@Test
public void getQueueExpireAfter_returnsValueSpecifiedInHeader(TestContext testContext) {

    // Mock
    final String headerValue = "123456789";
    final MultiMap headers = createHeaderReturningSimpleValue(HTTP_HEADER_X_QUEUE_EXPIRE_AFTER, headerValue);
    // Trigger work
    final Integer returnedExpireValue = ExpiryCheckHandler.getQueueExpireAfter(headers);
    // Assert
    testContext.assertEquals(headerValue, "" + returnedExpireValue);
}