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import { describe, expect, it, jest } from '@jest/globals';
import { LocalStorage } from './local-storage';
describe('LocalStorage', () => {
it('should return an undefined value when the key is not set', () => {
localStorage.clear();
expect(LocalStorage.get('et')).toBeUndefined();
});
it('can set a new key and return its value', () => {
localStorage.clear();
const key = 'laudantium';
const value = 'laborum';
LocalStorage.set(key, value);
expect(LocalStorage.get(key)).toBe(value);
});
it('can update an existing key', () => {
localStorage.clear();
const key = 'officiis';
const value = 'saepe';
LocalStorage.set(key, value);
const newValue = 'itaque';
LocalStorage.set(key, newValue);
expect(LocalStorage.get(key)).toBe(newValue);
});
it('can remove a key from the storage', () => {
localStorage.clear();
const key1 = 'ab';
const value1 = 'ipsum';
const key2 = 'suscipit';
const value2 = 'autem';
LocalStorage.set(key1, value1);
LocalStorage.set(key2, value2);
LocalStorage.remove(key1);
expect(LocalStorage.get(key1)).toBeUndefined();
expect(LocalStorage.get(key2)).toBe(value2);
});
it('can clear the storage', () => {
localStorage.clear();
const key1 = 'velit';
const value1 = 'rerum';
const key2 = 'enim';
const value2 = 'consequatur';
LocalStorage.set(key1, value1);
LocalStorage.set(key2, value2);
LocalStorage.clear();
expect(LocalStorage.get(key1)).toBeUndefined();
expect(LocalStorage.get(key2)).toBeUndefined();
});
it('return undefined and log and error when the value is invalid', () => {
const spy = jest.spyOn(console, 'error');
const key = 'dolor';
const value = 'possimus';
// The value is not stringified
localStorage.setItem(key, value);
expect(LocalStorage.get(key)).toBeUndefined();
expect(spy).toHaveBeenCalled();
});
it('does not set invalid value and log the error', () => {
const spy = jest.spyOn(console, 'error');
const key = 'voluptatibus';
// eslint-disable-next-line @typescript-eslint/no-magic-numbers
const value = BigInt(1234567890);
LocalStorage.set(key, value);
expect(LocalStorage.get(key)).toBeUndefined();
expect(spy).toHaveBeenCalled();
});
});
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