alsatian-test/alsatian

import "reflect-metadata";
import { TESTS } from "./_metadata-keys";
import { Unused } from "../unused";
import { markPropertyAsTest } from "./mark-property-as-test";

export function Test(description?: string) {
    return (
        target: object,
        propertyKey: string,
        descriptor?: TypedPropertyDescriptor<any>
    ) => {
        Unused(descriptor);

        // check if this has been registered as a test already
        markPropertyAsTest(propertyKey, target);

        // get tests
        const tests: Array<any> = Reflect.getMetadata(TESTS, target);

        // set the description
        tests.filter(
            test => test.key === propertyKey
        )[0].description = description;

        // update the register
        Reflect.defineMetadata(TESTS, tests, target);
    };
}