diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..69bc65b
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,18 @@
+version: '2'
+
+services:
+  development:
+    build:
+      context: .
+    volumes:
+      - .:/opt/src/getssld
+      - /tmp/testing:/ssl
+    entrypoint: /bin/ash
+
+  bats:
+    build:
+      context: ../../bats-core/
+    image: bats:latest
+    volumes:
+      - .:/code
+    command: /code/test/bats.sh
diff --git a/test/bats.sh b/test/bats.sh
new file mode 100644
index 0000000..5683371
--- /dev/null
+++ b/test/bats.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bats
+
+@test "addition using bc" {
+  result="$(echo 2+2 | bc)"
+  [ "$result" -eq 4 ]
+}
+
+@test "addition using dc" {
+  result="$(echo 2 2+p | dc)"
+  [ "$result" -eq 4 ]
+}