diff --git a/src/main/java/guru/springframework/spring6restmvc/controller/BeerController.java b/src/main/java/guru/springframework/spring6restmvc/controller/BeerController.java
new file mode 100644
index 000000000..3335c2583
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/controller/BeerController.java
@@ -0,0 +1,60 @@
+package guru.springframework.spring6restmvc.controller;
+
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.services.BeerService;
+import lombok.AllArgsConstructor;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.UUID;
+
+@RequiredArgsConstructor
+@RestController
+public class BeerController {
+
+ public static final String BEER_PATH="/api/v1/beer";
+ public static final String BEER_PATH_ID=BEER_PATH+ "/{beerId}";
+
+ private final BeerService beerService;
+
+ @PatchMapping(BEER_PATH_ID)
+ public ResponseEntity patchBeer(@RequestBody Beer beer,@PathVariable("beerId") UUID beerId) {
+ beerService.patchBeerById(beerId,beer);
+ return new ResponseEntity(HttpStatus.NO_CONTENT);
+ }
+
+ @DeleteMapping(BEER_PATH_ID)
+ public ResponseEntity DeleteBeer(@PathVariable("beerId") UUID beerId){
+ beerService.deleteBeerById(beerId);
+ return new ResponseEntity(HttpStatus.NO_CONTENT);
+ }
+ @PutMapping(BEER_PATH_ID)
+ public ResponseEntity updateBeer(@RequestBody Beer beer,@PathVariable("beerId") UUID beerId){
+ beerService.updateBeer(beer,beerId);
+ return new ResponseEntity(HttpStatus.NO_CONTENT);
+ }
+
+ @PostMapping(BEER_PATH)
+ public ResponseEntity saveNewBeer(@RequestBody Beer beer){
+ Beer savedBeer=beerService.save(beer);
+ HttpHeaders header=new HttpHeaders();
+ header.add("Location",BEER_PATH + savedBeer.getId().toString());
+ return new ResponseEntity(header,HttpStatus.CREATED);
+ }
+
+ @GetMapping(BEER_PATH)
+ public List<Beer> listBeers(){
+ return beerService.listBeers();
+ }
+
+ @GetMapping(BEER_PATH_ID)
+ public Beer getById(@PathVariable("beerId")UUID beerId){
+
+ return beerService.getById(beerId);
+ }
+
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/controller/CustomerController.java b/src/main/java/guru/springframework/spring6restmvc/controller/CustomerController.java
new file mode 100644
index 000000000..b735f13ea
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/controller/CustomerController.java
@@ -0,0 +1,51 @@
+package guru.springframework.spring6restmvc.controller;
+
+import guru.springframework.spring6restmvc.model.Customer;
+import guru.springframework.spring6restmvc.services.CustomerService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.UUID;
+
+@RequiredArgsConstructor
+@RestController
+public class CustomerController {
+
+ public static final String CUSTOMER_PATH= "/api/v1/customer";
+ public static final String CUSTOMER_PATH_ID= CUSTOMER_PATH+ "/{customerId}";
+ private final CustomerService customerService;
+ @DeleteMapping(CUSTOMER_PATH_ID)
+ public ResponseEntity deleteById(@PathVariable("customerId") UUID customerId){
+ customerService.deleteById(customerId);
+ return new ResponseEntity(HttpStatus.NO_CONTENT);
+ }
+
+ @PutMapping(CUSTOMER_PATH_ID)
+ public ResponseEntity updateCustomer(@PathVariable("customerId") UUID customerId, @RequestBody Customer customer){
+ customerService.updateCustomerById(customer, customerId);
+ return new ResponseEntity(HttpStatus.NO_CONTENT);
+ }
+ @PostMapping(CUSTOMER_PATH)
+ public ResponseEntity saveCustomer(@RequestBody Customer customer){
+ Customer savedCustomer= customerService.saveCustomer(customer);
+ HttpHeaders header=new HttpHeaders();
+ header.add("Location",CUSTOMER_PATH+ savedCustomer.getId().toString());
+ return new ResponseEntity(header, HttpStatus.CREATED);
+ }
+
+ @GetMapping(CUSTOMER_PATH)
+ public List<Customer> listCustomers(){
+ return customerService.listCustomers();
+ }
+ @GetMapping(CUSTOMER_PATH_ID)
+ public Customer getById(@PathVariable("customerId") UUID customerId){
+
+ return customerService.getById(customerId);
+ }
