### Question:
MinimalExample { public String serializeBook() { Book book = new Book("SHDUJ-4532", "Fun with Java", "Alex Theedom"); Jsonb jsonb = JsonbBuilder.create(); String json = jsonb.toJson(book); return json; }  String serializeBook(); Book deserializeBook();  }### Answer:
@Test public void givenBookInstance_shouldSerialiseToJSONString() { String expectedJson = "{\"author\":\"Alex Theedom\",\"id\":\"SHDUJ-4532\",\"title\":\"Fun with Java\"}"; MinimalExample minimalExample = new MinimalExample(); String actualJson = minimalExample.serializeBook(); assertThat(actualJson).isEqualTo(expectedJson); }