Assume there is an interface defined as follows:
export interface CMSData {
id: number;
url: string;
htmlTag: string;
importJSComponent: string;
componentData: ComponentAttribute[];
}
There is a method that returns an array of this object type:
public async GetContent(url: string): Promise<CMSData[]>{
const response = await super.get<ICMSContentData[]>(url, {});
try {
if (response?.parsedBody) {
return this.ProcessResponse(response.parsedBody);
} else {
this.handleHTTPError(new Error("Error"));
return [];
}
} catch (e) {
this.handleHTTPError(e);
return [];
}
}
To test the validity and type of the returned data, the following test is written:
import {ContentIOService} from "..";
import {CMSData} from "../IOServices/ContentIOService";
require('es6-promise').polyfill();
require('isomorphic-fetch');
test('Get Content', async () => {
const service = ContentIOService.getInstance();
const data = await service.GetContent("https://1c7207fb14fd3b428c70cc406f0c27d9.m.pipedream.net");
console.log(data)
expect(data).toBeInstanceOf(CMSData[]);
});
However, an error occurs:
'CMSData' only refers to a type, but is being used as a value here.
How can the test be modified to verify that the received data is valid and of the correct type?