@clutchd/get-initials/src/getInitials.test.ts

A small utility intended to get initials that represent the provided names.

import { expect, test } from "bun:test";
import { getInitials } from ".";

test("handles invalid inputs", async () => {
  expect(
    // @ts-ignore
    getInitials(9, "timothy", null, true, "booking", "   s   ", "", "cook", {
      data: "wow, look at all this data",
      lol: true,
    }),
  ).toEqual("TC");
});

test("handles null", async () => {
  // @ts-ignore
  expect(getInitials(null)).toEqual("U");
});

test("handles multiple null and lowercase string", async () => {
  //@ts-ignore
  expect(getInitials(null, "tim", null)).toEqual("T");
});

test("handles undefined", async () => {
  // @ts-ignore
  expect(getInitials(undefined)).toEqual("U");
});

test("handles multiple undefined and lowercase string", async () => {
  //@ts-ignore
  expect(getInitials(undefined, "tim", undefined)).toEqual("T");
});

test("handles empty string", async () => {
  expect(getInitials("", "")).toEqual("U");
});

test("handles lowercase string", async () => {
  expect(getInitials("tim")).toEqual("T");
});

test("handles lowercase string and empty string", async () => {
  expect(getInitials("tim", "")).toEqual("T");
});

test("handles multiple empty strings and lowercase string", async () => {
  expect(getInitials("", "tim", "", "cooking", "")).toEqual("TC");
});

test("handles lowercase string and whitespace", async () => {
  expect(getInitials("tim", " ")).toEqual("T");
});

test("handles string", async () => {
  expect(getInitials("Tim")).toEqual("T");
});

test("handles 2 names in 1 string", async () => {
  expect(getInitials("Tim Cook")).toEqual("TC");
});

test("handles 2 strings", async () => {
  expect(getInitials("Tim", "Cook")).toEqual("TC");
});

test("handles multiple valid strings and empty string", async () => {
  expect(getInitials("Tim", "", "Cook")).toEqual("TC");
});

test("handles multiple valid strings and whitespace string", async () => {
  expect(getInitials("Tim", " ", "Cook")).toEqual("TC");
});

test("handles multiple names in 1 string", async () => {
  expect(getInitials("Tim Apple Cook")).toEqual("TC");
});

test("handles multiple names in 1 string and multiple strings", async () => {
  expect(getInitials("Tim Apple ", "Cook")).toEqual("TC");
});

test("handles 4 names in 1 string", async () => {
  expect(getInitials("Tim Johnny Appleseed Cook")).toEqual("TC");
});

test("handles multiple strings with multiple names", async () => {
  expect(getInitials("Tim Boss-man", "Johnny Appleseed", "Cook")).toEqual("TC");
});