Add shippable tests. (#4)

tests/utils/shippable/units.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -o pipefail -eux
+
+declare -a args
+IFS='/:' read -ra args <<< "$1"
+
+version="${args[1]}"
+group="${args[2]}"
+
+if [[ "${COVERAGE:-}" == "--coverage" ]]; then
+    timeout=90
+else
+    timeout=30
+fi
+
+ansible-test env --timeout "${timeout}" --color -v
+
+# shellcheck disable=SC2086
+ansible-test units --color -v --docker default --python "${version}" ${COVERAGE:+"$COVERAGE"} ${CHANGED:+"$CHANGED"} \