[stable-2.7] Improve dnf test formatting and fix RHEL 8 module name (#58648)

- use single include_vars task rather than multiple set_fact tasks
- use multi-line YAML to break up long conditionals
- use version() test rather than direct comparisions
- use different appstream package on RHEL since '@swig:3.0/default' is not working in the GA.
(cherry picked from commit 16d6fcf514)

Co-authored-by: Sam Doran <sdoran@redhat.com>

test/integration/targets/dnf/tasks/dnf.yml

@@ -6,6 +6,8 @@
   shell: rpm -q python2-dnf
   register: rpm_result
   ignore_errors: true
+  args:
+    warn: no
 
 # Don't uninstall python2-dnf with the `dnf` module in case it needs to load
 # some dnf python files after the package is uninstalled.

test/integration/targets/dnf/tasks/main.yml

@@ -19,27 +19,24 @@
 # Note: We install the yum package onto Fedora so that this will work on dnf systems
 # We want to test that for people who don't want to upgrade their systems.
 
-- include: 'dnf.yml'
-  when:
-    - ansible_distribution == 'Fedora'
-    - ansible_distribution_major_version|int >= 23
+- include_tasks: dnf.yml
+  when: (ansible_distribution == 'Fedora' and ansible_distribution_major_version is version('23', '>=')) or
+        (ansible_distribution == 'RedHat' and ansible_distribution_major_version is version('8', '>='))
 
-- include: 'repo.yml'
-  when:
-    - ansible_distribution == 'Fedora'
-    - ansible_distribution_major_version|int >= 23
+- include_tasks: repo.yml
+  when: (ansible_distribution == 'Fedora' and ansible_distribution_major_version is version('23', '>=')) or
+        (ansible_distribution == 'RedHat' and ansible_distribution_major_version is version('8', '>='))
 
-- include: 'dnfinstallroot.yml'
-  when:
-    - ansible_distribution == 'Fedora'
-    - ansible_distribution_major_version|int >= 23
+- include_tasks: dnfinstallroot.yml
+  when: (ansible_distribution == 'Fedora' and ansible_distribution_major_version is version('23', '>=')) or
+        (ansible_distribution == 'RedHat' and ansible_distribution_major_version is version('8', '>='))
 
-- include: 'dnfreleasever.yml'
+# Attempting to install a different RHEL release in a tmpdir doesn't work (rhel8 beta)
+- include_tasks: dnfreleasever.yml
   when:
     - ansible_distribution == 'Fedora'
-    - ansible_distribution_major_version|int >= 23
+    - ansible_distribution_major_version is version('23', '>=')
 
-- import_tasks: 'modularity.yml'
-  when:
-    - ansible_distribution == 'Fedora' and ansible_distribution_major_version|int >= 29
-    - ansible_distribution == 'RedHat' and ansible_distribution_major_version|int >= 8
+- include_tasks: modularity.yml
+  when: (ansible_distribution == 'Fedora' and ansible_distribution_major_version is version('29', '>=')) or
+        (ansible_distribution == 'RedHat' and ansible_distribution_major_version is version('8', '>='))

test/integration/targets/dnf/tasks/modularity.yml

@@ -1,13 +1,6 @@
 # FUTURE - look at including AppStream support in our local repo
-- name: set package for RHEL
-  set_fact:
-    astream_name: '@swig:3.0/default'
-  when: ansible_distribution == 'RedHat'
-
-- name: set package for Fedora
-  set_fact:
-    astream_name: '@ripgrep:master/default'
-  when: ansible_distribution == 'Fedora'
+- name: Include distribution specific variables
+  include_vars: "{{ ansible_facts.distribution }}.yml"
 
 - name: install "@postgresql:9.6/client" module
   dnf:
@@ -48,7 +41,7 @@
 - name: uninstall "@postgresql:9.6/client" module again
   dnf:
     name: "@postgresql:9.6/client"
-    state: install
+    state: absent
   register: dnf_result
 
 - name: verify uninstallation of "@postgresql:9.6/client" module again

test/integration/targets/dnf/vars/Fedora.yml

@@ -0,0 +1 @@
+astream_name: '@ripgrep:master/default'

test/integration/targets/dnf/vars/RedHat.yml

@@ -0,0 +1 @@
+astream_name: '@php:7.1/minimal'