请帮助了解如何在Groovy测试中获取Reactor上下文值

private Mono<PersonDetail> getMemberDetailsWithName(String studNumber, PersonDetail detail) {
        Set<StudError> errors = new HashSet<>();
        return coreCustomerIndividualNameClient.getStudName(studNumber)
                .map(nameResponse -> {
                    detail.setName(mapper.map(nameResponse));
                    return detail; })
                .onErrorResume(e -> {
                    errors.addAll(e);
                    return Mono.just(detail);
                })
                .handle((studDetail, sink) -> {
                    StudContext studAggCtx = sink.currentContext().get(StudContext.CONTEXT_KEY);
                    studAggCtx.getErrors().addAll(errors);
                    sink.next(studDetail);
                });
    }

我是在嘲弄，

.getStudName(studNumber) return Error.

我需要检查上下文是否添加了错误，如何在StepVerifier.create中验证此错误
通过reactor.util.context以下面的方式创建的上下文

.subscriberContext(Context.of(StudContext.CONTEXT_KEY,
                            new StudContext(headers, timeoutMillis, false)))
                    .collectList().block();