仅对一个参数存根函数

Question

所以基本上我有一个函数，仅当参数等于某个值时我才想对其行为进行存根。例子

var sinon = require('sinon');

var foo = {
    bar: function(arg1){
        return true;
    }
};

var barStub = sinon.stub(foo, "bar");
barStub.withArgs("test").returns("Hi");

// Expectations
console.log(foo.bar("test")); //works great as it logs "Hi"

// my expectation is to call the original function in all cases except 
// when the arg is "test"
console.log(foo.bar("woo")); //doesnt work as it logs undefined

我正在使用这个包https://www.npmjs.com/package/sinon

Answer 1

我有同样的问题。接受的答案已过时。

stub.callThrough();将实现这一目标。

barStub.callThrough()稍后打电话barStub.withArgs("test").returns("Hi")

https://sinonjs.org/releases/v7.5.0/stubs/