test(frontend): harness expansion + utility coverage push (F0 + F6) (#539)

* test(frontend): expand harness for store/component/contract tests

- factories: makeSubsonicSong, makeServer, makeAuthState, makeQueueState
- storeReset.ts: per-test reset for player/auth/preview/orbit stores
- mocks/subsonic.ts: realistic fixtures + stream/cover URL helpers
- mocks/browser.ts: ResizeObserver/IntersectionObserver/matchMedia/clipboard/object URLs
- mocks/tauri.ts: tauriMockListenerCount for listener-lifecycle regression tests
- renderWithProviders: pin i18n language to 'en' by default; { language } opt-out
- vitest.config: pool 'forks' + isolate to avoid module-mock + Zustand-global flake
- README: documented patterns, store-reset policy, i18n rule, isolation rationale

* test(frontend): bump utility coverage + expand hot-path gate

serverMagicString: 71→100% (encode/decode rejection branches, clipboard
fallback paths). shareLink: 69→97% (all entity kinds, queue trim, orbit
decoder, findServerIdForShareUrl). dynamicColors: 44→100% (extractCoverColors
DOM paths via Image / canvas / fetch mocks).

Gate adds shareLink.ts and dynamicColors.ts — both stable above 95%.
Comments updated for the new floor and the M4 hard-gate handoff.
This commit is contained in:
Frank Stellmacher
2026-05-11 21:11:23 +02:00
committed by GitHub
parent a228ce1c91
commit 4f9ad07d65
13 changed files with 990 additions and 35 deletions
+100 -23
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@@ -1,20 +1,29 @@
# Frontend test framework
Vitest + jsdom + @testing-library/react. Existing util tests in
`src/utils/*.test.ts` keep working; this folder adds the harness for store,
`src/utils/*.test.ts` keep working; this folder hosts the harness for store,
hook, component and (eventually) integration tests.
## Layout
```
src/test/
setup.ts # global setup: jest-dom, @testing-library cleanup,
# vi.mock for @tauri-apps/api/*
setup.ts # global: jest-dom, cleanup, vi.mock for tauri/*,
# localStorage polyfill, browser-mock install
mocks/
tauri.ts # programmable invoke() + listen() helpers
tauri.ts # programmable invoke() + listen() helpers,
# tauriMockListenerCount(event) for lifecycle tests
subsonic.ts # realistic Subsonic fixture data
browser.ts # ResizeObserver / IntersectionObserver /
# matchMedia / clipboard / object URL mocks
helpers/
factories.ts # makeTrack / makeTracks fixtures
factories.ts # makeTrack / makeTracks / makeSubsonicSong /
# makeServer / makeAuthState / makeQueueState
storeReset.ts # resetPlayerStore / resetAuthStore /
# resetPreviewStore / resetOrbitStore /
# resetAllStores
renderWithProviders.tsx # render() wrapped with MemoryRouter + i18n
# (en-pinned by default)
README.md # this file
```
@@ -37,11 +46,11 @@ npm run test:coverage # with v8 coverage → ./coverage/
## Mocking Tauri
`@tauri-apps/api/core` and `@tauri-apps/api/event` are mocked globally in
`setup.ts`. To configure per-test behaviour, import the helpers in
`setup.ts`. Configure per-test behaviour via the helpers in
`mocks/tauri.ts`:
```ts
import { onInvoke, emitTauriEvent, invokeMock } from '@/test/mocks/tauri';
import { onInvoke, emitTauriEvent, invokeMock, tauriMockListenerCount } from '@/test/mocks/tauri';
beforeEach(() => {
onInvoke('audio_play', () => undefined);
@@ -51,27 +60,76 @@ it('responds to engine events', () => {
emitTauriEvent('audio:progress', { id: 't1', currentTime: 42 });
expect(invokeMock).toHaveBeenCalledWith('audio_play', { id: 't1' });
});
it('does not double-register listeners on re-init', () => {
// ... call init logic twice, assert listener count is 1
expect(tauriMockListenerCount('audio:progress')).toBe(1);
});
```
Unhandled `invoke()` calls throw a descriptive error — tests are honest about
which commands they exercise. Handlers are auto-cleared between tests.
which commands they exercise. Handlers + listeners are auto-cleared between
tests.
## Mocking HTTP
## Mocking Subsonic / HTTP
For Subsonic / Navidrome / Last.fm calls, prefer **module-level mocks** for
unit tests:
Hoist the mock in the test file (vitest limitation — factory functions can't
import helper modules at hoist time), then inject realistic fixture data
from `mocks/subsonic.ts`:
```ts
vi.mock('@/api/subsonic', () => ({
getAlbum: vi.fn(async () => ({ id: 'a1', tracks: [] })),
buildStreamUrl: (id: string) => `https://mock/stream/${id}`,
}));
import { vi, describe, it, beforeEach, expect } from 'vitest';
vi.mock('@/api/subsonic');
import { getAlbum, buildStreamUrl } from '@/api/subsonic';
import { sampleAlbumWithSongs, mockStreamUrl } from '@/test/mocks/subsonic';
beforeEach(() => {
vi.mocked(getAlbum).mockResolvedValue(sampleAlbumWithSongs);
vi.mocked(buildStreamUrl).mockImplementation(mockStreamUrl);
});
```
For broader integration tests that touch many endpoints we can introduce
For broader integration tests that touch many endpoints we may introduce
**MSW** later. The framework is intentionally MSW-free right now to keep
the dep surface small until we need it.
## Resetting stores
Zustand stores are module-level singletons and leak state across tests
unless explicitly reset. setup.ts already clears localStorage between
tests, but the in-memory `getState()` snapshot survives.
