Attempt to test using bats / drone

test.bats

@@ -0,0 +1,15 @@
+#!/usr/bin/env bats
+
+@test "docker is available" {
+    command -v docker
+}
+
+@test "abra is executable" {
+    abra --help
+}
+
+@test "abra server add/rm works" {
+    abra server add swarm.example.com user 222
+    docker context ls | grep swarm.example.com
+    abra server rm swarm.example.com
+}