jsample.java

@Test
    void createDriver() throws Exception {
        String driverJson = "{\"nickname\": \"Speed Racer\", \"firstName\": \"Tester\", \"lastName\": \"McTesty\", \"birthday\": \"1990-04-18\"}";
        MockHttpServletRequestBuilder request = post("/api/drivers/new")
                .contentType(MediaType.APPLICATION_JSON)
                .content(driverJson);

        mvc.perform(request)
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.id").exists());