diff --git a/tests/hardening/6.2.15_find_passwd_group_inconsistencies.sh b/tests/hardening/6.2.15_find_passwd_group_inconsistencies.sh
index b333419..8e1da73 100644
--- a/tests/hardening/6.2.15_find_passwd_group_inconsistencies.sh
+++ b/tests/hardening/6.2.15_find_passwd_group_inconsistencies.sh
@@ -6,5 +6,15 @@ test_audit() {
     # shellcheck disable=2154
     run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
 
-    # TODO fill comprehensive tests
+    local test_user="testpasswdgroupuser"
+    local dir="/etc/passwd"
+
+    describe Tests purposely failing 
+    echo "$test_user:x:1100:1100::/home/$test_user:" >> $dir
+    register_test retvalshouldbe 1
+    register_test contain "is referenced by /etc/passwd but does not exist in /etc/group"
+    run noncompliant /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+
+    # cleanup
+    userdel $test_user
 }