Hands-On Microservices with Kotlin

Testing our controller expressively

We will now work on our CustomerControllerTest to make it more expressive.

First, let's look at our original test for the list of customers:

@Testfun `we should GET a list of customers`() {  given(customerService.getAllCustomers())      .willReturn(listOf(Customer(1, "test"), Customer(2, "mocks")))  mockMvc.perform(get("/customers"))      .andExpect(status().isOk)      .andExpect(jsonPath("\$").isArray)      .andExpect(jsonPath("\$[0].id").value(1))      .andExpect(jsonPath("\$[0].name").value("test"))      .andExpect(jsonPath("\$[1].id").value(2))      .andExpect(jsonPath("\$[1].name").value("mocks"))      .andDo(print())  then(customerService).should(times(1)).getAllCustomers()  then(customerService).shouldHaveNoMoreInteractions()  reset(customerService ...