summaryrefslogtreecommitdiff
path: root/packages/backend/test/unit/misc/QuantumKVCache.ts
diff options
context:
space:
mode:
Diffstat (limited to 'packages/backend/test/unit/misc/QuantumKVCache.ts')
-rw-r--r--packages/backend/test/unit/misc/QuantumKVCache.ts799
1 files changed, 799 insertions, 0 deletions
diff --git a/packages/backend/test/unit/misc/QuantumKVCache.ts b/packages/backend/test/unit/misc/QuantumKVCache.ts
new file mode 100644
index 0000000000..92792171be
--- /dev/null
+++ b/packages/backend/test/unit/misc/QuantumKVCache.ts
@@ -0,0 +1,799 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { jest } from '@jest/globals';
+import { FakeInternalEventService } from '../../misc/FakeInternalEventService.js';
+import { QuantumKVCache, QuantumKVOpts } from '@/misc/QuantumKVCache.js';
+
+describe(QuantumKVCache, () => {
+ let fakeInternalEventService: FakeInternalEventService;
+ let madeCaches: { dispose: () => void }[];
+
+ function makeCache<T>(opts?: Partial<QuantumKVOpts<T>> & { name?: string }): QuantumKVCache<T> {
+ const _opts = {
+ name: 'test',
+ lifetime: Infinity,
+ fetcher: () => { throw new Error('not implemented'); },
+ } satisfies QuantumKVOpts<T> & { name: string };
+
+ if (opts) {
+ Object.assign(_opts, opts);
+ }
+
+ const cache = new QuantumKVCache<T>(fakeInternalEventService, _opts.name, _opts);
+ madeCaches.push(cache);
+ return cache;
+ }
+
+ beforeEach(() => {
+ madeCaches = [];
+ fakeInternalEventService = new FakeInternalEventService();
+ });
+
+ afterEach(() => {
+ madeCaches.forEach(cache => {
+ cache.dispose();
+ });
+ });
+
+ it('should connect on construct', () => {
+ makeCache();
+
+ expect(fakeInternalEventService._calls).toContainEqual(['on', ['quantumCacheUpdated', expect.anything(), { ignoreLocal: true }]]);
+ });
+
+ it('should disconnect on dispose', () => {
+ const cache = makeCache();
+
+ cache.dispose();
+
+ const callback = fakeInternalEventService._calls
+ .find(c => c[0] === 'on' && c[1][0] === 'quantumCacheUpdated')
+ ?.[1][1];
+ expect(fakeInternalEventService._calls).toContainEqual(['off', ['quantumCacheUpdated', callback]]);
+ });
+
+ it('should store in memory cache', async () => {
+ const cache = makeCache<string>();
+
+ await cache.set('foo', 'bar');
+ await cache.set('alpha', 'omega');
+
+ const result1 = await cache.get('foo');
+ const result2 = await cache.get('alpha');
+
+ expect(result1).toBe('bar');
+ expect(result2).toBe('omega');
+ });
+
+ it('should emit event when storing', async () => {
+ const cache = makeCache<string>({ name: 'fake' });
+
+ await cache.set('foo', 'bar');
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo'] }]]);
+ });
+
+ it('should call onChanged when storing', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.set('foo', 'bar');
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ it('should not emit event when storing unchanged value', async () => {
+ const cache = makeCache<string>({ name: 'fake' });
+
+ await cache.set('foo', 'bar');
+ await cache.set('foo', 'bar');
+
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(1);
+ });
+
+ it('should not call onChanged when storing unchanged value', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.set('foo', 'bar');
+ await cache.set('foo', 'bar');
+
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should fetch an unknown value', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ const result = await cache.fetch('foo');
+
+ expect(result).toBe('value#foo');
+ });
+
+ it('should store fetched value in memory cache', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ await cache.fetch('foo');
+
+ const result = cache.has('foo');
+ expect(result).toBe(true);
+ });
+
+ it('should call onChanged when fetching', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.fetch('foo');
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ it('should not emit event when fetching', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ await cache.fetch('foo');
+
+ expect(fakeInternalEventService._calls).not.toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo'] }]]);
+ });
+
+ it('should delete from memory cache', async () => {
+ const cache = makeCache<string>();
+
+ await cache.set('foo', 'bar');
+ await cache.delete('foo');
+
+ const result = cache.has('foo');
+ expect(result).toBe(false);
+ });
+
+ it('should call onChanged when deleting', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.set('foo', 'bar');
+ await cache.delete('foo');
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ it('should emit event when deleting', async () => {
+ const cache = makeCache<string>({ name: 'fake' });
