@Test
  public void convertNonEmpty() {
    final Map<Double, Double> map = new HashMap<Double, Double>();
    map.put(1., 0.03);
    map.put(2., 0.04);
    map.put(3.5, 0.05);

    Map<String, Double> expected = new HashMap<String, Double>();
    expected.put("Foo[1.0]", 0.03);
    expected.put("Foo[2.0]", 0.04);
    expected.put("Foo[3.5]", 0.05);

    Map<String, Double> actual =
        _converter.convert(
            "Foo",
            YieldCurve.from(
                InterpolatedDoublesCurve.from(
                    map, Interpolator1DFactory.getInterpolator("Linear"))));

    assertEquals(expected, actual);
  }