test: fix host group name in ansible test file

Host group should be 'guest'. The ansible inventory file in the test
uses the group name 'guest'.

Change package check to tmux since zsh isn't installed.

Signed-off-by: Achilleas Koutsou <achilleas@koutsou.net>

test/data/ansible/check_install.yaml

@@ -1,5 +1,5 @@
 ---
-- hosts: test_guest
+- hosts: guest
   become: no
   vars:
     workspace: "{{ lookup('env', 'WORKSPACE') }}"
@@ -10,7 +10,7 @@
     # current target host's IP address
     - debug: var=ansible_all_ipv4_addresses
 
-    # case: check if selected packages installed (vim & zsh)
+    # case: check if selected packages installed (vim and tmux)
     - name: check installed package
       shell: rpm -qa | sort
       register: result_packages
@@ -30,13 +30,13 @@
           set_fact:
             failed_counter: "{{ failed_counter | int + 1 }}"
 
-    - name: check zsh installed
+    - name: check tmux installed
       block:
         - assert:
             that:
-              - "'zsh' in result_packages.stdout"
-            fail_msg: "zsh not installed"
-            success_msg: "zsh installed"
+              - "'tmux' in result_packages.stdout"
+            fail_msg: "tmux not installed"
+            success_msg: "tmux installed"
       always:
         - set_fact:
             total_counter: "{{ total_counter | int + 1 }}"
@@ -48,7 +48,7 @@
     - name: save installed package list to log file
       copy:
         content: "{{ result_packages.stdout }}"
-        dest: "{{ workspace }}/{{ commit_log }}.installed.log"
+        dest: "{{ workspace }}/installed.log"
       delegate_to: localhost
 
     - assert: