nested_json_to_csv/tests/csv.test.ts

import { IFactory } from "../interfaces/IFactory";
import { IParser } from "../interfaces/IParser";
import { Csv } from "../models/Csv";
import { ParserFactory } from "../providers/factories/ParserFactory";
import { CsvParserService } from "../providers/services/CsvParserService";
describe("Csv test", () => {
  test("simple single csv to json", () => {
    const headers = ["id", "name"];
    const body = "31245324,fox,";
    const csv: Csv = new Csv(headers, body);
    let parserFactory: IFactory = new ParserFactory();
    const parser: IParser = parserFactory.make("csvParser", csv);
    expect(parser).toBeInstanceOf(CsvParserService);
    const json = parser.parse();

    const eJson = {
      name: "fox",
      id: "31245324",
    };
    expect(json).toEqual(eJson);
  });
  test("simple multiple csv to json", () => {
    const headers = ["id", "name"];
    const body = "31245323,fox,\n31245324,fox\n";
    const csv: Csv = new Csv(headers, body);
    let parserFactory: IFactory = new ParserFactory();
    const parser: IParser = parserFactory.make("csvParser", csv);
    expect(parser).toBeInstanceOf(CsvParserService);
    const json = parser.parse();

    const eJson = {
      "31245323": { name: "fox", id: "31245323" },
      "31245324": { name: "fox", id: "31245324" },
    };
    expect(json).toEqual(eJson);
  });
  test("nested multiple csv to json", () => {
    const headers = ["id", "uid", "name", "address.city"];
    const body = "user,31245323,fox,nowhere,\nchild,31245324,fox,where,\n";
    const csv: Csv = new Csv(headers, body);
    let parserFactory: IFactory = new ParserFactory();
    const parser: IParser = parserFactory.make("csvParser", csv);
    expect(parser).toBeInstanceOf(CsvParserService);
    const json = parser.parse();

    const eJson = {
      user: {
        id: "user",
        name: "fox",
        uid: "31245323",
        address: { city: "nowhere" },
      },
      child: {
        id: "child",
        name: "fox",
        uid: "31245324",
        address: { city: "where" },
      },
    };
    expect(json).toEqual(eJson);
  });
});