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package serf
import (
"log"
"os"
"strings"
"testing"
"time"
)
func TestInternalQueryName(t *testing.T) {
name := internalQueryName(conflictQuery)
if name != "_serf_conflict" {
t.Fatalf("bad: %v", name)
}
}
func TestSerfQueries_Passthrough(t *testing.T) {
serf := &Serf{}
logger := log.New(os.Stderr, "", log.LstdFlags)
outCh := make(chan Event, 4)
shutdown := make(chan struct{})
defer close(shutdown)
eventCh, err := newSerfQueries(serf, logger, outCh, shutdown)
if err != nil {
t.Fatalf("err: %v", err)
}
// Push a user event
eventCh <- UserEvent{LTime: 42, Name: "foo"}
// Push a query
eventCh <- &Query{LTime: 42, Name: "foo"}
// Push a query
eventCh <- MemberEvent{Type: EventMemberJoin}
// Should get passed through
for i := 0; i < 3; i++ {
select {
case <-outCh:
case <-time.After(100 * time.Millisecond):
t.Fatalf("time out")
}
}
}
func TestSerfQueries_Ping(t *testing.T) {
serf := &Serf{}
logger := log.New(os.Stderr, "", log.LstdFlags)
outCh := make(chan Event, 4)
shutdown := make(chan struct{})
defer close(shutdown)
eventCh, err := newSerfQueries(serf, logger, outCh, shutdown)
if err != nil {
t.Fatalf("err: %v", err)
}
// Send a ping
eventCh <- &Query{LTime: 42, Name: "_serf_ping"}
// Should not get passed through
select {
case <-outCh:
t.Fatalf("Should not passthrough query!")
case <-time.After(50 * time.Millisecond):
}
}
func TestSerfQueries_Conflict_SameName(t *testing.T) {
serf := &Serf{config: &Config{NodeName: "foo"}}
logger := log.New(os.Stderr, "", log.LstdFlags)
outCh := make(chan Event, 4)
shutdown := make(chan struct{})
defer close(shutdown)
eventCh, err := newSerfQueries(serf, logger, outCh, shutdown)
if err != nil {
t.Fatalf("err: %v", err)
}
// Query for our own name
eventCh <- &Query{Name: "_serf_conflict", Payload: []byte("foo")}
// Should not passthrough OR respond
select {
case <-outCh:
t.Fatalf("Should not passthrough query!")
case <-time.After(50 * time.Millisecond):
}
}
func TestSerfQueries_estimateMaxKeysInListKeyResponseFactor(t *testing.T) {
q := Query{id: 0, serf: &Serf{config: &Config{NodeName: "", QueryResponseSizeLimit: DefaultConfig().QueryResponseSizeLimit * 10}}}
resp := nodeKeyResponse{Keys: []string{}}
for i := 0; i <= q.serf.config.QueryResponseSizeLimit/minEncodedKeyLength; i++ {
resp.Keys = append(resp.Keys, "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=")
}
found := 0
for i := len(resp.Keys); i >= 0; i-- {
buf, err := encodeMessage(messageKeyResponseType, resp)
if err != nil {
t.Fatal(err)
}
qresp := q.createResponse(buf)
raw, err := encodeMessage(messageQueryResponseType, qresp)
if err != nil {
t.Fatal(err)
}
if err = q.checkResponseSize(raw); err != nil {
resp.Keys = resp.Keys[0:i]
continue
}
found = i
break
}
if found == 0 {
t.Fatal("Didn't find anything!")
}
t.Logf("max keys in response with %d bytes: %d", q.serf.config.QueryResponseSizeLimit, len(resp.Keys))
t.Logf("factor: %d", q.serf.config.QueryResponseSizeLimit/len(resp.Keys))
}
func TestSerfQueries_keyListResponseWithCorrectSize(t *testing.T) {
s := serfQueries{logger: log.New(os.Stderr, "", log.LstdFlags)}
q := Query{id: 0, serf: &Serf{config: &Config{NodeName: "", QueryResponseSizeLimit: 1024}}}
cases := []struct {
resp nodeKeyResponse
expected int
hasMsg bool
}{
{expected: 0, hasMsg: false, resp: nodeKeyResponse{}},
{expected: 1, hasMsg: false, resp: nodeKeyResponse{Keys: []string{"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg="}}},
// has 50 keys which makes the response bigger than 1024 bytes.
{expected: 18, hasMsg: true, resp: nodeKeyResponse{Keys: []string{
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
"KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=", "KfCPZAKdgHUOdb202afZfE8EbdZqj4+ReTbfJUkfKsg=",
}}},
}
for _, c := range cases {
r := c.resp
_, _, err := s.keyListResponseWithCorrectSize(&q, &r)
if err != nil {
t.Error(err)
continue
}
if len(r.Keys) != c.expected {
t.Errorf("Expected %d vs %d", c.expected, len(r.Keys))
}
if c.hasMsg && !strings.Contains(r.Message, "truncated") {
t.Error("truncation message should be set")
}
}
}
|
