diff --git a/src/components/bookmarks/group.test.jsx b/src/components/bookmarks/group.test.jsx
new file mode 100644
index 000000000..6548a5127
--- /dev/null
+++ b/src/components/bookmarks/group.test.jsx
@@ -0,0 +1,86 @@
+// @vitest-environment jsdom
+
+import { render, screen, waitFor } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock("@headlessui/react", async () => {
+  const React = await import("react");
+  const { Fragment } = React;
+
+  function Transition({ as: As = Fragment, children }) {
+    if (As === Fragment) return <>{children}</>;
+    return <As>{children}</As>;
+  }
+
+  function Disclosure({ defaultOpen = true, children }) {
+    const content = typeof children === "function" ? children({ open: defaultOpen }) : children;
+    return <div>{content}</div>;
+  }
+
+  function DisclosureButton(props) {
+    return <button type="button" {...props} />;
+  }
+
+  const DisclosurePanel = React.forwardRef(function DisclosurePanel(props, ref) {
+    // HeadlessUI uses a boolean `static` prop; avoid forwarding it to the DOM.
+    const { static: isStatic, ...rest } = props; // eslint-disable-line no-unused-vars
+    return <div ref={ref} data-testid="disclosure-panel" {...rest} />;
+  });
+
+  Disclosure.Button = DisclosureButton;
+  Disclosure.Panel = DisclosurePanel;
+
+  return { Disclosure, Transition };
+});
+
+vi.mock("components/bookmarks/list", () => ({
+  default: function BookmarksListMock({ bookmarks }) {
+    return <div data-testid="bookmarks-list">count:{bookmarks?.length ?? 0}</div>;
+  },
+}));
+
+vi.mock("components/errorboundry", () => ({
+  default: function ErrorBoundaryMock({ children }) {
+    return <>{children}</>;
+  },
+}));
+
+vi.mock("components/resolvedicon", () => ({
+  default: function ResolvedIconMock() {
+    return <div data-testid="resolved-icon" />;
+  },
+}));
+
+import BookmarksGroup from "./group";
+
+describe("components/bookmarks/group", () => {
+  it("renders the group header and list", () => {
+    render(
+      <BookmarksGroup
+        bookmarks={{ name: "Bookmarks", bookmarks: [{ name: "A" }] }}
+        layout={{ icon: "mdi:test" }}
+        disableCollapse={false}
+        groupsInitiallyCollapsed={false}
+      />,
+    );
+
+    expect(screen.getByText("Bookmarks")).toBeInTheDocument();
+    expect(screen.getByTestId("resolved-icon")).toBeInTheDocument();
+    expect(screen.getByTestId("bookmarks-list")).toHaveTextContent("count:1");
+  });
+
+  it("sets the panel height to 0 when initially collapsed", async () => {
+    render(
+      <BookmarksGroup
+        bookmarks={{ name: "Bookmarks", bookmarks: [] }}
+        layout={{ initiallyCollapsed: true }}
+        groupsInitiallyCollapsed={false}
+      />,
+    );
+
+    const panel = screen.getByTestId("disclosure-panel");
+    await waitFor(() => {
+      expect(panel.style.height).toBe("0px");
+    });
+  });
+});
diff --git a/src/components/services/dropdown.test.jsx b/src/components/services/dropdown.test.jsx
new file mode 100644
index 000000000..dfd0e3a38
--- /dev/null
+++ b/src/components/services/dropdown.test.jsx
@@ -0,0 +1,56 @@
+// @vitest-environment jsdom
+
+import { fireEvent, render, screen } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+// Stub Menu/Transition to always render children (keeps tests deterministic).