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/model/Beer.java b/src/main/java/guru/springframework/spring6restmvc/model/Beer.java
new file mode 100644
index 000000000..5643b84d4
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/model/Beer.java
@@ -0,0 +1,22 @@
+package guru.springframework.spring6restmvc.model;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Builder
+@Data
+public class Beer {
+ private UUID id;
+ private Integer version;
+ private String beerName;
+ private BeerStyle beerStyle;
+ private String upc;
+ private Integer quantityOnHand;
+ private BigDecimal price;
+ private LocalDateTime createdDate;
+ private LocalDateTime updateDate;
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/model/BeerStyle.java b/src/main/java/guru/springframework/spring6restmvc/model/BeerStyle.java
new file mode 100644
index 000000000..7d6bffe26
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/model/BeerStyle.java
@@ -0,0 +1,5 @@
+package guru.springframework.spring6restmvc.model;
+
+public enum BeerStyle {
+ LAGER, PILSNER, STOUT, GOSE, PORTER, ALE, WHEAT, IPA, PALE_ALE, SAISON
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/model/Customer.java b/src/main/java/guru/springframework/spring6restmvc/model/Customer.java
new file mode 100644
index 000000000..1d19af44a
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/model/Customer.java
@@ -0,0 +1,22 @@
+package guru.springframework.spring6restmvc.model;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.util.UUID;
+
+@Data
+@Builder
+public class Customer {
+
+ private UUID Id;
+ private String customerName;
+ private BigDecimal version;
+ private LocalDate createdDate;
+ private LocalDate lastModifiedDate;
+
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/services/BeerService.java b/src/main/java/guru/springframework/spring6restmvc/services/BeerService.java
new file mode 100644
index 000000000..338e42459
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/services/BeerService.java
@@ -0,0 +1,20 @@
+package guru.springframework.spring6restmvc.services;
+
+import guru.springframework.spring6restmvc.model.Beer;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface BeerService {
+
+ Beer getById(UUID Id);
+ List <Beer> listBeers();
+
+ Beer save(Beer beer);
+
+ void updateBeer(Beer beer, UUID beerId);
+
+ void deleteBeerById(UUID beerId);
+
+ void patchBeerById(UUID beerId, Beer beer);
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/services/BeerServiceImpl.java b/src/main/java/guru/springframework/spring6restmvc/services/BeerServiceImpl.java
new file mode 100644
index 000000000..ccce7e227
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/services/BeerServiceImpl.java
@@ -0,0 +1,122 @@
+package guru.springframework.spring6restmvc.services;
+
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.model.BeerStyle;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.*;
+
+@Service
+public class BeerServiceImpl implements BeerService {
+ private Map<UUID,Beer> beerMap;
+
+ public BeerServiceImpl(){
+ this.beerMap= new HashMap<>();
+
+ Beer beer1=Beer.builder()
+ .id(UUID.randomUUID())
+ .upc("h")
+ .price(new BigDecimal(12.3))
+ .version(2)
+ .beerName("asmara beer")
+ .quantityOnHand(123)
+ .beerStyle(BeerStyle.ALE)
+ .createdDate(LocalDateTime.now())
+ .updateDate(LocalDateTime.now())
+ .build();
+
+ Beer beer2=Beer.builder()
+ .id(UUID.randomUUID())
+ .upc("h")
+ .price(new BigDecimal(12.3))
+ .version(2)
+ .beerName("asmara beer")
+ .quantityOnHand(123)
+ .beerStyle(BeerStyle.ALE)
+ .createdDate(LocalDateTime.now())
+ .updateDate(LocalDateTime.now())
+ .build();
+
+ Beer beer3=Beer.builder()
+ .id(UUID.randomUUID())
+ .upc("h")
+ .price(new BigDecimal(12.3))
+ .version(2)
+ .beerName("asmara beer")
+ .quantityOnHand(123)
+ .beerStyle(BeerStyle.ALE)
+ .createdDate(LocalDateTime.now())
+ .updateDate(LocalDateTime.now())
+ .build();
+ beerMap.put(beer1.getId(),beer1);
