nimpretty/tester.nim


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# Small program that runs the test cases

import strutils, os

const
  dir = "nimpretty/tests/"

var
  failures = 0

proc test(infile, outfile: string) =
  if execShellCmd("nimpretty -o:$2 --backup:off $1" % [infile, outfile]) != 0:
    quit("FAILURE")
  let nimFile = splitFile(infile).name
  let expected = dir / "expected" / nimFile & ".nim"
  let produced = dir / nimFile & ".pretty"
  if strip(readFile(expected)) != strip(readFile(produced)):
    echo "FAILURE: files differ: ", nimFile
    discard execShellCmd("diff -uNdr " & expected & " " & produced)
    failures += 1
  else:
    echo "SUCCESS: files identical: ", nimFile

for t in walkFiles(dir / "*.nim"):
  let res = t.changeFileExt("pretty")
  test(t, res)
  removeFile(res)

if failures > 0: quit($failures & " failures occurred.")