chore: add delete customer endpoint (#15)

resolves: #6

compose.yaml

@@ -6,4 +6,4 @@ services:
       - 'POSTGRES_PASSWORD=postgres'
       - 'POSTGRES_USER=postgres'
     ports:
-      - '5432'
+      - '5432:5432'

src/main/java/com/cheise_proj/auditing/CustomerController.java

@@ -50,4 +50,10 @@ ResponseEntity<Object> updateCustomer(@PathVariable("id") Long id, @RequestBody
         return ResponseEntity.ok(CustomerDto.toCustomer(customer));
     }
 
+    @DeleteMapping("{id}")
+    ResponseEntity<Object> deleteCustomer(@PathVariable("id") Long id) {
+        customerService.deleteCustomer(id);
+        return ResponseEntity.noContent().build();
+    }
+
 }

src/main/java/com/cheise_proj/auditing/CustomerService.java

@@ -43,4 +43,8 @@ Customer updateCustomer(Long customerId, CustomerDto.UpdateCustomer updateCustom
         return customerRepository.save(customer);
     }
 
+    void deleteCustomer(Long id) {
+        customerRepository.deleteById(id);
+    }
+
 }

src/test/java/com/cheise_proj/auditing/CustomerControllerIT.java

@@ -153,4 +153,22 @@ void updateCustomer_returns_404() throws Exception {
                 ).andExpectAll(MockMvcResultMatchers.status().isNotFound())
                 .andDo(result -> log.info("result: {}", result.getResponse().getContentAsString()));
     }
+
+    @Test
+    void deleteCustomer_returns_204() throws Exception {
+        String customerLocation = (String) mockMvc.perform(MockMvcRequestBuilders.post("/customers")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(CustomerFixture.createCustomerWithAddress(objectMapper))
+
+                ).andExpectAll(MockMvcResultMatchers.status().isCreated())
+                .andDo(result -> log.info("result: {}", result.getResponse().getHeaderValue("location")))
+                .andReturn().getResponse().getHeaderValue("location");
+
+        assert customerLocation != null;
+        mockMvc.perform(MockMvcRequestBuilders.delete(customerLocation)
+                        .contentType(MediaType.APPLICATION_JSON)
+
+                ).andExpectAll(MockMvcResultMatchers.status().isNoContent())
+                .andDo(result -> log.info("result: {}", result.getResponse().getContentAsString()));
+    }
 }

src/test/java/com/cheise_proj/auditing/CustomerServiceTest.java

@@ -179,4 +179,10 @@ void updateCustomer_throw_if_customer_not_found() {
         assertEquals("Customer with id 1 not found", exception.getMessage());
     }
 
+    @Test
+    void deleteCustomer() {
+        Mockito.doNothing().when(customerRepository).deleteById(ArgumentMatchers.anyLong());
+        sut.deleteCustomer(1L);
+        Mockito.verify(customerRepository, Mockito.atMostOnce()).deleteById(ArgumentMatchers.anyLong());
+    }
 }