diff --git a/.sig/manifest.8E47A1EC35A1551D.asc b/.sig/manifest.8E47A1EC35A1551D.asc
index 81015f9..1803707 100644
--- a/.sig/manifest.8E47A1EC35A1551D.asc
+++ b/.sig/manifest.8E47A1EC35A1551D.asc
@@ -1,16 +1,16 @@
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diff --git a/.sig/manifest.txt b/.sig/manifest.txt
index d3f42b5..d437736 100644
--- a/.sig/manifest.txt
+++ b/.sig/manifest.txt
@@ -1,3 +1,7 @@
 64263feac7b00952e9ec3b6c1fd11316faa58ff673c6bd085fac9f6f8d8389f6 .gitignore
+6be935105cf23a76df12868caf56e52f95f1b9fc64645b1079eb7a07cc8682a3 Makefile
 f19d267e4aa6bf82d5416891697a2a81a574efdddecf5c54e3a8a77c207013fa README.md
 bf3492ca7625d9ac199678cf2828253e5968a87c5c444ec92e2a90ed1cbbac49 sig
+fe58cbd410c8fe1c3086447b6a0187d6f42b536ab34347e523373a9e92a9421b test/Dockerfile
+38b283eecd2ce8c7793d7290b6eb7f629d483a8333687d0a6dbb9a361c039bba test/test.bats
+4e87988899634e85354372f18b26d778a5f60f921ebee1b8c543477ce9787aa3 test/test_helper.bash
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..bf1d7c5
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,24 @@
+.PHONY:
+test: test-image
+	docker run \
+		--rm \
+		--interactive \
+		--volume $(PWD)/:/home/test/ \
+		local/sig-test \
+		bats test/test.bats
+
+.PHONY: test-image
+test-image:
+	docker build \
+		--tag local/sig-test \
+		--file $(PWD)/test/Dockerfile \
+		$(PWD)
+
+.PHONY:
+test-shell: test-shell
+	docker run \
+		--rm \
+		--interactive \
+		--volume $(PWD)/:/home/test/ \
+		local/sig-test \
+		bash
diff --git a/test/Dockerfile b/test/Dockerfile
new file mode 100644
index 0000000..d232826
--- /dev/null
+++ b/test/Dockerfile
@@ -0,0 +1,11 @@
+FROM debian:buster
+
+RUN apt-get update && \
+    apt-get install -y --force-yes bats gnupg openssl && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+RUN useradd -m test
+
+USER test
+
+WORKDIR /home/test
diff --git a/test/test.bats b/test/test.bats
new file mode 100644
index 0000000..4bfd008
--- /dev/null
+++ b/test/test.bats
@@ -0,0 +1,6 @@
+load test_helper
+
+@test "Outputs help if run without arguments" {
+	run ./sig
+	[ "$status" -eq 0 ]
+}
diff --git a/test/test_helper.bash b/test/test_helper.bash
new file mode 100644
index 0000000..ae963f7
--- /dev/null
+++ b/test/test_helper.bash
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+setup(){
+	echo "running setup"
+}
+
+teardown(){
+	echo "running teardown"
+}
+