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openstack4j-integrationtest

Integration tests for OpenStack4j written in Groovy using Spock test-framework and Betamax to record/replay server-client communication.

HOW TO

Write Integration Tests (IT)

Betamax is used to record and replay client-server communication to/from a tape. Therefore it is necessary to setup a RecorderRule, which specifies in which folder the tape can be found (tapeRoot), some match rules (e.g. by request/response method, path, query parameters) and a default mode for the tape which should always be read & write.
Each test method that wants to use the recordings needs to specify a tape via the annotation @Betamax(tape="<tapeName>").

Here are the basics of how a Specification should look like:

@Slf4j
class KeystoneRegionServiceSpec extends AbstractSpec {
    
    // setup test name
    @Rule TestName KeystoneRegionServiceTest
    
    // setup recorder rule used by Betamax
    @Rule public RecorderRule recorderRule = new RecorderRule(
            Configuration.builder()
                    .tapeRoot(new File(TAPEROOT + "identity.v3"))
                    .defaultMatchRules(MatchRules.method, MatchRules.path, MatchRules.queryParams)
                    .defaultMode(TapeMode.READ_WRITE)
                    .build());;
    
    // the following logic ensures all required attributes are set                 
    static final boolean skipTest
    
        static {
            if(
            USER_ID == null ||
            AUTH_URL == null ||
            PASSWORD == null ||
            DOMAIN_ID == null  ) {
    
                skipTest = true
            }
            else{
                skipTest = false
            }
        }
    
        def setupSpec() {
    
            if( skipTest != true ) {
                log.info("USER_ID: " + USER_ID)
                log.info("AUTH_URL: " + AUTH_URL)
                log.info("PASSWORD: " + PASSWORD)
                log.info("DOMAIN_ID: " + DOMAIN_ID)
                log.info("PROJECT_ID: " + PROJECT_ID)
            }
            else {
                log.warn("Skipping integration-test cases because not all mandatory attributes are set.")
            }
        }
    
        def setup() {
            log.info("-> Test: '$KeystoneRegionServiceTest.methodName'")
        }                
        
        @IgnoreIf({ skipTest })
        
        // specify the tape name
        @Betamax(tape="regionService_all.tape")
        def "region service CRUD test cases"() {
        
            // spock test cases
        
        }
}

Run ITests

  • Integration tests are executed in the integration-test phase. Do a mvn clean integration-test or mvn clean verify (or any phase later) to trigger the tests.

Recording

In order to record the communication to the tapes the following environment attributes must be set:

  • attributes used: (incomplete)
    • OS_AUTH_URL = "http://<fqdn>:5000/v3"
    • OS_USER_ID
    • OS_USER_NAME
    • OS_PASSWORD
    • OS_PROJECT_ID
    • OS_PROJECT_NAME
    • OS_PROJECT_DOMAIN_ID
    • OS_PROJECT_DOMAIN_NAME
    • OS_DOMAIN_ID
    • OS_DOMAIN_NAME

Afterwards these values in the tapes must be replaced using the default ones defined in the AbstractSpec.

Playback

In playback mode the recordings are used. Make sure no OS_*-attributes are set.

Important

In case of com.fasterxml.jackson.databind.JsonMappingException: Unexpected end-of-input in VALUE_STRING remove the Content-Length header from the recording. Use this regex for search & replace: ^\s*Content-Length: '[0-9]*'\R .