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import { describe, expect, it } from "vitest";
import {
extractUrl,
generateRandomName,
getInitials,
isEmptyString,
isUrl,
processUsername,
} from "../string";
describe("getInitials", () => {
it("returns the initials of a name", () => {
expect(getInitials("John Doe")).toBe("JD");
expect(getInitials("Mary Jane Watson")).toBe("MW");
});
});
describe("isUrl", () => {
it("checks if a string is a URL", () => {
expect(isUrl("https://example.com")).toBe(true);
expect(isUrl("not a url")).toBe(false);
});
});
describe("isEmptyString", () => {
it("checks if a string is empty or only contains whitespace", () => {
expect(isEmptyString("")).toBe(true);
expect(isEmptyString(" ")).toBe(true);
expect(isEmptyString("<p></p>")).toBe(true);
expect(isEmptyString("not empty")).toBe(false);
});
});
describe("extractUrl", () => {
it("extracts a URL from a string", () => {
expect(extractUrl("Visit https://example.com today!")).toBe("https://example.com");
expect(extractUrl("No URL here.")).toBeNull();
});
});
describe("generateRandomName", () => {
it("generates a random name", () => {
const name = generateRandomName();
expect(name).toMatch(/^(?:[A-Z][a-z]+ ){2}[A-Z][a-z]+$/);
});
});
describe("processUsername", () => {
it("processes a username by removing non-alphanumeric characters", () => {
expect(processUsername("User@Name!")).toBe("username");
expect(processUsername("")).toBe("");
expect(processUsername(null)).toBe("");
});
});
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