+echo "Exporting database"
+wanna-build -A amd64 -b amd64/build-db --export $testdir/export1
+
+echo "Importing database"
+wanna-build -A amd64 -b amd64/build-db --import $testdir/export1
+
+echo "Exporting database again"
+wanna-build -A amd64 -b amd64/build-db --export $testdir/export2
+
+if ! diff -q $testdir/export1 $testdir/export2
+then
+ echo "Exporting and importing is not idempotent!"
+ exit 1
+fi