text: const sm4 = require('../src/index').sm4
  const msg = 'hello world! 我是 juneandgreen.'
  const input = [0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10]
  const output_1 = [0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e, 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46, 0x00, 0x2a, 0x8a, 0x4e, 0xfa, 0x86, 0x3c, 0xca, 0xd0, 0x24, 0xac, 0x03, 0x00, 0xbb, 0x40, 0xd2]
  const output_2 = [0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e, 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46]
  const output_3 = [0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e, 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46, 0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e, 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46, 0x00, 0x2a, 0x8a, 0x4e, 0xfa, 0x86, 0x3c, 0xca, 0xd0, 0x24, 0xac, 0x03, 0x00, 0xbb, 0x40, 0xd2]
  const outputHexStr_1 = '681edf34d206965e86b3e94f536e4246002a8a4efa863ccad024ac0300bb40d2'
  const outputHexStr_2 = '681edf34d206965e86b3e94f536e4246'
  const outputHexStr_3 = '681edf34d206965e86b3e94f536e4246681edf34d206965e86b3e94f536e4246002a8a4efa863ccad024ac0300bb40d2'
  const input2 = [0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x21, 0x20, 0xe6, 0x88, 0x91, 0xe6, 0x98, 0xaf, 0x20, 0x6a, 0x75, 0x6e, 0x65, 0x61, 0x6e, 0x64, 0x67, 0x72, 0x65, 0x65, 0x6e, 0x2e]
  const output2HexStr = '0e395deb10f6e8a17e17823e1fd9bd98a1bff1df508b5b8a1efb79ec633d1bb129432ac1b74972dbe97bab04f024e89c'
  const output3HexStr = '0d6cfa73c823b2ac0d6a92c564171892000fbea90be7a4d440bc58a9044fcb5f3d1615d91a6dbfb4dfb0c6915071527b'
  const output2 = [0x0e, 0x39, 0x5d, 0xeb, 0x10, 0xf6, 0xe8, 0xa1, 0x7e, 0x17, 0x82, 0x3e, 0x1f, 0xd9, 0xbd, 0x98, 0xa1, 0xbf, 0xf1, 0xdf, 0x50, 0x8b, 0x5b, 0x8a, 0x1e, 0xfb, 0x79, 0xec, 0x63, 0x3d, 0x1b, 0xb1, 0x29, 0x43, 0x2a, 0xc1, 0xb7, 0x49, 0x72, 0xdb, 0xe9, 0x7b, 0xab, 0x04, 0xf0, 0x24, 0xe8, 0x9c]
  const iv = [0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef]
  const ivHexStr = 'fedcba98765432100123456789abcdef'
  const key = [0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10]
  const keyHexStr = '0123456789abcdeffedcba9876543210'
  
  test('sm4: encrypt a group', () => {
      expect(sm4.encrypt(input, key)).toBe(outputHexStr_1)
      expect(sm4.encrypt(input, key, {output: 'array'})).toEqual(output_1)
      expect(sm4.encrypt(input, key, {padding: 'none'})).toBe(outputHexStr_2)
      expect(sm4.encrypt(input, key, {padding: 'none', output: 'array'})).toEqual(output_2)
      expect(sm4.encrypt(msg, keyHexStr)).toBe(output2HexStr)
      expect(sm4.encrypt(msg, keyHexStr, {output: 'array'})).toEqual(output2)
      expect(sm4.encrypt(msg, keyHexStr, {mode: 'cbc', iv})).toBe(output3HexStr)
      expect(sm4.encrypt(msg, keyHexStr, {mode: 'cbc', iv: ivHexStr})).toBe(output3HexStr)
      expect(sm4.encrypt(input2, keyHexStr)).toBe(output2HexStr)
      expect(sm4.encrypt(input2, keyHexStr, {output: 'array'})).toEqual(output2)
  })
  
  test('sm4: decrypt a group', () => {
      expect(sm4.decrypt(outputHexStr_1, key, {output: 'array'})).toEqual(input)
      expect(sm4.decrypt(output_1, key, {output: 'array'})).toEqual(input)
      expect(sm4.decrypt(outputHexStr_2, key, {padding: 'none', output: 'array'})).toEqual(input)
      expect(sm4.decrypt(output_2, key, {padding: 'none', output: 'array'})).toEqual(input)
      expect(sm4.decrypt(output2HexStr, keyHexStr)).toBe(msg)
      expect(sm4.decrypt(output2, keyHexStr)).toBe(msg)
      expect(sm4.decrypt(output2HexStr, keyHexStr, {output: 'array'})).toEqual(input2)
      expect(sm4.decrypt(output3HexStr, keyHexStr, {mode: 'cbc', iv})).toBe(msg)
      expect(sm4.decrypt(output3HexStr, keyHexStr, {mode: 'cbc', iv: ivHexStr})).toBe(msg)
      expect(sm4.decrypt(output2, keyHexStr, {output: 'array'})).toEqual(input2)
  })
  
  test('sm4: encrypt several groups', () => {
      expect(sm4.encrypt([...input, ...input], key)).toBe(outputHexStr_3)
      expect(sm4.encrypt([...input, ...input], key, {output: 'array'})).toEqual(output_3)
      expect(sm4.encrypt([...input, ...input], key, {padding: 'none'})).toBe(outputHexStr_2 + outputHexStr_2)
      expect(sm4.encrypt([...input, ...input], key, {padding: 'none', output: 'array'})).toEqual([...output_2, ...output_2])
  })
  
  test('sm4: decrypt several groups', () => {
      expect(sm4.decrypt(outputHexStr_3, key, {output: 'array'})).toEqual([...input, ...input])
      expect(sm4.decrypt(output_3, key, {output: 'array'})).toEqual([...input, ...input])
      expect(sm4.decrypt(outputHexStr_2 + outputHexStr_2, key, {padding: 'none', output: 'array'})).toEqual([...input, ...input])
      expect(sm4.decrypt([...output_2, ...output_2], key, {padding: 'none', output: 'array'})).toEqual([...input, ...input])
  })
  
  test('sm4: encrypt unicode string', () => {
      expect(sm4.encrypt('🇨🇳𠮷😀😃😄😁😆😅', keyHexStr)).toBe('a0b1aac2e6db928ddfc8a081a6661d0452b44e5720db106714ffc8cbee29bcf7d96b4d64bffd07553e6a2ee096523b7f')
      expect(sm4.decrypt('a0b1aac2e6db928ddfc8a081a6661d0452b44e5720db106714ffc8cbee29bcf7d96b4d64bffd07553e6a2ee096523b7f', keyHexStr)).toBe('🇨🇳𠮷😀😃😄😁😆😅')
  })
  
  test('sm4: encrypt a group whit 1000000 times', () => {
      let temp = input
      for (let i = 0; i < 1000000; i++) {
          temp = sm4.encrypt(temp, key, {padding: 'none', output: 'array'})
      }
      expect(temp).toEqual([0x59, 0x52, 0x98, 0xc7, 0xc6, 0xfd, 0x27, 0x1f, 0x04, 0x02, 0xf8, 0x04, 0xc3, 0x3d, 0x3f, 0x66])
  })
  