Use `helpers/storeReset.ts`:
```ts
import { resetPlayerStore, resetAllStores } from '@/test/helpers/storeReset';
describe('myFeature', () => {
beforeEach(resetPlayerStore);
// or, for cross-store tests:
beforeEach(resetAllStores);
});
```
Each reset replaces the live state with the snapshot captured at module
import time. Action references are preserved (they're closed over the
original `set`/`get`, stable across `setState`).
## i18n language is pinned to `en`
`renderWithProviders` calls `i18n.changeLanguage('en')` synchronously before
render, so `getByText('Settings')` finds the English label regardless of
the developer's local language preference. Tests that want to assert
against another translation pass `{ language: 'de' }`:
```ts
renderWithProviders(<MyComponent />, { language: 'de' });
```
Rationale: option 5a from the pre-refactor testing plan (2026-05-11). Without
a fixed test language, every translation edit risks flipping a green test
red on a contributor's machine.
## Patterns
### Pure utilities
@@ -82,8 +140,7 @@ needed beyond `import { describe, it, expect } from 'vitest'`.
### Zustand stores
- Import the hook, drive it via `useFooStore.getState()`.
- Reset state in a `beforeEach` — Zustand stores are module-level singletons
and leak across tests otherwise.
- Reset state in a `beforeEach` via `storeReset.ts`.
- Stub Tauri side effects via `onInvoke()`.
- Use `emitTauriEvent()` to drive event-driven state transitions.
@@ -92,8 +149,10 @@ See `src/store/previewStore.test.ts` for the reference pattern.
### Components
- `renderWithProviders(<MyComponent />)` from `helpers/renderWithProviders`.
- Query by role / label / text first; fall back to `data-testid` only when
the DOM provides no semantic anchor.
- Prefer `getByRole({ name: ... })` over `getByText` when a semantic role
exists — the role survives translation tweaks and refactors that move
labels into different elements.
- Fall back to `data-testid` only when the DOM provides no semantic anchor.
- Use `userEvent` (not `fireEvent`) for click / type / keyboard, with the
exception of `keydown` on `window` for global shortcut paths.
@@ -114,12 +173,30 @@ wrappers when the hook reads from a provider.
- **react-i18next.** `I18nextProvider` with the real `i18n.ts` instance is
cheap and avoids tests that lie about labels.
## What to NOT snapshot
- Large rendered trees from `renderWithProviders`. Translation edits, CSS
class renames, or unrelated child-component refactors flip the snapshot
for reasons unrelated to the unit under test. Assert on specific
observable behaviour instead — a button is enabled, an aria-label is
present, a class is set.
- Zustand state snapshots that include action functions. Function identity
changes break the snapshot without any behavioural reason.
## Coverage gates
- `vitest run --coverage` writes `coverage/coverage-summary.json` which the
hot-path gate consumes.
- `.github/frontend-hot-path-files.txt` lists the files held to ≥70% line
coverage by `scripts/check-frontend-hot-path-coverage.sh`.
- CI runs both. The gate is currently soft (`continue-on-error: true`) —
flip to a hard PR-blocker once a few PRs run cleanly. Mirrors the backend
rust-tests rollout.
- CI runs both. The gate is soft today (`continue-on-error: true`) —
it flips to a hard PR-blocker at the start of M4 in the pre-refactor
testing plan. Mirrors the backend rust-tests rollout.
## Process isolation
`vitest.config.ts` pins `pool: 'forks'` + `isolate: true`. Each test file
runs in its own forked process with a fresh module graph. ~20% slower
locally than the default thread pool but avoids the fake-timer +
module-mock + Zustand-global flake class that surfaces around suite-size
30+.
+54
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@@ -6,8 +6,12 @@
* than on assembling boilerplate.
*/
import type { Track } from '@/store/playerStore';
import type { ServerProfile } from '@/store/authStore';
import type { SubsonicSong } from '@/api/subsonic';
let trackCounter = 0;
let songCounter = 0;
let serverCounter = 0;
export function makeTrack(overrides: Partial<Track> = {}): Track {
trackCounter += 1;
@@ -28,6 +32,56 @@ export function makeTracks(n: number, overridesFn?: (i: number) => Partial<Track
return Array.from({ length: n }, (_, i) => makeTrack(overridesFn?.(i) ?? {}));
}
export function makeSubsonicSong(overrides: Partial<SubsonicSong> = {}): SubsonicSong {
songCounter += 1;
const id = overrides.id ?? `song-${songCounter}`;
return {
id,
title: `Song ${songCounter}`,
artist: 'Test Artist',
album: 'Test Album',
albumId: `album-${songCounter}`,
duration: 180,
coverArt: id,
bitRate: 320,
suffix: 'flac',
contentType: 'audio/flac',
size: 8_000_000,
...overrides,
};
}
export function makeServer(overrides: Partial<ServerProfile> = {}): ServerProfile {
serverCounter += 1;
return {
id: `server-${serverCounter}`,
name: `Test Server ${serverCounter}`,
url: `https://server-${serverCounter}.test`,
username: 'tester',
password: 'pw',
...overrides,
};
}
/** Minimal `useAuthStore.setState(...)` partial — extend per test. */
export function makeAuthState(opts: { servers?: ServerProfile[]; activeServerId?: string | null } = {}) {
const servers = opts.servers ?? [makeServer()];
return {
servers,
activeServerId: opts.activeServerId === undefined ? servers[0]?.id ?? null : opts.activeServerId,
};
}
/** Minimal `usePlayerStore.setState(...)` partial for queue characterization tests. */
export function makeQueueState(opts: { queue?: Track[]; currentIndex?: number; currentTrack?: Track | null } = {}) {
const queue = opts.queue ?? makeTracks(3);
const currentIndex = opts.currentIndex ?? 0;
const currentTrack = opts.currentTrack === undefined ? (queue[currentIndex] ?? null) : opts.currentTrack;
return { queue, currentIndex, currentTrack };
}
export function resetFactoryCounters(): void {
trackCounter = 0;
songCounter = 0;
serverCounter = 0;
}
+15 -3
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@@ -5,6 +5,12 @@
*
* Tests that don't need a specific route can call `renderWithProviders(<X />)`.
