Clean-up tox.ini

* move ostestr execution to [testenv]
* effectively enable `lower-constraints` job execution
* use default configuration for `py36` environment

Change-Id: Id8f914b5a7f4cbc996238c5c4f2b1f352b901e5d

tox.ini

@@ -19,33 +19,12 @@ deps =
   -r{toxinidir}/requirements.txt
 commands =
   find ./ -type f -name '*.pyc' -delete
-
-[testenv:py27]
-description = Runs unit test using Python2.7
-basepython = python2.7
-commands =
-  {[testenv]commands}
-  stestr run {posargs}
-
-[testenv:py35]
-description = Runs unit test using Python3.5
-basepython = python3.5
-commands =
-  {[testenv]commands}
-  stestr run {posargs}
-
-[testenv:py36]
-description = Runs unit test using Python3.6
-basepython = python3.6
-commands =
-  {[testenv]commands}
   stestr run {posargs}
 
 [testenv:cover]
 description = Calculates code coverage
 basepython = python2.7
 commands =
-  {[testenv]commands}
   coverage erase
   python setup.py test --coverage --testr-args='{posargs}' --coverage-package-name=monasca_log_api
   coverage report
@@ -54,7 +33,6 @@ commands =
 basepython = python3
 description = Allows to run unit-test with debug mode enabled
 commands =
-  {[testenv]commands}
   oslo_debug_helper -t {toxinidir}/monasca_log_api/tests {posargs}
 
 [testenv:bashate]
@@ -77,7 +55,6 @@ commands =
 basepython = python3
 description = Runs set of linters against codebase (flake8, bandit, bashate, checkniceness)
 commands =
-  {[testenv]commands}
   {[testenv:flake8]commands}
   {[testenv:bandit]commands}
   {[testenv:bashate]commands}
@@ -87,7 +64,6 @@ commands =
 basepython = python3
 description = Validates codebase with flake
 commands =
-  {[testenv]commands}
   flake8 monasca_log_api
 
 [testenv:genconfig]
@@ -99,7 +75,6 @@ commands = oslo-config-generator --config-file=config-generator/monasca-log-api.
 basepython = python3
 description = Builds api-ref, api-guide, releasenotes and devdocs
 commands =
-  {[testenv]commands}
   {[testenv:devdocs]commands}
   {[testenv:api-guide]commands}
   {[testenv:api-ref]commands}
@@ -109,7 +84,6 @@ commands =
 basepython = python3
 description = Called from CI scripts to test and publish the API Guide
 commands =
-  {[testenv]commands}
   rm -rf api-guide/build
   {[testenv:checkjson]commands}
   sphinx-build -W -b html -d api-guide/build/doctrees api-guide/source api-guide/build/html
@@ -118,7 +92,6 @@ commands =
 basepython = python3
 description = Called from CI scripts to test and publish the API Ref
 commands =
-  {[testenv]commands}
   rm -rf api-ref/build
   {[testenv:checkjson]commands}
   sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
@@ -134,7 +107,6 @@ commands =
 basepython = python3
 description = Builds developer documentation
 commands =
-  {[testenv]commands}
   rm -rf doc/build
   rm -rf doc/source/contributor/api
   {[testenv:checkjson]commands}
@@ -146,7 +118,6 @@ description = Validates (pep-like) documenation
 skip_install = True
 usedevelop = False
 commands =
-  {[testenv]commands}
   doc8 --file-encoding utf-8 {toxinidir}/doc
   doc8 --file-encoding utf-8 {toxinidir}/api-ref
   doc8 --file-encoding utf-8 {toxinidir}/api-guide
@@ -164,7 +135,6 @@ whitelist_externals =
     find
     rm
 commands =
-  {[testenv]commands}
   bash -c "! find doc/ -type f -name *.json | xargs grep -U -n $'\r'"
   bash -c '! find doc/ -type f -name *.json | xargs -t -n1 python -m json.tool 2>&1 > /dev/null | grep -B1 -v ^python'