test: add async example test

.github/workflows/nginx.yaml

@@ -75,6 +75,7 @@ jobs:
         working-directory: nginx
         env:
           TEST_NGINX_GLOBALS: >-
+            load_module ${{ github.workspace }}/nginx/objs/ngx_http_async_module.so;
             load_module ${{ github.workspace }}/nginx/objs/ngx_http_awssigv4_module.so;
             load_module ${{ github.workspace }}/nginx/objs/ngx_http_curl_module.so;
             load_module ${{ github.workspace }}/nginx/objs/ngx_http_upstream_custom_module.so;

examples/config

@@ -15,7 +15,7 @@ if [ $HTTP = YES ]; then
     ngx_rust_target_type=EXAMPLE
     ngx_rust_target_features=
 
-    if [ "$ngx_module_link" = DYNAMIC ]; then
+    if :; then
         ngx_module_name=ngx_http_async_module
         ngx_module_libs="-lm"
         ngx_rust_target_name=async

examples/t/async.t

@@ -0,0 +1,56 @@
+#!/usr/bin/perl
+
+# (C) Nginx, Inc
+
+# Tests for ngx-rust example modules.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http/)->plan(1)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location / {
+            async on;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('index.html', '');
+$t->run();
+
+###############################################################################
+
+like(http_get('/index.html'), qr/X-Async-Time:/, 'async handler');
+
+###############################################################################