+
+ await cache.set('foo', 'bar');
+ await cache.delete('foo');
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo'] }]]);
+ });
+
+ it('should delete when receiving set event', async () => {
+ const cache = makeCache<string>({ name: 'fake' });
+ await cache.set('foo', 'bar');
+
+ await fakeInternalEventService._emitRedis('quantumCacheUpdated', { name: 'fake', keys: ['foo'] });
+
+ const result = cache.has('foo');
+ expect(result).toBe(false);
+ });
+
+ it('should call onChanged when receiving set event', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await fakeInternalEventService._emitRedis('quantumCacheUpdated', { name: 'fake', keys: ['foo'] });
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ it('should delete when receiving delete event', async () => {
+ const cache = makeCache<string>({ name: 'fake' });
+ await cache.set('foo', 'bar');
+
+ await fakeInternalEventService._emitRedis('quantumCacheUpdated', { name: 'fake', keys: ['foo'] });
+
+ const result = cache.has('foo');
+ expect(result).toBe(false);
+ });
+
+ it('should call onChanged when receiving delete event', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+ await cache.set('foo', 'bar');
+
+ await fakeInternalEventService._emitRedis('quantumCacheUpdated', { name: 'fake', keys: ['foo'] });
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ describe('get', () => {
+ it('should return value if present', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = cache.get('foo');
+
+ expect(result).toBe('bar');
+ });
+ it('should return undefined if missing', () => {
+ const cache = makeCache<string>();
+
+ const result = cache.get('foo');
+
+ expect(result).toBe(undefined);
+ });
+ });
+
+ describe('setMany', () => {
+ it('should populate all values', async () => {
+ const cache = makeCache<string>();
+
+ await cache.setMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(cache.has('foo')).toBe(true);
+ expect(cache.has('alpha')).toBe(true);
+ });
+
+ it('should emit one event', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ });
+
+ await cache.setMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo', 'alpha'] }]]);
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(1);
+ });
+
+ it('should call onChanged once with all items', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.setMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should emit events only for changed items', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.set('foo', 'bar');
+ fakeOnChanged.mockClear();
+ fakeInternalEventService._reset();
+
+ await cache.setMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['alpha'] }]]);
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(1);
+ expect(fakeOnChanged).toHaveBeenCalledWith(['alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+ });
+
+ describe('getMany', () => {
+ it('should return empty for empty input', () => {
+ const cache = makeCache();
+ const result = cache.getMany([]);
+ expect(result).toEqual([]);
+ });
+
+ it('should return the value for all keys', () => {
+ const cache = makeCache();
+ cache.add('foo', 'bar');
+ cache.add('alpha', 'omega');
+
+ const result = cache.getMany(['foo', 'alpha']);
+
+ expect(result).toEqual([['foo', 'bar'], ['alpha', 'omega']]);
+ });
+
+ it('should return undefined for missing keys', () => {
+ const cache = makeCache();
+ cache.add('foo', 'bar');
+
+ const result = cache.getMany(['foo', 'alpha']);
+
+ expect(result).toEqual([['foo', 'bar'], ['alpha', undefined]]);
+ });
+ });
+
+ describe('fetchMany', () => {
+ it('should do nothing for empty input', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.fetchMany([]);
+
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+
+ it('should return existing items', async () => {
+ const cache = makeCache();
+ cache.add('foo', 'bar');
+ cache.add('alpha', 'omega');
+
+ const result = await cache.fetchMany(['foo', 'alpha']);
+
+ expect(result).toEqual([['foo', 'bar'], ['alpha', 'omega']]);
+ });
+
+ it('should return existing items without events', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ });
+ cache.add('foo', 'bar');
+ cache.add('alpha', 'omega');
+
+ await cache.fetchMany(['foo', 'alpha']);
+
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+
+ it('should call bulkFetcher for missing items', async () => {
+ const cache = makeCache({
+ bulkFetcher: keys => keys.map(k => [k, `${k}#many`]),
+ fetcher: key => `${key}#single`,
+ });
+
+ const results = await cache.fetchMany(['foo', 'alpha']);
+
+ expect(results).toEqual([['foo', 'foo#many'], ['alpha', 'alpha#many']]);
+ });
+
