func TestFileCustomRule(t *testing.T) {
tqsc := tabletserver.NewTestQueryServiceControl()
var qrs *tabletserver.QueryRules
rulepath := path.Join(os.TempDir(), ".customrule.json")
// Set r1 and try to get it back
err := ioutil.WriteFile(rulepath, []byte(customRule1), os.FileMode(0644))
if err != nil {
t.Fatalf("Cannot write r1 to rule file %s, err=%v", rulepath, err)
}
fcr := NewFileCustomRule()
// Let FileCustomRule to build rule from the local file
err = fcr.Open(tqsc, rulepath)
if err != nil {
t.Fatalf("Cannot open file custom rule service, err=%v", err)
}
// Fetch query rules we built to verify correctness
qrs, _, err = fcr.GetRules()
if err != nil {
t.Fatalf("GetRules returns error: %v", err)
}
qr := qrs.Find("r1")
if qr == nil {
t.Fatalf("Expect custom rule r1 to be found, but got nothing, qrs=%v", qrs)
}
}
// NewTestActionAgent creates an agent for test purposes. Only a
// subset of features are supported now, but we'll add more over time.
func NewTestActionAgent(batchCtx context.Context, ts topo.Server, tabletAlias topo.TabletAlias, vtPort, grpcPort int, mysqlDaemon mysqlctl.MysqlDaemon) *ActionAgent {
agent := &ActionAgent{
QueryServiceControl: tabletserver.NewTestQueryServiceControl(),
HealthReporter: health.DefaultAggregator,
batchCtx: batchCtx,
TopoServer: ts,
TabletAlias: tabletAlias,
MysqlDaemon: mysqlDaemon,
DBConfigs: nil,
SchemaOverrides: nil,
BinlogPlayerMap: nil,
History: history.New(historyLength),
lastHealthMapCount: new(stats.Int),
_healthy: fmt.Errorf("healthcheck not run yet"),
}
if err := agent.Start(batchCtx, 0, vtPort, 0, grpcPort); err != nil {
panic(fmt.Errorf("agent.Start(%v) failed: %v", tabletAlias, err))
}
return agent
}
func TestZkCustomRule(t *testing.T) {
tqsc := tabletserver.NewTestQueryServiceControl()
setUpFakeZk(t)
zkcr := NewZkCustomRule(conn)
err := zkcr.Open(tqsc, "/zk/fake/customrules/testrules")
if err != nil {
t.Fatalf("Cannot open zookeeper custom rule service, err=%v", err)
}
var qrs *tabletserver.QueryRules
// Test if we can successfully fetch the original rule (test GetRules)
qrs, _, err = zkcr.GetRules()
if err != nil {
t.Fatalf("GetRules of ZkCustomRule should always return nil error, but we receive %v", err)
}
qr := qrs.Find("r1")
if qr == nil {
t.Fatalf("Expect custom rule r1 to be found, but got nothing, qrs=%v", qrs)
}
// Test updating rules
conn.Set("/zk/fake/customrules/testrules", customRule2, -1)
<-time.After(time.Second) //Wait for the polling thread to respond
qrs, _, err = zkcr.GetRules()
if err != nil {
t.Fatalf("GetRules of ZkCustomRule should always return nil error, but we receive %v", err)
}
qr = qrs.Find("r2")
if qr == nil {
t.Fatalf("Expect custom rule r2 to be found, but got nothing, qrs=%v", qrs)
}
qr = qrs.Find("r1")
if qr != nil {
t.Fatalf("Custom rule r1 should not be found after r2 is set")
}
// Test rule path removal
conn.Delete("/zk/fake/customrules/testrules", -1)
<-time.After(time.Second)
qrs, _, err = zkcr.GetRules()
if err != nil {
t.Fatalf("GetRules of ZkCustomRule should always return nil error, but we receive %v", err)
}
if reflect.DeepEqual(qrs, tabletserver.NewQueryRules()) {
t.Fatalf("Expect empty rule at this point")
}
// Test rule path revival
conn.Create("/zk/fake/customrules/testrules", "customrule2", 0, zookeeper.WorldACL(zookeeper.PERM_ALL))
conn.Set("/zk/fake/customrules/testrules", customRule2, -1)
<-time.After(time.Second) //Wait for the polling thread to respond
qrs, _, err = zkcr.GetRules()
if err != nil {
t.Fatalf("GetRules of ZkCustomRule should always return nil error, but we receive %v", err)
}
qr = qrs.Find("r2")
if qr == nil {
t.Fatalf("Expect custom rule r2 to be found, but got nothing, qrs=%v", qrs)
}
zkcr.Close()
}