diff --git a/tests/functions.sh b/tests/functions.sh
index 0fd76cc..69e8c0a 100755
--- a/tests/functions.sh
+++ b/tests/functions.sh
@@ -11,43 +11,28 @@
 source $TOP/openrc
 
 
-echo "Testing die_if_error()"
-
-bash -c "source $TOP/functions; true; die_if_error 'not OK'"
-if [[ $? != 0 ]]; then
-    echo "die_if_error [true] Failed"
-fi
-
-bash -c "source $TOP/functions; false; die_if_error 'OK'"
-if [[ $? = 0 ]]; then
-    echo "die_if_error [false] Failed"
-else
-    echo 'OK'
-fi
-
-
 echo "Testing die_if_not_set()"
 
-bash -c "source $TOP/functions; X=`echo Y && true`; die_if_not_set X 'not OK'"
+bash -cx "source $TOP/functions; X=`echo Y && true`; die_if_not_set X 'not OK'"
 if [[ $? != 0 ]]; then
     echo "die_if_not_set [X='Y' true] Failed"
 else
     echo 'OK'
 fi
 
-bash -c "source $TOP/functions; X=`true`; die_if_not_set X 'OK'"
+bash -cx "source $TOP/functions; X=`true`; die_if_not_set X 'OK'"
 if [[ $? = 0 ]]; then
     echo "die_if_not_set [X='' true] Failed"
 fi
 
-bash -c "source $TOP/functions; X=`echo Y && false`; die_if_not_set X 'not OK'"
+bash -cx "source $TOP/functions; X=`echo Y && false`; die_if_not_set X 'not OK'"
 if [[ $? != 0 ]]; then
     echo "die_if_not_set [X='Y' false] Failed"
 else
     echo 'OK'
 fi
 
-bash -c "source $TOP/functions; X=`false`; die_if_not_set X 'OK'"
+bash -cx "source $TOP/functions; X=`false`; die_if_not_set X 'OK'"
 if [[ $? = 0 ]]; then
     echo "die_if_not_set [X='' false] Failed"
 fi