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test.js
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test.js
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const {MemoryStorage} = require('./index')
describe('memory storage', () => {
let memoryStorage
beforeEach(() => {
memoryStorage = new MemoryStorage()
})
test('length getter', () => {
expect(memoryStorage.length).toBe(0)
memoryStorage.setItem('foo', 'bar')
memoryStorage.setItem('foo', 'baar')
expect(memoryStorage.length).toBe(1)
})
test('key method', () => {
expect(memoryStorage.key(1)).toBeUndefined()
memoryStorage.setItem(1, 'bar')
expect(memoryStorage.key(0)).toBe('1')
})
test('get/set item', () => {
expect(memoryStorage.key(1)).toBeUndefined()
memoryStorage.setItem(1, 'bar')
memoryStorage.setItem(1, 'baar')
expect(memoryStorage.getItem('1')).toBe('baar')
memoryStorage.setItem('foo', 1)
expect(memoryStorage.getItem('foo')).toBe('1')
})
test('clear', () => {
memoryStorage.setItem(1, 'bar')
memoryStorage.setItem('foo', 1)
expect(memoryStorage.length).toBe(2)
memoryStorage.clear()
expect(memoryStorage.length).toBe(0)
expect(memoryStorage.getItem('foo')).toBeUndefined()
})
})