mirror of https://github.com/vacp2p/nim-libp2p.git
464 lines
16 KiB
Nim
464 lines
16 KiB
Nim
import unittest2
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import ../libp2p/varint
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when defined(nimHasUsed): {.used.}
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const PBedgeValues = [
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0'u64, (1'u64 shl 7) - 1'u64,
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(1'u64 shl 7), (1'u64 shl 14) - 1'u64,
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(1'u64 shl 14), (1'u64 shl 21) - 1'u64,
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(1'u64 shl 21), (1'u64 shl 28) - 1'u64,
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(1'u64 shl 28), (1'u64 shl 35) - 1'u64,
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(1'u64 shl 35), (1'u64 shl 42) - 1'u64,
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(1'u64 shl 42), (1'u64 shl 49) - 1'u64,
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(1'u64 shl 49), (1'u64 shl 56) - 1'u64,
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(1'u64 shl 56), (1'u64 shl 63) - 1'u64,
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(1'u64 shl 63), 0xFFFF_FFFF_FFFF_FFFF'u64
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]
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const PBPositiveSignedEdgeValues = [
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0'u64, 0x3F'u64,
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0x40'u64, 0x1FFF'u64,
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0x2000'u64, 0xFFFFF'u64,
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0x100000'u64, 0x7FFFFFF'u64,
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0x8000000'u64, 0x3FFFFFFFF'u64,
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0x400000000'u64, 0x1FFFFFFFFFF'u64,
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0x20000000000'u64, 0xFFFFFFFFFFFF'u64,
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0x1000000000000'u64, 0x7FFFFFFFFFFFFF'u64,
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0x80000000000000'u64, 0x3FFFFFFFFFFFFFFF'u64,
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0x4000000000000000'u64, 0x7FFFFFFFFFFFFFFF'u64
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]
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const PBNegativeSignedEdgeValues = [
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0x0000000000000000'u64, 0xFFFFFFFFFFFFFFC0'u64,
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0xFFFFFFFFFFFFFFBF'u64, 0xFFFFFFFFFFFFE000'u64,
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0xFFFFFFFFFFFFDFFF'u64, 0xFFFFFFFFFFF00000'u64,
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0xFFFFFFFFFFEFFFFF'u64, 0xFFFFFFFFF8000000'u64,
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0xFFFFFFFFF7FFFFFF'u64, 0xFFFFFFFC00000000'u64,
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0xFFFFFFFBFFFFFFFF'u64, 0xFFFFFE0000000000'u64,
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0xFFFFFDFFFFFFFFFF'u64, 0xFFFF000000000000'u64,
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0xFFFEFFFFFFFFFFFF'u64, 0xFF80000000000000'u64,
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0xFF7FFFFFFFFFFFFF'u64, 0xC000000000000000'u64,
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0xBFFFFFFFFFFFFFFF'u64, 0x8000000000000000'u64
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]
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const PBPositiveSignedZigZagEdgeExpects = [
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"00", "7E",
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"8001", "FE7F",
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"808001", "FEFF7F",
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"80808001", "FEFFFF7F",
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"8080808001", "FEFFFFFF7F",
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"808080808001", "FEFFFFFFFF7F",
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"80808080808001", "FEFFFFFFFFFF7F",
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"8080808080808001", "FEFFFFFFFFFFFF7F",
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"808080808080808001", "FEFFFFFFFFFFFFFF7F",
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"80808080808080808001", "FEFFFFFFFFFFFFFFFF01"
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]
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const PBNegativeSignedZigZagEdgeExpects = [
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"00", "7F",
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"8101", "FF7F",
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"818001", "FFFF7F",
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"81808001", "FFFFFF7F",
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"8180808001", "FFFFFFFF7F",
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"818080808001", "FFFFFFFFFF7F",
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"81808080808001", "FFFFFFFFFFFF7F",
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"8180808080808001", "FFFFFFFFFFFFFF7F",
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"818080808080808001", "FFFFFFFFFFFFFFFF7F",
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"81808080808080808001", "FFFFFFFFFFFFFFFFFF01",
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]
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const PBPositiveSignedEdgeExpects = [
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"00", "3F",
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"40", "FF3F",
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"8040", "FFFF3F",
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"808040", "FFFFFF3F",
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"80808040", "FFFFFFFF3F",
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"8080808040", "FFFFFFFFFF3F",
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"808080808040", "FFFFFFFFFFFF3F",
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"80808080808040", "FFFFFFFFFFFFFF3F",
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"8080808080808040", "FFFFFFFFFFFFFFFF3F",
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"808080808080808040", "FFFFFFFFFFFFFFFF7F"
