
      assert_equal(build_uint64_array([2, 1, 4, 5, 0, 3]),
                   array.sort_to_indices)
    end
  end
end