tests/pacman-db-upgrade-v9: set additional paths

--config does not respect root, causing pacman-db-upgrade to read the
local pacman.conf rather than the one in the test root.

Also add a rule to ensure the ALPM_DB_VERSION file is actually being
created.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

test/scripts/pacman-db-upgrade-v9.py

@@ -9,9 +9,13 @@
 self.addpkg2db("local", fpkg)
 self.dbver = 8
 
-self.cmd = ["pacman-db-upgrade", "--root", self.root + "/"]
+self.cmd = ["pacman-db-upgrade",
+        "--root", self.rootdir(),
+        "--dbpath", self.dbdir(),
+        "--config", self.configfile() ]
 
 self.addrule("PACMAN_RETCODE=0")
+self.addrule("FILE_EXIST=var/lib/pacman/local/ALPM_DB_VERSION")
 self.addrule("PKG_BACKUP=filesystem|mnt_real/subdir/foo")
 self.addrule("PKG_FILES=filesystem|mnt_real/")
 self.addrule("PKG_FILES=filesystem|mnt_real/subdir/")