mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-04-19 22:10:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

fixes #25125 (#25126)

Browse Source 
`strutils.formatSize` returns correct strings from large values close to
`int64.high`.
Round down `bytes` when it is converted to float.

(cherry picked from commit 065c4b443b)
This commit is contained in:
Tomohiro
2025-08-29 04:56:46 +09:00
committed by narimiran
parent 4cbdebcd50
commit 55806c8b36
2 changed files with 82 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
tests/stdlib/tstrutils.nim
View File

@@ -789,12 +789,71 @@ bar
block: # formatSize
disableVm:
when hasWorkingInt64:
doAssert formatSize(1024 * 1024 * 1024 * 2 - 1) == "1.999GiB"
doAssert formatSize(1024 * 1024 * 1024 * 2) == "2GiB"
doAssert formatSize((1'i64 shl 31) + (300'i64 shl 20)) == "2.293GiB" # <=== bug #8231
doAssert formatSize((2.234*1024*1024).int) == "2.234MiB"
doAssert formatSize(int64.high) == "7.999EiB"
doAssert formatSize(int64.high div 2 + 1) == "4EiB"
doAssert formatSize(int64.high div 2) == "3.999EiB"
doAssert formatSize(int64.high div 4 + 1) == "2EiB"
doAssert formatSize(int64.high div 4) == "1.999EiB"
doAssert formatSize(int64.high div 8 + 1) == "1EiB"
doAssert formatSize(int64.high div 8) == "1023.999PiB"
doAssert formatSize(int64.high div 16 + 1) == "512PiB"
doAssert formatSize(int64.high div 16) == "511.999PiB"
doAssert formatSize(0) == "0B"
doAssert formatSize(0, includeSpace = true) == "0 B"
doAssert formatSize(1) == "1B"
doAssert formatSize(2) == "2B"
doAssert formatSize(1022) == "1022B"
doAssert formatSize(1023) == "1023B"
doAssert formatSize(1024) == "1KiB"
doAssert formatSize(1025) == "1.001KiB"
doAssert formatSize(1026) == "1.002KiB"
doAssert formatSize(1024 * 2 - 2) == "1.998KiB"
doAssert formatSize(1024 * 2 - 1) == "1.999KiB"
doAssert formatSize(1024 * 2) == "2KiB"
doAssert formatSize(1024 * 2 + 1) == "2.001KiB"
doAssert formatSize(1024 * 2 + 2) == "2.002KiB"
doAssert formatSize(4096 - 1) == "3.999KiB"
doAssert formatSize(4096) == "4KiB"
doAssert formatSize(4096 + 1) == "4.001KiB"
doAssert formatSize(1024 * 512 - 1) == "511.999KiB"
doAssert formatSize(1024 * 512) == "512KiB"
doAssert formatSize(1024 * 512 + 1) == "512.001KiB"
doAssert formatSize(1024 * 1024 - 2) == "1023.998KiB"
doAssert formatSize(1024 * 1024 - 1) == "1023.999KiB"
doAssert formatSize(1024 * 1024) == "1MiB"
doAssert formatSize(1024 * 1024 + 1) == "1MiB"
doAssert formatSize(1024 * 1024 + 1023) == "1MiB"
doAssert formatSize(1024 * 1024 + 1024) == "1.001MiB"
doAssert formatSize(1024 * 1024 + 1024 * 2) == "1.002MiB"
doAssert formatSize(1024 * 1024 * 2 - 1) == "1.999MiB"
doAssert formatSize(1024 * 1024 * 2) == "2MiB"
doAssert formatSize(1024 * 1024 * 2 + 1) == "2MiB"
doAssert formatSize(1024 * 1024 * 2 + 1024) == "2.001MiB"
doAssert formatSize(1024 * 1024 * 2 + 1024 * 2) == "2.002MiB"
doAssert formatSize(1024 * 1024 * 4 - 1) == "3.999MiB"
doAssert formatSize(1024 * 1024 * 4) == "4MiB"
doAssert formatSize(1024 * (1024 * 4 + 1)) == "4.001MiB"
doAssert formatSize(1024 * 1024 * 512 - 1025) == "511.998MiB"
doAssert formatSize(1024 * 1024 * 512 - 1) == "511.999MiB"
doAssert formatSize(1024 * 1024 * 512) == "512MiB"
doAssert formatSize(1024 * 1024 * 512 + 1) == "512MiB"
doAssert formatSize(1024 * 1024 * 512 + 1024) == "512.001MiB"
doAssert formatSize(1024 * 1024 * 512 + 1024 * 2) == "512.002MiB"
doAssert formatSize(1024 * 1024 * 1024 - 1) == "1023.999MiB"
doAssert formatSize(1024 * 1024 * 1024) == "1GiB"
doAssert formatSize(1024 * 1024 * 1024 + 1) == "1GiB"
doAssert formatSize(1024 * 1024 * 1025) == "1.001GiB"
doAssert formatSize(1024 * 1024 * 1026) == "1.002GiB"
# != 2.234MiB as (2.234 * 1024 * 1024).int.float / (1024 * 1024) = 2.23399...
# and formatSize round down the value
doAssert formatSize((2.234*1024*1024).int) == "2.233MiB"
doAssert formatSize(4096, prefix = bpColloquial, includeSpace = true) == "4 kB"
doAssert formatSize(4096, includeSpace = true) == "4 KiB"
doAssert formatSize(5_378_934, prefix = bpColloquial, decimalSep = ',') == "5,13MB"
# (5378934).float / (1024 * 1024) = 5.12975...
doAssert formatSize(5_378_934, prefix = bpColloquial, decimalSep = ',') == "5,129MB"
block: # formatEng
disableVm: