test: add unit tests for frontend hooks (#527)

Signed-off-by: Guilherme Caponetto <638737+caponetto@users.noreply.github.com>

workspaces/frontend/src/app/hooks/__tests__/useCurrentRouteKey.spec.tsx

@@ -0,0 +1,31 @@
+import React from 'react';
+import { MemoryRouter } from 'react-router-dom';
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { useCurrentRouteKey } from '~/app/hooks/useCurrentRouteKey';
+import { AppRouteKey, AppRoutePaths } from '~/app/routes';
+
+describe('useCurrentRouteKey', () => {
+  const wrapper: React.FC<React.PropsWithChildren<{ initialEntries: string[] }>> = ({
+    children,
+    initialEntries,
+  }) => <MemoryRouter initialEntries={initialEntries}>{children}</MemoryRouter>;
+
+  const fillParams = (pattern: string) => pattern.replace(/:([^/]+)/g, 'test');
+  const cases: ReadonlyArray<readonly [string, AppRouteKey]> = (
+    Object.entries(AppRoutePaths) as [AppRouteKey, string][]
+  ).map(([key, pattern]) => [fillParams(pattern), key]);
+
+  it.each(cases)('matches route keys by path: %s', (path, expected) => {
+    const { result } = renderHook(() => useCurrentRouteKey(), {
+      wrapper: (props) => wrapper({ ...props, initialEntries: [path] }),
+    });
+    expect(result.current).toBe(expected);
+  });
+
+  it('returns undefined for unknown paths', () => {
+    const { result } = renderHook(() => useCurrentRouteKey(), {
+      wrapper: (props) => wrapper({ ...props, initialEntries: ['/unknown'] }),
+    });
+    expect(result.current).toBeUndefined();
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useMount.spec.tsx

@@ -0,0 +1,10 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import useMount from '~/app/hooks/useMount';
+
+describe('useMount', () => {
+  it('invokes callback on mount', () => {
+    const cb = jest.fn();
+    renderHook(() => useMount(cb));
+    expect(cb).toHaveBeenCalledTimes(1);
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useNamespaces.spec.tsx

@@ -0,0 +1,52 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import useNamespaces from '~/app/hooks/useNamespaces';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+import { NotebookApis } from '~/shared/api/notebookApi';
+import { APIState } from '~/shared/api/types';
+
+jest.mock('~/app/hooks/useNotebookAPI', () => ({
+  useNotebookAPI: jest.fn(),
+}));
+
+const mockUseNotebookAPI = useNotebookAPI as jest.MockedFunction<typeof useNotebookAPI>;
+
+describe('useNamespaces', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('rejects when API not available', async () => {
+    const unavailableState: APIState<NotebookApis> = {
+      apiAvailable: false,
+      api: {} as NotebookApis,
+    };
+    mockUseNotebookAPI.mockReturnValue({ ...unavailableState, refreshAllAPI: jest.fn() });
+
+    const { result, waitForNextUpdate } = renderHook(() => useNamespaces());
+    await waitForNextUpdate();
+
+    const [namespacesData, loaded, loadError] = result.current;
+    expect(namespacesData).toBeNull();
+    expect(loaded).toBe(false);
+    expect(loadError).toBeDefined();
+  });
+
+  it('returns data when API is available', async () => {
+    const listNamespaces = jest.fn().mockResolvedValue({ ok: true, data: [{ name: 'ns1' }] });
+    const api = { namespaces: { listNamespaces } } as unknown as NotebookApis;
+
+    const availableState: APIState<NotebookApis> = {
+      apiAvailable: true,
+      api,
+    };
+    mockUseNotebookAPI.mockReturnValue({ ...availableState, refreshAllAPI: jest.fn() });
+
+    const { result, waitForNextUpdate } = renderHook(() => useNamespaces());
+    await waitForNextUpdate();
+
+    const [namespacesData, loaded, loadError] = result.current;
+    expect(namespacesData).toEqual([{ name: 'ns1' }]);
+    expect(loaded).toBe(true);
+    expect(loadError).toBeUndefined();
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useNotebookAPI.spec.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { NotebookContext } from '~/app/context/NotebookContext';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+
+jest.mock('~/app/EnsureAPIAvailability', () => ({
+  default: ({ children }: { children?: React.ReactNode }) => children as React.ReactElement,
+}));
+
+describe('useNotebookAPI', () => {
+  it('returns api state and refresh function from context', () => {
+    const refreshAPIState = jest.fn();
+    const api = {} as ReturnType<typeof useNotebookAPI>['api'];
+    const wrapper: React.FC<React.PropsWithChildren> = ({ children }) => (
+      <NotebookContext.Provider
+        value={{
+          apiState: { apiAvailable: true, api },
+          refreshAPIState,
+        }}
+      >
+        {children}
+      </NotebookContext.Provider>
+    );
+
+    const { result } = renderHook(() => useNotebookAPI(), { wrapper });
+
+    expect(result.current.apiAvailable).toBe(true);
+    expect(result.current.api).toBe(api);
+
+    result.current.refreshAllAPI();
+    expect(refreshAPIState).toHaveBeenCalled();
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaceFormData.spec.tsx