* Tests that need a specific URL pass `{ route: '/album/42' }`.
*
* **i18n language is pinned to `en` by default.** This keeps `getByText` /
* `getByRole({ name })` selectors stable regardless of the developer's local
* language preference. A test that wants to assert against a non-English
* translation can pass `{ language: 'de' }`. See `src/test/README.md` for
* the rationale (rule 5a from the pre-refactor testing plan, 2026-05-11).
*/
import type { ReactElement, ReactNode } from 'react';
import { render, type RenderOptions, type RenderResult } from '@testing-library/react';
@@ -14,9 +20,15 @@ import i18n from '@/i18n';
interface WrapperOptions {
route?: string;
language?: string;
}
function makeWrapper({ route = '/' }: WrapperOptions) {
function makeWrapper({ route = '/', language = 'en' }: WrapperOptions) {
if (i18n.language !== language) {
// Translations are bundled inline in `src/i18n.ts`, so changeLanguage
// resolves synchronously — safe to ignore the returned promise.
void i18n.changeLanguage(language);
}
return function Wrapper({ children }: { children: ReactNode }) {
return (
<I18nextProvider i18n={i18n}>
@@ -30,6 +42,6 @@ export function renderWithProviders(
ui: ReactElement,
options: WrapperOptions & Omit<RenderOptions, 'wrapper'> = {},
): RenderResult {
const { route, ...rest } = options;
return render(ui, { wrapper: makeWrapper({ route }), ...rest });
const { route, language, ...rest } = options;
return render(ui, { wrapper: makeWrapper({ route, language }), ...rest });
}
+54
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@@ -0,0 +1,54 @@
/**
* Per-test Zustand store reset helpers.
*
* Zustand stores are module-level singletons and leak state across tests
* unless explicitly reset. setup.ts already clears localStorage between
* tests, but the in-memory `getState()` snapshot survives — a mutation in
* test A is visible to test B unless we reset.
*
* Strategy: capture each store's initial state at module-import time (when
* persist hydration runs against the empty MemoryStorage polyfill in
* setup.ts, so we get the static defaults). Each reset replaces the live
* state with that captured snapshot, preserving the original action
* references (functions are stable across `setState` since they're closed
* over `set`/`get` from the original factory call).
*
* Usage in a test file:
*
* import { resetPlayerStore, resetAllStores } from '@/test/helpers/storeReset';
* beforeEach(resetPlayerStore);
* // or for cross-store tests:
* beforeEach(resetAllStores);
*/
import { usePlayerStore } from '@/store/playerStore';
import { useAuthStore } from '@/store/authStore';
import { usePreviewStore } from '@/store/previewStore';
import { useOrbitStore } from '@/store/orbitStore';
const INITIAL_PLAYER_STATE = usePlayerStore.getState();
const INITIAL_AUTH_STATE = useAuthStore.getState();
const INITIAL_PREVIEW_STATE = usePreviewStore.getState();
const INITIAL_ORBIT_STATE = useOrbitStore.getState();
export function resetPlayerStore(): void {
usePlayerStore.setState(INITIAL_PLAYER_STATE, true);
}
export function resetAuthStore(): void {
useAuthStore.setState(INITIAL_AUTH_STATE, true);
}
export function resetPreviewStore(): void {
usePreviewStore.setState(INITIAL_PREVIEW_STATE, true);
}
export function resetOrbitStore(): void {
useOrbitStore.setState(INITIAL_ORBIT_STATE, true);
}
export function resetAllStores(): void {
resetPlayerStore();
resetAuthStore();
resetPreviewStore();
resetOrbitStore();
}
+114
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@@ -0,0 +1,114 @@
/**
* Browser API mocks for jsdom.
*
* jsdom ships partial implementations of some Web APIs and stubs others
* entirely. Components that legitimately call `ResizeObserver`,
* `IntersectionObserver`, `matchMedia`, `navigator.clipboard`, or
* `URL.createObjectURL` need test-time implementations to avoid `is not a
* function` failures.
*
* `installBrowserMocks()` is idempotent — calling it twice is harmless.
* It is wired into setup.ts so every test file inherits the mocks; per-test
* overrides remain possible via `vi.spyOn` on the specific mock instance.
