make-secnet-sites: Add test for -P option

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/mtest/t-prefix b/mtest/t-prefix
new file mode 100755 (executable)
index 0000000..2db65e3
--- /dev/null
+++ b/mtest/t-prefix
@@ -0,0 +1,10 @@
+#! /usr/bin/tclsh
+
+source mtest/common.tcl
+
+run-mss -Ppprefix --no-conf-key-prefix test-example/sites $tmp/out.conf
+
+set seddery { sed -n 's/^[ \t]*//; /^[^#]/p' }
+diff  mtest/e-basic.conf $tmp/out.conf \
+    "sed -e 's/vpn/pprefixvpn/g; s/^all-sites/pprefix&/' | $seddery" \
+    $seddery