@@ -0,0 +1,78 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import useWorkspaceFormData, { EMPTY_FORM_DATA } from '~/app/hooks/useWorkspaceFormData';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+import { NotebookApis } from '~/shared/api/notebookApi';
+import { buildMockWorkspace, buildMockWorkspaceKind } from '~/shared/mock/mockBuilder';
+
+jest.mock('~/app/hooks/useNotebookAPI', () => ({
+  useNotebookAPI: jest.fn(),
+}));
+
+const mockUseNotebookAPI = useNotebookAPI as jest.MockedFunction<typeof useNotebookAPI>;
+
+describe('useWorkspaceFormData', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('returns empty form data when missing namespace or name', async () => {
+    mockUseNotebookAPI.mockReturnValue({
+      api: {} as NotebookApis,
+      apiAvailable: true,
+      refreshAllAPI: jest.fn(),
+    });
+    const { result, waitForNextUpdate } = renderHook(() =>
+      useWorkspaceFormData({ namespace: undefined, workspaceName: undefined }),
+    );
+    await waitForNextUpdate();
+
+    const workspaceFormData = result.current[0];
+    expect(workspaceFormData).toEqual(EMPTY_FORM_DATA);
+  });
+
+  it('maps workspace and kind into form data when API available', async () => {
+    const mockWorkspace = buildMockWorkspace({});
+    const mockWorkspaceKind = buildMockWorkspaceKind({});
+    const getWorkspace = jest.fn().mockResolvedValue({
+      ok: true,
+      data: mockWorkspace,
+    });
+    const getWorkspaceKind = jest.fn().mockResolvedValue({ ok: true, data: mockWorkspaceKind });
+
+    const api = {
+      workspaces: { getWorkspace },
+      workspaceKinds: { getWorkspaceKind },
+    } as unknown as NotebookApis;
+
+    mockUseNotebookAPI.mockReturnValue({
+      api,
+      apiAvailable: true,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() =>
+      useWorkspaceFormData({ namespace: 'ns', workspaceName: 'ws' }),
+    );
+    await waitForNextUpdate();
+
+    const workspaceFormData = result.current[0];
+    expect(workspaceFormData).toEqual({
+      kind: mockWorkspaceKind,
+      image: {
+        ...mockWorkspace.podTemplate.options.imageConfig.current,
+        hidden: mockWorkspaceKind.hidden,
+      },
+      podConfig: {
+        ...mockWorkspace.podTemplate.options.podConfig.current,
+        hidden: mockWorkspaceKind.hidden,
+      },
+      properties: {
+        workspaceName: mockWorkspace.name,
+        deferUpdates: mockWorkspace.deferUpdates,
+        volumes: mockWorkspace.podTemplate.volumes.data,
+        secrets: mockWorkspace.podTemplate.volumes.secrets,
+        homeDirectory: mockWorkspace.podTemplate.volumes.home?.mountPath,
+      },
+    });
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaceFormLocationData.spec.tsx

