mod.test.ts

import { assertEquals } from "../../test_deps.ts";
import { titleCase } from "./mod.ts";

/**
 * Based on https://github.com/gouch/to-title-case/blob/master/test/tests.json.
 */
const TEST_CASES: [string, string][] = [
  ["", ""],
  ["2019", "2019"],
  ["test", "Test"],
  ["two words", "Two Words"],
  ["one. two.", "One. Two."],
  ["a small word starts", "A Small Word Starts"],
  ["small word ends on", "Small Word Ends On"],
  ["we keep NASA capitalized", "We Keep NASA Capitalized"],
  ["pass camelCase through", "Pass camelCase Through"],
  ["follow step-by-step instructions", "Follow Step-by-Step Instructions"],
  ["your hair[cut] looks (nice)", "Your Hair[cut] Looks (Nice)"],
  ["leave Q&A unscathed", "Leave Q&A Unscathed"],
  [
    "piña colada while you listen to ænima",
    "Piña Colada While You Listen to Ænima",
  ],
  ["start title – end title", "Start Title – End Title"],
  ["start title–end title", "Start Title–End Title"],
  ["start title — end title", "Start Title — End Title"],
  ["start title—end title", "Start Title—End Title"],
  ["start title - end title", "Start Title - End Title"],
  ["don't break", "Don't Break"],
  ['"double quotes"', '"Double Quotes"'],
  ['double quotes "inner" word', 'Double Quotes "Inner" Word'],
  ["fancy double quotes “inner” word", "Fancy Double Quotes “Inner” Word"],
  ["have you read “The Lottery”?", "Have You Read “The Lottery”?"],
  ["one: two", "One: Two"],
  ["one two: three four", "One Two: Three Four"],
  ['one two: "Three Four"', 'One Two: "Three Four"'],
  ["email email@example.com address", "Email email@example.com Address"],
  [
    "you have an https://example.com/ title",
    "You Have an https://example.com/ Title",
  ],
  ["_underscores around words_", "_Underscores Around Words_"],
  ["*asterisks around words*", "*Asterisks Around Words*"],
  ["this vs. that", "This vs. That"],
  ["this vs that", "This vs That"],
  ["this v. that", "This v. That"],
  ["this v that", "This v That"],
  [
    "Scott Moritz and TheStreet.com’s million iPhone la-la land",
    "Scott Moritz and TheStreet.com’s Million iPhone La-La Land",
  ],
  [
    "Notes and observations regarding Apple’s announcements from ‘The Beat Goes On’ special event",
    "Notes and Observations Regarding Apple’s Announcements From ‘The Beat Goes On’ Special Event",
  ],
  [
    "the quick brown fox jumps over the lazy dog",
    "The Quick Brown Fox Jumps over the Lazy Dog",
  ],
  ["newcastle upon tyne", "Newcastle upon Tyne"],
  ["newcastle *upon* tyne", "Newcastle *upon* Tyne"],
];

for (const [input, result] of TEST_CASES) {
  Deno.test({
    name: `case | title_case | ${Deno.inspect(input)} -> ${
      Deno.inspect(
        result,
      )
    }`,
    fn: () => {
      assertEquals(titleCase(input), result);
    },
  });
}