@Test
public void testConvertChild_hintMap() throws Exception {

    ExpressionEvaluator eval = mock(ExpressionEvaluator.class);
    when(eval.evaluate(anyString())).thenAnswer(call -> call.getArgument(0, String.class));
    assertEquals("expect json object for value", key("foo", "one").get(),
            converter().convertChild(xml("foosFoo.xml", "map"), eval));
    assertEquals("expect json object for value", key("bar", "one").get(),
            converter().convertChild(xml("foosBar.xml", "map"), eval));
}