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Make unused code into actual test, replace echo with doassert (#13952)

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This commit is contained in:
Juan Carlos
2020-04-11 17:16:26 -03:00
committed by GitHub
parent 5f6962337d
commit 7238b968f3
2 changed files with 84 additions and 33 deletions
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33
lib/std/varints.nim
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@@ -119,36 +119,3 @@ proc encodeZigzag*(x: int64): uint64 {.inline.} =
proc decodeZigzag*(x: uint64): int64 {.inline.} =
let casted = cast[int64](x)
result = (`shr`(casted, 1)) xor (-(casted and 1))
when isMainModule:
#import random
var dest: array[50, byte]
var got: uint64
for test in [0xFFFF_FFFF_FFFFF_FFFFu64, 77u64, 0u64, 10_000_000u64, uint64(high(int64)),
uint64(high(int32)),uint64(low(int32)),uint64(low(int64))]:
let wrLen = writeVu64(dest, test)
let rdLen = readVu64(dest, got)
assert wrLen == rdLen
echo(if got == test: "YES" else: "NO")
echo "number is ", got
if encodeZigzag(decodeZigzag(test)) != test:
echo "Failure for ", test, " ", encodeZigzag(decodeZigzag(test)), " ", decodeZigzag(test)
for test in 0u64..300u64:
let wrLen = writeVu64(dest, test)
let rdLen = readVu64(dest, got)
assert wrLen == rdLen
if got != test:
echo "BUG! expected: ", test, " got: ", got, " z0: ", dest[0]
# check this also works for floats:
for test in [0.0, 0.1, 2.0, +Inf, Nan, NegInf]:
let t = cast[uint64](test)
let wrLenB = writeVu64(dest, t)
let rdLenB = readVu64(dest, got)
assert wrLenB == rdLenB
echo rdLenB
echo(if cast[float64](got) == test: "YES" else: "NO")