package packetAnalyzer import ( "testing" "github.com/google/gopacket" "github.com/google/gopacket/pcap" ) func TestPacket(t *testing.T) { var Handle *pcap.Handle filename := "foo" maxNumPackets := 2 ifLocalIPKnown := false localIP := "143.198.72.237" ch := make(chan gopacket.Packet) done := make(chan struct{}) go PacketBreeze(ch, done, maxNumPackets, localIP, ifLocalIPKnown, filename) defer Handle.Close() packetSource := gopacket.NewPacketSource(Handle, Handle.LinkType()) loop: for packet := range packetSource.Packets() { select { case ch <- packet: case <-done: close(ch) close(done) break loop } } }