Add a test-case for VCL purging

git-svn-id: http://www.varnish-cache.org/svn/trunk@3046 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtest/tests/c00017.vtc

+# $Id: c00016.vtc 3012 2008-07-24 12:22:35Z des $
+
+test "Test vcl purging"
+
+server s1 {
+	rxreq
+	txresp -body "foo"
+
+	rxreq
+	txresp -body "foo"
+} -start
+
+varnish v1 -vcl+backend { 
+
+	sub vcl_fetch {
+		purge_url("^/$");
+	}
+
+} -start
+
+client c1 {
+	txreq 
+	rxresp
+	expect resp.http.X-Varnish == "1001"
+
+	txreq
+	rxresp
+	expect resp.http.X-Varnish == "1002"
+
+} -start