func TestErrorHandling(t *testing.T) {
normalSetup()
exec.AddTestResult("/sbin/ip link del dummy0", "", fmt.Errorf("Device \"%s\" does not exist", "dummy0"))
itx := NewTransaction("dummy0")
itx.DeleteLink()
err := itx.EndTransaction()
if err == nil {
t.Fatalf("Failed to get expected error")
}
exec.AddTestResult("/sbin/ip link del dummy0", "", fmt.Errorf("Device \"%s\" does not exist", "dummy0"))
exec.AddTestResult("/sbin/ip link add dummy0 type dummy", "", nil)
itx = NewTransaction("dummy0")
itx.DeleteLink()
itx.IgnoreError()
itx.AddLink("type", "dummy")
err = itx.EndTransaction()
if err != nil {
t.Fatalf("Unexpectedly got error after IgnoreError(): %v", err)
}
exec.AddTestResult("/sbin/ip link add dummy0 type dummy", "", fmt.Errorf("RTNETLINK answers: Operation not permitted"))
// other commands do not get run due to previous error
itx = NewTransaction("dummy0")
itx.AddLink("type", "dummy")
itx.SetLink("up")
itx.DeleteLink()
err = itx.EndTransaction()
if err == nil {
t.Fatalf("Failed to get expected error")
}
}
func TestGetAddresses(t *testing.T) {
normalSetup()
exec.AddTestResult("/sbin/ip addr show dev lo", `1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
`, nil)
itx := NewTransaction("lo")
addrs, err := itx.GetAddresses()
if err != nil {
t.Fatalf("Failed to get addresses for 'lo': %v", err)
}
if len(addrs) != 1 {
t.Fatalf("'lo' has unexpected len(addrs) %d", len(addrs))
}
if addrs[0] != "127.0.0.1/8" {
t.Fatalf("'lo' has unexpected address %s", addrs[0])
}
err = itx.EndTransaction()
if err != nil {
t.Fatalf("Transaction unexpectedly returned error: %v", err)
}
exec.AddTestResult("/sbin/ip addr show dev eth0", `2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether aa:bb:cc:dd:ee:ff brd ff:ff:ff:ff:ff:ff
inet 192.168.1.10/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 81296sec preferred_lft 81296sec
inet 192.168.1.152/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 81296sec preferred_lft 81296sec
`, nil)
itx = NewTransaction("eth0")
addrs, err = itx.GetAddresses()
if err != nil {
t.Fatalf("Failed to get addresses for 'eth0': %v", err)
}
if len(addrs) != 2 {
t.Fatalf("'eth0' has unexpected len(addrs) %d", len(addrs))
}
if addrs[0] != "192.168.1.10/24" || addrs[1] != "192.168.1.152/24" {
t.Fatalf("'eth0' has unexpected addresses %v", addrs)
}
err = itx.EndTransaction()
if err != nil {
t.Fatalf("Transaction unexpectedly returned error: %v", err)
}
exec.AddTestResult("/sbin/ip addr show dev wlan0", "", fmt.Errorf("Device \"%s\" does not exist", "wlan0"))
itx = NewTransaction("wlan0")
addrs, err = itx.GetAddresses()
if err == nil {
t.Fatalf("Allegedly got addresses for non-existent link: %v", addrs)
}
err = itx.EndTransaction()
if err == nil {
t.Fatalf("Transaction unexpectedly returned no error")
}
}
func TestTransactionSuccess(t *testing.T) {
normalSetup()
exec.AddTestResult("/usr/bin/ovs-ofctl -O OpenFlow13 add-flow br0 flow1", "", nil)
exec.AddTestResult("/usr/bin/ovs-ofctl -O OpenFlow13 add-flow br0 flow2", "", nil)
otx := NewTransaction("br0")
otx.AddFlow("flow1")
otx.AddFlow("flow2")
