feat: show call participants in room list (Discord-style)

apps/web/test/unit-tests/components/structures/LeftPanel-test.tsx

@@ -0,0 +1,46 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2023 Mikhail Aheichyk
+Copyright 2023 Nordeck IT + Consulting GmbH.
+
+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.
+*/
+
+import React from "react";
+import { render, type RenderResult, screen } from "jest-matrix-react";
+import { mocked } from "jest-mock";
+
+import LeftPanel from "../../../../src/components/structures/LeftPanel";
+import PageType from "../../../../src/PageTypes";
+import ResizeNotifier from "../../../../src/utils/ResizeNotifier";
+import { shouldShowComponent } from "../../../../src/customisations/helpers/UIComponents";
+import { UIComponent } from "../../../../src/settings/UIFeature";
+
+jest.mock("../../../../src/customisations/helpers/UIComponents", () => ({
+    shouldShowComponent: jest.fn(),
+}));
+
+describe("LeftPanel", () => {
+    function renderComponent(): RenderResult {
+        return render(
+            <LeftPanel isMinimized={false} pageType={PageType.RoomView} resizeNotifier={new ResizeNotifier()} />,
+        );
+    }
+
+    it("does not show filter container when disabled by UIComponent customisations", () => {
+        mocked(shouldShowComponent).mockReturnValue(false);
+        renderComponent();
+        expect(shouldShowComponent).toHaveBeenCalledWith(UIComponent.FilterContainer);
+        expect(screen.queryByRole("button", { name: /search/i })).not.toBeInTheDocument();
+        expect(screen.queryByRole("button", { name: "Explore rooms" })).not.toBeInTheDocument();
+    });
+
+    it("renders filter container when enabled by UIComponent customisations", () => {
+        mocked(shouldShowComponent).mockReturnValue(true);
+        renderComponent();
+        expect(shouldShowComponent).toHaveBeenCalledWith(UIComponent.FilterContainer);
+        expect(screen.getByRole("button", { name: /search/i })).toBeInTheDocument();
+        expect(screen.getByRole("button", { name: "Explore rooms" })).toBeInTheDocument();
+    });
+});