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test-wrap-argv: print diff instead of the incorrectly wrapped file

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Commit c9c03ea stopped creating an intermediate file during syntax-check
to save on execution time. It also switched to outputting the whole
incorrectly wrapped file instead of a diff needed to fix it.

Feed the newly wrapped file to diff via a pipe.

Note that fixing it by running test-wrap-argv.pl --in-place or
the unit test with VIR_TEST_REGENERATE_OUTPUT is easier.
This commit is contained in:
Ján Tomko 2016-07-11 16:15:02 +02:00
parent cc04181a7c
commit a5dace965a
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
tests/test-wrap-argv.pl
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@ -89,7 +89,10 @@ sub rewrap {
my $nl = join('', @lines);
my $ol = join('', @orig_lines);
unless ($nl eq $ol) {
print STDERR $ol;
open DIFF, "| diff -u $file -" or die "cannot run diff: $!";
print DIFF $nl;
close DIFF;
print STDERR "Incorrect line wrapping in $file\n";
print STDERR "Use test-wrap-argv.pl to wrap test data files\n";
return -1;