+ beerMap.put(beer2.getId(),beer2);
+ beerMap.put(beer3.getId(),beer3);
+ }
+
+ @Override
+ public Beer getById(UUID Id) {
+ return beerMap.get(Id);
+ }
+
+ @Override
+ public List<Beer> listBeers(){
+ return new ArrayList<>(beerMap.values());
+ }
+
+ @Override
+ public Beer save(Beer beer) {
+
+ Beer savedBeer=Beer.builder()
+ .id(UUID.randomUUID())
+ .upc(beer.getUpc())
+ .price(new BigDecimal(12.3))
+ .version(2)
+ .beerName(beer.getBeerName())
+ .quantityOnHand(123)
+ .beerStyle(BeerStyle.ALE)
+ .createdDate(LocalDateTime.now())
+ .updateDate(LocalDateTime.now())
+ .build();
+ beerMap.put(savedBeer.getId(),savedBeer);
+ return savedBeer;
+ }
+
+ @Override
+ public void updateBeer(Beer beer, UUID beerId) {
+ Beer existingBeer=beerMap.get(beerId);
+ existingBeer.setBeerName(beer.getBeerName());
+ existingBeer.setPrice(beer.getPrice());
+ }
+
+ @Override
+ public void deleteBeerById(UUID beerId) {
+ beerMap.remove(beerId);
+ }
+
+ @Override
+ public void patchBeerById(UUID beerId, Beer beer) {
+ Beer existing = beerMap.get(beerId);
+
+ if (StringUtils.hasText(beer.getBeerName())) {
+ existing.setBeerName(beer.getBeerName());
+ }
+
+ if (beer.getBeerStyle() != null) {
+ existing.setBeerStyle(beer.getBeerStyle());
+ }
+
+ if (beer.getPrice() != null) {
+ existing.setPrice(beer.getPrice());
+ }
+
+ if (beer.getQuantityOnHand() != null) {
+ existing.setQuantityOnHand(beer.getQuantityOnHand());
+ }
+
+ }
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/services/CustomerService.java b/src/main/java/guru/springframework/spring6restmvc/services/CustomerService.java
new file mode 100644
index 000000000..e64fda6e3
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/services/CustomerService.java
@@ -0,0 +1,21 @@
+package guru.springframework.spring6restmvc.services;
+
+import guru.springframework.spring6restmvc.model.Customer;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface CustomerService {
+
+
+ List<Customer> listCustomers();
+ Customer getById(UUID Id);
+
+ Customer saveCustomer(Customer customer);
+
+ void deleteById(UUID customerId);
+
+ void patchCustomerById(UUID customerId, Customer customer);
+
+ void updateCustomerById(Customer customer,UUID customerId);
+}
\ No newline at end of file
diff --git a/src/main/java/guru/springframework/spring6restmvc/services/CustomerServiceImpl.java b/src/main/java/guru/springframework/spring6restmvc/services/CustomerServiceImpl.java
new file mode 100644
index 000000000..f12c22aea
--- /dev/null
+++ b/src/main/java/guru/springframework/spring6restmvc/services/CustomerServiceImpl.java
@@ -0,0 +1,96 @@
+package guru.springframework.spring6restmvc.services;
+
+import guru.springframework.spring6restmvc.model.Customer;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.util.*;
+
+@Service
+public class CustomerServiceImpl implements CustomerService{
+ private Map<UUID, Customer> customerMap;
+ public CustomerServiceImpl(){
+ this.customerMap= new HashMap<>();
+
+ Customer customer1= Customer.builder()
+ .customerName("henos")
+ .Id(UUID.randomUUID())
+ .createdDate(LocalDate.now())
+ .lastModifiedDate(LocalDate.now())
+ .version(new BigDecimal(1))
+ .build();
+
+ Customer customer2= Customer.builder()
+ .customerName("lidya")
+ .Id(UUID.randomUUID())
+ .createdDate(LocalDate.now())
+ .lastModifiedDate(LocalDate.now())
+ .version(new BigDecimal(1))
+ .build();
+ Customer customer3= Customer.builder()
+ .customerName("ghirmay")
+ .Id(UUID.randomUUID())
+ .createdDate(LocalDate.now())
+ .lastModifiedDate(LocalDate.now())
+ .version(new BigDecimal(1))
+ .build();
+
+ customerMap.put(customer1.getId(),customer1);
+ customerMap.put(customer2.getId(),customer2);
+ customerMap.put(customer3.getId(),customer3);
+ }
+
+ @Override
+ public void patchCustomerById(UUID customerId, Customer customer) {
+ Customer existing = customerMap.get(customerId);
+
+ if (StringUtils.hasText(customer.getCustomerName())) {
