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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../assert/mod.ts";import { sortBy } from "./sort_by.ts";
Deno.test({  name: "sortBy() handles no mutation",  fn() {    const array = ["a", "abc", "ba"];    sortBy(array, (it) => it.length);
    assertEquals(array, ["a", "abc", "ba"]);  },});
Deno.test({  name: "sortBy() calls the selector function once",  fn() {    let callCount = 0;    const array = [0, 1, 2];    sortBy(array, (it) => {      callCount++;      return it;    });
    assertEquals(callCount, array.length);  },});
Deno.test({  name: "sortBy() handles empty input",  fn() {    assertEquals(sortBy([], () => 5), []);  },});
Deno.test({  name: "sortBy() handles identity selector",  fn() {    assertEquals(sortBy([2, 3, 1], (it) => it), [1, 2, 3]);  },});
Deno.test({  name: "sortBy() handles stable sort",  fn() {    assertEquals(      sortBy([        { id: 1, date: "February 1, 2022" },        { id: 2, date: "December 17, 1995" },        { id: 3, date: "June 12, 2012" },        { id: 4, date: "December 17, 1995" },        { id: 5, date: "June 12, 2012" },      ], (it) => new Date(it.date)),      [        { id: 2, date: "December 17, 1995" },        { id: 4, date: "December 17, 1995" },        { id: 3, date: "June 12, 2012" },        { id: 5, date: "June 12, 2012" },        { id: 1, date: "February 1, 2022" },      ],    );
    assertEquals(      sortBy([        { id: 1, str: "c" },        { id: 2, str: "a" },        { id: 3, str: "b" },        { id: 4, str: "a" },        { id: 5, str: "b" },      ], (it) => it.str),      [        { id: 2, str: "a" },        { id: 4, str: "a" },        { id: 3, str: "b" },        { id: 5, str: "b" },        { id: 1, str: "c" },      ],    );  },});
Deno.test({  name: "sortBy() handles special number values",  fn() {    assertEquals(      sortBy([        1,        Number.POSITIVE_INFINITY,        2,        Number.NEGATIVE_INFINITY,        3,        Number.NaN,        4,        Number.NaN,      ], (it) => it),      [        Number.NEGATIVE_INFINITY,        1,        2,        3,        4,        Number.POSITIVE_INFINITY,        Number.NaN,        Number.NaN,      ],    );
    assertEquals(      sortBy([        Number.NaN,        1,        Number.POSITIVE_INFINITY,        Number.NaN,        7,        Number.NEGATIVE_INFINITY,        Number.NaN,        2,        6,        5,        9,      ], (it) => it),      [        Number.NEGATIVE_INFINITY,        1,        2,        5,        6,        7,        9,        Number.POSITIVE_INFINITY,        Number.NaN,        Number.NaN,        Number.NaN,      ],    );
    // Test that NaN sort is stable.    const nanArray = [      { id: 1, nan: Number.NaN },      { id: 2, nan: Number.NaN },      { id: 3, nan: Number.NaN },      { id: 4, nan: Number.NaN },    ];    assertEquals(sortBy(nanArray, ({ nan }) => nan), nanArray);  },});
Deno.test({  name: "sortBy() handles sortings",  fn() {    const testArray = [      { name: "benchmark", stage: 3 },      { name: "test", stage: 2 },      { name: "build", stage: 1 },      { name: "deploy", stage: 4 },    ];
    assertEquals(sortBy(testArray, (it) => it.stage), [      { name: "build", stage: 1 },      { name: "test", stage: 2 },      { name: "benchmark", stage: 3 },      { name: "deploy", stage: 4 },    ]);
    assertEquals(sortBy(testArray, (it) => it.name), [      { name: "benchmark", stage: 3 },      { name: "build", stage: 1 },      { name: "deploy", stage: 4 },      { name: "test", stage: 2 },    ]);
    assertEquals(      sortBy([        "9007199254740999",        "9007199254740991",        "9007199254740995",      ], (it) => BigInt(it)),      [        "9007199254740991",        "9007199254740995",        "9007199254740999",      ],    );
    assertEquals(      sortBy([        "February 1, 2022",        "December 17, 1995",        "June 12, 2012",      ], (it) => new Date(it)),      [        "December 17, 1995",        "June 12, 2012",        "February 1, 2022",      ],    );  },});
Deno.test({  name: "sortBy() handles desc ordering",  fn() {    assertEquals(      sortBy(        [          "January 27, 1995",          "November 26, 2020",          "June 17, 1952",          "July 15, 1993",        ],        (it) => new Date(it),        { order: "desc" },      ),      [        "November 26, 2020",        "January 27, 1995",        "July 15, 1993",        "June 17, 1952",      ],    );  },});