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60 lines
1.6 KiB
TypeScript
60 lines
1.6 KiB
TypeScript
import InMemoryCache from '@joplin/lib/InMemoryCache';
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const time = require('@joplin/lib/time').default;
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describe('InMemoryCache', function() {
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it('should get and set values', () => {
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const cache = new InMemoryCache();
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expect(cache.value('test')).toBe(undefined);
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expect(cache.value('test', 'default')).toBe('default');
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cache.setValue('test', 'something');
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expect(cache.value('test')).toBe('something');
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// Check we get the exact same object back (cache should not copy)
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const someObj = { abcd: '123' };
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cache.setValue('someObj', someObj);
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expect(cache.value('someObj')).toBe(someObj);
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});
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it('should expire values', async () => {
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const cache = new InMemoryCache();
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// Check that the value is udefined once the cache has expired
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cache.setValue('test', 'something', 500);
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expect(cache.value('test')).toBe('something');
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await time.msleep(510);
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expect(cache.value('test')).toBe(undefined);
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// Check that the TTL is reset every time setValue is called
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cache.setValue('test', 'something', 300);
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await time.msleep(100);
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cache.setValue('test', 'something', 300);
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await time.msleep(100);
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cache.setValue('test', 'something', 300);
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await time.msleep(100);
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cache.setValue('test', 'something', 300);
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await time.msleep(100);
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expect(cache.value('test')).toBe('something');
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});
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it('should delete old records', async () => {
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const cache = new InMemoryCache(5);
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cache.setValue('1', '1');
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cache.setValue('2', '2');
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cache.setValue('3', '3');
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cache.setValue('4', '4');
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cache.setValue('5', '5');
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expect(cache.value('1')).toBe('1');
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cache.setValue('6', '6');
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expect(cache.value('1')).toBe(undefined);
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});
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});
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