*/
import { vi } from 'vitest';
// ─── ResizeObserver ──────────────────────────────────────────────────────────
class MockResizeObserver implements ResizeObserver {
observe = vi.fn<(target: Element) => void>();
unobserve = vi.fn<(target: Element) => void>();
disconnect = vi.fn<() => void>();
}
// ─── IntersectionObserver ────────────────────────────────────────────────────
class MockIntersectionObserver implements IntersectionObserver {
readonly root: Element | Document | null = null;
readonly rootMargin: string = '0px';
readonly scrollMargin: string = '0px';
readonly thresholds: ReadonlyArray<number> = [];
observe = vi.fn<(target: Element) => void>();
unobserve = vi.fn<(target: Element) => void>();
disconnect = vi.fn<() => void>();
takeRecords = vi.fn<() => IntersectionObserverEntry[]>(() => []);
}
// ─── matchMedia ──────────────────────────────────────────────────────────────
function makeMockMediaQueryList(query: string): MediaQueryList {
const listeners = new Set<(e: MediaQueryListEvent) => void>();
const list = {
matches: false,
media: query,
onchange: null,
addListener: vi.fn((cb: (e: MediaQueryListEvent) => void) => listeners.add(cb)),
removeListener: vi.fn((cb: (e: MediaQueryListEvent) => void) => listeners.delete(cb)),
addEventListener: vi.fn((_type: string, cb: EventListenerOrEventListenerObject) =>
listeners.add(cb as (e: MediaQueryListEvent) => void),
),
removeEventListener: vi.fn((_type: string, cb: EventListenerOrEventListenerObject) =>
listeners.delete(cb as (e: MediaQueryListEvent) => void),
),
dispatchEvent: vi.fn(() => true),
} as unknown as MediaQueryList;
return list;
}
// ─── Clipboard ───────────────────────────────────────────────────────────────
let clipboardContents = '';
const clipboardMock = {
writeText: vi.fn(async (text: string) => {
clipboardContents = String(text);
}),
readText: vi.fn(async () => clipboardContents),
};
export function getMockClipboardContents(): string {
return clipboardContents;
}
// ─── URL.createObjectURL / revokeObjectURL ───────────────────────────────────
let objectUrlCounter = 0;
const createObjectUrlMock = vi.fn((_blob: Blob | MediaSource) => {
objectUrlCounter += 1;
return `blob:mock://obj-${objectUrlCounter}`;
});
const revokeObjectUrlMock = vi.fn<(url: string) => void>();
// ─── Install ─────────────────────────────────────────────────────────────────
let installed = false;
export function installBrowserMocks(): void {
if (installed) return;
installed = true;
globalThis.ResizeObserver = MockResizeObserver as unknown as typeof ResizeObserver;
globalThis.IntersectionObserver = MockIntersectionObserver as unknown as typeof IntersectionObserver;
if (typeof window !== 'undefined') {
Object.defineProperty(window, 'matchMedia', {
configurable: true,
writable: true,
value: vi.fn((query: string) => makeMockMediaQueryList(query)),
});
Object.defineProperty(window.navigator, 'clipboard', {
configurable: true,
writable: true,
value: clipboardMock,
});
}
if (typeof URL !== 'undefined') {
URL.createObjectURL = createObjectUrlMock as unknown as typeof URL.createObjectURL;
URL.revokeObjectURL = revokeObjectUrlMock as unknown as typeof URL.revokeObjectURL;
}
}
export function resetBrowserMocks(): void {
clipboardContents = '';
objectUrlCounter = 0;
clipboardMock.writeText.mockClear();
clipboardMock.readText.mockClear();
createObjectUrlMock.mockClear();
revokeObjectUrlMock.mockClear();
}
export { clipboardMock, createObjectUrlMock, revokeObjectUrlMock };
+101
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@@ -0,0 +1,101 @@
/**
* Subsonic API mock fixtures.
*
* `vi.mock('@/api/subsonic')` is hoisted in the test file itself (vitest
* limitation — factory functions can't reach helper modules at hoist time).
* This module supplies the *data* the test injects into those mocks:
*
* // In the test:
* vi.mock('@/api/subsonic');
* import { getAlbum, buildStreamUrl } from '@/api/subsonic';
* import { sampleAlbumWithSongs, mockStreamUrl } from '@/test/mocks/subsonic';
*
* beforeEach(() => {
* vi.mocked(getAlbum).mockResolvedValue(sampleAlbumWithSongs);
* vi.mocked(buildStreamUrl).mockImplementation(mockStreamUrl);
* });
*
* Realistic shape matters more than perfect coverage — these fixtures
* mirror what Navidrome actually returns for common queries.
*/
import type { SubsonicSong, SubsonicAlbum, SubsonicPlaylist } from '@/api/subsonic';
import { makeSubsonicSong } from '@/test/helpers/factories';
export const sampleSubsonicSong: SubsonicSong = makeSubsonicSong({
id: 'song-1',
title: 'Sample Song',
artist: 'Sample Artist',
album: 'Sample Album',
albumId: 'album-1',
artistId: 'artist-1',
});
export const sampleEmptyAlbum: SubsonicAlbum = {
id: 'album-empty',
name: 'Empty Album',
artist: 'Sample Artist',
artistId: 'artist-1',
songCount: 0,
duration: 0,
};
export const sampleAlbumWithSong: SubsonicAlbum & { song: SubsonicSong } = {
id: 'album-single',
name: 'Single-Song Album',
artist: 'Sample Artist',
artistId: 'artist-1',
coverArt: 'album-single',
songCount: 1,
duration: 180,
year: 2024,
song: sampleSubsonicSong,
};
export const sampleAlbumWithSongs: SubsonicAlbum & { song: SubsonicSong[] } = {
id: 'album-multi',
name: 'Multi-Track Album',
artist: 'Sample Artist',
artistId: 'artist-1',
coverArt: 'album-multi',
songCount: 3,
duration: 540,
year: 2024,
genre: 'Rock',
song: [
makeSubsonicSong({ id: 'song-m1', title: 'Track 1', album: 'Multi-Track Album', albumId: 'album-multi', track: 1 }),
makeSubsonicSong({ id: 'song-m2', title: 'Track 2', album: 'Multi-Track Album', albumId: 'album-multi', track: 2 }),
makeSubsonicSong({ id: 'song-m3', title: 'Track 3', album: 'Multi-Track Album', albumId: 'album-multi', track: 3 }),
],
};
export const samplePlaylist: SubsonicPlaylist = {
id: 'pl-1',
name: 'Sample Playlist',
songCount: 2,
duration: 360,
created: '2026-01-01T00:00:00Z',
changed: '2026-01-15T00:00:00Z',
owner: 'tester',
public: false,
coverArt: 'pl-1',
};
export function mockStreamUrl(id: string): string {
return `https://mock.subsonic.test/rest/stream.view?id=${encodeURIComponent(id)}`;
}
export function mockCoverArtUrl(id: string, size = 256): string {
return `https://mock.subsonic.test/rest/getCoverArt.view?id=${encodeURIComponent(id)}&size=${size}`;
}
export function mockCoverArtCacheKey(id: string, size = 256): string {
return `mock-server:cover:${id}:${size}`;
}
/** Generic Subsonic error shape for tests asserting failure paths. */
export class MockSubsonicError extends Error {
constructor(message: string, public readonly code = 40) {
super(message);
this.name = 'MockSubsonicError';
}
}
+11
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@@ -69,6 +69,17 @@ export function emitTauriEvent(event: string, payload: unknown): void {
for (const cb of eventListeners.get(event) ?? []) cb(payload);
}
/**
* How many `listen()` callbacks are currently registered for `<event>`.
