Testing GET /batteries/:id

ApplicationTests.java

package np.com.roshanadhikary.testdemo;

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

@SpringBootTest
@AutoConfigureMockMvc
class ApplicationTests {
  // ..
  @Test
  void shouldFetchBatteryID1() throws Exception {
    mockMvc
            .perform(get("/batteries/1"))
            .andDo(print())
            .andExpect(status().isOk())
            .andExpect(jsonPath("$.id").value(1))
            .andExpect(jsonPath("$.name").value(H2Bootstrap.mockBatteries.get(0).getName()))
            .andExpect(jsonPath("$.postcode").value(H2Bootstrap.mockBatteries.get(0).getPostcode()))
            .andExpect(jsonPath("$.capacity").value(H2Bootstrap.mockBatteries.get(0).getCapacity()));
  }
}