diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e07a4d3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+# Running tests creates this completion dump file.
+tests/.zcompdump
+
+# Test failure reports
+tests/*.t.err
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..fe384ca
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,7 @@
+.PHONY: tests itests
+
+tests:
+	ZDOTDIR="${PWD}/tests" cram --shell=zsh tests
+
+itests:
+	cram -i --shell=zsh tests
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..5211806
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+# Published version of cram v0.5 does not have the --shell option.
+https://bitbucket.org/brodie/cram/get/8f15beaf3a8d.tar.bz2
diff --git a/tests/.zshenv b/tests/.zshenv
new file mode 100644
index 0000000..68118e9
--- /dev/null
+++ b/tests/.zshenv
@@ -0,0 +1,10 @@
+# zshrc file written for antigen's tests. Might not be a good one for daily use.
+
+# See cram's documentation for some of the variables used below.
+
+export ANTIGEN_REPO_CACHE="$TMP/dot-antigen/cache"
+export ANTIGEN_BUNDLE_DIR="$TMP/dot-antigen/bundle"
+
+rm "$TESTDIR/.zcompdump"
+
+source "$TESTDIR/../antigen.zsh"
diff --git a/tests/main.t b/tests/main.t
new file mode 100644
index 0000000..2dbf2d6
--- /dev/null
+++ b/tests/main.t
@@ -0,0 +1,3 @@
+Load antigen
+
+  $ bundle-cleanup