diff --git a/t/README.md b/t/README.md
index a1398d12641830786204e274faa5f636f9066036..9cccd8c2b5e4775f114a3b0e0bb209c9fbdb31e3 100644
--- a/t/README.md
+++ b/t/README.md
@@ -6,32 +6,21 @@ Setup and files to test the *ngx\_http\_voms\_module* are contained in the `t` f
 
 ### Test fixture setup 
 
-Proxy certificates are in the `certs` folder:
+Proxy certificates are in the `certs` folder (see [README.md](certs/README.md) for further details), while trust-anchors (e.g. igi-test-ca.pem) are contained in `trust-anchors`. 
 
- * 0.pem: long-lived proxy certificate, without Attribute Certificate (AC);
- * 1.pem: long-lived proxy certificate, with an expired AC;
- * 2.pem: expired proxy certificate.
+Nginx server certificate and key are nginx\_voms\_example.cert.pem and nginx\_voms\_example\_key.pem, respectively, and they are contained in `certs`.
 
-Proxy certificates are generated using [VOMS client 3.3.0](http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3/). 
-
-The following command is used:
-
-	VOMS_CLIENTS_JAVA_OPTIONS="-Dvoms.fake.vo=test.vo -Dvoms.fake=true -Dvoms.fake.aaCert=<path_to_cert>/voms_example.cert.pem -Dvoms.fake.aaKey=<path_to_key>/voms_example.key.pem" voms-proxy-init3 -voms test.vo -cert <path_to_test0>/test0.p12 --valid <validity>
-
-*voms\_example.cert.pem* and *voms\_example.ket.pem* can be found in the `certs` folder. 
-
-To perform correctly the VOMS AC validation, a \*.lsc or \*.pem file is needed in `/etc/grid-security/vomsdir`, see [VOMS client 3.3.0 User Guide](http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3/) for further details. An example of *voms.example.lsc* can be found in `vomsdir/test.vo`.
-
-Trust-anchors (igi-test-ca.pem) are contained in the `trust-anchors` folder. Nginx server certificate and key (nginx\_voms\_example.cert.pem and nginx\_voms\_example\_key.pem) are in the `certs` folder.
+To perform correctly the VOMS AC validation, a \*.lsc or \*.pem file is needed, see [VOMS client 3.3.0 User Guide](http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3/) for further details. The *voms.example.lsc* can be found in `vomsdir/test.vo`.
 
 ### Running Tests
 
-To run the tests made available in the `t` folder just type
+To run the tests made available in `t` just type
 
 	prove -v 
 
+from `t`' s parent directory.
 
-Using the docker image provided to exploit Openresty in the Storm2 project:
+Using the docker image provided to exploit Openresty in the Storm2 project (see [README.md](../README.md) for further details):
 
     cp -r t /tmp
     cd /tmp
diff --git a/t/certs/README.md b/t/certs/README.md
index 36f6f3ceac53096b49e8cb95ce59dd2988240f7a..b23d8ee80f41691f24b2d130d3b5419b7f963b0a 100644
--- a/t/certs/README.md
+++ b/t/certs/README.md
@@ -1,3 +1,18 @@
-TBD:
+=======
+# Certificates for ngx\_http\_voms\_module Testing 
 
-Add docs on certs here
+Proxy certificates are generated using [VOMS client 3.3.0](http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3/):
+
+ * 0.pem: long-lived proxy certificate, without Attribute Certificate (AC);
+ * 1.pem: long-lived proxy certificate, with an expired AC;
+ * 2.pem: expired proxy certificate.
+
+To obtain such certificates the following command is used:
+
+	VOMS_CLIENTS_JAVA_OPTIONS="-Dvoms.fake.vo=test.vo -Dvoms.fake=true -Dvoms.fake.aaCert=<path_to_cert>/voms_example.cert.pem -Dvoms.fake.aaKey=<path_to_key>/voms_example.key.pem" voms-proxy-init3 -voms test.vo -cert <path_to_test0>/test0.p12 --valid <validity>
+
+*voms\_example.cert.pem* and *voms\_example.ket.pem* can be found in the `certs` folder. 
+
+To perform correctly the VOMS AC validation, a \*.lsc or \*.pem file is needed in `/etc/grid-security/vomsdir`, see [VOMS client 3.3.0 User Guide](http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3/) for further details. An example of *voms.example.lsc* can be found in `vomsdir/test.vo`.
+
+Nginx server certificate and key  are nginx\_voms\_example.cert.pem and nginx\_voms\_example\_key.pem.
diff --git a/t/expired_ac_proxy.t b/t/expired_ac_proxy.t
index 95d474fe44768f1e4c59f5b9a9d61cd72e819732..2b07a96348f9c058dab569ef0ddd5f1daf30ed45 100644
--- a/t/expired_ac_proxy.t
+++ b/t/expired_ac_proxy.t
@@ -8,8 +8,8 @@ __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=/home/build/ngx_http_voms_module/t/vomsdir;
-    env X509_CERT_DIR=/home/build/ngx_http_voms_module/t/trust-anchors;
+    env X509_VOMS_DIR=t/vomsdir;
+    env X509_CERT_DIR=t/trust-anchors;
 --- http_config
     server {
         error_log logs/error.log debug;