Add autopkgtest

debian/changelog

@@ -1,3 +1,9 @@
+python-click (8.0.3-2) UNRELEASED; urgency=medium
+
+  * Add autopkgtest
+
+ -- Sandro Tosi <morph@debian.org>  Sun, 02 Jan 2022 21:19:45 -0500
+
 python-click (8.0.3-1) unstable; urgency=medium
 
   * New upstream release

debian/tests/control

@@ -0,0 +1,4 @@
+Tests: unittests
+Depends: @,
+         @builddeps@,
+Restrictions: allow-stderr

debian/tests/unittests

@@ -0,0 +1,18 @@
+#!/bin/sh
+set -efu
+
+pys="$(py3versions -r 2> /dev/null)"
+
+cp -a setup.cfg tests "$AUTOPKGTEST_TMP"
+
+# needed by `test_expand_args`
+mkdir $AUTOPKGTEST_TMP/docs
+cp -a docs/conf.py $AUTOPKGTEST_TMP/docs
+cp -a setup.cfg "$AUTOPKGTEST_TMP"
+
+cd "$AUTOPKGTEST_TMP"
+
+for py in $pys; do
+  echo "=== $py ==="
+  $py -m pytest tests 2>&1
+done