Function TestPcapFileRead

pcap/pcap_test.go:33–118

(t *testing.T)

}

func TestPcapFileRead(t *testing.T) {
	invalidData := []byte{
		0xAB, 0xAD, 0x1D, 0xEA,
	}

	invalidPcap, err := ioutil.TempFile("", "invalid.pcap")
	if err != nil {
		t.Fatal(err)
	}
	invalidPcap.Close() // if the file is still open later, the invalid test fails with permission denied on windows
	defer os.Remove(invalidPcap.Name())

	err = ioutil.WriteFile(invalidPcap.Name(), invalidData, 0644)
	if err != nil {
		t.Fatal(err)
	}

	for _, file := range []struct {
		filename       string
		num            int
		expectedLayers []gopacket.LayerType
		err            string
	}{
		{filename: "test_loopback.pcap",
			num: 24,
			expectedLayers: []gopacket.LayerType{
				layers.LayerTypeLoopback,
				layers.LayerTypeIPv6,
				layers.LayerTypeTCP,
			},
		},
		{filename: "test_ethernet.pcap",
			num: 10,
			expectedLayers: []gopacket.LayerType{
				layers.LayerTypeEthernet,
				layers.LayerTypeIPv4,
				layers.LayerTypeTCP,
			},
		},
		{filename: "test_dns.pcap",
			num: 10,
			expectedLayers: []gopacket.LayerType{
				layers.LayerTypeEthernet,
				layers.LayerTypeIPv4,
				layers.LayerTypeUDP,
				layers.LayerTypeDNS,
			},
		},
		{filename: invalidPcap.Name(),
			num: 0,
			err: "unknown file format",
		},
	} {
		t.Logf("\n\n\n\nProcessing file %s\n\n\n\n", file.filename)

		packets := []gopacket.Packet{}
		if handle, err := OpenOffline(file.filename); err != nil {
			if file.err != "" {