+#
+# update a file
+#
+ohash=$(zpm hash bin/true)
+require mv bin/true bin/save
+require sh -c 'echo false > bin/true'
+nhash=$(zpm hash bin/true)
+pkgid=itest-4.0-1
+newpkg $pkgid bin/true
+okexit setup package $pkgid
+require mv bin/save bin/true
+PF=$pkgid.zpm
+zpm install -R. -d local.db -f $PF $pkgid | diagstdin
+okexit installed $pkgid
+rhash=$(zpm hash bin/true)
+okstreq "$rhash" "$nhash" "updated bin/true"
+