1 files changed, 17 insertions, 0 deletions
diff --git a/caesar_test.go b/caesar_test.go
new file mode 100644
index 0000000..e7dc3c0
--- /dev/null
+++ b/caesar_test.go
@@ -0,0 +1,17 @@
+package caesar
+
+import (
+	"testing"
+)
+
+func TestCaesar(t *testing.T) {
+	msg := "Attack at dawn"
+	encoded := Encode(msg)
+	if encoded == msg {
+		t.Errorf("expected ciphertext and plaintext to differ")
+	}
+	decoded := Decode(encoded)
+	if decoded != msg {
+		t.Errorf("expected recovered plaintext to match message, but got: %s", decoded)
+	}
+}