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server: add filterpath() unittest

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Test a scenario where peer A and B advertized the same prefix, and A's
one was best then peer A withdraws. peer B should get withdrawal.

Signed-off-by: FUJITA Tomonori <[email protected]>
This commit is contained in:
FUJITA Tomonori
2017-03-05 06:10:30 +09:00
parent 0cfb8f65a0
commit d104f1ec8f
1 changed files with 53 additions and 0 deletions
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server/server_test.go
+53
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@@ -21,6 +21,7 @@ import (
"github.com/osrg/gobgp/packet/bgp"
"github.com/osrg/gobgp/table"
"github.com/stretchr/testify/assert"
"net"
"runtime"
"testing"
"time"
@@ -182,3 +183,55 @@ func TestNumGoroutineWithAddDeleteNeighbor(t *testing.T) {
time.Sleep(time.Second * 5)
assert.Equal(num, runtime.NumGoroutine())
}
func TestFilterpath(t *testing.T) {
p1As := uint32(65001)
p2As := uint32(65002)
rib := table.NewTableManager([]bgp.RouteFamily{bgp.RF_IPv4_UC})
newPeerandInfo := func(as uint32, address string) (*Peer, *table.PeerInfo) {
p := NewPeer(
&config.Global{Config: config.GlobalConfig{As: 65000}},
&config.Neighbor{Config: config.NeighborConfig{PeerAs: as, NeighborAddress: address}},
rib,
&table.RoutingPolicy{})
p.fsm.rfMap[bgp.RF_IPv4_UC] = true
return p, &table.PeerInfo{AS: as, Address: net.ParseIP(address)}
}
p1, pi1 := newPeerandInfo(p1As, "192.168.0.1")
p2, pi2 := newPeerandInfo(p2As, "192.168.0.2")
nlri := bgp.NewIPAddrPrefix(24, "10.10.10.0")
pa1 := []bgp.PathAttributeInterface{bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{p1As})}), bgp.NewPathAttributeLocalPref(200)}
pa2 := []bgp.PathAttributeInterface{bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{p2As})})}
path1 := table.NewPath(pi1, nlri, false, pa1, time.Now(), false)
path2 := table.NewPath(pi2, nlri, false, pa2, time.Now(), false)
cal := func(l []*table.Path) (*table.Path, *table.Path) {
news, olds, _ := rib.ProcessPaths([]string{table.GLOBAL_RIB_NAME}, l)
assert.Equal(t, len(news), 1)
for idx, path := range news[table.GLOBAL_RIB_NAME] {
var old *table.Path
if olds != nil {
old = olds[table.GLOBAL_RIB_NAME][idx]
}
return path, old
}
return nil, nil
}
new, old := cal([]*table.Path{path1, path2})
assert.Equal(t, new, path1)
filterpath(p1, new, old)
filterpath(p2, new, old)
new, old = cal([]*table.Path{path1.Clone(true)})
assert.Equal(t, new, path2)
// p1 and p2 advertized the same prefix and p1's was best. Then p1 withdraw it, so p2 must get withdawal.
path := filterpath(p2, new, old)
assert.NotNil(t, path)
assert.True(t, path.IsWithdraw)
// p1 should get the new best (from p2)
assert.Equal(t, filterpath(p1, new, old), path2)
}