+ it('should call bulkFetcher only once', async () => {
+ const mockBulkFetcher = jest.fn((keys: string[]) => keys.map(k => [k, `${k}#value`] as [string, string]));
+ const cache = makeCache({
+ bulkFetcher: mockBulkFetcher,
+ });
+
+ await cache.fetchMany(['foo', 'bar']);
+
+ expect(mockBulkFetcher).toHaveBeenCalledTimes(1);
+ });
+
+ it('should call fetcher when fetchMany is undefined', async () => {
+ const cache = makeCache({
+ fetcher: key => `${key}#single`,
+ });
+
+ const results = await cache.fetchMany(['foo', 'alpha']);
+
+ expect(results).toEqual([['foo', 'foo#single'], ['alpha', 'alpha#single']]);
+ });
+
+ it('should call onChanged', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ fetcher: k => k,
+ });
+
+ await cache.fetchMany(['foo', 'alpha']);
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should call onChanged only for changed', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ fetcher: k => k,
+ });
+ cache.add('foo', 'bar');
+
+ await cache.fetchMany(['foo', 'alpha']);
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should not emit event', async () => {
+ const cache = makeCache({
+ fetcher: k => k,
+ });
+
+ await cache.fetchMany(['foo', 'alpha']);
+
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+ });
+
+ describe('refreshMany', () => {
+ it('should do nothing for empty input', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ });
+
+ const result = await cache.refreshMany([]);
+
+ expect(result).toEqual([]);
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+
+ it('should call bulkFetcher for all keys', async () => {
+ const mockBulkFetcher = jest.fn((keys: string[]) => keys.map(k => [k, `${k}#value`] as [string, string]));
+ const cache = makeCache({
+ bulkFetcher: mockBulkFetcher,
+ });
+
+ const result = await cache.refreshMany(['foo', 'alpha']);
+
+ expect(result).toEqual([['foo', 'foo#value'], ['alpha', 'alpha#value']]);
+ expect(mockBulkFetcher).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(mockBulkFetcher).toHaveBeenCalledTimes(1);
+ });
+
+ it('should replace any existing keys', async () => {
+ const mockBulkFetcher = jest.fn((keys: string[]) => keys.map(k => [k, `${k}#value`] as [string, string]));
+ const cache = makeCache({
+ bulkFetcher: mockBulkFetcher,
+ });
+ cache.add('foo', 'bar');
+
+ const result = await cache.refreshMany(['foo', 'alpha']);
+
+ expect(result).toEqual([['foo', 'foo#value'], ['alpha', 'alpha#value']]);
+ expect(mockBulkFetcher).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(mockBulkFetcher).toHaveBeenCalledTimes(1);
+ });
+
+ it('should call onChanged for all keys', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ bulkFetcher: keys => keys.map(k => [k, `${k}#value`]),
+ onChanged: fakeOnChanged,
+ });
+ cache.add('foo', 'bar');
+
+ await cache.refreshMany(['foo', 'alpha']);
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should emit event for all keys', async () => {
+ const cache = makeCache({
+ name: 'fake',
+ bulkFetcher: keys => keys.map(k => [k, `${k}#value`]),
+ });
+ cache.add('foo', 'bar');
+
+ await cache.refreshMany(['foo', 'alpha']);
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo', 'alpha'] }]]);
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(1);
+ });
+ });
+
+ describe('deleteMany', () => {
+ it('should remove keys from memory cache', async () => {
+ const cache = makeCache<string>();
+
+ await cache.set('foo', 'bar');
+ await cache.set('alpha', 'omega');
+ await cache.deleteMany(['foo', 'alpha']);
+
+ expect(cache.has('foo')).toBe(false);
+ expect(cache.has('alpha')).toBe(false);
+ });
+
+ it('should emit only one event', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ });
+
+ await cache.deleteMany(['foo', 'alpha']);
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo', 'alpha'] }]]);
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(1);
+ });
+
+ it('should call onChanged once with all items', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.deleteMany(['foo', 'alpha']);
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo', 'alpha'], cache);
+ expect(fakeOnChanged).toHaveBeenCalledTimes(1);
+ });
+
+ it('should do nothing if no keys are provided', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.deleteMany([]);
+
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+ });
+
+ describe('refresh', () => {
+ it('should populate the value', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ await cache.refresh('foo');
+
+ const result = cache.has('foo');
+ expect(result).toBe(true);
+ });
+
+ it('should return the value', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ const result = await cache.refresh('foo');
