Resolve "Setup test proxy certificates and basic VOMS module testing"

First solution to issue #1 (closed) using the Openresty test-suite. Proposals for the simplest test cases.

t/expired_ac_proxy.t

+
+use Test::Nginx::Socket 'no_plan';
+
+run_tests();
+
+__DATA__
+
+=== TEST 1: https with x509 client authentication, valid proxy certificate with expired VOMS attributes 
+--- main_config
+    env OPENSSL_ALLOW_PROXY_CERTS=1;
+    env X509_VOMS_DIR=t/vomsdir;
+    env X509_CERT_DIR=t/trust-anchors;
+--- http_config
+    server {
+        error_log logs/error.log debug;
+        listen 8443 ssl;
+        ssl_certificate ../../certs/nginx_voms_example.cert.pem;
+        ssl_certificate_key ../../certs/nginx_voms_example.key.pem;
+        ssl_client_certificate ../../trust-anchors/igi-test-ca.pem;
+        ssl_verify_depth 10;
+        ssl_verify_client on;
+	location = / {
+            default_type text/plain;
+            echo $voms_fqans;
+            echo $voms_user;
+        }
+    }
+--- config
+    location = / {
+        proxy_pass https://localhost:8443/;
+        proxy_ssl_certificate ../../certs/1.cert.pem;
+        proxy_ssl_certificate_key ../../certs/1.key.pem;
+    }
+--- request
+GET / 
+--- response_body_like eval
+qr/\n\n/
+--- error_log
+AC not valid anymore
+--- error_code: 200