aliases: Fuzz testing

internal/aliases/fuzz.go

@@ -0,0 +1,22 @@
+// Fuzz testing for package aliases.
+
+// +build gofuzz
+
+package aliases
+
+import "bytes"
+
+func Fuzz(data []byte) int {
+	interesting := 0
+	aliases, _ := parseReader("domain", bytes.NewReader(data))
+
+	// Mark cases with actual aliases as more interesting.
+	for _, rcpts := range aliases {
+		if len(rcpts) > 0 {
+			interesting = 1
+			break
+		}
+	}
+
+	return interesting
+}