替换类的javascript方法进行测试?
it1352
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问题说明
我想测试一个调用其超级方法foo"的方法foo":
I want to test a method 'foo' that calls its super method 'foo':
foo(){
super.foo();
//do some extra stuff
}
如果它会引用来自同一个类的另一个方法，例如
If it would reference another method from the same class, e.g.
foo(){
this.baa();
//do some extra stuff
}
...我可以简单地替换 baa 方法进行测试，例如
... i could simply replace the baa method for testing, e.g
element.baa = () => { console.log('This is a mock of baa')};
element.foo();
expect(effectsOfFoo).toBe(Ok).
但是，如何替换超级方法'foo'?
However, how to replace the super method 'foo'?
也许类似
element.constructor.getSuperClass().foo = () => { console.log('This is a mock of super foo')};
但是，我还没有获得超级课程.
However, I did not manage to get the super class, yet.
相关问题:
正确答案
#1
element.constructor.__proto__.prototype.foo = () => {
console.log('This is a mock of super foo');
};
这篇好文章是转载于：学新通技术网
