text: const {validateAddress, checksum} = require('../wallet')
  
  test("checksum: should return correct value", () => {
      const expectedChecksum = '4734dce9'
      const versionPayload = "008a06a43f50d6131b4eff177bf3905edc902615f4"
      expect(checksum(versionPayload)).toEqual(expectedChecksum)
  })
  
  test("validateAddress: should return true when receive correct address", () => {
      const address = 'bSLxHcuyxTdt359qFu55AnzTmR5XWghDRWExiADDeFJTCXkPY8uwefvyoViPjV7DQRk4'
      expect(validateAddress(address)).toBe(true)
  })