Add requirements and testr

.testr.conf

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

requirements.txt

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+pbr>=0.5.21,<1.0
+
+oslo.config>=1.2.0
+stevedore>=0.12
+
+# For Swift storage backend.
+python-swiftclient>=1.5
+
+python-cinderclient>=1.0.6
+
+# Required by openstack.common libraries
+six>=1.4.1

test-requirements.txt

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+# Metrics and style
+hacking>=0.8.0,<0.9
+
+# Packaging
+mock>=1.0
+
+# Unit testing
+fixtures>=0.3.14
+python-subunit
+testrepository>=0.0.17
+testtools>=0.9.32

tox.ini

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+[tox]
+minversion = 1.6
+envlist = py26,py27,py33,pypy,pep8,lint2,lint3
+skipsdist = True
+
+[testenv]
+usedevelop = True
+# Customize pip command, add -U to force updates.
+install_command = pip install -U {opts} {packages}
+setenv = VIRTUAL_ENV={envdir}
+         GLANCE_STORE_TESTS_DIR={toxinidir}/tests
+         GLANCE_STORE_TESTS_CONFIGS_DIR={toxinidir}/tests/etc/
+
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+#commands = nosetests {posargs}
+commands = python setup.py testr --slowest --testr-args='--concurrency 1 {posargs}'
+
+[tox:jenkins]
+downloadcache = ~/cache/pip
+
+[testenv:pep8]
+commands = flake8
+
+[testenv:lint2]
+basepython = python2
+deps = pylint
+commands = pylint ./glance.store ./tests -E --ignore ./openstack
+
+[testenv:lint3]
+basepython = python3
+deps = pylint
+commands = pylint ./glance.store ./tests -E --ignore ./openstack
+
+[testenv:cover]
+setenv = NOSE_WITH_COVERAGE=1
+commands =
+  python setup.py testr --coverage \
+    --testr-args='^(?!.*test.*coverage).*$'
+
+[testenv:venv]
+commands = {posargs}
+
+[flake8]
+exclude = .venv*,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*.egg,.update-venv
+
+[hacking]
+import_exceptions = glance.store.openstack.common.gettextutils._
+