Adding changes for tox failure

This patch resolves the issue of tox
failure.

Change-Id: I565cd2593982a1b5c8c43cf394301c56e24b9b29
Closes-Bug: 1828511

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=${TESTS_DIR:-./proliantutils/tests/}
+top_dir=./

.testr.conf

@@ -1,4 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} OS_TEST_TIMEOUT=60 ${PYTHON:-python} -m subunit.run discover -t ./ ${TESTS_DIR:-./proliantutils/tests/} $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

tox.ini

@@ -10,7 +10,7 @@ setenv = VIRTUAL_ENV={envdir}
          LC_ALL=en_US.UTF-8
          TESTS_DIR=./proliantutils/tests/
 deps = -r{toxinidir}/test-requirements.txt
-commands = ostestr {posargs}
+commands = stestr run {posargs}
 
 [testenv:pep8]
 basepython = python2.7
@@ -25,10 +25,15 @@ commands =
 # in your browser, to see a nicer presentation report with annotated
 # HTML listings detailing missed lines.
 basepython = python2.7
-deps = {[testenv]deps}
-commands = coverage erase
-           python setup.py testr --coverage --omit='*test*' --testr-args='{posargs}'
-           coverage report --omit=*test*
+setenv = VIRTUAL_ENV={envdir}
+         LANGUAGE=en_US
+         PYTHON=coverage run --source proliantutils --omit='*tests*' --parallel-mode
+commands =
+  coverage erase
+  stestr run {posargs}
+  coverage combine
+  coverage report --omit='*tests*'
+  coverage html -d ./cover --omit='*tests*'
 
 [flake8]
 # Exclude MIB directories from flake8/pep8 tests as these are