Add test_tests.sh (#3633)

tests/letstest/scripts/test_tests.sh

@@ -0,0 +1,17 @@
+#!/bin/sh -xe
+
+MODULES="acme certbot certbot_apache certbot_nginx"
+VENV_NAME=venv
+
+# *-auto respects VENV_PATH
+VENV_PATH=$VENV_NAME letsencrypt/certbot-auto --debug --non-interactive --version
+. $VENV_NAME/bin/activate
+
+# change to an empty directory to ensure CWD doesn't affect tests
+cd $(mktemp -d)
+pip install nose
+
+for module in $MODULES ; do
+    echo testing $module
+    nosetests -v $module
+done