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]
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const PBNegativeSignedEdgeExpects = [
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"00", "C0FFFFFFFFFFFFFFFF01",
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"BFFFFFFFFFFFFFFFFF01", "80C0FFFFFFFFFFFFFF01",
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"FFBFFFFFFFFFFFFFFF01", "8080C0FFFFFFFFFFFF01",
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"FFFFBFFFFFFFFFFFFF01", "808080C0FFFFFFFFFF01",
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"FFFFFFBFFFFFFFFFFF01", "80808080C0FFFFFFFF01",
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"FFFFFFFFBFFFFFFFFF01", "8080808080C0FFFFFF01",
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"FFFFFFFFFFBFFFFFFF01", "808080808080C0FFFF01",
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"FFFFFFFFFFFFBFFFFF01", "80808080808080C0FF01",
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"FFFFFFFFFFFFFFBFFF01", "8080808080808080C001",
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"FFFFFFFFFFFFFFFFBF01", "80808080808080808001"
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]
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const PBedgeExpects = [
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"00", "7F",
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"8001", "FF7F",
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"808001", "FFFF7F",
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"80808001", "FFFFFF7F",
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"8080808001", "FFFFFFFF7F",
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"808080808001", "FFFFFFFFFF7F",
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"80808080808001", "FFFFFFFFFFFF7F",
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"8080808080808001", "FFFFFFFFFFFFFF7F",
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"808080808080808001", "FFFFFFFFFFFFFFFF7F",
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"80808080808080808001", "FFFFFFFFFFFFFFFFFF01"
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]
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const PBedgeSizes = [
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1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10
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]
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const PBEdgeSignedPositiveZigZagSizes = [
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1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10
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]
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const PBEdgeSignedNegativeZigZagSizes = [
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1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10
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]
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const PBEdgeSignedPositiveSizes = [
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1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9
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]
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const PBEdgeSignedNegativeSizes = [
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1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
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]
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const LPedgeValues = [
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0'u64, (1'u64 shl 7) - 1'u64,
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(1'u64 shl 7), (1'u64 shl 14) - 1'u64,
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(1'u64 shl 14), (1'u64 shl 21) - 1'u64,
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(1'u64 shl 21), (1'u64 shl 28) - 1'u64,
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(1'u64 shl 28), (1'u64 shl 35) - 1'u64,
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(1'u64 shl 35), (1'u64 shl 42) - 1'u64,
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(1'u64 shl 42), (1'u64 shl 49) - 1'u64,
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(1'u64 shl 49), (1'u64 shl 56) - 1'u64,
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(1'u64 shl 56), (1'u64 shl 63) - 1'u64,
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]
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const LPedgeSizes = [
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1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9
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]
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const LPedgeExpects = [
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"00", "7F",
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"8001", "FF7F",
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"808001", "FFFF7F",
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"80808001", "FFFFFF7F",
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"8080808001", "FFFFFFFF7F",
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"808080808001", "FFFFFFFFFF7F",
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"80808080808001", "FFFFFFFFFFFF7F",
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"8080808080808001", "FFFFFFFFFFFFFF7F",
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"808080808080808001", "FFFFFFFFFFFFFFFF7F",
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]
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proc hexChar*(c: byte, lowercase: bool = false): string =
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var alpha: int
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if lowercase:
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alpha = ord('a')
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else:
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alpha = ord('A')
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result = newString(2)
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let t1 = ord(c) shr 4
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let t0 = ord(c) and 0x0F
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case t1
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of 0..9: result[0] = chr(t1 + ord('0'))