*
* Use for regression tests of listener lifecycle — e.g. re-initializing a
* store should not double-register `audio:progress` handlers. See
* `feedback_global_shortcut_double_fire` for the canonical motivating bug.
*/
export function tauriMockListenerCount(event: string): number {
return eventListeners.get(event)?.length ?? 0;
}
/** Clear all handlers + listeners + call counts. Wired to `beforeEach` below. */
export function resetTauriMocks(): void {
invokeHandlers.clear();
+10 -1
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@@ -1,6 +1,7 @@
import '@testing-library/jest-dom/vitest';
import { afterEach, vi } from 'vitest';
import { afterEach, beforeEach, vi } from 'vitest';
import { cleanup } from '@testing-library/react';
import { installBrowserMocks, resetBrowserMocks } from './mocks/browser';
// ─────────────────────────────────────────────────────────────────────────────
// Node 25 ships a native `localStorage` global that is broken on this
@@ -65,6 +66,10 @@ function installStorage(globalKey: 'localStorage' | 'sessionStorage', store: Sto
installStorage('localStorage', memLocal);
installStorage('sessionStorage', memSession);
// Install jsdom-gap browser API mocks (ResizeObserver / IntersectionObserver /
// matchMedia / clipboard / object URLs) so components don't crash on import.
installBrowserMocks();
// ─────────────────────────────────────────────────────────────────────────────
// Global Tauri mocks.
//
@@ -93,6 +98,10 @@ vi.mock('@tauri-apps/plugin-shell', () => ({
open: vi.fn(async () => {}),
}));
beforeEach(() => {
resetBrowserMocks();
});
afterEach(() => {
cleanup();
memLocal.clear();
+216
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@@ -0,0 +1,216 @@
/**
* DOM-touching tests for `dynamicColors.ts` — orchestrator paths in
* `extractCoverColors` that exercise the Image / canvas / fetch surfaces.
*
* jsdom ships HTMLImageElement but does not fire onload/onerror; canvas
* `getContext('2d')` returns null. We swap in lightweight mocks so the
* orchestrator's branch logic gets covered without a real browser.
*
* Pure-math helpers live in `dynamicColors.test.ts`.
*/
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { extractCoverColors } from './dynamicColors';
type ImageBehavior = 'load' | 'error';
interface MockImageHandle {
setBehavior(b: ImageBehavior): void;
}
function installImageMock(): MockImageHandle {
let behavior: ImageBehavior = 'load';
const original = globalThis.Image;
class MockImage {
onload: (() => void) | null = null;
onerror: (() => void) | null = null;
crossOrigin = '';
private _src = '';
get src() { return this._src; }
set src(v: string) {
this._src = v;
queueMicrotask(() => {
if (behavior === 'load') this.onload?.();
else this.onerror?.();
});
}
}
globalThis.Image = MockImage as unknown as typeof Image;
return {
setBehavior(b: ImageBehavior) { behavior = b; },
[Symbol.dispose]: () => { globalThis.Image = original; },
} as MockImageHandle;
}
function installCanvasContextMock(opts: { tainted?: boolean } = {}): () => void {
const originalGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = function (this: HTMLCanvasElement, _id: string) {
if (opts.tainted) {
return {
drawImage: vi.fn(),
getImageData: vi.fn(() => {
throw new Error('tainted canvas');
}),
} as unknown as CanvasRenderingContext2D;
}
// Return a context with a fixed 8x8 image where every pixel is a vibrant
// orange — the saturation pick will land on it, exercising the
// sampleImageToAccent loop.
