-export HOME="$TEMPDIR"/testuser
-export GNUPGHOME="$HOME"/.gnupg
-export SSH_ASKPASS="$HOME"/.ssh/askpass
-export MONKEYSPHERE_HOME="$HOME"/.monkeysphere
-
-cat <<EOF >> "$HOME"/.ssh/config
-UserKnownHostsFile $HOME/.ssh/known_hosts
-IdentityFile $HOME/.ssh/no-such-identity
-ProxyCommand $HOME/.ssh/proxy-command %h %p $SOCKET
+TESTHOME="$TEMPDIR"/testuser
+export GNUPGHOME="$TESTHOME"/.gnupg
+export SSH_ASKPASS="$TESTHOME"/.ssh/askpass
+export MONKEYSPHERE_HOME="$TESTHOME"/.monkeysphere
+cat <<EOF >> "$TESTHOME"/.ssh/config
+UserKnownHostsFile $TESTHOME/.ssh/known_hosts
+IdentityFile $TESTHOME/.ssh/no-such-identity
+ProxyCommand $TESTHOME/.ssh/proxy-command %h %p $SOCKET