KotlinSpringBootAddCatTest.kt

val fionaTheCat = Cat(name="Fiona", age=2.6f, weight=5.3f)

@Before
fun createCat() {
  restTemplate.postForLocation("/", HttpEntity(fionaTheCat))
}

@Test
fun indexShouldReturnSingleCat() {
  val response = restTemplate.getForEntity("/", CatsList::class.java)

  assertThat(response.statusCode).isEqualTo(HttpStatus.OK)
  assertThat(response.body).isNotEmpty
  assertThat(response.body.size).isEqualTo(1)

  // We would like to ignore id of the cat here
  assertThat(response.body[0]).isEqualToComparingOnlyGivenFields(fionaTheCat, "name", "age", "weight")
}