@@ -0,0 +1,60 @@
+import React from 'react';
+import { MemoryRouter } from 'react-router-dom';
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { useWorkspaceFormLocationData } from '~/app/hooks/useWorkspaceFormLocationData';
+import { NamespaceContextProvider } from '~/app/context/NamespaceContextProvider';
+
+jest.mock('~/app/context/NamespaceContextProvider', () => {
+  const ReactActual = jest.requireActual('react');
+  const mockNamespaceValue = {
+    namespaces: ['ns1', 'ns2', 'ns3'],
+    selectedNamespace: 'ns1',
+    setSelectedNamespace: jest.fn(),
+    lastUsedNamespace: 'ns1',
+    updateLastUsedNamespace: jest.fn(),
+  };
+  const MockContext = ReactActual.createContext(mockNamespaceValue);
+  return {
+    NamespaceContextProvider: ({ children }: { children: React.ReactNode }) => (
+      <MockContext.Provider value={mockNamespaceValue}>{children}</MockContext.Provider>
+    ),
+    useNamespaceContext: () => ReactActual.useContext(MockContext),
+  };
+});
+
+describe('useWorkspaceFormLocationData', () => {
+  const wrapper: React.FC<
+    React.PropsWithChildren<{ initialEntries: (string | { pathname: string; state?: unknown })[] }>
+  > = ({ children, initialEntries }) => (
+    <MemoryRouter initialEntries={initialEntries}>
+      <NamespaceContextProvider>{children}</NamespaceContextProvider>
+    </MemoryRouter>
+  );
+
+  it('returns edit mode data', () => {
+    const initialEntries = [
+      { pathname: '/workspaces/edit', state: { namespace: 'ns2', workspaceName: 'ws' } },
+    ];
+    const { result } = renderHook(() => useWorkspaceFormLocationData(), {
+      wrapper: (props) => wrapper({ ...props, initialEntries }),
+    });
+    expect(result.current).toEqual({ mode: 'edit', namespace: 'ns2', workspaceName: 'ws' });
+  });
+
+  it('throws when missing workspaceName in edit mode', () => {
+    const initialEntries = [{ pathname: '/workspaces/edit', state: { namespace: 'ns1' } }];
+    expect(() =>
+      renderHook(() => useWorkspaceFormLocationData(), {
+        wrapper: (props) => wrapper({ ...props, initialEntries }),
+      }),
+    ).toThrow();
+  });
+
+  it('returns create mode data using selected namespace when state not provided', () => {
+    const initialEntries = [{ pathname: '/workspaces/create' }];
+    const { result } = renderHook(() => useWorkspaceFormLocationData(), {
+      wrapper: (props) => wrapper({ ...props, initialEntries }),
+    });
+    expect(result.current).toEqual({ mode: 'create', namespace: 'ns1' });
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaceKindByName.spec.tsx

@@ -0,0 +1,69 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+import useWorkspaceKindByName from '~/app/hooks/useWorkspaceKindByName';
+import { NotebookApis } from '~/shared/api/notebookApi';
+import { buildMockWorkspaceKind } from '~/shared/mock/mockBuilder';
+
+jest.mock('~/app/hooks/useNotebookAPI', () => ({
+  useNotebookAPI: jest.fn(),
+}));
+
+const mockUseNotebookAPI = useNotebookAPI as jest.MockedFunction<typeof useNotebookAPI>;
+
+describe('useWorkspaceKindByName', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('rejects when API not available', async () => {
+    mockUseNotebookAPI.mockReturnValue({
+      api: {} as NotebookApis,
+      apiAvailable: false,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() => useWorkspaceKindByName('jupyter'));
+    await waitForNextUpdate();
+
+    const [workspaceKind, loaded, error] = result.current;
+    expect(workspaceKind).toBeNull();
+    expect(loaded).toBe(false);
+    expect(error).toBeDefined();
+  });
+
+  it('returns null when no kind provided', async () => {
+    mockUseNotebookAPI.mockReturnValue({
+      api: {} as NotebookApis,
+      apiAvailable: true,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() => useWorkspaceKindByName(undefined));
+    await waitForNextUpdate();
+
+    const [workspaceKind, loaded, error] = result.current;
+    expect(workspaceKind).toBeNull();
+    expect(loaded).toBe(true);
+    expect(error).toBeUndefined();
+  });
+
+  it('returns kind when API is available', async () => {
+    const mockWorkspaceKind = buildMockWorkspaceKind({});
+    const getWorkspaceKind = jest.fn().mockResolvedValue({ ok: true, data: mockWorkspaceKind });
+    mockUseNotebookAPI.mockReturnValue({
+      api: { workspaceKinds: { getWorkspaceKind } } as unknown as NotebookApis,
+      apiAvailable: true,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() =>
+      useWorkspaceKindByName(mockWorkspaceKind.name),
+    );
+    await waitForNextUpdate();
+
+    const [workspaceKind, loaded, error] = result.current;
+    expect(workspaceKind).toEqual(mockWorkspaceKind);
+    expect(loaded).toBe(true);
+    expect(error).toBeUndefined();
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaceKinds.spec.tsx

