柴js期望属性值为空数组 [英] chai js expect property value empty array

问题描述

我正在尝试使用chai js断言编写单元测试，并且想知道如何期望长度为零的数组作为值.

I'm trying to write a unit test using chai js assertion, and was wondering how to expect arrays with zero length as values.

我的测试函数的期望语句:

My Test function expect statement:

return expect(functionRetuningPromise()).to eventually.have.property("key1", []);

正在运行摩卡游戏机的控制台输出:

Console Output on running mocha:

AssertionError: expected { otherkey: otherVal, key1: [] } to have a property 'key1' of [], but got []

我尝试deep.property，key1:"[]"均未成功

推荐答案

我忽略了属性声明中的一部分更改.因此，对我来说起作用的是:

I ignored there's a section of change in assertion for properties. So, what made it work for me was :

return expect(functionRetuningPromise()).to.eventually.have.property("key1").that.eql([]);

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