+vi.mock("@headlessui/react", async () => {
+  const React = await import("react");
+  const { Fragment } = React;
+
+  function Transition({ as: As = Fragment, children }) {
+    if (As === Fragment) return <>{children}</>;
+    return <As>{children}</As>;
+  }
+
+  function Menu({ as: As = "div", children, ...props }) {
+    const content = typeof children === "function" ? children({ open: true }) : children;
+    return <As {...props}>{content}</As>;
+  }
+
+  function MenuButton(props) {
+    return <button type="button" {...props} />;
+  }
+  function MenuItems(props) {
+    return <div {...props} />;
+  }
+  function MenuItem({ children }) {
+    return <>{children}</>;
+  }
+
+  Menu.Button = MenuButton;
+  Menu.Items = MenuItems;
+  Menu.Item = MenuItem;
+
+  return { Menu, Transition };
+});
+
+import Dropdown from "./dropdown";
+
+describe("components/services/dropdown", () => {
+  it("renders the selected label and updates value when an option is clicked", () => {
+    const setValue = vi.fn();
+    const options = [
+      { value: "a", label: "Alpha" },
+      { value: "b", label: "Beta" },
+    ];
+
+    render(<Dropdown options={options} value="a" setValue={setValue} />);
+
+    // "Alpha" appears both in the menu button and in the list of options.
+    expect(screen.getAllByRole("button", { name: "Alpha" })[0]).toBeInTheDocument();
+
+    fireEvent.click(screen.getByRole("button", { name: "Beta" }));
+    expect(setValue).toHaveBeenCalledWith("b");
+  });
+});
diff --git a/src/components/services/group.test.jsx b/src/components/services/group.test.jsx
new file mode 100644
index 000000000..1c4a51f04
--- /dev/null
+++ b/src/components/services/group.test.jsx
@@ -0,0 +1,89 @@
+// @vitest-environment jsdom
+
+import { render, screen, waitFor } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock("@headlessui/react", async () => {
+  const React = await import("react");
+  const { Fragment } = React;
+
+  function Transition({ as: As = Fragment, children }) {
+    if (As === Fragment) return <>{children}</>;
+    return <As>{children}</As>;
+  }
+
+  function Disclosure({ defaultOpen = true, children }) {
+    const content = typeof children === "function" ? children({ open: defaultOpen }) : children;
+    return <div>{content}</div>;
+  }
+
+  function DisclosureButton(props) {
+    return <button type="button" {...props} />;
+  }
+
+  const DisclosurePanel = React.forwardRef(function DisclosurePanel(props, ref) {
+    // HeadlessUI uses a boolean `static` prop; avoid forwarding it to the DOM.
+    const { static: isStatic, ...rest } = props; // eslint-disable-line no-unused-vars
+    return <div ref={ref} data-testid="disclosure-panel" {...rest} />;
+  });
+
+  Disclosure.Button = DisclosureButton;
+  Disclosure.Panel = DisclosurePanel;
+
+  return { Disclosure, Transition };
+});
+
+vi.mock("components/resolvedicon", () => ({
+  default: function ResolvedIconMock() {
+    return <div data-testid="resolved-icon" />;
+  },
+}));
+
+vi.mock("components/services/list", () => ({
+  default: function ServicesListMock({ groupName, services }) {
+    return (
+      <div data-testid="services-list-mock">
+        {groupName}:{services?.length ?? 0}
+      </div>
+    );
+  },
+}));
+
+import ServicesGroup from "./group";
+
+describe("components/services/group", () => {
+  it("renders group and subgroup headers", () => {
+    render(
+      <ServicesGroup
+        group={{
+          name: "Main",
+          services: [{ name: "svc" }],
+          groups: [{ name: "Sub", services: [], groups: [] }],
+        }}
+        layout={{ icon: "mdi:test" }}
+        groupsInitiallyCollapsed={false}
+      />,
+    );
+
+    expect(screen.getByText("Main")).toBeInTheDocument();
+    expect(screen.getByTestId("resolved-icon")).toBeInTheDocument();
+    const lists = screen.getAllByTestId("services-list-mock");
+    expect(lists[0]).toHaveTextContent("Main:1");
+    expect(screen.getByText("Sub")).toBeInTheDocument();
+  });
+