@@ -0,0 +1,51 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+import useWorkspaceKinds from '~/app/hooks/useWorkspaceKinds';
+import { NotebookApis } from '~/shared/api/notebookApi';
+import { buildMockWorkspaceKind } from '~/shared/mock/mockBuilder';
+
+jest.mock('~/app/hooks/useNotebookAPI', () => ({
+  useNotebookAPI: jest.fn(),
+}));
+
+const mockUseNotebookAPI = useNotebookAPI as jest.MockedFunction<typeof useNotebookAPI>;
+
+describe('useWorkspaceKinds', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('rejects when API not available', async () => {
+    mockUseNotebookAPI.mockReturnValue({
+      api: {} as NotebookApis,
+      apiAvailable: false,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() => useWorkspaceKinds());
+    await waitForNextUpdate();
+
+    const [workspaceKinds, loaded, error] = result.current;
+    expect(workspaceKinds).toEqual([]);
+    expect(loaded).toBe(false);
+    expect(error).toBeDefined();
+  });
+
+  it('returns kinds when API is available', async () => {
+    const mockWorkspaceKind = buildMockWorkspaceKind({});
+    const listWorkspaceKinds = jest.fn().mockResolvedValue({ ok: true, data: [mockWorkspaceKind] });
+    mockUseNotebookAPI.mockReturnValue({
+      api: { workspaceKinds: { listWorkspaceKinds } } as unknown as NotebookApis,
+      apiAvailable: true,
+      refreshAllAPI: jest.fn(),
+    });
+
+    const { result, waitForNextUpdate } = renderHook(() => useWorkspaceKinds());
+    await waitForNextUpdate();
+
+    const [workspaceKinds, loaded, error] = result.current;
+    expect(workspaceKinds).toEqual([mockWorkspaceKind]);
+    expect(loaded).toBe(true);
+    expect(error).toBeUndefined();
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaceRowActions.spec.tsx

