public RecurringJobBuilder withLabels(String... labels) {
        return withLabels(asSet(labels));
    }
@Test
    void testWithLabels() {
        RecurringJob recurringJob = aRecurringJob()
                .withLabels(Set.of("TestLabel", "Email"))
                .withCron(every5Seconds)
                .withDetails(() -> testService.doWork())
                .build(jobDetailsGenerator);

        assertThat(recurringJob)
                .hasLabels(Set.of("TestLabel", "Email"))
                .hasId()
                .hasScheduleExpression(every5Seconds);
    }