test: add unit tests for pure logic modules

Add 22 test files covering imager, soundtracks, browser-headers, source-keys (figure/pet/effect), effect-source, plus catalog-translations, catalog-layouts, client-translation-files, translations-utils, and various admin/services/helpers modules. Total test count increases by 120+.

src/lib/furni/classname.test.ts

@@ -0,0 +1,78 @@
+import { describe, expect, it } from "vitest";
+import {
+	getBaseClassname,
+	getHabboCdnIconUrl,
+	getIconFileName,
+	getLocalIconUrl,
+	getNitroFileName,
+	getSafeClassnameStem,
+	getSwfFileName,
+	isValidClassname,
+	normalizeClassname,
+} from "./classname";
+
+describe("getBaseClassname", () => {
+	it("strips the * suffix", () => {
+		expect(getBaseClassname("chair_basic*")).toBe("chair_basic");
+	});
+	it("returns the classname unchanged when no * is present", () => {
+		expect(getBaseClassname("chair_basic")).toBe("chair_basic");
+	});
+});
+
+describe("getSafeClassnameStem", () => {
+	it("replaces * with underscore", () => {
+		expect(getSafeClassnameStem("wall_plant*")).toBe("wall_plant_");
+	});
+	it("leaves plain classnames untouched", () => {
+		expect(getSafeClassnameStem("lamp_floor")).toBe("lamp_floor");
+	});
+});
+
+describe("file name helpers", () => {
+	it("builds icon file names from the safe stem", () => {
+		expect(getIconFileName("sofa_blue*")).toBe("sofa_blue__icon.png");
+	});
+	it("builds swf file names from the base classname", () => {
+		expect(getSwfFileName("sofa_blue*")).toBe("sofa_blue.swf");
+	});
+	it("builds nitro file names from the base classname", () => {
+		expect(getNitroFileName("sofa_blue*")).toBe("sofa_blue.nitro");
+	});
+});
+
+describe("normalizeClassname", () => {
+	it("trims and lowercases", () => {
+		expect(normalizeClassname("  Chair_Basic ")).toBe("chair_basic");
+	});
+});
+
+describe("isValidClassname", () => {
+	it("accepts lowercase letters, digits and allowed symbols", () => {
+		expect(isValidClassname("chair_basic")).toBe(true);
+		expect(isValidClassname("sofa*")).toBe(true);
+		expect(isValidClassname("wall.part-1")).toBe(true);
+	});
+	it("rejects uppercase, spaces and invalid characters", () => {
+		expect(isValidClassname("Chair")).toBe(false);
+		expect(isValidClassname("sofa basic")).toBe(false);
+		expect(isValidClassname("sofa/basic")).toBe(false);
+		expect(isValidClassname("")).toBe(false);
+	});
+});
+
+describe("icon URLs", () => {
+	it("builds a local icon URL with encoding", () => {
+		expect(getLocalIconUrl("sofa_blue")).toBe(
+			"/swf/dcr/hof_furni/icons/sofa_blue_icon.png",
+		);
+		expect(getLocalIconUrl("wall*")).toBe(
+			"/swf/dcr/hof_furni/icons/wall__icon.png",
+		);
+	});
+	it("builds a Habbo CDN icon URL with revision and base classname", () => {
+		expect(getHabboCdnIconUrl("sofa_blue*", 567)).toBe(
+			"https://images.habbo.com/dcr/hof_furni/567/sofa_blue_icon.png",
+		);
+	});
+});