RAML Mock Server

EOL Notice

This library is considered EOL and is not under support anymore.

Description

This tool is designed to allow validation of RAML API specifications against your own descriptors in a MockServer setup.

Utilising both the MockServer toolset and the RAML Java Parser, it provides abilities to define RAML specifications that you can ensure that MockServer Expectations that are hit actually meet the API specifications specified by the remote service.

Supported RAML Versions

Currently, this library supports RAML 0.8 only.

Dependency

<dependency>
    <groupId>net.ozwolf</groupId>
    <artifactId>raml-mock-server</artifactId>
    <version>${current.version}</version>
</dependency>

Content Validation

This library currently validates specified request and response content if the Content-Type header is compatible with application/json and if the RAML specification has an appropriate schema defined for the content.

This validation is provided by the JSON Schema Validator tool.

Methods To Check

By default, the obeyedBy check will only check interactions on GET, POST, PUT and DELETE methods. If you want to include other interactions such as HEAD, OPTIONS, etc., then simply include those in the obeyedBy call.

For example, .obeyedBy(client, "HEAD", "OPTIONS")

Examples

JUnit Class Rule

public class MyJunitTest {
    @Rule
    public final MockServerRule server = new MockServerRule(5000);
    
    @ClassRule
    public final static RamlSpecificationsRule SPECIFICATIONS = new RamlSpecificationsRule()
            .withSpecifications(
                new ClassPathSpecification("my-local-service", "apispecs/apispecs.yml"),
                new RemoteSpecification("my-remote-service", "http://remote.site.com/apispecs.zip", ZipArchiveHandler.handler("target/specifications/my-remote-service", "apispecs.raml"))
            );
            
    @Test
    public void shouldInteractWithRemoteServiceCorrectly() {
        MockServiceClient client = new MockServiceClient("localhost", 5000);
        
        client.when(
            request()
                .withPath("/hello/world")
                .withMethod("GET")
                .withHeaders(
                    new Header(HttpHeaders.ACCEPT, "text/plain")
                )
        ).respond(
            response()
                .withStatusCode(200)
                .withHeaders(
                    new Header(HttpHeaders.CONTENT_TYPE, "text/plain")
                )
                .withBody("Hello World!")
        )
        
        Client testClient = Client.create(new DefaultClientConfig());
        
        ClientResponse response = testClient.resource("http://localhost:5000/hello/world")
                .header(HttpHeaders.ACCEPT, "text/plain")
                .get(ClientResponse.class);
                
        try {
            assertThat(response.getHeaders().getFirst(HttpHeaders.CONTENT_TYPE), is("text/plain"));
            assertThat(response.getEntity(String.class), is("Hello World!"));
        } finally {
            response.close();
        }
        
        RamlSpecification.Result result = SPECIFICATIONS.get("my-remote-service").obeyedBy(client);
        
        assertTrue(result.getFormattedErrorMessage(), result.isValid());
    }
}

Direct Specification Usage

public class MyDirectSpecificationUsage {
    @Rule
    public final MockServerRule server = new MockServerRule(5000);
    
    private final static RamlSpecification MY_LOCAL_SERVICE = new ClassPathSpecification("my-local-service", "apispecs/apispecs.yml");
    
    @BeforeClass
    public static void setUpClass(){
        MY_LOCAL_SERVICE.initialize();
    }
    
    @Test
    public void shouldInteractWithRemoteServiceCorrectly() {
        MockServiceClient client = new MockServiceClient("localhost", 5000);
        
        client.when(
            request()
                .withPath("/hello/world")
                .withMethod("GET")
                .withHeaders(
                    new Header(HttpHeaders.ACCEPT, "text/plain")
                )
        ).respond(
            response()
                .withStatusCode(200)
                .withHeaders(
                    new Header(HttpHeaders.CONTENT_TYPE, "text/plain")
                )
                .withBody("Hello World!")
        )
        
        Client testClient = Client.create(new DefaultClientConfig());
        
        ClientResponse response = testClient.resource("http://localhost:5000/hello/world")
                .header(HttpHeaders.ACCEPT, "text/plain")
                .get(ClientResponse.class);
                
        try {
            assertThat(response.getHeaders().getFirst(HttpHeaders.CONTENT_TYPE), is("text/plain"));
            assertThat(response.getEntity(String.class), is("Hello World!"));
        } finally {
            response.close();
        }
        
        RamlSpecification.Result result = MY_LOCAL_SERVICE.obeyedBy(client);
        
        assertTrue(result.getFormattedErrorMessage(), result.isValid());
    }
}

Specification Result Output

The RamlSpecification.Result.getFormattedErrorMessage() output is designed to be human-readable in a JUnit output. It's output will look something like the following:

Expectation(s) did not meet RAML specification requirements:
	[ expectation ] [ PUT ] [ /hello/Sarah/greetings ]
	    [ request ] [ security ] Missing required security credentials.  Must use one of [ my-token, basic ].
		[ request ] [ uri ] [ name ] Value of [ Sarah ] does not meet API requirements.
		[ request ] [ body ] object has missing required properties (["greeting"])
		[ response ] [ body ] object has missing required properties (["name"])

Other Documentation

Please see the following documentation for other information:

• MockServer
• RAML Specifications
• RAML Java Parser
• JSON Schema

Other Credits

• JSON Schema Validator
• Zip4j