133 lines
4.5 KiB
Nim
133 lines
4.5 KiB
Nim
import unittest2
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import ../stew/base58
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when defined(nimHasUsed): {.used.}
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func hexToBytes*(a: string, result: var openArray[byte]) =
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doAssert(len(a) == 2 * len(result))
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var i = 0
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var k = 0
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var r = 0
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if len(a) > 0:
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while i < len(a):
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let c = a[i]
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if i != 0 and i %% 2 == 0:
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result[k] = r.byte
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r = 0
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inc(k)
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else:
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r = r shl 4
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case c
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of 'a'..'f':
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r = r or (10 + ord(c) - ord('a'))
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of 'A'..'F':
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r = r or (10 + ord(c) - ord('A'))
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of '0'..'9':
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r = r or (ord(c) - ord('0'))
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else:
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doAssert(false)
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inc(i)
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result[k] = r.byte
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func fromHex*(a: string): seq[byte] =
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doAssert(len(a) %% 2 == 0)
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if len(a) == 0:
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result = newSeq[byte]()
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else:
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result = newSeq[byte](len(a) div 2)
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hexToBytes(a, result)
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const TestVectors = [
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["", ""],
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["61", "2g"],
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["626262", "a3gV"],
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["636363", "aPEr"],
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["73696d706c792061206c6f6e6720737472696e67", "2cFupjhnEsSn59qHXstmK2ffpLv2"],
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["00eb15231dfceb60925886b67d065299925915aeb172c06647", "1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L"],
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["516b6fcd0f", "ABnLTmg"],
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["bf4f89001e670274dd", "3SEo3LWLoPntC"],
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["572e4794", "3EFU7m"],
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["ecac89cad93923c02321", "EJDM8drfXA6uyA"],
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["10c8511e", "Rt5zm"],
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["00000000000000000000", "1111111111"],
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["000111d38e5fc9071ffcd20b4a763cc9ae4f252bb4e48fd66a835e252ada93ff480d6dd43dc62a641155a5", "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"],
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["000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff", "1cWB5HCBdLjAuqGGReWE3R3CguuwSjw6RHn39s2yuDRTS5NsBgNiFpWgAnEx6VQi8csexkgYw3mdYrMHr8x9i7aEwP8kZ7vccXWqKDvGv3u1GxFKPuAkn8JCPPGDMf3vMMnbzm6Nh9zh1gcNsMvH3ZNLmP5fSG6DGbbi2tuwMWPthr4boWwCxf7ewSgNQeacyozhKDDQQ1qL5fQFUW52QKUZDZ5fw3KXNQJMcNTcaB723LchjeKun7MuGW5qyCBZYzA1KjofN1gYBV3NqyhQJ3Ns746GNuf9N2pQPmHz4xpnSrrfCvy6TVVz5d4PdrjeshsWQwpZsZGzvbdAdN8MKV5QsBDY"]
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]
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suite "BASE58 encoding test suite":
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test "Empty seq/string test":
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var a = Base58.encode([])
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check len(a) == 0
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var b = Base58.decode("")
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check len(b) == 0
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test "Zero test":
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var s = newString(256)
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for i in 0..255:
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s[i] = '1'
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var buffer: array[256, byte]
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for i in 0..255:
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var a = Base58.encode(buffer.toOpenArray(0, i))
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check a == s[0..i]
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var b = Base58.decode(a)
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check b == buffer[0..i]
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test "Leading zero test":
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var buffer: array[256, byte]
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for i in 0..255:
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buffer[255] = byte(i)
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var a = Base58.encode(buffer)
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var b = Base58.decode(a)
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check:
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equalMem(addr buffer[0], addr b[0], 256) == true
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test "Small amount of bytes test":
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var buffer1: array[1, byte]
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var buffer2: array[2, byte]
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for i in 0..255:
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buffer1[0] = byte(i)
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var enc = Base58.encode(buffer1)
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var dec = Base58.decode(enc)
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check:
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len(dec) == 1
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dec[0] == buffer1[0]
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for i in 0..255:
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for k in 0..255:
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buffer2[0] = byte(i)
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buffer2[1] = byte(k)
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var enc = Base58.encode(buffer2)
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var dec = Base58.decode(enc)
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check:
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len(dec) == 2
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dec[0] == buffer2[0]
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dec[1] == buffer2[1]
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test "Test Vectors test":
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for item in TestVectors:
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var a = fromHex(item[0])
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var enc = Base58.encode(a)
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var dec = Base58.decode(item[1])
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check:
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enc == item[1]
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dec == a
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test "Buffer Overrun test":
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var encres = ""
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var encsize = 0
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var decres: seq[byte] = @[]
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var decsize = 0
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check:
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Base58.encode([0'u8], encres, encsize) == Base58Status.Overrun
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encsize == 1
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Base58.decode("1", decres, decsize) == Base58Status.Overrun
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decsize == 5
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test "Incorrect test":
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var decres = newSeq[byte](10)
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var decsize = 0
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check:
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Base58.decode("l", decres, decsize) == Base58Status.Incorrect
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decsize == 0
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Base58.decode("2l", decres, decsize) == Base58Status.Incorrect
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decsize == 0
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Base58.decode("O", decres, decsize) == Base58Status.Incorrect
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decsize == 0
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Base58.decode("2O", decres, decsize) == Base58Status.Incorrect
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decsize == 0
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