Add tests for rule accounts_minimum_age_login_defs

linux_os/guide/system/accounts/accounts-restrictions/password_expiration/accounts_minimum_age_login_defs/tests/bad_value.fail.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+grep -q "^PASS_MIN_DAYS" /etc/login.defs && \
+  sed -i "s/PASS_MIN_DAYS.*/PASS_MIN_DAYS\t0/g" /etc/login.defs
+if ! [ $? -eq 0 ]; then
+    echo -e "PASS_MIN_DAYS\t0" >> /etc/login.defs
+fi

linux_os/guide/system/accounts/accounts-restrictions/password_expiration/accounts_minimum_age_login_defs/tests/commented.fail.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+grep -q "^PASS_MIN_DAYS" /etc/login.defs && \
+  sed -i "s/PASS_MIN_DAYS.*/# PASS_MIN_DAYS\t1/g" /etc/login.defs
+if ! [ $? -eq 0 ]; then
+    echo -e "# PASS_MIN_DAYS\t1" >> /etc/login.defs
+fi

linux_os/guide/system/accounts/accounts-restrictions/password_expiration/accounts_minimum_age_login_defs/tests/correct.pass.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+grep -q "^PASS_MIN_DAYS" /etc/login.defs && \
+  sed -i "s/PASS_MIN_DAYS.*/PASS_MIN_DAYS\t7/g" /etc/login.defs
+if ! [ $? -eq 0 ]; then
+    echo -e "PASS_MIN_DAYS\t7" >> /etc/login.defs
+fi

linux_os/guide/system/accounts/accounts-restrictions/password_expiration/accounts_minimum_age_login_defs/tests/disabled.fail.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+grep -q "^PASS_MIN_DAYS" /etc/login.defs && \
+  sed -i "s/PASS_MIN_DAYS.*/PASS_MIN_DAYS\t-1/g" /etc/login.defs
+if ! [ $? -eq 0 ]; then
+    echo -e "PASS_MIN_DAYS\t-1" >> /etc/login.defs
+fi

linux_os/guide/system/accounts/accounts-restrictions/password_expiration/accounts_minimum_age_login_defs/tests/line_missing.fail.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+sed -i "/PASS_MIN_DAYS.*/d" /etc/login.defs