diff --git a/tools/test.zsh b/tools/test.zsh
index ff0dc85..05a79e7 100644
--- a/tools/test.zsh
+++ b/tools/test.zsh
@@ -5,20 +5,22 @@ set -ex
 # check files
 cd /
 l
+cd ~
+l
 dfs cd
 l
 pwd
 test -f .zshrc2
 diff -q ./.ssh/authorized_keys2 ~/.ssh/authorized_keys2
 grep -q ".zshrc2" ~/.zshrc
-cd ~
-l
 
 # check scripts and functions
 dfs version
 dfs log 1
 z ~
+test ~ -ef "$(pwd)"
 dogo
+dfs cd
 tools/common.sh get_os_type
 tools/common.sh get_linux_dist