Begin work on full device<->device unit-test

To simulate a full interaction between two WireGuard
instances without networking, using dummy instances of the interfaces

device_test.go

@@ -0,0 +1,43 @@
+package main
+
+/* Create two device instances and simulate full WireGuard interaction
+ * without network dependencies
+ */
+
+import "testing"
+
+func TestDevice(t *testing.T) {
+
+	// prepare tun devices for generating traffic
+
+	tun1, err := CreateDummyTUN("tun1")
+	if err != nil {
+		t.Error("failed to create tun:", err.Error())
+	}
+
+	tun2, err := CreateDummyTUN("tun2")
+	if err != nil {
+		t.Error("failed to create tun:", err.Error())
+	}
+
+	println(tun1)
+	println(tun2)
+
+	// prepare endpoints
+
+	end1, err := CreateDummyEndpoint()
+	if err != nil {
+		t.Error("failed to create endpoint:", err.Error())
+	}
+
+	end2, err := CreateDummyEndpoint()
+	if err != nil {
+		t.Error("failed to create endpoint:", err.Error())
+	}
+
+	println(end1)
+	println(end2)
+
+	// create binds
+
+}