[PATCH 5 of 5] Tests: guarded ssl_certificates.t for old OpenSSL versions

[Maxim Dounin]

# HG changeset patch
# User Maxim Dounin <mdounin at mdounin.ru>
# Date 1714527846 -10800
#      Wed May 01 04:44:06 2024 +0300
# Node ID 1d4089d4b7b14afef191fb6b28152f841d3eb2be
# Parent  aaba4e48aa7d327e49dee8cca02cd1a7b9b6e0c3
Tests: guarded ssl_certificates.t for old OpenSSL versions.

The ssl_certificates.t test uses ECDSA ciphers, which are only available
starting with OpenSSL 0.9.8b.  In previous versions, notably in OpenSSL 0.9.8
and 0.9.8a, only non-standard example ciphers where available, which cannot
be used with any other clients.

The same applies to ssl_stapling.t, but it also requires the certificate
status TLS extension, which is only available since OpenSSL 0.9.8h, and
therefore no additional checks are needed.

diff --git a/ssl_certificates.t b/ssl_certificates.t
--- a/ssl_certificates.t
+++ b/ssl_certificates.t
@@ -25,7 +25,10 @@ select STDOUT; $| = 1;
 my $t = Test::Nginx->new()->has(qw/http http_ssl socket_ssl/)
 	->has_daemon('openssl');
 
-plan(skip_all => 'no multiple certificates') if $t->has_module('BoringSSL');
+plan(skip_all => 'no multiple certificates')
+	if $t->has_module('BoringSSL');
+plan(skip_all => 'no ECDSA support')
+	if $t->has_module('OpenSSL') and not $t->has_feature('openssl:0.9.8b');
 
 $t->write_file_expand('nginx.conf', <<'EOF');