Hello Beer Camel Quality Control

[rosebaby3892]

In our previous blog post we saw our Camels smuggling along their craft beer contraband to our thirsty customers. We can expect them to expand our craft business quite rapidly in the near future and open up new black and white markets (hopefully this will keep our shareholders happy and quiet for the time being!). For all this expansion to succeed however, we need to get our quality control in order pronto! The last thing we want is for dromedaries disguised as camels to deliver imitation crafts to our customers and special lead thereby compromise our highly profitable trade routes. So, high time we put some unit testing in place and make our implementation a little more flexible and maintainable.

In this blog post we'll unit test our Spring REST controller and our Camel route. We also get rid of those hardcoded endpoints and replace them with proper environment-specific properties. So buckle up, grab a beer and let's get started!

Oh and as always, final code can be viewed online .

 

Unit testing the controller
Though this technically has nothing to do with Camel, it's good practice to unit test all important classes, so let's first tackle and unit test our Spring Boot REST controller.

We only need the basic Spring Boot Starter Test dependency for this guy:

 

?
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>
<span class="copy">Copy</span>
Let's test the most interesting part of the controller, ie the saveOrder method.

 

?
@RunWith(SpringRunner.class)
@WebMvcTest(OrderController.class)
public class OrderControllerTest {
 
    @Autowired
    private MockMvc mockMvc;
 
    @MockBean
    private OrderRepository orderRepositoryMock;
 
    @Test
    public void saveOrder() throws Exception {
        OrderItem orderItem1 = new OrderItemBuilder().setInventoryItemId(1L).setQuantity(100L).build();
        OrderItem orderItem2 = new OrderItemBuilder().setInventoryItemId(2L).setQuantity(50L).build();
        Order order = new OrderBuilder().setCustomerId(1L).addOrderItems(orderItem1, orderItem2).build();
 
        OrderItem addedItem1 = new OrderItemBuilder().setId(2L).setInventoryItemId(1L).setQuantity(100L).build();
        OrderItem addedItem2 = new OrderItemBuilder().setId(3L).setInventoryItemId(2L).setQuantity(50L).build();
        Order added = new OrderBuilder().setId(1L).setCustomerId(1L).addOrderItems(addedItem1, addedItem2).build().