@Test
@DisplayName("$.* : root is list, objects are rows")
public void testListOfObjects() {

    String json = "[{\"a\":1, \"b\":\"B\"},{\"a\":2, \"b\":\"C\"},{\"a\":3, \"b\":\"D\"}]";
    DataFrame df = Json.loader().load(json);
    new DataFrameAsserts(df, "a", "b")
            .expectHeight(3)
            .expectRow(0, 1, "B")
            .expectRow(1, 2, "C")
            .expectRow(2, 3, "D");
}