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# Tester for nimsuggest.
# Every test file can have a #[!]# comment that is deleted from the input
# before 'nimsuggest' is invoked to ensure this token doesn't make a
# crucial difference for Nim's parser.
import os, osproc, strutils, streams, re
type
Test = object
cmd: string
script: seq[(string, string)]
const
curDir = when defined(windows): "" else: "./"
DummyEof = "!EOF!"
proc parseTest(filename: string): Test =
const cursorMarker = "#[!]#"
let nimsug = curDir & addFileExt("nimsuggest", ExeExt)
let dest = getTempDir() / extractFilename(filename)
result.cmd = nimsug & " --tester " & dest
result.script = @[]
var tmp = open(dest, fmWrite)
var specSection = 0
var markers = newSeq[string]()
var i = 1
for x in lines(filename):
let marker = x.find(cursorMarker)+1
if marker > 0:
markers.add "\"" & filename & "\";\"" & dest & "\":" & $i & ":" & $marker
tmp.writeLine x.replace(cursorMarker, "")
else:
tmp.writeLine x
if x.contains("""""""""):
inc specSection
elif specSection == 1:
if x.startsWith("$nimsuggest"):
result.cmd = x % ["nimsuggest", nimsug, "file", filename]
elif x.startsWith(">"):
# since 'markers' here are not complete yet, we do the $substitutions
# afterwards
result.script.add((x.substr(1), ""))
else:
# expected output line:
let x = x % ["file", filename]
result.script[^1][1].add x.replace(";;", "\t") & '\L'
inc i
tmp.close()
# now that we know the markers, substitute them:
for a in mitems(result.script):
a[0] = a[0] % markers
proc smartCompare(pattern, x: string): bool =
if pattern.contains('*'):
result = match(x, re(escapeRe(pattern).replace("\\x2A","(.*)"), {}))
proc runTest(filename: string): int =
let s = parseTest filename
let cl = parseCmdLine(s.cmd)
var p = startProcess(command=cl[0], args=cl[1 .. ^1],
options={poStdErrToStdOut, poUsePath,
poInteractive, poDemon})
let outp = p.outputStream
let inp = p.inputStream
var report = ""
var a = newStringOfCap(120)
try:
# read and ignore anything nimsuggest says at startup:
while outp.readLine(a):
if a == DummyEof: break
for req, resp in items(s.script):
inp.writeLine(req)
inp.flush()
var answer = ""
while outp.readLine(a):
if a == DummyEof: break
answer.add a
answer.add '\L'
if resp != answer and not smartCompare(resp, answer):
report.add "\nTest failed: " & filename
report.add "\n Expected: " & resp
report.add "\n But got: " & answer
finally:
inp.writeLine("quit")
inp.flush()
close(p)
if report.len > 0:
echo report
result = report.len
proc main() =
var failures = 0
for x in walkFiles(getAppDir() / "tests/t*.nim"):
echo "Test ", x
failures += runTest(expandFilename(x))
if failures > 0:
quit 1
main()
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