@@ -0,0 +1,92 @@
+import React from 'react';
+import { act } from 'react-dom/test-utils';
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { WorkspaceActionsContext } from '~/app/context/WorkspaceActionsContext';
+import { useWorkspaceRowActions } from '~/app/hooks/useWorkspaceRowActions';
+import { WorkspacesWorkspace } from '~/generated/data-contracts';
+import { buildMockWorkspace } from '~/shared/mock/mockBuilder';
+
+jest.mock('~/app/context/WorkspaceActionsContext', () => {
+  const ReactActual = jest.requireActual('react');
+  const MockContext = ReactActual.createContext(undefined);
+  return {
+    WorkspaceActionsContext: MockContext,
+    useWorkspaceActionsContext: () => ReactActual.useContext(MockContext),
+  };
+});
+
+describe('useWorkspaceRowActions', () => {
+  const workspace = buildMockWorkspace({ name: 'ws', namespace: 'ns' });
+
+  type MinimalAction = { title?: string; isSeparator?: boolean; onClick?: () => void };
+  type RequestActionArgs = { workspace: WorkspacesWorkspace; onActionDone?: () => void };
+  type WorkspaceActionsContextLike = {
+    requestViewDetailsAction: (args: RequestActionArgs) => void;
+    requestEditAction: (args: RequestActionArgs) => void;
+    requestDeleteAction: (args: RequestActionArgs) => void;
+    requestStartAction: (args: RequestActionArgs) => void;
+    requestRestartAction: (args: RequestActionArgs) => void;
+    requestStopAction: (args: RequestActionArgs) => void;
+  };
+
+  const contextValue: WorkspaceActionsContextLike = {
+    requestViewDetailsAction: jest.fn(),
+    requestEditAction: jest.fn(),
+    requestDeleteAction: jest.fn(),
+    requestStartAction: jest.fn(),
+    requestRestartAction: jest.fn(),
+    requestStopAction: jest.fn(),
+  };
+
+  const wrapper: React.FC<React.PropsWithChildren> = ({ children }) => (
+    <WorkspaceActionsContext.Provider value={contextValue}>
+      {children}
+    </WorkspaceActionsContext.Provider>
+  );
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('builds actions respecting visibility and separators', () => {
+    const actionsToInclude = [
+      { id: 'viewDetails' as const },
+      { id: 'separator' as const },
+      { id: 'edit' as const, isVisible: (w: WorkspacesWorkspace) => w.name === 'ws' },
+      { id: 'delete' as const, isVisible: false },
+    ];
+
+    const { result } = renderHook(() => useWorkspaceRowActions(actionsToInclude), { wrapper });
+    const actions = result.current(workspace);
+
+    expect(actions).toHaveLength(3);
+    expect((actions[0] as MinimalAction).title).toBe('View Details');
+    expect((actions[1] as MinimalAction).isSeparator).toBe(true);
+    expect((actions[2] as MinimalAction).title).toBe('Edit');
+  });
+
+  it('triggers context requests on action click', () => {
+    const onActionDone = jest.fn();
+    const { result } = renderHook(
+      () =>
+        useWorkspaceRowActions([
+          { id: 'start' },
+          { id: 'stop' },
+          { id: 'restart' },
+          { id: 'delete', onActionDone },
+        ]),
+      { wrapper },
+    );
+
+    const actions = result.current(workspace);
+    act(() => (actions[0] as MinimalAction).onClick?.());
+    act(() => (actions[1] as MinimalAction).onClick?.());
+    act(() => (actions[2] as MinimalAction).onClick?.());
+    act(() => (actions[3] as MinimalAction).onClick?.());
+
+    expect(contextValue.requestStartAction).toHaveBeenCalledWith({ workspace });
+    expect(contextValue.requestStopAction).toHaveBeenCalledWith({ workspace });
+    expect(contextValue.requestRestartAction).toHaveBeenCalledWith({ workspace });
+    expect(contextValue.requestDeleteAction).toHaveBeenCalledWith({ workspace, onActionDone });
+  });
+});

workspaces/frontend/src/app/hooks/__tests__/useWorkspaces.spec.tsx

@@ -0,0 +1,193 @@
+import { renderHook } from '~/__tests__/unit/testUtils/hooks';
+import { useNotebookAPI } from '~/app/hooks/useNotebookAPI';
+import { useWorkspacesByKind, useWorkspacesByNamespace } from '~/app/hooks/useWorkspaces';
+import { NotebookApis } from '~/shared/api/notebookApi';
+import {
+  buildMockImageConfig,
+  buildMockOptionInfo,
+  buildMockPodConfig,
+  buildMockPodTemplate,
+  buildMockWorkspace,
+  buildMockWorkspaceKindInfo,
+  buildMockWorkspaceList,
+  buildPodTemplateOptions,
+} from '~/shared/mock/mockBuilder';
+
+jest.mock('~/app/hooks/useNotebookAPI', () => ({
+  useNotebookAPI: jest.fn(),
+}));
+
+const mockUseNotebookAPI = useNotebookAPI as jest.MockedFunction<typeof useNotebookAPI>;
+
+describe('useWorkspaces', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('useWorkspacesByNamespace', () => {
+    it('returns error when API unavailable', async () => {
+      mockUseNotebookAPI.mockReturnValue({
+        api: {} as NotebookApis,
+        apiAvailable: false,
+        refreshAllAPI: jest.fn(),
+      });
+      const { result, waitForNextUpdate } = renderHook(() => useWorkspacesByNamespace('ns'));
+      await waitForNextUpdate();
+
+      const [workspaces, loaded, error] = result.current;
+      expect(workspaces).toEqual([]);
+      expect(loaded).toBe(false);
+      expect(error).toBeDefined();
+    });
+
+    it('fetches workspaces by namespace', async () => {
+      const mockWorkspace = buildMockWorkspace({});
+      const mockWorkspaces = buildMockWorkspaceList({
+        count: 10,
+        namespace: 'ns',
+        kind: mockWorkspace.workspaceKind,
+      });
+      const listWorkspacesByNamespace = jest
+        .fn()
+        .mockResolvedValue({ ok: true, data: mockWorkspaces });
+      const api = { workspaces: { listWorkspacesByNamespace } } as unknown as NotebookApis;
+
+      mockUseNotebookAPI.mockReturnValue({
+        api,
+        apiAvailable: true,
+        refreshAllAPI: jest.fn(),
+      });
+
+      const { result, waitForNextUpdate } = renderHook(() => useWorkspacesByNamespace('ns'));
+      await waitForNextUpdate();
+
+      const [workspaces, loaded, error] = result.current;
+      expect(workspaces).toEqual(mockWorkspaces);
+      expect(loaded).toBe(true);
+      expect(error).toBeUndefined();
+    });
+  });
+
+  describe('useWorkspacesByKind', () => {
+    it('returns error when API unavailable', async () => {
+      mockUseNotebookAPI.mockReturnValue({
+        api: {} as NotebookApis,
+        apiAvailable: false,
+        refreshAllAPI: jest.fn(),
+      });
+      const { result, waitForNextUpdate } = renderHook(() =>
+        useWorkspacesByKind({ kind: 'jupyter' }),
+      );
+      await waitForNextUpdate();
+
+      const [workspaces, loaded, error] = result.current;
+      expect(workspaces).toEqual([]);
+      expect(loaded).toBe(false);
+      expect(error).toBeDefined();
+    });
+
+    it('returns default state and error when kind missing', async () => {
+      mockUseNotebookAPI.mockReturnValue({
+        api: {} as NotebookApis,
+        apiAvailable: true,
+        refreshAllAPI: jest.fn(),
+      });
+      const { result, waitForNextUpdate } = renderHook(() => useWorkspacesByKind({ kind: '' }));
+      await waitForNextUpdate();
+
+      const [workspaces, loaded, error] = result.current;
+      expect(workspaces).toEqual([]);
+      expect(loaded).toBe(false);
+      expect(error).toBeDefined();
+    });
+
+    it('filters workspaces by given criteria', async () => {
+      const mockWorkspace1 = buildMockWorkspace({
+        name: 'workspace1',
+        namespace: 'ns1',
+        workspaceKind: buildMockWorkspaceKindInfo({ name: 'kind1' }),
+        podTemplate: buildMockPodTemplate({
+          options: buildPodTemplateOptions({
+            imageConfig: buildMockImageConfig({
+              current: buildMockOptionInfo({ id: 'img1' }),
+            }),
+            podConfig: buildMockPodConfig({
+              current: buildMockOptionInfo({ id: 'pod1' }),
+            }),
+          }),
+        }),
+      });
+      const mockWorkspace2 = buildMockWorkspace({
+        name: 'workspace2',
+        namespace: 'ns2',
+        workspaceKind: buildMockWorkspaceKindInfo({ name: 'kind1' }),
+        podTemplate: buildMockPodTemplate({
+          options: buildPodTemplateOptions({
+            imageConfig: buildMockImageConfig({
+              current: buildMockOptionInfo({ id: 'img2' }),
+            }),
+            podConfig: buildMockPodConfig({
+              current: buildMockOptionInfo({ id: 'pod2' }),
+            }),
+          }),
+        }),
+      });
+      const mockWorkspace3 = buildMockWorkspace({
+        name: 'workspace3',
+        namespace: 'ns1',
+        workspaceKind: buildMockWorkspaceKindInfo({ name: 'kind2' }),
+        podTemplate: buildMockPodTemplate({
+          options: buildPodTemplateOptions({
+            imageConfig: buildMockImageConfig({
+              current: buildMockOptionInfo({ id: 'img1' }),
+            }),
+            podConfig: buildMockPodConfig({
+              current: buildMockOptionInfo({ id: 'pod1' }),
+            }),
+          }),
+        }),
+      });
+      const mockWorkspaces = [mockWorkspace1, mockWorkspace2, mockWorkspace3];
+
+      const listAllWorkspaces = jest.fn().mockResolvedValue({ ok: true, data: mockWorkspaces });
+      const api = { workspaces: { listAllWorkspaces } } as unknown as NotebookApis;
+      mockUseNotebookAPI.mockReturnValue({
+        api,
+        apiAvailable: true,
+        refreshAllAPI: jest.fn(),
+      });
+
+      const { result, waitForNextUpdate, rerender } = renderHook(
+        (props) => useWorkspacesByKind(props),
+        {
+          initialProps: {
+            kind: 'kind1',
+            namespace: 'ns1',
+            imageId: 'img1',
+            podConfigId: 'pod1',
+          },
+        },
+      );
+
+      const [workspaces, loaded, error] = result.current;
+      expect(workspaces).toEqual([]);
+      expect(loaded).toBe(false);
+      expect(error).toBeUndefined();
+
+      await waitForNextUpdate();
+
+      const [workspaces2, loaded2, error2] = result.current;
+      expect(workspaces2).toEqual([mockWorkspace1]);
+      expect(loaded2).toBe(true);
+      expect(error2).toBeUndefined();
+
+      rerender({ kind: 'kind2', namespace: 'ns1', imageId: 'img1', podConfigId: 'pod1' });
+      await waitForNextUpdate();
+
+      const [workspaces3, loaded3, error3] = result.current;
+      expect(workspaces3).toEqual([mockWorkspace3]);
+      expect(loaded3).toBe(true);
+      expect(error3).toBeUndefined();
+    });
+  });
+});