+ existing.setCustomerName(customer.getCustomerName());
+ }
+ }
+
+ @Override
+ public List<Customer> listCustomers() {
+ return new ArrayList<>(customerMap.values());
+ }
+
+ @Override
+ public Customer getById(UUID Id) {
+ return customerMap.get(Id);
+ }
+
+
+
+ @Override
+ public Customer saveCustomer(Customer customer) {
+ Customer customerSaved= Customer.builder()
+ .customerName(customer.getCustomerName())
+ .Id(UUID.randomUUID())
+ .createdDate(LocalDate.now())
+ .lastModifiedDate(LocalDate.now())
+ .version(new BigDecimal(1))
+ .build();
+ customerMap.put(customerSaved.getId(),customerSaved);
+ return customerSaved;
+ }
+
+
+
+ @Override
+ public void updateCustomerById(Customer customer,UUID customerId) {
+ Customer existingCustomer= customerMap.get(customerId);
+ existingCustomer.setCustomerName(customer.getCustomerName());
+ existingCustomer.setVersion(customer.getVersion());
+
+ }
+
+
+ @Override
+ public void deleteById(UUID customerId){
+ customerMap.remove(customerId);
+ }
+
+
+}
\ No newline at end of file
diff --git a/src/test/java/guru/springframework/spring6restmvc/controller/BeerControllerTest.java b/src/test/java/guru/springframework/spring6restmvc/controller/BeerControllerTest.java
new file mode 100644
index 000000000..959f914af
--- /dev/null
+++ b/src/test/java/guru/springframework/spring6restmvc/controller/BeerControllerTest.java
@@ -0,0 +1,116 @@
+package guru.springframework.spring6restmvc.controller;
+
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.services.BeerService;
+import guru.springframework.spring6restmvc.services.BeerServiceImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.hamcrest.core.Is.is;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.verify;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+
+@WebMvcTest(BeerController.class)
+public class BeerControllerTest {
+
+ @Autowired
+ MockMvc mockMvc;
+
+ @Autowired
+ ObjectMapper objectMapper;
+
+ @MockBean
+ BeerService beerService;
+
+
+ BeerServiceImpl beerServiceImpl;
+ @BeforeEach
+ void setUp(){
+ beerServiceImpl= new BeerServiceImpl();
+ }
+
+ @Test
+ void deleteById()throws Exception{
+ Beer beer=beerServiceImpl.listBeers().get(0);
+
+ mockMvc.perform(delete("/api/v1/beer/"+beer.getId())
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect(status().isNoContent());
+ ArgumentCaptor<UUID> uuidArgumentCaptor= ArgumentCaptor.forClass(UUID.class);
+
+ verify(beerService).deleteBeerById(uuidArgumentCaptor.capture());
+
+ assertThat(beer.getId()).isEqualTo(uuidArgumentCaptor.getValue());
+
+ }
+ @Test
+ void updateBeer() throws Exception{
+ Beer beer=beerServiceImpl.listBeers().get(0);
+ mockMvc.perform(put("/api/v1/beer/"+beer.getId())
+ .accept(MediaType.APPLICATION_JSON)
+ .contentType(MediaType.APPLICATION_JSON)
+ .content(objectMapper.writeValueAsString(beer))
+ ).andExpect(status().isNoContent());
+
+ verify(beerService).updateBeer(any(Beer.class),any(UUID.class));
+
+ }
+ @Test
+ void testCreateNewBeer() throws Exception {
+ Beer beer = beerServiceImpl.listBeers().get(0);
+ beer.setVersion(null);
+ beer.setId(null);
+
+ given(beerService.save(any(Beer.class))).willReturn(beerServiceImpl.listBeers().get(1));
+
+ mockMvc.perform(post("/api/v1/beer")
+ .accept(MediaType.APPLICATION_JSON)
+ .contentType(MediaType.APPLICATION_JSON)
+ .content(objectMapper.writeValueAsString(beer)))
+ .andExpect(status().isCreated())
+ .andExpect(header().exists("Location"));
+
+
+ }
+ @Test
+ void listBeers() throws Exception{
+
+ given(beerService.listBeers()).willReturn(beerServiceImpl.listBeers());
+ mockMvc.perform(get("/api/v1/beer")
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect( content().contentType(MediaType.APPLICATION_JSON) )
+ .andExpect(status().isOk())
+ .andExpect(jsonPath("$.length()",is(3)));
+ }
+ @Test
+ void getById() throws Exception{
+ Beer testBeer=beerServiceImpl.listBeers().get(0);
+
+ given(beerService.getById(any(UUID.class))).willReturn(testBeer);
