问题描述
我正在对带有角框架的打字稿编写的项目进行单元测试,方法是将缘故与mocha和chai框架一起应用.对象的接口为:
I'm doing unit-testing for a project which is written in typescript with angular framework, by applying karma with mocha and chai frameworks. And there's an interface for the object as:
interface ISolution {
_id: string;
paymentFrequency: PaymentFrequency;
};
而PaymentFrequency类型定义为:
And PaymentFrequency type is defined as:
type PaymentFrequency = 'MONTHLY' | 'ANNUAL' | 'SINGLE';
在控制器中,
open(solution: ISolution) { };
问题是当我尝试将解决方案模拟为:
The problem is when I tried to mock the solution as:
let solution = { _id: 'aa0', paymentFrequency: 'MONTHLY', ....};
let spy = sandbox.stub(controller, 'open').withArgs(solution);
Typescript给我错误,因为类型字符串不可分配给类型PaymentFrequency".让我知道是否有办法处理.
Typescript gave me the error as "type string is not assignable to type paymentFrequency". Let me know if there's a way to handle it.
推荐答案
您可以尝试使用以下每种类型成为接口.因为这将严格执行类型检查.
You can try using following each type becomes a interface. Because instead of any this will strict the type checking.
示例:
interface ISolution {
_id: string;
paymentFrequency: monthly | annual | single
};
interface monthly{
kind:"MONTHLY"
}
interface annual{
kind:"ANNUAL"
}
interface single{
kind:"SINGLE"
}
var fun=(obj:ISolution)=>{
console.log("hererer",obj)
}
var y:monthly={kind : "MONTHLY"}
var x= { _id: 'aa0', paymentFrequency:y}
fun(x)
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