add basic matchByAddress test

checks both mac address and ip address cases

network/net_test.go

@@ -86,3 +86,35 @@ func TestFindInterfaceByName(t *testing.T) {
 		t.Error("unable to find a given interface by name to build endpoint")
 	}
 }
+
+func TestMatchByAddress(t *testing.T) {
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		t.Error(err)
+	}
+	if len(ifaces) <= 0 {
+		t.Error("Unable to find any network interfaces to run test with.")
+	}
+	var exampleIface net.Interface
+	// emulate libpcap's pcap_lookupdev function to find
+	// default interface to test with ( maybe could use loopback ? )
+	for _, iface := range ifaces {
+		if iface.HardwareAddr != nil {
+			exampleIface = iface
+			break
+		}
+	}
+	// check match by mac address
+	if !matchByAddress(exampleIface, exampleIface.HardwareAddr.String()) {
+		t.Error("unable to verify a match with a given interface and mac address")
+	}
+	addrs, err := exampleIface.Addrs()
+	if err != nil || len(addrs) <= 0 {
+		t.Error("Unable to find any ip addresses to run test with interface:", exampleIface.Name)
+
+	}
+	// check match by ip address
+	if !matchByAddress(exampleIface, addrs[0].String()) {
+		t.Error("unable to verify a match with a given interface and ip address")
+	}
+}