Tom Lane <tgl@sss.pgh.pa.us> writes:
> Also, while I'm asking for Perl advice: I can see in my editor that
> there's a control-G bell character in that string, but this is far
> from obvious on the web page. I'd kind of like to get the report
> to escapify control characters so that what comes out is more like
>
> # Actual output was "\DRD^G"
> or
> # Actual output was "\\DRD\007"
>
> or some such. Anybody know an easy way to do that in Perl?
I was going to suggest using Test::More's like() function to do the
regex check, but sadly that only escapes things that would break the TAP
stream syntax, not non-printables in general. The next obvious thing is
Data::Dumper with the 'Useqq' option enabled, which makes it use
double-quoted-string escapes (e.g. "\a" for ^G).
The attaced patch does that, and also bumps $Test::Builder::Level so the
diagnostic references the calling line, and uses diag() instad of
note(), so it shows even in non-verbose mode.
- ilmari
--
"A disappointingly low fraction of the human race is,
at any given time, on fire." - Stig Sandbeck Mathisen
From c4541abc826c40e88f729c5a71e5d06a11295aa2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dagfinn=20Ilmari=20Manns=C3=A5ker?= <ilmari@ilmari.org>
Date: Fri, 3 Jan 2020 17:07:10 +0000
Subject: [PATCH] Escape non-printable characters in psql tab-completion TAP
tests
By using Data::Dumper in Useqq mode.
In passing, bump $Test::Builder::Level so the diagnostic references the
calling line, and use diag() instad of note(), so it shows even in
non-verbose mode.
---
src/bin/psql/t/010_tab_completion.pl | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/bin/psql/t/010_tab_completion.pl b/src/bin/psql/t/010_tab_completion.pl
index a02cbd8e47..553288bda7 100644
--- a/src/bin/psql/t/010_tab_completion.pl
+++ b/src/bin/psql/t/010_tab_completion.pl
@@ -5,6 +5,7 @@ use PostgresNode;
use TestLib;
use Test::More;
use IPC::Run qw(pump finish timer);
+use Data::Dumper;
if (!defined($ENV{with_readline}) || $ENV{with_readline} ne 'yes')
{
@@ -52,6 +53,9 @@ sub check_completion
{
my ($send, $pattern, $annotation) = @_;
+ # report test failures from caller location
+ local $Test::Builder::Level = $Test::Builder::Level + 1;
+
# reset output collector
$out = "";
# restart per-command timer
@@ -63,7 +67,9 @@ sub check_completion
my $okay = ($out =~ m/$pattern/ && !$timer->is_expired);
ok($okay, $annotation);
# for debugging, log actual output if it didn't match
- note 'Actual output was "' . $out . "\"\n" if !$okay;
+ local $Data::Dumper::Terse = 1;
+ local $Data::Dumper::Useqq = 1;
+ diag 'Actual output was ' . Dumper($out) . "\n" if !$okay;
return;
}
--
2.22.0