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nimpretty: test for idempotence; fixes #9483

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This commit is contained in:
Araq 2018-10-24 15:19:29 +02:00
commit 06a6433db7
4 changed files with 28 additions and 8 deletions
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16
nimpretty/tester.nim
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@ -15,12 +15,12 @@ when defined(develop):
else:
const nimp = "nimpretty"
proc test(infile, outfile: string) =
if execShellCmd("$# -o:$# --backup:off $#" % [nimp, outfile, infile]) != 0:
proc test(infile, ext: string) =
if execShellCmd("$# -o:$# --backup:off $#" % [nimp, infile.changeFileExt(ext), infile]) != 0:
quit("FAILURE")
let nimFile = splitFile(infile).name
let expected = dir / "expected" / nimFile & ".nim"
let produced = dir / nimFile & ".pretty"
let produced = dir / nimFile.changeFileExt(ext)
if strip(readFile(expected)) != strip(readFile(produced)):
echo "FAILURE: files differ: ", nimFile
discard execShellCmd("diff -uNdr " & expected & " " & produced)
@ -29,8 +29,12 @@ proc test(infile, outfile: string) =
echo "SUCCESS: files identical: ", nimFile
for t in walkFiles(dir / "*.nim"):
let res = t.changeFileExt("pretty")
test(t, res)
removeFile(res)
test(t, "pretty")
# also test that pretty(pretty(x)) == pretty(x)
test(t.changeFileExt("pretty"), "pretty2")
removeFile(t.changeFileExt("pretty"))
removeFile(t.changeFileExt("pretty2"))
if failures > 0: quit($failures & " failures occurred.")