move library/plugins tests files under tests dir

To avoid unnecessary ansible warnings during playbook execution we can
move the library and plugins test files under a different directory.

[WARNING]: Skipping plugin (plugins/filter/test_ipaddrs_in_ranges.py) as
it seems to be invalid:
cannot import name 'ipaddrs_in_ranges'

Closes: #4656

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 6ce4fde820)

.travis.yml

@@ -9,5 +9,5 @@ install:
   - pip install ansible-lint pytest
 script:
   - if [[ -n $(grep --exclude-dir=.git -P "\xa0" -r .) ]]; then echo 'NBSP characters found'; exit 1; fi
-  - pytest -vvvv library/ plugins/
+  - pytest -vvvv tests/library/ tests/plugins/filter/
   - for i in $(ls -1 roles/); do ANSIBLE_LOG_PATH=/dev/null ansible-lint -x 204 -v roles/$i/; if [ $? -ne 0 ]; then exit 1; fi; done

tests/library/test_ceph_crush.py

@@ -1,4 +1,6 @@
-from . import ceph_crush
+import sys
+sys.path.append('./library')
+import ceph_crush
 import pytest
 
 

tests/library/test_ceph_key.py

@@ -1,6 +1,8 @@
 import json
 import os
-from . import ceph_key
+import sys
+sys.path.append('./library')
+import ceph_key
 import mock
 
 

tests/library/test_ceph_volume.py

@@ -1,4 +1,6 @@
-from . import ceph_volume
+import sys
+sys.path.append('./library')
+import ceph_volume
 import mock
 import os
 

tests/plugins/filter/test_ipaddrs_in_ranges.py

@@ -1,4 +1,6 @@
-from . import ipaddrs_in_ranges
+import sys
+sys.path.append('./plugins/filter')
+import ipaddrs_in_ranges
 
 filter_plugin = ipaddrs_in_ranges.FilterModule()