/**
     * Maps the finish event for the given build operation.
     */
    InternalOperationFinishedProgressEvent createFinishedEvent(TO descriptor, DETAILS details, OperationFinishEvent finishEvent);

    /**
     * Maps the given progress event. Returns {@code null} of the event should be discarded and not forwarded to the client.
     */

        return new DefaultOperationStartedProgressEvent(startEvent.getStartTime(), descriptor);
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultProjectConfigurationDescriptor descriptor, ConfigureProjectBuildOperationType.Details details, OperationFinishEvent finishEvent) {

        return new DefaultOperationStartedProgressEvent(startEvent.getStartTime(), descriptor);
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultWorkItemDescriptor descriptor, ExecuteWorkItemBuildOperationType.Details details, OperationFinishEvent finishEvent) {

        } else {
            return null;
        }
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultFileDownloadDescriptor descriptor, ExternalResourceReadBuildOperationType.Details details, OperationFinishEvent finishEvent) {

        return new DefaultOperationStartedProgressEvent(startEvent.getStartTime(), descriptor);
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultTransformDescriptor descriptor, ExecutePlannedTransformStepBuildOperationDetails details, OperationFinishEvent finishEvent) {

            }
        }

        @Override
        public void generateFinishEvent(BuildOperationDescriptor buildOperation, OperationFinishEvent finishEvent) {
            progressEventConsumer.finished(mapper.createFinishedEvent(descriptor, buildOperation.getDetails(), finishEvent));
        }
    }

    private static final Operation DISABLED_OPERATION = new Operation() {
        @Override

        return new DefaultTaskStartedProgressEvent(startEvent.getStartTime(), descriptor);
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultTaskDescriptor descriptor, ExecuteTaskBuildOperationDetails details, OperationFinishEvent finishEvent) {
        TaskInternal task = details.getTask();

        1 * consumer.progress(mappedProgressEvent)
        0 * _

        when:
        generator.finished(operation, finishEvent)

        then:
        1 * mapper2.createFinishedEvent(clientDescriptor, details, finishEvent) >> clientFinishEvent
        1 * consumer.finished(clientFinishEvent)
        0 * _
    }

    def "discards events when disabled mapper available for details type"() {

        return new DefaultTestStartedProgressEvent(details.getStartTime(), descriptor);
    }

    @Override
    public InternalOperationFinishedProgressEvent createFinishedEvent(DefaultTestDescriptor descriptor, ExecuteTestBuildOperationType.Details details, OperationFinishEvent finishEvent) {
        TestResult testResult = ((ExecuteTestBuildOperationType.Result) finishEvent.getResult()).getResult();