import { toMatchSnapshot } from "jest-snapshot";

// ensure this is parsed as a module.
export { };

declare global
{
    namespace jest
    {
        interface Matchers<R, T>
        {
            /**
             * 匹配数值快照,可以指定精度,默认为5
             */
            toMatchNumberSnapshot(fractionDigits?: number): R;
        }
    }
}

expect.extend({
    toMatchNumberSnapshot(received: number, fractionDigits: number = 5)
    {
        return toMatchSnapshot.call(
            this,
            received.toFixed(fractionDigits),
        );
    },
});