+
+ expect(result).toBe('value#foo');
+ });
+
+ it('should replace the value if it exists', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ await cache.set('foo', 'bar');
+ const result = await cache.refresh('foo');
+
+ expect(result).toBe('value#foo');
+ });
+
+ it('should call onChanged', async () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ onChanged: fakeOnChanged,
+ });
+
+ await cache.refresh('foo');
+
+ expect(fakeOnChanged).toHaveBeenCalledWith(['foo'], cache);
+ });
+
+ it('should emit event', async () => {
+ const cache = makeCache<string>({
+ name: 'fake',
+ fetcher: key => `value#${key}`,
+ });
+
+ await cache.refresh('foo');
+
+ expect(fakeInternalEventService._calls).toContainEqual(['emit', ['quantumCacheUpdated', { name: 'fake', keys: ['foo'] }]]);
+ });
+ });
+
+ describe('add', () => {
+ it('should add the item', () => {
+ const cache = makeCache();
+ cache.add('foo', 'bar');
+ expect(cache.has('foo')).toBe(true);
+ });
+
+ it('should not emit event', () => {
+ const cache = makeCache({
+ name: 'fake',
+ });
+
+ cache.add('foo', 'bar');
+
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+
+ it('should not call onChanged', () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ });
+
+ cache.add('foo', 'bar');
+
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ });
+ });
+
+ describe('addMany', () => {
+ it('should add all items', () => {
+ const cache = makeCache();
+
+ cache.addMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(cache.has('foo')).toBe(true);
+ expect(cache.has('alpha')).toBe(true);
+ });
+
+ it('should not emit event', () => {
+ const cache = makeCache({
+ name: 'fake',
+ });
+
+ cache.addMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(fakeInternalEventService._calls.filter(c => c[0] === 'emit')).toHaveLength(0);
+ });
+
+ it('should not call onChanged', () => {
+ const fakeOnChanged = jest.fn(() => Promise.resolve());
+ const cache = makeCache({
+ onChanged: fakeOnChanged,
+ });
+
+ cache.addMany([['foo', 'bar'], ['alpha', 'omega']]);
+
+ expect(fakeOnChanged).not.toHaveBeenCalled();
+ });
+ });
+
+ describe('has', () => {
+ it('should return false when empty', () => {
+ const cache = makeCache();
+ const result = cache.has('foo');
+ expect(result).toBe(false);
+ });
+
+ it('should return false when value is not in memory', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = cache.has('alpha');
+
+ expect(result).toBe(false);
+ });
+
+ it('should return true when value is in memory', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = cache.has('foo');
+
+ expect(result).toBe(true);
+ });
+ });
+
+ describe('size', () => {
+ it('should return 0 when empty', () => {
+ const cache = makeCache();
+ expect(cache.size).toBe(0);
+ });
+
+ it('should return correct size when populated', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ expect(cache.size).toBe(1);
+ });
+ });
+
+ describe('entries', () => {
+ it('should return empty when empty', () => {
+ const cache = makeCache();
+
+ const result = Array.from(cache.entries());
+
+ expect(result).toHaveLength(0);
+ });
+
+ it('should return all entries when populated', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = Array.from(cache.entries());
+
+ expect(result).toEqual([['foo', 'bar']]);
+ });
+ });
+
+ describe('keys', () => {
+ it('should return empty when empty', () => {
+ const cache = makeCache();
+
+ const result = Array.from(cache.keys());
+
+ expect(result).toHaveLength(0);
+ });
+
+ it('should return all keys when populated', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = Array.from(cache.keys());
+
+ expect(result).toEqual(['foo']);
+ });
+ });
+
+ describe('values', () => {
+ it('should return empty when empty', () => {
+ const cache = makeCache();
+
+ const result = Array.from(cache.values());
+
+ expect(result).toHaveLength(0);
+ });
+
+ it('should return all values when populated', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = Array.from(cache.values());
+
+ expect(result).toEqual(['bar']);
+ });
+ });
+
+ describe('[Symbol.iterator]', () => {
+ it('should return empty when empty', () => {
+ const cache = makeCache();
+
+ const result = Array.from(cache);
+
+ expect(result).toHaveLength(0);
+ });
+
+ it('should return all entries when populated', async () => {
+ const cache = makeCache<string>();
+ await cache.set('foo', 'bar');
+
+ const result = Array.from(cache);
+
+ expect(result).toEqual([['foo', 'bar']]);
+ });
+ });
+});
generated by cgit v1.2.3-freya (git 2.53.0.84.g453e7b744a) at 2026-03-03 04:12:27 +0000