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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../assert/mod.ts";import { maxWith } from "./max_with.ts";
function maxWithTest<T>(  input: [T[], (a: T, b: T) => number],  expected: T | undefined,  message?: string,) {  const actual = maxWith(...input);  assertEquals(actual, expected, message);}
Deno.test({  name: "maxWith() handles no mutation",  fn() {    const input = [[1, 3], [6, 1, 3], [4]];    maxWith(input, (a, b) => a.length - b.length);
    assertEquals(input, [[1, 3], [6, 1, 3], [4]]);  },});
Deno.test({  name: "maxWith() handles empty input",  fn() {    maxWithTest<string>([[], (a, b) => a.length - b.length], undefined);  },});
Deno.test({  name: "maxWith() handles array of arrays",  fn() {    maxWithTest([[[1, 3], [6, 1, 3], [4]], (a, b) => a.length - b.length], [      6,      1,      3,    ]);  },});
Deno.test({  name: "maxWith() handles array of strings",  fn() {    maxWithTest(      [["Kim", "Anna", "Arthur"], (a, b) => a.length - b.length],      "Arthur",    );  },});
Deno.test({  name: "maxWith() handles array of objects",  fn() {    maxWithTest(      [        [          { name: "Kim", age: 24 },          { name: "Anna", age: 20 },          { name: "John", age: 43 },        ],        (a, b) => a.age - b.age,      ],      { name: "John", age: 43 },    );  },});
Deno.test({  name: "maxWith() handles duplicates",  fn() {    maxWithTest(      [["John", "Arthur", "Arthur"], (a, b) => a.length - b.length],      "Arthur",    );  },});
Deno.test({  name: "maxWith() handles array containing undefined",  fn() {    maxWithTest(      [        [undefined, undefined, 1],        (a, b) => {          if (a === undefined) {            return 1;          }          if (b === undefined) {            return -1;          }          return 0;        },      ],      undefined,    );  },});