std/text/word_similarity_sort_test.ts

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "@std/assert";
import { wordSimilaritySort } from "./word_similarity_sort.ts";

Deno.test("wordSimilaritySort() handles basic example", () => {
  const possibleWords = ["length", "size", "blah", "help"];
  const givenWord = "hep";
  assertEquals(
    wordSimilaritySort(givenWord, possibleWords),
    ["help", "size", "blah", "length"],
  );
});

Deno.test("wordSimilaritySort() with case-sensitive sorting", () => {
  const possibleWords = ["length", "Size", "blah", "HELP"];
  const givenWord = "hep";
  assertEquals(
    wordSimilaritySort(givenWord, possibleWords, { caseSensitive: true }),
    ["Size", "blah", "HELP", "length"],
  );
});

Deno.test("wordSimilaritySort() handles empty string", () => {
  const possibleWords = ["length", "size", "blah", "help", ""];
  const givenWord = "";

  assertEquals(
    wordSimilaritySort(givenWord, possibleWords),
    ["", "size", "blah", "help", "length"],
  );
});

Deno.test("wordSimilaritySort() handles empty array", function () {
  const possibleWords: string[] = [];
  const givenWord = "";

  assertEquals(
    wordSimilaritySort(givenWord, possibleWords),
    [],
  );
});