geninq/src/functions/aggregate.test.ts

A JavaScript version of the Linq library for Generators

import "./aggregate";
import { It } from "../test-utils";

It("aggregates a basic", (g) => g.aggregate((c, n) => c + n), 6);
It(
  "aggregates an accumulator",
  (g) => g.aggregate({}, (c, n) => ({ ...c, [n]: n })),
  { 1: 1, 2: 2, 3: 3 }
);
It(
  "aggregates a selector",
  (g) =>
    g.aggregate(
      {} as any,
      (c, n) => ({ ...c, [n]: n }),
      (p) => ({ ...p, 4: 4 })
    ),
  { 1: 1, 2: 2, 3: 3, 4: 4 }
);