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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../assert/mod.ts";import { aggregateGroups } from "./aggregate_groups.ts";
function aggregateGroupsTest<T, A>(  input: [    Record<string, ReadonlyArray<T>>,    (current: T, key: string, first: boolean, accumulator?: A) => A,  ],  expected: Record<string, A>,  message?: string,) {  const actual = aggregateGroups(...input);  assertEquals(actual, expected, message);}
Deno.test({  name: "aggregateGroups() handles no mutation",  fn() {    const input = {      Woody: [2, 3, 1, 4],      Buzz: [5, 9],    };
    aggregateGroups(input, () => 5);
    assertEquals(input, {      Woody: [2, 3, 1, 4],      Buzz: [5, 9],    });  },});
Deno.test({  name: "aggregateGroups() handles string building using all params",  fn() {    aggregateGroupsTest(      [        {          "Curry": ["spicy", "vegan"],          "Omelette": ["creamy", "vegetarian"],        },        (current, key, first, acc) => {          if (first) {            return `${key} is ${current}`;          }
          return `${acc} and ${current}`;        },      ],      {        "Curry": "Curry is spicy and vegan",        "Omelette": "Omelette is creamy and vegetarian",      },    );  },});
Deno.test({  name: "aggregateGroups() handles sum ignoring non reduce params",  fn() {    aggregateGroupsTest(      [        {          Woody: [1, 2, 3],          Buzz: [5, 6, 7],        },        (current, _key, _first, acc) => current + (acc ?? 0),      ],      {        Woody: 6,        Buzz: 18,      },    );  },});
Deno.test({  name: "aggregateGroups() handles empty input",  fn() {    aggregateGroupsTest([      {},      () => 1,    ], {});  },});