err := otx.EndTransaction()
if err != nil {
t.Fatalf("Unexpected error from command: %v", err)
}
}
func TestDumpFlows(t *testing.T) {
normalSetup()
exec.AddTestResult("/usr/bin/ovs-ofctl -O OpenFlow13 dump-flows br0", `OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x0, duration=13271.779s, table=0, n_packets=0, n_bytes=0, priority=100,ip,nw_dst=192.168.1.0/24 actions=set_field:0a:7b:e6:19:11:cf->eth_dst,output:2
cookie=0x0, duration=13271.776s, table=0, n_packets=1, n_bytes=42, priority=100,arp,arp_tpa=192.168.1.0/24 actions=set_field:10.19.17.34->tun_dst,output:1
cookie=0x3, duration=13267.277s, table=0, n_packets=788539827, n_bytes=506520926762, priority=100,ip,nw_dst=192.168.2.2 actions=output:3
cookie=0x0, duration=13284.668s, table=0, n_packets=505, n_bytes=21210, priority=100,arp,arp_tpa=192.168.2.1 actions=output:2
cookie=0x0, duration=13284.666s, table=0, n_packets=0, n_bytes=0, priority=100,ip,nw_dst=192.168.2.1 actions=output:2
cookie=0x3, duration=13267.276s, table=0, n_packets=506, n_bytes=21252, priority=100,arp,arp_tpa=192.168.2.2 actions=output:3
cookie=0x0, duration=13284.67s, table=0, n_packets=782815611, n_bytes=179416494325, priority=50 actions=output:2
`, nil)
otx := NewTransaction("br0")
flows, err := otx.DumpFlows()
otx.EndTransaction()
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if strings.Contains(flows[0], "OFPST") {
t.Fatalf("DumpFlows() did not filter results correctly")
}
if len(flows) != 7 {
t.Fatalf("Unexpected number of flows (%d)", len(flows))
}
}
func TestGetRoutes(t *testing.T) {
const (
l1 = "default via 192.168.1.1 proto static metric 1024 "
l2 = "1.2.3.4 via 192.168.1.1 proto static metric 10 "
l3 = "192.168.1.0/24 proto kernel scope link src 192.168.1.15 "
)
normalSetup()
exec.AddTestResult("/sbin/ip route show dev wlp3s0", l1+"\n"+l2+"\n"+l3+"\n", nil)
itx := NewTransaction("wlp3s0")
routes, err := itx.GetRoutes()
if err != nil {
t.Fatalf("Failed to get routes for 'wlp3s0': %v", err)
}
if len(routes) != 3 {
t.Fatalf("'wlp3s0' has unexpected len(routes) %d", len(routes))
}
if routes[0] != l1 {
t.Fatalf("Unexpected first route %s", routes[0])
}
if routes[1] != l2 {
t.Fatalf("Unexpected second route %s", routes[1])
}
if routes[2] != l3 {
t.Fatalf("Unexpected third route %s", routes[2])
}
err = itx.EndTransaction()
if err != nil {
t.Fatalf("Transaction unexpectedly returned error: %v", err)
}
exec.AddTestResult("/sbin/ip route show dev wlan0", "", fmt.Errorf("Device \"%s\" does not exist", "wlan0"))
itx = NewTransaction("wlan0")
routes, err = itx.GetRoutes()
if err == nil {
t.Fatalf("Allegedly got routes for non-existent link: %v", routes)
}
err = itx.EndTransaction()
if err == nil {
t.Fatalf("Transaction unexpectedly returned no error")
}
}
func TestTransactionFailure(t *testing.T) {
normalSetup()
exec.AddTestResult("/usr/bin/ovs-ofctl -O OpenFlow13 add-flow br0 flow1", "", fmt.Errorf("Something bad happened"))
otx := NewTransaction("br0")
otx.AddFlow("flow1")
otx.AddFlow("flow2")
err := otx.EndTransaction()
if err == nil {
t.Fatalf("Failed to get expected error")
}
}