diff --git a/.gitignore b/.gitignore
index 963e589..59acfbd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,5 @@
 *.py[cod]
 
-# C extensions
-*.so
-
 # Packages
 *.egg*
 *.egg-info
@@ -18,30 +15,14 @@ develop-eggs
 lib
 lib64
 
-# Installer logs
-pip-log.txt
-
 # Unit test / coverage reports
 cover/
 .coverage*
 !.coveragerc
 .tox
-nosetests.xml
-.testrepository
+.stestr
 .venv
 
-# Translations
-*.mo
-
-# Mr Developer
-.mr.developer.cfg
-.project
-.pydevproject
-
-# Complexity
-output/*.html
-output/*/index.html
-
 # Sphinx
 doc/build
 
@@ -49,10 +30,5 @@ doc/build
 AUTHORS
 ChangeLog
 
-# Editors
-*~
-.*.swp
-.*sw?
-
 # Files created by releasenotes build
-releasenotes/build
\ No newline at end of file
+releasenotes/build
diff --git a/.stestr.conf b/.stestr.conf
new file mode 100644
index 0000000..ac0bd9e
--- /dev/null
+++ b/.stestr.conf
@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./whereto/tests
+top_dir=./
diff --git a/.testr.conf b/.testr.conf
deleted file mode 100644
index 6d83b3c..0000000
--- a/.testr.conf
+++ /dev/null
@@ -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
diff --git a/test-requirements.txt b/test-requirements.txt
index 540b720..e1c486c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,10 +1,5 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
-
 hacking>=3.0.1,<3.1.0 # Apache-2.0
-
 coverage>=4.0,!=4.4 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
-testrepository>=0.0.18  # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
+stestr>=2.0.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index f0f7f84..1849abe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,30 +1,32 @@
 [tox]
 minversion = 3.1.1
 envlist = py38,pep8
-skipsdist = True
-ignore_basepython_conflict = True
+skipsdist = true
+ignore_basepython_conflict = true
 
 [testenv]
 basepython = python3
-usedevelop = True
+usedevelop = true
 setenv =
-    VIRTUAL_ENV={envdir}
-    PYTHONWARNINGS=default::DeprecationWarning
+  LANGUAGE=en_US
+  LC_ALL=en_US.utf-8
+  OS_STDOUT_CAPTURE=1
+  OS_STDERR_CAPTURE=1
+  OS_TEST_TIMEOUT=60
+  PYTHONDONTWRITEBYTECODE=1
+  PYTHONWARNINGS=default::DeprecationWarning
 deps =
-       -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-       -r{toxinidir}/test-requirements.txt
-       -r{toxinidir}/requirements.txt
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt
 commands =
-  python setup.py test --coverage --coverage-package-name=whereto --slowest --testr-args='{posargs}'
-  coverage report --show-missing
+  stestr run {posargs}
+  stestr slowest
 
 [testenv:pep8]
 commands = flake8 {posargs}
 
 [testenv:venv]
-# The sphinxcontrib.autoprogram extension requires python 3's version
-# of argparse, so force python 3 here to ensure the check job that
-# builds the docs on OpenStack infrastructure uses python 3.
 commands = {posargs}
 
 [testenv:bindep]
@@ -32,25 +34,35 @@ deps = bindep
 commands = bindep test
 
 [testenv:cover]
-commands = python setup.py test --coverage --testr-args='{posargs}'
+setenv =
+  {[testenv]setenv}
+  PYTHON=coverage run --source nova --parallel-mode
+commands =
+  coverage erase
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
+  coverage report
 
 [testenv:docs]
-deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-       -r{toxinidir}/doc/requirements.txt
+deps =
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -r{toxinidir}/doc/requirements.txt
 commands =
-   sphinx-build --keep-going -b html -W doc/source doc/build/html
+  sphinx-build -a -E -W --keep-going -b html doc/source doc/build/html
 
 [testenv:releasenotes]
+envdir = {toxworkdir}/docs
 deps = {[testenv:docs]deps}
 commands =
-  sphinx-build -a -E -W -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
+  sphinx-build -a -E -W --keep-going -b html releasenotes/source releasenotes/build/html
 
 [testenv:debug]
 commands = oslo_debug_helper {posargs}
 
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.
-
 show-source = True
 ignore = E123,E125
 builtins = _