Replace nose

nose has been unmaintained for long time. Replace it by stestr, which
is now commonly used.

Also bump etcd to the version currently used in devstack and tooz.

Change-Id: Id6ac7d3e82eb2931c1fc63aac5be9eb62a361703

.coveragerc

@@ -1,10 +1,9 @@
 [run]
 branch = True
-source =
-    etcdgw
+source = etcd3gw
 omit =
-    /*/tests/*
-    /*/examples/*
+    etcd3gw/tests/*
+    etcd3gw/examples/*
 
 [report]
 ignore_errors = True

.gitignore

@@ -25,9 +25,8 @@ pip-log.txt
 cover/
 .coverage*
 !.coveragerc
+.stestr
 .tox
-nosetests.xml
-.testrepository
 .venv
 
 # Translations
@@ -58,4 +57,4 @@ ChangeLog
 etcd-v*
 
 # Files created by releasenotes build
-releasenotes/build
+releasenotes/build

.stestr.conf

@@ -0,0 +1,2 @@
+[DEFAULT]
+test_path=etcd3gw

.testr.conf

@@ -1,7 +0,0 @@
-[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 ./ . $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

etcd3gw/tests/test_etcd3gw.py

@@ -45,7 +45,7 @@ def _is_etcd3_running():
 class TestEtcd3Gateway(base.TestCase):
     @classmethod
     def setUpClass(cls):
-        cls.client = Etcd3Client(api_path='/v3/')
+        cls.client = Etcd3Client(api_path='/v3beta/')
 
     @unittest.skipUnless(
         _is_etcd3_running(), "etcd3 is not available")

setup-etcd-env.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -eux
 if [ -z "$(which etcd)" ]; then
-    ETCD_VERSION=3.1.10
+    ETCD_VERSION=3.3.27
     case `uname -s` in
         Darwin)
             OS=darwin

test-requirements.txt

@@ -1,10 +1,5 @@
 coverage>=4.0 # Apache-2.0
-python-subunit>=0.0.18 # Apache-2.0/BSD
 oslotest>=1.10.0 # Apache-2.0
-testrepository>=0.0.18  # Apache-2.0/BSD
-testscenarios>=0.4  # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
 pifpaf>=0.10.0 # Apache-2.0
-nose>=1.3.7  # GNU LGPL
-pytest>=3.0.0  # MIT
+stestr>=2.0.0 # Apache-2.0
 urllib3>=1.15.1  # MIT

tox.ini

@@ -7,7 +7,11 @@ usedevelop = True
 deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
-commands = py.test -vv {posargs}
+commands =
+  find . -type f -name "*.pyc" -delete
+  stestr run {posargs}
+allowlist_externals =
+  find
 
 [testenv:pep8]
 deps =
@@ -19,33 +23,33 @@ commands =
 commands = {posargs}
 
 [testenv:cover]
+deps = {[testenv]deps}
+setenv =
+    PYTHON=coverage run --source etcd3gw --parallel-mode
 commands =
     coverage erase
-    python setup.py test --coverage --testr-args='{posargs}'
-
-[testenv:codecov]
-deps = {[testenv]deps}
-       codecov>=1.4.0
-commands =
-    {toxinidir}/setup-etcd-env.sh pifpaf -g TOOZ_TEST run etcd -- nosetests --with-coverage --cover-package=etcd3gw --cover-tests
-    codecov
+    {toxinidir}/setup-etcd-env.sh pifpaf run etcd -- stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report --show-missing
+allowlist_externals =
+  {toxinidir}/setup-etcd-env.sh
 
 [testenv:docs]
 deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -W -b html doc/source doc/build/html
 
-[testenv:pypy-etcd]
-commands = {toxinidir}/setup-etcd-env.sh pifpaf -g TOOZ_TEST run etcd -- py.test -vv '{posargs}'
-
-[testenv:py39-etcd]
-commands = {toxinidir}/setup-etcd-env.sh pifpaf -g TOOZ_TEST run etcd -- py.test -vv '{posargs}'
-
-[testenv:py312-etcd]
-commands = {toxinidir}/setup-etcd-env.sh pifpaf -g TOOZ_TEST run etcd -- py.test -vv '{posargs}'
+[testenv:py{3,39,312}-etcd]
+commands = {toxinidir}/setup-etcd-env.sh pifpaf run etcd -- stestr run {posargs}
+allowlist_externals =
+  {toxinidir}/setup-etcd-env.sh
 
 [testenv:examples]
-commands = {toxinidir}/setup-etcd-env.sh pifpaf -g TOOZ_TEST run etcd -- python {toxinidir}/etcd3gw/examples/etcd.py
+commands = {toxinidir}/setup-etcd-env.sh pifpaf run etcd -- python {toxinidir}/etcd3gw/examples/etcd.py
+allowlist_externals =
+  {toxinidir}/setup-etcd-env.sh
 
 [testenv:releasenotes]
 deps = {[testenv:docs]deps}