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else: result[0] = chr(t1 - 10 + alpha)
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case t0:
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of 0..9: result[1] = chr(t0 + ord('0'))
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else: result[1] = chr(t0 - 10 + alpha)
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proc toHex*(a: openArray[byte], lowercase: bool = false): string =
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result = ""
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for i in a:
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result = result & hexChar(i, lowercase)
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suite "Variable integer test suite":
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test "vsizeof() edge cases test":
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for i in 0 ..< len(PBedgeValues):
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check vsizeof(PBedgeValues[i]) == PBedgeSizes[i]
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for i in 0 ..< len(PBPositiveSignedEdgeValues):
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check:
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vsizeof(hint64(PBPositiveSignedEdgeValues[i])) ==
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PBEdgeSignedPositiveSizes[i]
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vsizeof(zint64(PBPositiveSignedEdgeValues[i])) ==
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PBEdgeSignedPositiveZigZagSizes[i]
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for i in 0 ..< len(PBNegativeSignedEdgeValues):
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check:
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vsizeof(cast[hint64](PBNegativeSignedEdgeValues[i])) ==
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PBEdgeSignedNegativeSizes[i]
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vsizeof(cast[zint64](PBNegativeSignedEdgeValues[i])) ==
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PBEdgeSignedNegativeZigZagSizes[i]
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test "[ProtoBuf] Success edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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var uvalue = 0'u64
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var ivalue = hint64(0)
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var svalue = zint64(0)
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for i in 0 ..< len(PBedgeValues):
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buffer.setLen(PBedgeSizes[i])
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check:
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PB.putUVarint(buffer, length, PBedgeValues[i]).isOk()
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PB.getUVarint(buffer, length, uvalue).isOk()
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uvalue == PBedgeValues[i]
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toHex(buffer) == PBedgeExpects[i]
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for i in 0 ..< len(PBPositiveSignedEdgeValues):
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buffer.setLen(PBEdgeSignedPositiveSizes[i])
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check:
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putSVarint(buffer, length,
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hint64(PBPositiveSignedEdgeValues[i])).isOk()
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getSVarint(buffer, length, ivalue).isOk()
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int64(ivalue) == int64(PBPositiveSignedEdgeValues[i])
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toHex(buffer) == PBPositiveSignedEdgeExpects[i]
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buffer.setLen(PBEdgeSignedPositiveZigZagSizes[i])
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check:
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putSVarint(buffer, length,
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zint64(PBPositiveSignedEdgeValues[i])).isOk()
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getSVarint(buffer, length, svalue).isOk()
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int64(svalue) == int64(PBPositiveSignedEdgeValues[i])
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toHex(buffer) == PBPositiveSignedZigZagEdgeExpects[i]
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for i in 0 ..< len(PBNegativeSignedEdgeValues):
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buffer.setLen(PBEdgeSignedNegativeSizes[i])
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check:
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putSVarint(buffer, length,
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cast[hint64](PBNegativeSignedEdgeValues[i])).isOk()
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getSVarint(buffer, length, ivalue).isOk()
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int64(ivalue) == cast[int64](PBNegativeSignedEdgeValues[i])
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toHex(buffer) == PBNegativeSignedEdgeExpects[i]
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buffer.setLen(PBEdgeSignedNegativeZigZagSizes[i])
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check:
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putSVarint(buffer, length,
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cast[zint64](PBNegativeSignedEdgeValues[i])).isOk()
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getSVarint(buffer, length, svalue).isOk()
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int64(svalue) == cast[int64](PBNegativeSignedEdgeValues[i])
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toHex(buffer) == PBNegativeSignedZigZagEdgeExpects[i]
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test "[ProtoBuf] Buffer Overrun edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(PBedgeValues):
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buffer.setLen(PBedgeSizes[i] - 1)
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let res = PB.putUVarint(buffer, length, PBedgeValues[i])
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check:
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res.error() == VarintError.Overrun
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length == PBedgeSizes[i]
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test "[ProtoBuf] Buffer Incomplete edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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var value = 0'u64
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for i in 0..<len(PBedgeValues):
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buffer.setLen(PBedgeSizes[i])
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check:
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PB.putUVarint(buffer, length, PBedgeValues[i]).isOk()
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buffer.setLen(buffer.high)
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check:
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PB.getUVarint(buffer, length, value).error() == VarintError.Incomplete
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test "[ProtoBuf] Integer Overflow 32bit test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(PBedgeValues):
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if PBedgeSizes[i] > 5:
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var value = 0'u32
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buffer.setLen(PBedgeSizes[i])
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check:
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PB.putUVarint(buffer, length, PBedgeValues[i]).isOk()
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PB.getUVarint(buffer, length, value).error() == VarintError.Overflow
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test "[ProtoBuf] Integer Overflow 64bit test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(PBedgeValues):
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if PBedgeSizes[i] > 9:
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var value = 0'u64
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buffer.setLen(PBedgeSizes[i] + 1)
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check:
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PB.putUVarint(buffer, length, PBedgeValues[i]).isOk()
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buffer[9] = buffer[9] or 0x80'u8
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buffer[10] = 0x01'u8
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check:
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PB.getUVarint(buffer, length, value).error() == VarintError.Overflow
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test "[ProtoBuf] Test vectors":
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# The test vectors which was obtained at:
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# https://github.com/dermesser/integer-encoding-rs/blob/master/src/varint_tests.rs
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# https://github.com/That3Percent/zigzag/blob/master/src/lib.rs
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check:
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PB.encodeVarint(0'u64).get() == @[0x00'u8]
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PB.encodeVarint(0'u32).get() == @[0x00'u8]
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PB.encodeVarint(hint64(0)).get() == @[0x00'u8]
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PB.encodeVarint(hint32(0)).get() == @[0x00'u8]
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PB.encodeVarint(zint64(0)).get() == @[0x00'u8]
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PB.encodeVarint(zint32(0)).get() == @[0x00'u8]
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PB.encodeVarint(zint32(-1)).get() == PB.encodeVarint(1'u32).get()
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PB.encodeVarint(zint64(150)).get( ) == PB.encodeVarint(300'u32).get()
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PB.encodeVarint(zint64(-150)).get() == PB.encodeVarint(299'u32).get()
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PB.encodeVarint(zint32(-2147483648)).get() == PB.encodeVarint(4294967295'u64).get()
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PB.encodeVarint(zint32(2147483647)).get() == PB.encodeVarint(4294967294'u64).get()
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test "[LibP2P] Success edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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var value = 0'u64
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for i in 0..<len(LPedgeValues):
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buffer.setLen(LPedgeSizes[i])
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check:
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LP.putUVarint(buffer, length, LPedgeValues[i]).isOk()
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LP.getUVarint(buffer, length, value).isOk()
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value == LPedgeValues[i]
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toHex(buffer) == LPedgeExpects[i]
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test "[LibP2P] Buffer Overrun edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(LPedgeValues):
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buffer.setLen(PBedgeSizes[i] - 1)
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let res = LP.putUVarint(buffer, length, LPedgeValues[i])
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check:
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res.error() == VarintError.Overrun
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length == LPedgeSizes[i]
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test "[LibP2P] Buffer Incomplete edge cases test":
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var buffer = newSeq[byte]()
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var length = 0
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var value = 0'u64
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for i in 0..<len(LPedgeValues):
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buffer.setLen(LPedgeSizes[i])
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check:
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LP.putUVarint(buffer, length, LPedgeValues[i]).isOk()
