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blog/src/features/Web3/lib/truncateAddress/truncateAddress.test.ts

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TypeScript

import { test, expect } from 'vitest'
import { truncateAddress } from './truncateAddress'
test('truncateAddress', () => {
const address = '0x1234567890abcdef'
const truncated = truncateAddress(address)
expect(truncated.startsWith('0x1234')).toBe(true)
expect(truncated.endsWith('cdef')).toBe(true)
expect(truncated).toBe('0x1234...cdef')
})