workspaces/frontend/src/app/hooks/useWorkspaceFormData.ts

@@ -6,7 +6,7 @@ import useFetchState, {
   FetchStateCallbackPromise,
 } from '~/shared/utilities/useFetchState';
 
-const EMPTY_FORM_DATA: WorkspaceFormData = {
+export const EMPTY_FORM_DATA: WorkspaceFormData = {
   kind: undefined,
   image: undefined,
   podConfig: undefined,
@@ -51,14 +51,14 @@ const useWorkspaceFormData = (args: {
         displayName: imageConfig.displayName,
         description: imageConfig.description,
         hidden: false,
-        labels: [],
+        labels: imageConfig.labels,
       },
       podConfig: {
         id: podConfig.id,
         displayName: podConfig.displayName,
         description: podConfig.description,
         hidden: false,
-        labels: [],
+        labels: podConfig.labels,
       },
       properties: {
         workspaceName: workspace.name,

workspaces/frontend/src/shared/mock/mockBuilder.ts

@@ -5,6 +5,11 @@ import {
   NamespacesNamespace,
   WorkspacekindsRedirectMessageLevel,
   WorkspacekindsWorkspaceKind,
+  WorkspacesImageConfig,
+  WorkspacesOptionInfo,
+  WorkspacesPodConfig,
+  WorkspacesPodTemplate,
+  WorkspacesPodTemplateOptions,
   WorkspacesWorkspace,
   WorkspacesWorkspaceKindInfo,
   WorkspacesWorkspaceState,
@@ -39,6 +44,102 @@ export const buildMockWorkspaceKindInfo = (
   ...workspaceKindInfo,
 });
 
