test: Add upstream check test

relivant: vozlt#227, vozlt#258, vozlt#262

.github/workflows/ci.yml

@@ -58,10 +58,20 @@ jobs:
           sudo ln -s /home/runner/work/nginx-module-vts/nginx-module-vts/lua-resty-core/lib/resty/core.lua core.lua
           sudo ln -s /home/runner/work/nginx-module-vts/nginx-module-vts/lua-resty-lrucache/lib/resty/lrucache lrucache
           sudo ln -s /home/runner/work/nginx-module-vts/nginx-module-vts/lua-resty-lrucache/lib/resty/lrucache.lua lrucache.lua
+      - name: 'prepare nginx_upstream_check'
+        uses: actions/checkout@v3
+        with:
+          repository: yaoweibin/nginx_upstream_check_module
+          path: nginx_upstream_check
+
+      - name: 'patch upstream_check'
+        working-directory: nginx
+        run: |
+          patch -p1 < /home/runner/work/nginx-module-vts/nginx-module-vts/nginx_upstream_check/check_1.20.1+.patch
       - name: 'build nginx'
         working-directory: nginx
         run: |
-          ./auto/configure --with-ld-opt="-Wl,-rpath,/usr/local/lib" --without-pcre2 --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/ngx_devel_kit --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/lua-nginx-module --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/nginx-module-vts
+          ./auto/configure --with-ld-opt="-Wl,-rpath,/usr/local/lib" --without-pcre2 --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/ngx_devel_kit --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/lua-nginx-module --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/nginx-module-vts --add-module=/home/runner/work/nginx-module-vts/nginx-module-vts/nginx_upstream_check
           make
           sudo make install
           /usr/local/nginx/sbin/nginx -V
@@ -83,3 +93,11 @@ jobs:
         run: |
           echo "/usr/local/nginx/sbin/" >> $GITHUB_PATH
           sudo PATH=/usr/local/nginx/sbin:$PATH prove -r t
+      - name: 'test upstream check'
+        working-directory: nginx-module-vts
+        run: |
+          echo "/usr/local/nginx/sbin/" >> $GITHUB_PATH
+          sudo PATH=/usr/local/nginx/sbin:$PATH prove t/024.upstream_check.t
+        env:
+          TEST_UPSTREAM_CHECK: 1
+          TEST_NGINX_SLEEP: 1

t/024.upstream_check.t

@@ -0,0 +1,64 @@
+# vi:set ft=perl ts=4 sw=4 et fdm=marker:
+
+use Test::Nginx::Socket;
+
+master_on;
+plan skip_all => 'nginx_upstream_check test skipped' unless $ENV{TEST_UPSTREAM_CHECK};
+plan tests => 4;
+no_shuffle();
+run_tests();
+
+__DATA__
+
+=== TEST 1: upstream peer->down is true
+--- http_config
+    vhost_traffic_status_zone;
+    upstream backend {
+        zone backend 64k;
+        server localhost:8080;
+        check interval=1000 rise=1 fall=1 timeout=1000;
+    }
+--- config
+    location /backend {
+        proxy_pass http://backend;
+    }
+    location /status {
+        check_status;
+        vhost_traffic_status_display;
+        vhost_traffic_status_display_format json;
+        access_log off;
+    }
+--- request
+GET /status
+--- response_body_like eval
+'"down":true'
+
+=== TEST 2: upstream peer->down is false
+--- http_config
+    vhost_traffic_status_zone;
+    upstream backend {
+        zone backend 64k;
+        server localhost:8080;
+        check interval=1000 rise=1 fall=1 timeout=1000;
+    }
+    server {
+        listen 8080;
+        server_name localhost;
+        location / {
+            root html;
+        }
+    }
+--- config
+    location /index.html {
+        proxy_pass http://backend;
+    }
+    location /status {
+        check_status;
+        vhost_traffic_status_display;
+        vhost_traffic_status_display_format json;
+        access_log off;
+    }
+--- request
+    GET /status
+--- response_body_like eval
+    '"down":false'