66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
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import Cache from '~/lib/utils/cache';
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describe('Cache', () => {
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const dummyKey = 'just some key';
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const dummyValue = 'more than a value';
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let cache;
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beforeEach(() => {
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cache = new Cache();
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});
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describe('get', () => {
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it('return cached data', () => {
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cache.internalStorage[dummyKey] = dummyValue;
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expect(cache.get(dummyKey)).toBe(dummyValue);
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});
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it('returns undefined for missing data', () => {
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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expect(cache.get(dummyKey)).toBe(undefined);
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});
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});
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describe('hasData', () => {
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it('return true for cached data', () => {
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cache.internalStorage[dummyKey] = dummyValue;
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expect(cache.hasData(dummyKey)).toBe(true);
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});
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it('returns false for missing data', () => {
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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expect(cache.hasData(dummyKey)).toBe(false);
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});
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});
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describe('remove', () => {
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it('removes data from cache', () => {
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cache.internalStorage[dummyKey] = dummyValue;
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cache.remove(dummyKey);
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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});
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it('does nothing for missing data', () => {
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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cache.remove(dummyKey);
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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});
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it('does not remove wrong data', () => {
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cache.internalStorage[dummyKey] = dummyValue;
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cache.internalStorage[dummyKey + dummyKey] = dummyValue + dummyValue;
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cache.remove(dummyKey);
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expect(cache.internalStorage[dummyKey]).toBe(undefined);
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expect(cache.internalStorage[dummyKey + dummyKey]).toBe(dummyValue + dummyValue);
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});
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});
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});
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