+  it("sets the panel height to 0 when initially collapsed", async () => {
+    render(
+      <ServicesGroup
+        group={{ name: "Main", services: [], groups: [] }}
+        layout={{ initiallyCollapsed: true }}
+        groupsInitiallyCollapsed={false}
+      />,
+    );
+
+    const panel = screen.getAllByTestId("disclosure-panel")[0];
+    await waitFor(() => {
+      expect(panel.style.height).toBe("0px");
+    });
+  });
+});
diff --git a/src/components/services/item.test.jsx b/src/components/services/item.test.jsx
new file mode 100644
index 000000000..7689381ef
--- /dev/null
+++ b/src/components/services/item.test.jsx
@@ -0,0 +1,117 @@
+// @vitest-environment jsdom
+
+import { fireEvent, screen } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+import { renderWithProviders } from "test-utils/render-with-providers";
+
+vi.mock("components/resolvedicon", () => ({
+  default: function ResolvedIconMock() {
+    return <div data-testid="resolved-icon" />;
+  },
+}));
+
+vi.mock("widgets/docker/component", () => ({
+  default: function DockerWidgetMock() {
+    return <div data-testid="docker-widget" />;
+  },
+}));
+
+vi.mock("widgets/kubernetes/component", () => ({
+  default: function KubernetesWidgetMock() {
+    return <div data-testid="kubernetes-widget" />;
+  },
+}));
+
+vi.mock("widgets/proxmoxvm/component", () => ({
+  default: function ProxmoxVMWidgetMock() {
+    return <div data-testid="proxmoxvm-widget" />;
+  },
+}));
+
+vi.mock("./ping", () => ({
+  default: function PingMock() {
+    return <div data-testid="ping" />;
+  },
+}));
+vi.mock("./site-monitor", () => ({
+  default: function SiteMonitorMock() {
+    return <div data-testid="site-monitor" />;
+  },
+}));
+vi.mock("./status", () => ({
+  default: function StatusMock() {
+    return <div data-testid="status" />;
+  },
+}));
+vi.mock("./kubernetes-status", () => ({
+  default: function KubernetesStatusMock() {
+    return <div data-testid="kubernetes-status" />;
+  },
+}));
+vi.mock("./proxmox-status", () => ({
+  default: function ProxmoxStatusMock() {
+    return <div data-testid="proxmox-status" />;
+  },
+}));
+vi.mock("./widget", () => ({
+  default: function ServiceWidgetMock({ widget }) {
+    return <div data-testid="service-widget">idx:{widget.index}</div>;
+  },
+}));
+
+import Item from "./item";
+
+describe("components/services/item", () => {
+  it("renders the service title as a link when href is provided", () => {
+    renderWithProviders(
+      <Item
+        groupName="G"
+        useEqualHeights={false}
+        service={{
+          id: "svc1",
+          name: "My Service",
+          description: "Desc",
+          href: "https://example.com",
+          icon: "mdi:test",
+          widgets: [],
+        }}
+      />,
+      { settings: { target: "_self", showStats: false, statusStyle: "basic" } },
+    );
+
+    const links = screen.getAllByRole("link");
+    expect(links.some((l) => l.getAttribute("href") === "https://example.com")).toBe(true);
+    expect(screen.getByText("My Service")).toBeInTheDocument();
+  });
+
+  it("toggles container stats on click when stats are hidden by default", () => {
+    renderWithProviders(
+      <Item
+        groupName="G"
+        useEqualHeights={false}
+        service={{
+          id: "svc1",
+          name: "My Service",
+          description: "Desc",
+          href: "https://example.com",
+          container: "c",
+          server: "s",
+          ping: true,
+          siteMonitor: true,
+          widgets: [{ index: 1 }, { index: 2 }],
+        }}
+      />,
+      { settings: { showStats: false, statusStyle: "basic" } },
+    );
+
+    expect(screen.queryByTestId("docker-widget")).not.toBeInTheDocument();
+    expect(screen.getByTestId("ping")).toBeInTheDocument();
+    expect(screen.getByTestId("site-monitor")).toBeInTheDocument();
+
+    fireEvent.click(screen.getByRole("button", { name: "View container stats" }));
+    expect(screen.getByTestId("docker-widget")).toBeInTheDocument();
+
