Add additional tests to configure the module and verify that it started successfully

Related: #1964892

tests/roles/Test_Setup/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+
+- name: Install required packages
+  dnf:
+    name: >
+      httpd, mod_proxy_cluster
+
+- name: Comment out mod_proxy_balancer
+  command: sed -i 's@LoadModule proxy_balancer_module@#LoadModule proxy_balancer_module@g' /etc/httpd/conf.modules.d/00-proxy.conf
+
+- name: Configure mod_proxy_cluster
+  command: mv /etc/httpd/conf.d/mod_cluster.conf.sample /etc/httpd/conf.d/mod_cluster.conf

tests/tests.yml

@@ -3,14 +3,18 @@
   tags:
     - classic
   roles:
+  - role: Test_Setup
   - role: standard-test-basic
     tests:
     - verify_httpd_up:
         dir: .
         run: "curl http://localhost/ &> testfile.log || true && grep '<strong>Test Page</strong>' testfile.log"
-    - check_error_log:
+    - check_error_log_for_unexpected_errors:
         dir: .
         run: "! sudo grep -i error /var/log/httpd/error_log | grep -v \"AH01276\""
+    - check_mod_proxy_cluster_configured:
+        dir: .
+        run: "grep -e \"mod_cluster/.* configured -- resuming normal operations\" /var/log/httpd/error_log"
     required_packages:
     - mod_proxy_cluster
     - httpd