我有一个反应器中的reducer,我正在测试我想在exports默认函数中测试reduce的返回值。而且我不确定如何访问该函数中的reduce。
MyReducer:
exports default function myReducer({
people = [0,1,2];
people.reduce(function(sum, peeps){
return sum + peeps;
}0);
return "hey";
})
在开玩笑测试中:
import myReducer from 'myReducer';
expectedPeeps = 3;
expect(Something needs to go here).toEqual(expectedPeeps);
我需要弄清楚如何获得people.reduce的返回值。我可以通过调用myReducer()来获得“嘿”。但是如何在我的测试中获得people.reduce的返回值! ?提前感谢窥视。
答案 0 :(得分:0)
首先,MyReducer中存在多个语法问题。我认为它应该是这样的:
export default function myReducer() {
const people = [0,1,2];
people.reduce(function(sum, peeps){
return sum + peeps;
}, 0);
return "hey";
}
如果您需要自行测试reduce,可以将其移动到自己的函数中并导出它:
export function reducePeople(people) {
return people.reduce(function(sum, peeps){
return sum + peeps;
}, 0);
}
export default function myReducer() {
people = [0,1,2];
reducePeople(people);
return "hey";
}
在测试中导入并测试它:
import { reducePeople } from 'myReducer';
expectedPeeps = 3;
expect(reducePeople([0,1,2])).toEqual(expectedPeeps);