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buffer.setLen(buffer.high)
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check:
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LP.getUVarint(buffer, length, value).error() == VarintError.Incomplete
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test "[LibP2P] Integer Overflow 32bit test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(LPedgeValues):
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if LPedgeSizes[i] > 5:
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var value = 0'u32
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buffer.setLen(LPedgeSizes[i])
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check:
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LP.putUVarint(buffer, length, LPedgeValues[i]).isOk()
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LP.getUVarint(buffer, length, value).error() == VarintError.Overflow
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test "[LibP2P] Integer Overflow 64bit test":
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var buffer = newSeq[byte]()
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var length = 0
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for i in 0..<len(LPedgeValues):
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if LPedgeSizes[i] > 8:
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var value = 0'u64
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buffer.setLen(LPedgeSizes[i] + 1)
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check:
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LP.putUVarint(buffer, length, LPedgeValues[i]).isOk()
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buffer[8] = buffer[8] or 0x80'u8
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buffer[9] = 0x01'u8
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check:
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LP.getUVarint(buffer, length, value).error() == VarintError.Overflow
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test "[LibP2P] Over 63bit test":
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var buffer = newSeq[byte](10)
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var length = 0
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check:
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LP.putUVarint(buffer, length,
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0x7FFF_FFFF_FFFF_FFFF'u64).isOk()
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LP.putUVarint(buffer, length,
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0x8000_0000_0000_0000'u64).error() == VarintError.Overflow
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LP.putUVarint(buffer, length,
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0xFFFF_FFFF_FFFF_FFFF'u64).error() == VarintError.Overflow
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test "[LibP2P] Overlong values test":
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const OverlongValues = [
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# Zero bytes at the end
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@[0x81'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8,
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0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8,
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0x80'u8, 0x00'u8],
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# Zero bytes at the middle and zero byte at the end
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@[0x81'u8, 0x80'u8, 0x81'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x00'u8],
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@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x81'u8,
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0x00'u8],
|
|
@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8,
|
|
0x81'u8, 0x00'u8],
|
|
# Zero bytes at the middle and zero bytes at the end
|
|
@[0x81'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x80'u8, 0x00'u8],
|
|
@[0x81'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x80'u8, 0x80'u8, 0x00'u8],
|
|
@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x80'u8, 0x80'u8,
|
|
0x00'u8],
|
|
@[0x81'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x80'u8, 0x81'u8, 0x80'u8,
|
|
0x80'u8, 0x00'u8],
|
|
]
|
|
var length = 0
|
|
var value = 0'u64
|
|
|
|
for item in OverlongValues:
|
|
check:
|
|
LP.getUVarint(item, length, value).error() == VarintError.Overlong
|
|
length == 0
|
|
value == 0
|
|
|
|
# We still should be able to decode zero value
|
|
check:
|
|
LP.getUVarint(@[0x00'u8], length, value).isOk()
|
|
length == 1
|
|
value == 0
|
|
|
|
# But not overlonged zero value
|
|
check:
|
|
LP.getUVarint(@[0x80'u8, 0x00'u8], length, value).error() == VarintError.Overlong
|
|
length == 0
|
|
value == 0
|
|
|
|
test "getVarint/putVarint tests":
|
|
proc `==`(a, b: zint32|hint32): bool =
|
|
int32(a) == int32(b)
|
|
proc `==`(a, b: zint64|hint64): bool =
|
|
int64(a) == int64(b)
|
|
|
|
template varintTest(ttype, vtype, value, expect: untyped) =
|
|
var ovalue: vtype
|
|
var buffer = newSeq[byte](10)
|
|
var length = 0
|
|
check ttype.putVarint(buffer, length, value).isOk()
|
|
buffer.setLen(length)
|
|
check:
|
|
toHex(buffer) == expect
|
|
ttype.getVarint(buffer, length, ovalue).isOk()
|
|
ovalue == value
|
|
|
|
varintTest(PB, uint64, high(uint64), "FFFFFFFFFFFFFFFFFF01")
|
|
varintTest(PB, uint32, high(uint32), "FFFFFFFF0F")
|
|
varintTest(PB, zint64, zint64(high(int64)), "FEFFFFFFFFFFFFFFFF01")
|
|
varintTest(PB, zint32, zint32(high(int32)), "FEFFFFFF0F")
|
|
varintTest(PB, zint64, zint64(low(int64)), "FFFFFFFFFFFFFFFFFF01")
|
|
varintTest(PB, zint32, zint32(low(int32)), "FFFFFFFF0F")
|
|
varintTest(PB, hint64, hint64(high(int64)), "FFFFFFFFFFFFFFFF7F")
|
|
varintTest(PB, hint32, hint32(high(int32)), "FFFFFFFF07")
|
|
varintTest(PB, hint64, hint64(low(int64)), "80808080808080808001")
|
|
varintTest(PB, hint32, hint32(low(int32)), "8080808008")
|
|
varintTest(LP, uint64, uint64(high(int64)), "FFFFFFFFFFFFFFFF7F")
|
|
varintTest(LP, uint32, uint32(high(uint32)), "FFFFFFFF0F")
|
|
varintTest(LP, uint16, uint16(high(uint16)), "FFFF03")
|
|
varintTest(LP, uint8, uint8(high(uint8)), "FF01")
|