73 lines
2.4 KiB
Nim
73 lines
2.4 KiB
Nim
# Copyright (c) 2019-2022 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license: http://opensource.org/licenses/MIT
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# * Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.used.}
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import
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unittest2, random,
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../stew/[varints, byteutils]
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const edgeValues = {
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0'u64 : "00",
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(1'u64 shl 7) - 1'u64 : "7f",
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(1'u64 shl 7) : "8001",
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(1'u64 shl 14) - 1'u64 : "ff7f",
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(1'u64 shl 14) : "808001",
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(1'u64 shl 21) - 1'u64 : "ffff7f",
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(1'u64 shl 21) : "80808001",
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(1'u64 shl 28) - 1'u64 : "ffffff7f",
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(1'u64 shl 28) : "8080808001",
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(1'u64 shl 35) - 1'u64 : "ffffffff7f",
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(1'u64 shl 35) : "808080808001",
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(1'u64 shl 42) - 1'u64 : "ffffffffff7f",
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(1'u64 shl 42) : "80808080808001",
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(1'u64 shl 49) - 1'u64 : "ffffffffffff7f",
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(1'u64 shl 49) : "8080808080808001",
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(1'u64 shl 56) - 1'u64 : "ffffffffffffff7f",
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(1'u64 shl 56) : "808080808080808001",
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(1'u64 shl 63) - 1'u64 : "ffffffffffffffff7f",
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uint64(1'u64 shl 63) : "80808080808080808001",
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0xFFFF_FFFF_FFFF_FFFF'u64 : "ffffffffffffffffff01"
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}
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suite "varints":
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template roundtipTest(val) =
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var s {.inject.}: VarintBuffer
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s.writeVarint val
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var roundtripVal: type(val)
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let bytesRead = readVarint(s.bytes, roundtripVal)
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check:
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val == roundtripVal
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bytesRead == s.totalBytesWritten
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bytesRead == vsizeof(val)
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test "[ProtoBuf] Success edge cases test":
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for pair in edgeValues:
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let (val, hex) = pair
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roundtipTest val
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check:
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s.totalBytesWritten == hex.len div 2
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toHex(s.writtenBytes) == hex
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toHex(val.varintBytes) == hex
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test "[ProtoBuf] random 64-bit values":
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for i in 0..10000:
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# TODO nim 1.0 random casts limits to int, so anything bigger will crash
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# * sigh *
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let v = rand(0'u64 .. cast[uint64](int.high))
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roundtipTest v
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test "[ProtoBuf] random 32-bit values":
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for i in 0..10000:
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# TODO nim 1.0 random casts limits to int, so anything bigger will crash
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# * sigh *
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let v = rand(0'u32 .. cast[uint32](int.high))
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roundtipTest v
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# TODO Migrate the rest of the LibP2P test cases
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