+
+ mockMvc.perform(get("/api/v1/beer/" + UUID.randomUUID())
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+ .andExpect(status().isOk());
+
+ }
+
+}
\ No newline at end of file
diff --git a/src/test/java/guru/springframework/spring6restmvc/controller/CustomerControllerTest.java b/src/test/java/guru/springframework/spring6restmvc/controller/CustomerControllerTest.java
new file mode 100644
index 000000000..95002229c
--- /dev/null
+++ b/src/test/java/guru/springframework/spring6restmvc/controller/CustomerControllerTest.java
@@ -0,0 +1,123 @@
+package guru.springframework.spring6restmvc.controller;
+
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import guru.springframework.spring6restmvc.model.Customer;
+import guru.springframework.spring6restmvc.services.CustomerService;
+import guru.springframework.spring6restmvc.services.CustomerServiceImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.hamcrest.core.Is.is;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.verify;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+
+@WebMvcTest(CustomerController.class)
+public class CustomerControllerTest {
+
+ @Autowired
+ MockMvc mockMvc;
+
+ @Autowired
+ ObjectMapper objectMapper;
+
+ @MockBean
+ CustomerService customerService;
+
+ CustomerServiceImpl customerServiceImpl;
+
+ @BeforeEach
+ void setUp() {
+ customerServiceImpl = new CustomerServiceImpl();
+ }
+
+ @Captor
+ ArgumentCaptor<UUID> uuidArgumentCaptor;
+
+ @Test
+ void testDeleteCustomer() throws Exception {
+ Customer customer = customerServiceImpl.listCustomers().get(0);
+
+ mockMvc.perform(delete("/api/v1/customer/" + customer.getId())
+ .contentType(MediaType.APPLICATION_JSON))
+ .andExpect(status().isNoContent());
+
+ verify(customerService).deleteById(uuidArgumentCaptor.capture());
+
+ assertThat(customer.getId()).isEqualTo(uuidArgumentCaptor.getValue());
+ }
+
+ @Test
+ void testUpdateCustomer() throws Exception {
+ Customer customer = customerServiceImpl.listCustomers().get(0);
+
+ mockMvc.perform(put(CustomerController.CUSTOMER_PATH+ "/" + customer.getId())
+ .content(objectMapper.writeValueAsString(customer))
+ .contentType(MediaType.APPLICATION_JSON)
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect(status().isNoContent());
+
+
+
+ verify(customerService).updateCustomerById(any(Customer.class),uuidArgumentCaptor.capture());
+
+ assertThat(customer.getId()).isEqualTo(uuidArgumentCaptor.getValue());
+ }
+
+ @Test
+ void testCreateCustomer() throws Exception {
+ Customer customer = customerServiceImpl.listCustomers().get(0);
+ customer.setId(null);
+ customer.setVersion(null);
+
+ given(customerService.saveCustomer(any(Customer.class)))
+ .willReturn(customerServiceImpl.listCustomers().get(1));
+
+ mockMvc.perform(post(CustomerController.CUSTOMER_PATH).contentType(MediaType.APPLICATION_JSON)
+ .accept(MediaType.APPLICATION_JSON)
+ .content(objectMapper.writeValueAsString(customer)))
+ .andExpect(status().isCreated())
+ .andExpect(header().exists("Location"));
+ }
+
+ @Test
+ void listAllCustomers()throws Exception{
+ given(customerService.listCustomers()).willReturn(customerServiceImpl.listCustomers());
+
+ mockMvc.perform(get("/api/v1/customer")
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+ .andExpect(status().isOk())
+ .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+ .andExpect(jsonPath("$.length()", is(3)));
+ }
+
+ @Test
+ void getCustomerById() throws Exception {
+ Customer customer = customerServiceImpl.listCustomers().get(0);
+
+ given(customerService.getById(customer.getId())).willReturn(customer);
+
+ mockMvc.perform(get(CustomerController.CUSTOMER_PATH + "/" + customer.getId())
+ .accept(MediaType.APPLICATION_JSON))
+ .andExpect(status().isOk())
+ .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+ .andExpect(jsonPath("$.customerName", is(customer.getCustomerName())));
+
+ }
+
+}
\ No newline at end of file