func TestMerge(t *testing.T) {
var (
hostID = "xyz"
src = newMockSource([]byte{}, nil)
on = time.Millisecond
off = time.Millisecond
rpt = report.MakeReport()
p = sniff.Packet{
SrcIP: "1.0.0.0",
SrcPort: "1000",
DstIP: "2.0.0.0",
DstPort: "2000",
Network: 512,
Transport: 256,
}
_, ipnet, _ = net.ParseCIDR(p.SrcIP + "/24") // ;)
localNets = report.Networks([]*net.IPNet{ipnet})
)
sniff.New(hostID, localNets, src, on, off).Merge(p, &rpt)
var (
srcEndpointNodeID = report.MakeEndpointNodeID(hostID, p.SrcIP, p.SrcPort)
dstEndpointNodeID = report.MakeEndpointNodeID(hostID, p.DstIP, p.DstPort)
)
if want, have := (report.Topology{
Nodes: report.Nodes{
srcEndpointNodeID: report.MakeNode(srcEndpointNodeID).WithEdge(dstEndpointNodeID, report.EdgeMetadata{
EgressPacketCount: newu64(1),
EgressByteCount: newu64(256),
}),
dstEndpointNodeID: report.MakeNode(dstEndpointNodeID),
},
}), rpt.Endpoint; !reflect.DeepEqual(want, have) {
t.Errorf("%s", test.Diff(want, have))
}
var (
srcAddressNodeID = report.MakeAddressNodeID(hostID, p.SrcIP)
dstAddressNodeID = report.MakeAddressNodeID(hostID, p.DstIP)
)
if want, have := (report.Topology{
Nodes: report.Nodes{
srcAddressNodeID: report.MakeNode(srcAddressNodeID).WithEdge(dstAddressNodeID, report.EdgeMetadata{
EgressPacketCount: newu64(1),
EgressByteCount: newu64(512),
}),
dstAddressNodeID: report.MakeNode(dstAddressNodeID),
},
}), rpt.Address; !reflect.DeepEqual(want, have) {
t.Errorf("%s", test.Diff(want, have))
}
}
func TestSnifferShutdown(t *testing.T) {
var (
hostID = "abcd"
src = newMockSource([]byte{}, nil)
on = time.Millisecond
off = time.Millisecond
s = sniff.New(hostID, report.Networks{}, src, on, off)
)
// Stopping the source should terminate the sniffer.
src.Close()
time.Sleep(10 * time.Millisecond)
// Try to get a report from the sniffer. It should block forever, as the
// loop goroutine should have exited.
report := make(chan struct{})
go func() { _, _ = s.Report(); close(report) }()
select {
case <-time.After(time.Millisecond):
case <-report:
t.Errorf("shouldn't get report after Close")
}
}