Make test_results folder visible in zuul

This patch moves test result logs [1] to tox folder [2]
so that it is automatically added to the list of log files by zuul

[1] sova.log, test_results/*
[2] .tox/<envname>/log

Change-Id: I57e4b05e199ded91b5ab26fa4054d6bbf1192fd2

playbooks/er.yml

@@ -6,7 +6,7 @@
 
   vars:
     er_dir: '../output/elastic-recheck'
-    test_results_dir: '../test_results'
+    test_results_dir: "../.tox/py{{ ansible_python_version.split('.')[:-1] | join('') }}/log/test_results"
 
   tasks:
     - name: Make sure dir for test output exists

playbooks/sova.yml

@@ -11,6 +11,7 @@
     samples_log: "{{ samples_dir }}/errors-testing.err"
     queries_file: "{{ lookup('file', playbook_dir + '/../src/data/queries.yml') | from_yaml }}"
     query_ids: []
+    sova_log: "../.tox/py{{ ansible_python_version.split('.')[:-1] | join('') }}/log/sova.log"
   tasks:
     - name: Display file to be tested
       debug:
@@ -31,7 +32,7 @@
         config: "{{ sova_cfg_file }}"
         files:
           console: "{{ samples_log }}"
-        result: "sova.log"
+        result: "{{ sova_log }}"
         result_file_dir: "{{ (playbook_dir, '../output') | path_join | realpath }}"
       register: result
 
@@ -44,11 +45,11 @@
         msg: "Unexpected result: {{ result }}"
       when: >
         samples_log not in result.processed_files
-        or result.file_written != 'sova.log'
+        or result.file_written != sova_log
 
     - name: Get list of failures detected by sova
       set_fact:
-        failure_list: "{{ lookup('file', 'sova.log').split('\n')[0].split(' ')  }}"
+        failure_list: "{{ lookup('file', sova_log).split('\n')[0].split(' ')  }}"
 
     - name: Fail if sova doesn't find a match for all the regexes
       fail: