Test that objects are still present after varnish reload

to be able to do this and see the right object, we need to change the
test case to a private upload directory (defaults to per-vtc working
directory)

src/vtc/plain.vtc

@@ -40,7 +40,7 @@ varnish v1 -vcl+backend {
 	sub vcl_init {
 	    new test = tus.server("https://my.origin");
 	    new tmp = tus.server("http://localhost",
-		basedir="/tmp/tus", max = 3145B);
+		max = 3145B);
 	}
 	sub vcl_backend_fetch {
 		if (bereq.url ~ "^/tus") {
@@ -528,3 +528,24 @@ client c8 -wait
 client c9 -wait
 client c10 -wait
 client c11 -wait
+
+varnish v1 -stop
+varnish v1 -start
+
+# check that objects are still present
+
+client c2 {
+	txreq	-method HEAD -url "/vtc" \
+		-hdr "Tus-Resumable: 1.0.0"
+	rxresp
+
+	expect resp.status == 200
+	expect resp.http.Tus-Resumable == "1.0.0"
+	expect resp.http.Tus-Version == "1.0.0"
+	expect resp.http.Tus-Extension == "creation,creation-with-upload,expiration,termination,concatenation"
+	expect resp.http.Tus-Checksum-Algorithm == <undef>
+	expect resp.http.Tus-Max-Size == 3145
+	expect resp.http.Upload-Offset == 100
+	expect resp.http.Upload-Length == 100
+	expect resp.http.Upload-Expires ~ "GMT$"
+} -run
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