Does Spock have Test Event Listeners

问题

Does spock has any Test event listener like how TestNg has ITestListener. ?

So that I can have access, when the test cases failed etc.

回答1:

Spock does have listeners. Unfortunately the official documentation, which is otherwise excellent, has "TODO" under Writing Custom Extensions: http://spockframework.github.io/spock/docs/1.0/extensions.html.

Update: The official docs have been updated to include helpful information about custom extensions: http://spockframework.org/spock/docs/1.1/extensions.html. See those for more details.

There are two ways: Annotation-based and Global.

Annotation-based

Three pieces here: the annotation, the extension, and the listener.

The annotation:

import java.lang.annotation.*
import org.spockframework.runtime.extension.ExtensionAnnotation

@Retention(RetentionPolicy.RUNTIME)
@Target([ElementType.TYPE, ElementType.METHOD])
@ExtensionAnnotation(ErrorListenerExtension)
@interface ListenForErrors {}

The extension (Updated):

import org.spockframework.runtime.extension.AbstractAnnotationDrivenExtension
import org.spockframework.runtime.model.SpecInfo

class ListenForErrorsExtension extends AbstractAnnotationDrivenExtension<ListenForErrors> {
    void visitSpec(SpecInfo spec) {
        spec.addListener(new ListenForErrorsListener())
    }

   @Override
   void visitSpecAnnotation(ListenForErrors annotation, SpecInfo spec){
    println "do whatever you need here if you do. This method will throw an error unless you override it"
}
}

The listener:

import org.spockframework.runtime.AbstractRunListener
import org.spockframework.runtime.model.ErrorInfo

class ListenForErrorsListener extends AbstractRunListener {
    void error(ErrorInfo error) {
        println "Test failed: ${error.method.name}"
        // Do other handling here
    }
}

You can then use your new annotation on a Spec class or method:

@ListenForErrors
class MySpec extends Specification {
    ...
}

Global

This also has three pieces: the extension, the listener, and the registration.

class ListenForErrorsExtension implements IGlobalExtension {
    void visitSpec(SpecInfo specInfo) {
        specInfo.addListener(new ListenForErrorsListener())
    }
}

You can use the same ListenForErrorsListener class as above.

To register the extension, create a file named org.spockframework.runtime.extension.IGlobalExtension in the META-INF/services directory. If using Gradle/Maven, this will be under src/test/resources. This file should contain only the fully qualified class name of your global extension, for example:

com.example.tests.ListenForErrorsExtension

References

For examples, see the Spock built-in extensions here: https://github.com/spockframework/spock/tree/groovy-1.8/spock-core/src/main/java/spock/lang https://github.com/spockframework/spock/tree/groovy-1.8/spock-core/src/main/java/org/spockframework/runtime/extension/builtin

回答2:

Spock has interaction listening via Mock:

def "should send messages to all subscribers"() {
    given:
    def subscriber = Mock(Subscriber)

    when:
    publisher.send("hello")

    then:
    1 * subscriber.receive("hello")
}

See the interaction based testing in the docs

来源：https://stackoverflow.com/questions/25967241/does-spock-have-test-event-listeners

标签

java

unit-testing

spock