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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";import { joinToString } from "./join_to_string.ts";
Deno.test({  name: "[collections/joinToString] no mutation",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    joinToString(arr, (it) => it.name);
    assertEquals(arr, [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ]);  },});
Deno.test({  name: "[collections/joinToString] identity",  fn() {    const arr = ["Kim", "Anna", "Tim"];
    const out = joinToString(arr, (it) => it);
    assertEquals(out, "Kim,Anna,Tim");  },});
Deno.test({  name: "[collections/joinToString] normal mapppers",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name);
    assertEquals(out, "Kim,Anna,Tim");  },});
Deno.test({  name: "[collections/joinToString] separator",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, { separator: " and " });
    assertEquals(out, "Kim and Anna and Tim");  },});
Deno.test({  name: "[collections/joinToString] prefix",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, {      prefix: "winners are: ",    });
    assertEquals(out, "winners are: Kim,Anna,Tim");  },});
Deno.test({  name: "[collections/joinToString] suffix",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, {      suffix: " are winners",    });
    assertEquals(out, "Kim,Anna,Tim are winners");  },});
Deno.test({  name: "[collections/joinToString] limit",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, {      limit: 2,    });
    assertEquals(out, "Kim,Anna,...");  },});
Deno.test({  name: "[collections/joinToString] truncated",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, {      limit: 2,      truncated: "...!",    });
    assertEquals(out, "Kim,Anna,...!");  },});
Deno.test({  name: "[collections/joinToString] all options",  fn() {    const arr = [      { name: "Kim", age: 22 },      { name: "Anna", age: 31 },      { name: "Tim", age: 58 },    ];    const out = joinToString(arr, (it) => it.name, {      suffix: " are winners",      prefix: "result: ",      separator: " and ",      limit: 1,      truncated: "others",    });
    assertEquals(out, "result: Kim and others are winners");  },});