From 74239cac5d975b5b805cbeba395dbc7a92882066 Mon Sep 17 00:00:00 2001
From: Miro Hrončok <miro@hroncok.cz>
Date: Feb 07 2020 17:39:54 +0000
Subject: [PATCH 1/2] Assert that tox uses the appropriate Python version


---

diff --git a/smoke/venv.sh b/smoke/venv.sh
index 6744a3a..725c948 100755
--- a/smoke/venv.sh
+++ b/smoke/venv.sh
@@ -86,6 +86,23 @@ set -u
 
 # use it with tox
 [[ "$TOX" != "true" ]] && exit 0
+if [[ $PYTHON == python* ]]; then
+    export TOXENV=py${VERSION/./}
+else
+    export TOXENV=$PYTHON
+fi
+
+cat > tox.ini << EOF
+[tox]
+skipsdist = True
+[testenv]
+commands = python -c 'import sys; print(sys.version)'
+EOF
+
+# Tests that the Python version used in tox is really the Python version we want
+tox | tee toxlog
+grep "^$VERSION\.[0-9]" toxlog
+
 cat > tox.ini << EOF
 [tox]
 skipsdist = True
@@ -94,8 +111,5 @@ deps = pytest
 commands = python -m pytest -v test_foo.py
 EOF
 
-if [[ $PYTHON == python* ]]; then
-    tox -e py${VERSION/./}
-else
-    tox -e $PYTHON
-fi
+# A more complex example with pytest
+tox

From 38d9a441ce730c296880558e17960492e450b8b6 Mon Sep 17 00:00:00 2001
From: Miro Hrončok <miro@hroncok.cz>
Date: Feb 07 2020 17:39:54 +0000
Subject: [PATCH 2/2] Test with Python 3.9 as well


---

diff --git a/tests.yml b/tests.yml
index c55eca8..e308377 100644
--- a/tests.yml
+++ b/tests.yml
@@ -28,6 +28,9 @@
     - smoke38:
         dir: smoke
         run: VERSION=3.8 METHOD=venv ./venv.sh
+    - smoke39:
+        dir: smoke
+        run: VERSION=3.9 METHOD=venv ./venv.sh
     - smokepypy:
         dir: smoke
         run: VERSION=2.7 METHOD=virtualenv PYTHON=pypy ./venv.sh
@@ -51,6 +54,7 @@
     - python36
     - python37
     - python38
+    - python39
     - pypy
     - pypy3
     - python2-devel