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3d2f0e2c7c
* make more standard libraries work with `nimPreviewSlimSystem` * typo * part two * Delete specutils.nim * fixes more tests * more fixes * fixes tests * fixes three more tests * add formatfloat import * fix * last
39 lines
922 B
Nim
39 lines
922 B
Nim
# xxx move to here other tests that belong here; io is a proper module
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import std/os
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from stdtest/specialpaths import buildDir
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import std/[assertions, syncio]
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block: # readChars
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let file = buildDir / "D20201118T205105.txt"
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let s = "he\0l\0lo"
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writeFile(file, s)
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defer: removeFile(file)
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let f = open(file)
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defer: close(f)
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let n = f.getFileInfo.blockSize
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var buf = newString(n)
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template fn =
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let n2 = f.readChars(buf)
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doAssert n2 == s.len
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doAssert buf[0..<n2] == s
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fn()
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setFilePos(f, 0)
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fn()
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block:
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setFilePos(f, 0)
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var s2: string
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let nSmall = 2
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for ai in buf.mitems: ai = '\0'
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var n2s: seq[int]
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while true:
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let n2 = f.readChars(toOpenArray(buf, 0, nSmall-1))
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# xxx: maybe we could support: toOpenArray(buf, 0..nSmall)
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n2s.add n2
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s2.add buf[0..<n2]
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if n2 == 0:
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break
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doAssert n2s == @[2,2,2,1,0]
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doAssert s2 == s
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