如何使用rxjs弹珠测试发出分组事件的可观测对象? [英] How to test observables which emit grouped events with rxjs marbles?

问题描述

根据 rxjs大理石文档同步分组的当前行为如下:

According to rxjs marbles documentation the current behaviour for the sync groupings is the following:

'(ab)-(cd)': on frame 0, emits a and b then on frame 50, emits c and d

从文档中

虽然一开始可能很不直观，但是在所有值同步发出之后，将进行与该组中的ASCII字符数(包括括号)相等的帧数

While it can be unintuitive at first, after all the values have synchronously emitted time will progress a number of frames equal to the number of ASCII characters in the group, including the parentheses

好，但是如何测试这样的可观察物体(使用大理石或其他任何技术):

Ok, but how do I test an observable like this (using marbles or any other technique):

const observable$ = of(1, 2).concat(of(3, 4).delay(20));

有没有解决方法?

有

There is a similar question on Stack Overflow but there is no answer on 'How to actually work around it and test this kind of observable'.

谢谢！

推荐答案

对于我的项目，我迁移到 rx -sanbox ，其中同步分组有效，并且解决了我的问题.

For my project I migrated to rx-sanbox where sync grouping works correct and it solved my problem.

因此，在rx-sandbox中，这是正确的: '(ab)-(cd)': on frame 0, emits a and b then on frame 20, emits c and d

So, in rx-sandbox this is correct: '(ab)-(cd)': on frame 0, emits a and b then on frame 20, emits c and d

这篇关于如何使用rxjs弹珠测试发出分组事件的可观测对象?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！