1 files changed, 6 insertions, 12 deletions
diff --git a/tox.ini b/tox.ini
index 8de3055..e481ab2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,19 +19,13 @@ extras =
     {env:WITH_EXTRAS:}
 commands =
     pipenv install --dev --skip-lock
-    pytest --doctest-modules {envsitepackagesdir}/natsort
-    pytest README.rst docs/source/intro.rst docs/source/examples.rst docs/source/howitworks.rst
-    pytest --flakes --pep8 --tb=short --cov {envsitepackagesdir}/natsort --cov-report term-missing
-
-[testenv:py27]
-commands =
-    pipenv install --dev --skip-lock
-    pytest --doctest-modules {envsitepackagesdir}/natsort
+    # Only run How It Works doctest on Python 3.6.
+    py36: {envpython} -m doctest -o IGNORE_EXCEPTION_DETAIL docs/source/howitworks.rst
+    # Other doctests are run for all pythons.
     pytest README.rst docs/source/intro.rst docs/source/examples.rst
-    pytest --flakes --pep8 --tb=short --cov {envsitepackagesdir}/natsort --cov-report term-missing
-
-[testenv:pypy]
-commands = {[testenv:py27]commands}
+    pytest --doctest-modules {envsitepackagesdir}/natsort
+    # Full test suite. Allow the user to pass command-line objects.
+    pytest --flakes --pep8 --tb=short {posargs:}
 
 # Build documentation.
 [testenv:docs]