+export const buildMockOptionInfo = (
+  optionInfo?: Partial<WorkspacesOptionInfo>,
+): WorkspacesOptionInfo => ({
+  id: 'jupyterlab_scipy_190',
+  displayName: 'jupyter-scipy:v1.9.0',
+  description: 'JupyterLab, with SciPy Packages',
+  labels: [
+    {
+      key: 'pythonVersion',
+      value: '3.11',
+    },
+    {
+      key: 'jupyterlabVersion',
+      value: '1.9.0',
+    },
+  ],
+  ...optionInfo,
+});
+
+export const buildMockImageConfig = (
+  imageConfig?: Partial<WorkspacesImageConfig>,
+): WorkspacesImageConfig => ({
+  current: buildMockOptionInfo({}),
+  ...imageConfig,
+});
+
+export const buildMockPodConfig = (
+  podConfig?: Partial<WorkspacesPodConfig>,
+): WorkspacesPodConfig => ({
+  current: {
+    id: 'tiny_cpu',
+    displayName: 'Tiny CPU',
+    description: 'Pod with 0.1 CPU, 128 Mb RAM',
+    labels: [
+      {
+        key: 'cpu',
+        value: '100m',
+      },
+      {
+        key: 'memory',
+        value: '128Mi',
+      },
+      {
+        key: 'gpu',
+        value: '1',
+      },
+    ],
+  },
+  ...podConfig,
+});
+
+export const buildPodTemplateOptions = (
+  podTemplateOptions?: Partial<WorkspacesPodTemplateOptions>,
+): WorkspacesPodTemplateOptions => ({
+  imageConfig: buildMockImageConfig({}),
+  podConfig: buildMockPodConfig({}),
+  ...podTemplateOptions,
+});
+
+export const buildMockPodTemplate = (
+  podTemplate?: Partial<WorkspacesPodTemplate>,
+): WorkspacesPodTemplate => ({
+  podMetadata: {
+    labels: { labelKey1: 'labelValue1', labelKey2: 'labelValue2' },
+    annotations: { annotationKey1: 'annotationValue1', annotationKey2: 'annotationValue2' },
+  },
+  volumes: {
+    home: {
+      pvcName: 'Volume-Home',
+      mountPath: '/home',
+      readOnly: false,
+    },
+    data: [
+      {
+        pvcName: 'Volume-Data1',
+        mountPath: '/data',
+        readOnly: true,
+      },
+      {
+        pvcName: 'Volume-Data2',
+        mountPath: '/data',
+        readOnly: false,
+      },
+    ],
+    secrets: [
+      {
+        defaultMode: 0o644,
+        mountPath: '/secrets',
+        secretName: 'secret-1',
+      },
+    ],
+  },
+  options: buildPodTemplateOptions({}),
+  ...podTemplate,
+});
+
 export const buildMockWorkspace = (
   workspace?: Partial<WorkspacesWorkspace>,
 ): WorkspacesWorkspace => ({
@@ -50,71 +151,7 @@ export const buildMockWorkspace = (
   pausedTime: new Date(2025, 3, 1).getTime(),
   state: WorkspacesWorkspaceState.WorkspaceStateRunning,
   stateMessage: 'Workspace is running',
-  podTemplate: {
-    podMetadata: {
-      labels: { labelKey1: 'labelValue1', labelKey2: 'labelValue2' },
-      annotations: { annotationKey1: 'annotationValue1', annotationKey2: 'annotationValue2' },
-    },
-    volumes: {
-      home: {
-        pvcName: 'Volume-Home',
-        mountPath: '/home',
-        readOnly: false,
-      },
-      data: [
-        {
-          pvcName: 'Volume-Data1',
-          mountPath: '/data',
-          readOnly: true,
-        },
-        {
-          pvcName: 'Volume-Data2',
-          mountPath: '/data',
-          readOnly: false,
-        },
-      ],
-    },
-    options: {
-      imageConfig: {
-        current: {
-          id: 'jupyterlab_scipy_190',
-          displayName: 'jupyter-scipy:v1.9.0',
-          description: 'JupyterLab, with SciPy Packages',
-          labels: [
-            {
-              key: 'pythonVersion',
-              value: '3.11',
-            },
-            {
-              key: 'jupyterlabVersion',
-              value: '1.9.0',
-            },
-          ],
-        },
-      },
-      podConfig: {
-        current: {
-          id: 'tiny_cpu',
-          displayName: 'Tiny CPU',
-          description: 'Pod with 0.1 CPU, 128 Mb RAM',
-          labels: [
-            {
-              key: 'cpu',
-              value: '100m',
-            },
-            {
-              key: 'memory',
-              value: '128Mi',
-            },
-            {
-              key: 'gpu',
-              value: '1',
-            },
-          ],
-        },
-      },
-    },
-  },
+  podTemplate: buildMockPodTemplate({}),
   activity: {
     lastActivity: new Date(2025, 5, 1).getTime(),
     lastUpdate: new Date(2025, 4, 1).getTime(),