+    expect(screen.getAllByTestId("service-widget")).toHaveLength(2);
+  });
+});
diff --git a/src/components/services/kubernetes-status.test.jsx b/src/components/services/kubernetes-status.test.jsx
new file mode 100644
index 000000000..41640f1e5
--- /dev/null
+++ b/src/components/services/kubernetes-status.test.jsx
@@ -0,0 +1,46 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+vi.mock("i18next", () => ({
+  t: (key) => key,
+}));
+
+import KubernetesStatus from "./kubernetes-status";
+
+describe("components/services/kubernetes-status", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("includes podSelector in the request when provided", () => {
+    useSWR.mockReturnValue({ data: undefined, error: undefined });
+
+    render(<KubernetesStatus service={{ namespace: "ns", app: "app", podSelector: "x=y" }} />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/kubernetes/status/ns/app?podSelector=x=y");
+  });
+
+  it("renders the health/status label when running", () => {
+    useSWR.mockReturnValue({ data: { status: "running", health: "healthy" }, error: undefined });
+
+    render(<KubernetesStatus service={{ namespace: "ns", app: "app" }} />);
+
+    expect(screen.getByText("healthy")).toBeInTheDocument();
+  });
+
+  it("renders a dot when style is dot", () => {
+    useSWR.mockReturnValue({ data: { status: "running" }, error: undefined });
+
+    const { container } = render(<KubernetesStatus service={{ namespace: "ns", app: "app" }} style="dot" />);
+
+    expect(container.querySelector(".rounded-full")).toBeTruthy();
+  });
+});
diff --git a/src/components/services/list.test.jsx b/src/components/services/list.test.jsx
new file mode 100644
index 000000000..803e821ea
--- /dev/null
+++ b/src/components/services/list.test.jsx
@@ -0,0 +1,35 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock("components/services/item", () => ({
+  default: function ServiceItemMock({ service, groupName, useEqualHeights }) {
+    return (
+      <li data-testid="service-item">
+        {groupName}:{service.name}:{String(useEqualHeights)}
+      </li>
+    );
+  },
+}));
+
+import List from "./list";
+
+describe("components/services/list", () => {
+  it("renders items and passes the computed useEqualHeights value", () => {
+    render(
+      <List
+        groupName="G"
+        services={[{ name: "A" }, { name: "B" }]}
+        layout={{ useEqualHeights: true }}
+        useEqualHeights={false}
+        header
+      />,
+    );
+
+    const items = screen.getAllByTestId("service-item");
+    expect(items).toHaveLength(2);
+    expect(items[0]).toHaveTextContent("G:A:true");
+    expect(items[1]).toHaveTextContent("G:B:true");
+  });
+});
diff --git a/src/components/services/ping.test.jsx b/src/components/services/ping.test.jsx
new file mode 100644
index 000000000..a45324a9f
--- /dev/null
+++ b/src/components/services/ping.test.jsx
@@ -0,0 +1,40 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+import Ping from "./ping";
+
+describe("components/services/ping", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders the ping time when the host is alive", () => {
+    useSWR.mockReturnValue({ data: { alive: true, time: 123 }, error: undefined });
+
+    render(<Ping groupName="g" serviceName="s" />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/ping?groupName=g&serviceName=s", { refreshInterval: 30000 });
+    expect(screen.getByText("123")).toBeInTheDocument();
+    expect(screen.getByText("123").closest(".ping-status")).toHaveAttribute(
+      "title",
+      expect.stringContaining("ping.up"),
+    );
+  });
+
+  it("renders a dot when style is dot", () => {
+    useSWR.mockReturnValue({ data: { alive: true, time: 5 }, error: undefined });
+
+    const { container } = render(<Ping groupName="g" serviceName="s" style="dot" />);
+
+    expect(screen.queryByText("5")).not.toBeInTheDocument();
+    expect(container.querySelector(".rounded-full")).toBeTruthy();
+  });
+});
diff --git a/src/components/services/proxmox-status.test.jsx b/src/components/services/proxmox-status.test.jsx
