Use vitest for some EW unit tests (#33816)

* Use vitest for some EW unit tests

* Ensure library builds are done before unit tests

* Stabilise jest tests

* Move more tests over

* Make sonar happier

* Update types/node for happy-dom compat again

* Decrease max-workers to stabilise jest tests

* Split jest over 3 runners to alleviate memory woes

* Switch jest to runInBand

* Attempt to deflake jest tests

* tweak coverage

* tweak coverage

apps/web/src/utils/UrlUtils.test.ts

@@ -0,0 +1,47 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+// @vitest-environment happy-dom
+
+import { describe, it, expect } from "vitest";
+
+import { abbreviateUrl, parseUrl, unabbreviateUrl } from "./UrlUtils";
+
+describe("abbreviateUrl", () => {
+    it("should return empty string if passed falsey", () => {
+        expect(abbreviateUrl(undefined)).toEqual("");
+    });
+
+    it("should abbreviate to host if empty pathname", () => {
+        expect(abbreviateUrl("https://foo/")).toEqual("foo");
+    });
+
+    it("should not abbreviate if has path parts", () => {
+        expect(abbreviateUrl("https://foo/path/parts")).toEqual("https://foo/path/parts");
+    });
+});
+
+describe("unabbreviateUrl", () => {
+    it("should return empty string if passed falsey", () => {
+        expect(unabbreviateUrl(undefined)).toEqual("");
+    });
+
+    it("should prepend https to input if it lacks it", () => {
+        expect(unabbreviateUrl("element.io")).toEqual("https://element.io");
+    });
+
+    it("should not prepend https to input if it has it", () => {
+        expect(unabbreviateUrl("https://element.io")).toEqual("https://element.io");
+    });
+});
+
+describe("parseUrl", () => {
+    it("should not throw on no proto", () => {
+        expect(() => parseUrl("test")).not.toThrow();
+    });
+});