Add delete endpoint and integration tests

backend/src/main/java/com/neuefische/team2/backend/restaurant/RestaurantController.java

@@ -3,6 +3,8 @@
 import com.neuefische.team2.backend.restaurant.domain.Restaurant;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
@@ -21,4 +23,9 @@ public RestaurantController(RestaurantService restaurantService) {
     List<Restaurant> getRestaurants() {
         return restaurantService.getRestaurants();
     }
+
+    @DeleteMapping("{id}")
+    void deleteRestaurant(@PathVariable String id) {
+        restaurantService.deleteRestaurant(id);
+    }
 }

backend/src/test/java/com/neuefische/team2/backend/restaurant/RestaurantControllerIntegrationTest.java

@@ -1,9 +1,11 @@
 package com.neuefische.team2.backend.restaurant;
 
+import com.neuefische.team2.backend.restaurant.domain.Restaurant;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
 import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
@@ -16,12 +18,51 @@ class RestaurantControllerIntegrationTest {
     @Autowired
     private MockMvc mockMvc;
 
+    @Autowired
+    private RestaurantRepository restaurantRepository;
+
     @Test
     void getAllProducts_whenNoProductInDB_thenReturnEmptyList() throws Exception {
         mockMvc.perform(MockMvcRequestBuilders.get("/api/restaurants"))
                 .andExpect(MockMvcResultMatchers.status().isOk())
                 .andExpect(MockMvcResultMatchers.content().json("[]"));
     }
 
+    @Test
+    void deleteRestaurant_whenNoProductInDB_thenDBStaysEmpty() throws Exception {
+        //GIVEN
+        String id = "123";
+
+        //WHEN
+        mockMvc.perform(MockMvcRequestBuilders.delete("/api/restaurants/" + id))
+                //THEN
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().string(""));
+
+        mockMvc.perform(MockMvcRequestBuilders.get("/api/restaurants"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().json("[]"));
+    }
+
+    @Test
+    @DirtiesContext
+    void deleteRestaurant_whenProductInDB_thenDBDoesNotContainProductAnymore() throws Exception {
+        //GIVEN
+        Restaurant r1 = new Restaurant(null, "test-title", "test-city");
+        Restaurant r2 = new Restaurant(null, "test-title-to-remove", "test-city");
+        Restaurant r1WithId = restaurantRepository.insert(r1);
+        Restaurant restaurantToDelete = restaurantRepository.insert(r2);
+
+        //WHEN
+        mockMvc.perform(MockMvcRequestBuilders.delete("/api/restaurants/" + restaurantToDelete.id()));
+
+        //THEN
+        mockMvc.perform(MockMvcRequestBuilders.get("/api/restaurants"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.jsonPath("$..id").value(r1WithId.id()))
+                .andExpect(MockMvcResultMatchers.jsonPath("$..title").value(r1WithId.title()))
+                .andExpect(MockMvcResultMatchers.jsonPath("$..city").value(r1WithId.city()));
+    }
+
     // TODO: Write a test to receive one restaurant as soon as POST endpoint is implemented.
 }