new file mode 100644
index 000000000..2573f6fd6
--- /dev/null
+++ b/src/components/services/proxmox-status.test.jsx
@@ -0,0 +1,36 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+import ProxmoxStatus from "./proxmox-status";
+
+describe("components/services/proxmox-status", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("requests vm stats and renders running when status is running", () => {
+    useSWR.mockReturnValue({ data: { status: "running" }, error: undefined });
+
+    render(<ProxmoxStatus service={{ proxmoxNode: "n1", proxmoxVMID: "100" }} />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/proxmox/stats/n1/100?type=qemu");
+    expect(screen.getByText("docker.running")).toBeInTheDocument();
+  });
+
+  it("renders paused for paused vms", () => {
+    useSWR.mockReturnValue({ data: { status: "paused" }, error: undefined });
+
+    render(<ProxmoxStatus service={{ proxmoxNode: "n1", proxmoxVMID: "100", proxmoxType: "lxc" }} />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/proxmox/stats/n1/100?type=lxc");
+    expect(screen.getByText("paused")).toBeInTheDocument();
+  });
+});
diff --git a/src/components/services/site-monitor.test.jsx b/src/components/services/site-monitor.test.jsx
new file mode 100644
index 000000000..7949f4c48
--- /dev/null
+++ b/src/components/services/site-monitor.test.jsx
@@ -0,0 +1,43 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+import SiteMonitor from "./site-monitor";
+
+describe("components/services/site-monitor", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders response time when status is up", () => {
+    useSWR.mockReturnValue({ data: { status: 200, latency: 10 }, error: undefined });
+
+    render(<SiteMonitor groupName="g" serviceName="s" />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/siteMonitor?groupName=g&serviceName=s", { refreshInterval: 30000 });
+    expect(screen.getByText("10")).toBeInTheDocument();
+  });
+
+  it("renders down label for failing status in basic style", () => {
+    useSWR.mockReturnValue({ data: { status: 500, latency: 0 }, error: undefined });
+
+    render(<SiteMonitor groupName="g" serviceName="s" style="basic" />);
+
+    expect(screen.getByText("siteMonitor.down")).toBeInTheDocument();
+  });
+
+  it("renders an error label when SWR returns error", () => {
+    useSWR.mockReturnValue({ data: undefined, error: new Error("boom") });
+
+    render(<SiteMonitor groupName="g" serviceName="s" />);
+
+    expect(screen.getByText("siteMonitor.error")).toBeInTheDocument();
+  });
+});
diff --git a/src/components/services/status.test.jsx b/src/components/services/status.test.jsx
new file mode 100644
index 000000000..e16cbbfc0
--- /dev/null
+++ b/src/components/services/status.test.jsx
@@ -0,0 +1,44 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+import Status from "./status";
+
+describe("components/services/status", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("requests docker status and renders unknown by default", () => {
+    useSWR.mockReturnValue({ data: undefined, error: undefined });
+
+    render(<Status service={{ container: "c", server: "s" }} />);
+
+    expect(useSWR).toHaveBeenCalledWith("/api/docker/status/c/s");
+    expect(screen.getByText("docker.unknown")).toBeInTheDocument();
+  });
+
+  it("renders starting health when container is running and starting", () => {
+    useSWR.mockReturnValue({ data: { status: "running", health: "starting" }, error: undefined });
+
+    render(<Status service={{ container: "c", server: "s" }} />);
+
+    expect(screen.getByText("docker.starting")).toBeInTheDocument();
+  });
+
+  it("renders a dot when style is dot", () => {
+    useSWR.mockReturnValue({ data: { status: "running" }, error: undefined });
+
+    const { container } = render(<Status service={{ container: "c", server: "s" }} style="dot" />);
+
+    expect(screen.queryByText("docker.running")).not.toBeInTheDocument();
+    expect(container.querySelector(".rounded-full")).toBeTruthy();
+  });
+});