我的一些单元测试涉及将无效(类型不正确的)数据传递给函数。例如:
// user.js
type User = {
id: number,
name: string,
email: string
}
export function validateUser(user: User): Promise<void> {
return new Promise((resolve, reject) => {
// resolve if user is valid, reject if not
})
}
// user.unit.js
import {validateUser} from '../user.js'
describe('validateUser', () => {
it('should reject if user is not valid', () => {
const invalidUser: User = {}
expect(validateUser(invalidUser)).to.be.rejected
})
})
由于invalidUser
变量不符合User
类型,因此出现流错误:
Cannot call validateUser with invalidUser bound to user because:
• property id is missing in object literal [1] but exists in User [2].
• property name is missing in object literal [1] but exists in User [2].
• property email is missing in object literal [1] but exists in User [2].
显然我希望此变量无效,那么如何为该单个实例禁用流类型检查?
答案 0 :(得分:3)
根据.flowconfig [options] docs,有一个选项可以指定suppress comment。 Flow将检测到此注释,并忽略以下代码行。
默认情况下:
如果您的配置中未指定任何抑制注释,则Flow将应用一个默认值:
// $FlowFixMe
。
因此只需添加注释($FlowFixMe
)即可禁止单行的类型检查。
// $FlowFixMe
const invalidUser: User = {}