[nginx-tests] Tests: fixed h3_limit_req.t spurious failures.

[Maxim Dounin]

details:   http://freenginx.org/hg/nginx-tests/rev/1867428f1673
branches:  
changeset: 1951:1867428f1673
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Thu Mar 14 02:25:49 2024 +0300
description:
Tests: fixed h3_limit_req.t spurious failures.

In the "reset stream - cancellation" test, HTTP/3 stream is closed without
sending the request body when the request is waiting in the limit_req
module, and this results in error 444.  However, when the request is received
with some minor delay due to system load, it is not delayed by limit_req,
and the stream is closed during reading the request body, which results
in error 400 instead, breaking the test.

Fix is to introduce yet another request before the "reset stream" test,
so the stream in question is always delayed by limit_req.

diffstat:

 h3_limit_req.t |  10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diffs (27 lines):

diff --git a/h3_limit_req.t b/h3_limit_req.t
--- a/h3_limit_req.t
+++ b/h3_limit_req.t
@@ -24,7 +24,7 @@ select STDERR; $| = 1;
 select STDOUT; $| = 1;
 
 my $t = Test::Nginx->new()->has(qw/http http_v3 proxy limit_req cryptx/)
-	->has_daemon('openssl')->plan(6);
+	->has_daemon('openssl')->plan(7);
 
 $t->write_file_expand('nginx.conf', <<'EOF');
 
@@ -131,6 +131,14 @@ select undef, undef, undef, 1.1;
 ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
 is($frame->{headers}->{':status'}, 200, 'request body - limit req - empty');
 
+# another request
+
+$sid = $s->new_stream({ path => '/' });
+$frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
+
+($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
+is($frame->{headers}->{':status'}, '200', 'request body - limit req - next');
+
 # detect RESET_STREAM while request is delayed
 
 $s = Test::Nginx::HTTP3->new();