Move hacking checks to tests dir

This is not cinder service code, would be better
to move it into "tests".

Change-Id: I7b18453269cfc57bfbc9bd143d72948e88e60836

.zuul.yaml

@@ -18,8 +18,8 @@
             irrelevant-files: &functional-irrelevant-files
               - ^.*\.rst$
               - ^api-ref/.*$
-              - ^cinder/hacking/.*$
               - ^cinder/locale/.*$
+              - ^cinder/tests/hacking/.*$
               - ^cinder/tests/unit.*$
               - ^contrib/block-box.*$
               - ^doc/.*$
@@ -38,9 +38,9 @@
               - ^.*\.rst$
               - ^api-ref/.*$
               - ^cinder/cmd/status\.py$
-              - ^cinder/hacking/.*$
               - ^cinder/locale/.*$
               - ^cinder/tests/functional.*$
+              - ^cinder/tests/hacking/.*$
               - ^cinder/tests/unit.*$
               - ^contrib/block-box.*$
               - ^doc/.*$

cinder/tests/hacking/checks.py

@@ -27,7 +27,7 @@ Guidelines for writing new hacking checks
    on the N3xx value.
  - List the new rule in the top level HACKING.rst file
  - Add test cases for each new rule to
-   cinder/tests/test_hacking.py
+   cinder/tests/unit/test_hacking.py
 
 """
 

cinder/tests/unit/test_hacking.py

@@ -18,13 +18,13 @@ import textwrap
 import mock
 import pycodestyle
 
-from cinder.hacking import checks
 from cinder import test
+from cinder.tests.hacking import checks
 
 
 @ddt.ddt
 class HackingTestCase(test.TestCase):
-    """This class tests the hacking checks in cinder.hacking.checks
+    """This class tests cinder's hacking checks.
 
     This class ensures that Cinder's hacking checks are working by passing
     strings to the check methods like the pep8/flake8 parser would. The parser

tools/config/generate_cinder_opts.py

@@ -106,7 +106,7 @@ if __name__ == "__main__":
     for atree in dir_trees_list:
 
         if atree in ["tools/config/generate_cinder_opts.py",
-                     "cinder/hacking/checks.py",
+                     "cinder/tests/hacking/checks.py",
                      "cinder/volume/configuration.py",
                      "cinder/test.py",
                      "cinder/cmd/status.py"]:

tox.ini

@@ -207,7 +207,7 @@ exclude = .git,.venv,.tox,dist,tools,doc/ext,*egg,build
 max-complexity=30
 
 [hacking]
-local-check-factory = cinder.hacking.checks.factory
+local-check-factory = cinder.tests.hacking.checks.factory
 import_exceptions = cinder.i18n
 
 [doc8]