const data = new Uint8ClampedArray(8 * 8 * 4);
for (let i = 0; i < data.length; i += 4) {
data[i] = 230; // R
data[i + 1] = 110; // G
data[i + 2] = 30; // B
data[i + 3] = 255; // A
}
return {
drawImage: vi.fn(),
getImageData: vi.fn(() => ({ data, width: 8, height: 8 })),
} as unknown as CanvasRenderingContext2D;
} as typeof HTMLCanvasElement.prototype.getContext;
return () => {
HTMLCanvasElement.prototype.getContext = originalGetContext;
};
}
describe('extractCoverColors — early returns', () => {
it('returns empty for an empty URL', async () => {
expect(await extractCoverColors('')).toEqual({ accent: '' });
});
it('returns empty for the bundled logo (avoids self-tinting)', async () => {
expect(await extractCoverColors('/assets/logo-psysonic-256.png')).toEqual({ accent: '' });
});
});
describe('extractCoverColors — blob: URL', () => {
let imageMock: MockImageHandle;
let restoreCanvas: () => void;
beforeEach(() => {
imageMock = installImageMock();
restoreCanvas = installCanvasContextMock();
});
afterEach(() => {
(imageMock as { [Symbol.dispose]?: () => void })[Symbol.dispose]?.();
restoreCanvas();
});
it('returns an accent on a successful sample', async () => {
imageMock.setBehavior('load');
const result = await extractCoverColors('blob:fake/abc-123');
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
});
it('returns empty when image load fails', async () => {
imageMock.setBehavior('error');
const result = await extractCoverColors('blob:fake/oops');
expect(result).toEqual({ accent: '' });
});
it('returns empty when the canvas is tainted', async () => {
imageMock.setBehavior('load');
restoreCanvas(); // swap to tainted canvas
restoreCanvas = installCanvasContextMock({ tainted: true });
const result = await extractCoverColors('blob:fake/tainted');
expect(result).toEqual({ accent: '' });
});
it('returns empty when getContext returns null', async () => {
imageMock.setBehavior('load');
const originalGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = (() => null) as typeof HTMLCanvasElement.prototype.getContext;
try {
const result = await extractCoverColors('blob:fake/no-ctx');
expect(result).toEqual({ accent: '' });
} finally {
HTMLCanvasElement.prototype.getContext = originalGetContext;
}
});
});
describe('extractCoverColors — remote http(s) URL', () => {
let imageMock: MockImageHandle;
let restoreCanvas: () => void;
let fetchMock: ReturnType<typeof vi.fn>;
const originalFetch = globalThis.fetch;
beforeEach(() => {
imageMock = installImageMock();
restoreCanvas = installCanvasContextMock();
fetchMock = vi.fn();
globalThis.fetch = fetchMock as unknown as typeof fetch;
});
afterEach(() => {
(imageMock as { [Symbol.dispose]?: () => void })[Symbol.dispose]?.();
restoreCanvas();
globalThis.fetch = originalFetch;
});
it('fetches the blob, samples, and revokes the object URL', async () => {
imageMock.setBehavior('load');
const blob = new Blob([new Uint8Array([1, 2, 3])], { type: 'image/png' });
fetchMock.mockResolvedValue({ ok: true, blob: async () => blob } as Response);
const result = await extractCoverColors('https://music.example.com/cover.png');
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
expect(fetchMock).toHaveBeenCalledWith('https://music.example.com/cover.png');
expect(URL.revokeObjectURL).toHaveBeenCalled();
});
it('falls back to crossOrigin=anonymous when fetch fails', async () => {
imageMock.setBehavior('load');
fetchMock.mockRejectedValue(new Error('CORS blocked'));
const result = await extractCoverColors('https://music.example.com/cover.png');
// Anonymous-CORS image load succeeds in the mock → still samples.
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
});
it('falls back to crossOrigin=anonymous when fetch returns !ok', async () => {
imageMock.setBehavior('load');
fetchMock.mockResolvedValue({ ok: false, blob: async () => new Blob() } as Response);
const result = await extractCoverColors('https://music.example.com/cover.png');
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
});
it('returns empty when both fetch and the anonymous fallback fail', async () => {
imageMock.setBehavior('error');
fetchMock.mockRejectedValue(new Error('network down'));
const result = await extractCoverColors('https://music.example.com/cover.png');
expect(result).toEqual({ accent: '' });
});
});
describe('extractCoverColors — other URL shapes', () => {
let imageMock: MockImageHandle;
let restoreCanvas: () => void;
beforeEach(() => {
imageMock = installImageMock();
restoreCanvas = installCanvasContextMock();
});
afterEach(() => {
(imageMock as { [Symbol.dispose]?: () => void })[Symbol.dispose]?.();
restoreCanvas();
});
it('handles a data: URL through the same blob-or-data path', async () => {
imageMock.setBehavior('load');
const result = await extractCoverColors('data:image/png;base64,iVBORw0KGgo=');
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
});
it('handles a relative path as a direct image load', async () => {
imageMock.setBehavior('load');
const result = await extractCoverColors('/local/cover.jpg');
expect(result.accent).toMatch(/^rgb\(\d+,\d+,\d+\)$/);
});
});
+92 -1
View File
@@ -1,7 +1,8 @@
import { describe, expect, it } from 'vitest';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import {
SERVER_MAGIC_STRING_PREFIX,
DECODED_PASSWORD_VISUAL_MASK,
copyTextToClipboard,
decodeServerMagicString,
decodeServerMagicStringFromText,
encodeServerMagicString,
@@ -36,12 +37,55 @@ describe('serverMagicString', () => {
expect(decodeServerMagicString(encoded)).toEqual(original);
});
it('drops a name that becomes empty after trim', () => {
const encoded = encodeServerMagicString({
url: 'https://x.example',
username: 'u',
password: 'p',
name: ' ',
});
const decoded = decodeServerMagicString(encoded);
expect(decoded?.name).toBeUndefined();
});
it('rejects invalid input', () => {
expect(decodeServerMagicString('')).toBeNull();
expect(decodeServerMagicString('nope')).toBeNull();
expect(decodeServerMagicString(`${SERVER_MAGIC_STRING_PREFIX}%%%`)).toBeNull();
});
it('rejects an empty payload after the prefix', () => {
expect(decodeServerMagicString(SERVER_MAGIC_STRING_PREFIX)).toBeNull();
expect(decodeServerMagicString(`${SERVER_MAGIC_STRING_PREFIX} `)).toBeNull();
});
it('rejects a payload that is not JSON', () => {
// valid base64url of "not-json" → JSON.parse throws
const garbage = `${SERVER_MAGIC_STRING_PREFIX}bm90LWpzb24`;
expect(decodeServerMagicString(garbage)).toBeNull();
});
it('rejects a payload with the wrong version', () => {
const wrongVersion = btoa(JSON.stringify({ v: 2, url: 'https://x', u: 'u', w: 'p' }))
.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeServerMagicString(SERVER_MAGIC_STRING_PREFIX + wrongVersion)).toBeNull();
});
it('rejects a payload missing url or username', () => {
const noUrl = btoa(JSON.stringify({ v: 1, url: '', u: 'u', w: 'p' }))
.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeServerMagicString(SERVER_MAGIC_STRING_PREFIX + noUrl)).toBeNull();
const noUser = btoa(JSON.stringify({ v: 1, url: 'https://x', u: '', w: 'p' }))
.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeServerMagicString(SERVER_MAGIC_STRING_PREFIX + noUser)).toBeNull();
});
it('rejects a payload where url/username are not strings', () => {
const wrongTypes = btoa(JSON.stringify({ v: 1, url: 42, u: ['a'], w: 'p' }))
.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeServerMagicString(SERVER_MAGIC_STRING_PREFIX + wrongTypes)).toBeNull();
});
it('decodes invite embedded in surrounding text', () => {
const original = {
url: 'https://music.example.com',
@@ -52,4 +96,51 @@ describe('serverMagicString', () => {
expect(decodeServerMagicStringFromText(`Copy:\n${line}\nThanks`)).toEqual(original);
expect(decodeServerMagicStringFromText('no token')).toBeNull();
});
it('rejects text that contains only the bare prefix', () => {
expect(decodeServerMagicStringFromText(`prefix only: ${SERVER_MAGIC_STRING_PREFIX} done`)).toBeNull();
});
});
describe('copyTextToClipboard', () => {
const originalExecCommand = document.execCommand;
beforeEach(() => {
// setup.ts already installs a clipboard mock — start each test fresh.
vi.mocked(navigator.clipboard.writeText).mockResolvedValue();
});
afterEach(() => {
document.execCommand = originalExecCommand;
});
it('uses the modern clipboard API on success', async () => {
const ok = await copyTextToClipboard('hello');
expect(ok).toBe(true);
expect(navigator.clipboard.writeText).toHaveBeenCalledWith('hello');
});
it('falls back to execCommand("copy") when clipboard API rejects', async () => {
vi.mocked(navigator.clipboard.writeText).mockRejectedValueOnce(new Error('blocked'));
document.execCommand = vi.fn(() => true) as unknown as typeof document.execCommand;
const ok = await copyTextToClipboard('fallback-text');
expect(ok).toBe(true);
expect(document.execCommand).toHaveBeenCalledWith('copy');
});
it('returns false when both clipboard API and execCommand fail', async () => {
vi.mocked(navigator.clipboard.writeText).mockRejectedValueOnce(new Error('blocked'));
document.execCommand = vi.fn(() => {
throw new Error('not allowed');
}) as unknown as typeof document.execCommand;
const ok = await copyTextToClipboard('x');
expect(ok).toBe(false);
});
it('returns the result of execCommand even when it returns false', async () => {
vi.mocked(navigator.clipboard.writeText).mockRejectedValueOnce(new Error('blocked'));
document.execCommand = vi.fn(() => false) as unknown as typeof document.execCommand;
const ok = await copyTextToClipboard('x');
expect(ok).toBe(false);
});
});
+206 -1
View File
@@ -1,10 +1,14 @@
import { describe, expect, it } from 'vitest';
import {
PSYSONIC_SHARE_PREFIX,
decodeOrbitSharePayloadFromText,
decodeSharePayloadFromText,
encodeSharePayload,
PSYSONIC_SHARE_PREFIX,
findServerIdForShareUrl,
normalizeShareServerUrl,
} from './shareLink';
import { decodeServerMagicString, encodeServerMagicString, SERVER_MAGIC_STRING_PREFIX } from './serverMagicString';
import { makeServer } from '@/test/helpers/factories';
describe('shareLink vs serverMagicString', () => {
it('uses the same psysonic* prefix family as server invites (distinct digit)', () => {
@@ -63,3 +67,204 @@ describe('shareLink vs serverMagicString', () => {
expect(decodeServerMagicString(encoded)).toBeNull();
});
});
describe('normalizeShareServerUrl', () => {
it('returns empty string for whitespace input', () => {
expect(normalizeShareServerUrl(' ')).toBe('');
expect(normalizeShareServerUrl('')).toBe('');
});
it('strips trailing slashes', () => {
expect(normalizeShareServerUrl('https://x.example/')).toBe('https://x.example');
expect(normalizeShareServerUrl('https://x.example')).toBe('https://x.example');
});
it('prepends http:// when no scheme is given', () => {
expect(normalizeShareServerUrl('192.168.1.10:4533')).toBe('http://192.168.1.10:4533');
expect(normalizeShareServerUrl('music.local')).toBe('http://music.local');
});
it('leaves https URLs unchanged (modulo trailing slash)', () => {
expect(normalizeShareServerUrl('https://music.example.com')).toBe('https://music.example.com');
});
});
describe('encodeSharePayload — entity kinds', () => {
it('round-trips a track share', () => {
const encoded = encodeSharePayload({ srv: 'https://x.example', k: 'track', id: 't-1' });
expect(decodeSharePayloadFromText(encoded)).toEqual({
srv: 'https://x.example',
k: 'track',
id: 't-1',
});
});
it('round-trips an artist share', () => {
const encoded = encodeSharePayload({ srv: 'https://x.example', k: 'artist', id: 'ar-1' });
expect(decodeSharePayloadFromText(encoded)).toEqual({
srv: 'https://x.example',
k: 'artist',
id: 'ar-1',
});
});
it('round-trips a composer share', () => {
const encoded = encodeSharePayload({ srv: 'https://x.example', k: 'composer', id: 'co-1' });
expect(decodeSharePayloadFromText(encoded)).toEqual({
srv: 'https://x.example',
k: 'composer',
id: 'co-1',
});
});
it('trims whitespace in queue ids and drops empty ones', () => {
const encoded = encodeSharePayload({
srv: 'https://x.example',
k: 'queue',
ids: [' a ', '', 'b', ' '],
});
expect(decodeSharePayloadFromText(encoded)).toEqual({
srv: 'https://x.example',
k: 'queue',
ids: ['a', 'b'],
});
});
});
describe('decodeSharePayloadFromText — rejection paths', () => {
it('rejects text with no prefix', () => {
expect(decodeSharePayloadFromText('just text')).toBeNull();
});
it('rejects bare prefix with no token', () => {
expect(decodeSharePayloadFromText(`a ${PSYSONIC_SHARE_PREFIX} b`)).toBeNull();
});
it('rejects a payload with the wrong version', () => {
const body = JSON.stringify({ v: 2, srv: 'https://x.example', k: 'track', id: 't' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects a payload with non-string srv', () => {
const body = JSON.stringify({ v: 1, srv: 42, k: 'track', id: 't' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects an unknown entity kind', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'playlist', id: 'pl-1' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects an entity payload with an empty id', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'track', id: ' ' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects a queue payload with no ids', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'queue', ids: [] });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects a queue payload where ids is not an array', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'queue', ids: 'a,b' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects a queue payload whose ids are all whitespace', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'queue', ids: [' ', ''] });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects malformed base64', () => {
expect(decodeSharePayloadFromText(`${PSYSONIC_SHARE_PREFIX}!!!notbase64!!!`)).toBeNull();
});
it('refuses to surface an orbit payload via the entity decoder', () => {
const orbit = encodeSharePayload({ srv: 'https://x.example', k: 'orbit', sid: 'abcd1234' });
expect(decodeSharePayloadFromText(orbit)).toBeNull();
});
});
describe('decodeOrbitSharePayloadFromText', () => {
it('round-trips an orbit invite', () => {
const encoded = encodeSharePayload({ srv: 'https://x.example', k: 'orbit', sid: 'abcd1234' });
expect(decodeOrbitSharePayloadFromText(`come to orbit: ${encoded}`)).toEqual({
srv: 'https://x.example',
k: 'orbit',
sid: 'abcd1234',
});
});
it('lowercases the session id', () => {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'orbit', sid: 'ABCD1234' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeOrbitSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toEqual({
srv: 'https://x.example',
k: 'orbit',
sid: 'abcd1234',
});
});
it('rejects text with no prefix', () => {
expect(decodeOrbitSharePayloadFromText('hello')).toBeNull();
});
it('rejects bare prefix with no token', () => {
expect(decodeOrbitSharePayloadFromText(`a ${PSYSONIC_SHARE_PREFIX} b`)).toBeNull();
});
it('rejects a non-orbit payload kind', () => {
const encoded = encodeSharePayload({ srv: 'https://x.example', k: 'track', id: 't' });
expect(decodeOrbitSharePayloadFromText(encoded)).toBeNull();
});
it('rejects an invalid version', () => {
const body = JSON.stringify({ v: 9, srv: 'https://x.example', k: 'orbit', sid: 'abcd1234' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeOrbitSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects an empty server', () => {
const body = JSON.stringify({ v: 1, srv: '', k: 'orbit', sid: 'abcd1234' });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeOrbitSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
});
it('rejects a session id that is not 8 hex characters', () => {
const sids = ['', 'abcd', 'abcd1234e', 'zzzz1234'];
for (const sid of sids) {
const body = JSON.stringify({ v: 1, srv: 'https://x.example', k: 'orbit', sid });
const b64 = btoa(body).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
expect(decodeOrbitSharePayloadFromText(PSYSONIC_SHARE_PREFIX + b64)).toBeNull();
}
});
it('rejects malformed base64', () => {
expect(decodeOrbitSharePayloadFromText(`${PSYSONIC_SHARE_PREFIX}!!!`)).toBeNull();
});
});
describe('findServerIdForShareUrl', () => {
it('matches by normalized URL', () => {
const a = makeServer({ id: 'a', url: 'https://music.example.com/' });
const b = makeServer({ id: 'b', url: 'http://other.local' });
expect(findServerIdForShareUrl([a, b], 'https://music.example.com')).toBe('a');
expect(findServerIdForShareUrl([a, b], 'http://other.local/')).toBe('b');
});
it('returns null when no server matches', () => {
const a = makeServer({ id: 'a', url: 'https://music.example.com' });
expect(findServerIdForShareUrl([a], 'https://elsewhere.example')).toBeNull();
});
it('returns null on an empty server list', () => {
expect(findServerIdForShareUrl([], 'https://x.example')).toBeNull();
});
});