Add a smoke test

tests/test_imports.yml

@@ -0,0 +1,15 @@
+---
+- hosts: localhost
+  roles:
+    - role: standard-test-basic
+  tags:
+    - classic
+    - atomic
+    - container
+  tasks:
+    - name: Test block
+      block:
+        - name: Assert all top-level sub-modules can be imported in Python 3
+          shell: python3 -c "from requests import *"
+        - name: Assert all top-level sub-modules can be imported in Python 2
+          shell: python2 -c "from requests import *"

tests/tests.yml

@@ -0,0 +1 @@
+- import_playbook: test_imports.yml