Working of routing functions (reactive-webflux) with spring cloud contract - spring

Question

I am building a spring webflux project in which I have implemented Routing function as controllers with spring customer driven contract.
I am facing issue while the tests cases are getting executed and I haven't found any solution regarding this online anywhere.
My requirement is to execute the generated tests and loading the application context for n no. of tests.Below is the sample code:
==========Base class===========
#RunWith(SpringRunner.class)
#SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)
public class GetBase extends SampleParentBase{
protected MockMvc mvc ;
#MockBean
private PersonService service;
#MockBean
private ServerRequest request;
#Before
public void setup() throws Exception {
mvc = MockMvcBuilders
.webAppContextSetup(context).build();
}
}
============groovy file==================
Contract.make {
description "."
request {
method GET()
urlPath('/person/1')
headers {
contentType(applicationJson())
header('''Accept''', applicationJson())
}
}
response {
headers {
contentType(applicationJson())
}
status 200
bodyMatchers {
jsonPath('$.name', byType())
jsonPath('$.age', byType())
jsonPath('$.pId', byType())
}
body ('''{
"name":"string",
"age":20,
"pId":"string"
}''')
}
}
=======================Router Configuration====================
#Configuration
public class RoutesConfiguration {
#Autowired
PersonRespository personRespository;
#Bean
RouterFunction<?> routes() {
return nest(path("/person"),
route(RequestPredicates.GET("/{id}"),
request -> ok().body(personRespository.findById(request.pathVariable("id")), Person.class))
.andRoute(method(HttpMethod.GET),
request -> ok().body(personRespository.findAll(), Person.class))
);
}
}

Answer 1

We've updated the snapshot documentation to contain information on how to work with Web Flux. You can check it out here https://cloud.spring.io/spring-cloud-contract/2.0.x/single/spring-cloud-contract.html#_working_with_web_flux and here you have a sample with Web Flux https://github.com/spring-cloud-samples/spring-cloud-contract-samples/tree/master/producer_webflux . Let me copy the part of the documentation for your convenience
Spring Cloud Contract requires the usage of EXPLICIT mode in your generated tests to work with Web Flux.
Maven.
<plugin>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-contract-maven-plugin</artifactId>
<version>${spring-cloud-contract.version}</version>
<extensions>true</extensions>
<configuration>
<testMode>EXPLICIT</testMode>
</configuration>
</plugin>
Gradle.
contracts {
testMode = 'EXPLICIT'
}
The following example shows how to set up a base class and Rest Assured for Web Flux:
#RunWith(SpringRunner.class)
#SpringBootTest(classes = BeerRestBase.Config.class,
webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
properties = "server.port=0")
public abstract class BeerRestBase {
// your tests go here
// in this config class you define all controllers and mocked services
#Configuration
#EnableAutoConfiguration
static class Config {
#Bean
PersonCheckingService personCheckingService() {
return personToCheck -> personToCheck.age >= 20;
}
#Bean
ProducerController producerController() {
return new ProducerController(personCheckingService());
}
}
}