func (s *AgentTestSuite) TestSetConfigApiKey(t *C) {
newConfig := *s.config
newConfig.ApiKey = "101"
data, err := json.Marshal(newConfig)
t.Assert(err, IsNil)
cmd := &proto.Cmd{
Ts: time.Now(),
User: "******",
Cmd: "SetConfig",
Service: "agent",
Data: data,
}
s.sendChan <- cmd
got := test.WaitReply(s.recvChan)
t.Assert(len(got), Equals, 1)
gotConfig := &agent.Config{}
if err := json.Unmarshal(got[0].Data, gotConfig); err != nil {
t.Fatal(err)
}
/**
* Verify new agent config in memory.
*/
expect := *s.config
expect.ApiKey = "101"
expect.Links = nil
if ok, diff := test.IsDeeply(gotConfig, &expect); !ok {
t.Logf("%+v", gotConfig)
t.Error(diff)
}
/**
* Verify new agent config in API connector.
*/
t.Check(s.api.ApiKey(), Equals, "101")
t.Check(s.api.Hostname(), Equals, agent.DEFAULT_API_HOSTNAME)
/**
* Verify new agent config on disk.
*/
data, err = ioutil.ReadFile(s.configFile)
t.Assert(err, IsNil)
gotConfig = &agent.Config{}
if err := json.Unmarshal(data, gotConfig); err != nil {
t.Fatal(err)
}
if same, diff := test.IsDeeply(gotConfig, &expect); !same {
// @todo: if expect is not ptr, IsDeeply dies with "got ptr, expected struct"
t.Logf("%+v", gotConfig)
t.Error(diff)
}
// After changing the API key, the agent's ws should NOT reconnect yet,
// but status should show that its link has changed, so sending a Reconnect
// cmd will cause agent to reconnect its ws.
gotCalled := test.WaitTrace(s.client.TraceChan)
expectCalled := []string{"Start", "Connect"}
t.Check(gotCalled, DeepEquals, expectCalled)
}
func (s *AgentTestSuite) TestSetConfigApiHostname(t *C) {
newConfig := *s.config
newConfig.ApiHostname = "http://localhost"
data, err := json.Marshal(newConfig)
t.Assert(err, IsNil)
cmd := &proto.Cmd{
Ts: time.Now(),
User: "******",
Cmd: "SetConfig",
Service: "agent",
Data: data,
}
s.sendChan <- cmd
got := test.WaitReply(s.recvChan)
t.Assert(len(got), Equals, 1)
gotConfig := &agent.Config{}
if err := json.Unmarshal(got[0].Data, gotConfig); err != nil {
t.Fatal(err)
}
/**
* Verify new agent config in memory.
*/
expect := *s.config
expect.ApiHostname = "http://localhost"
expect.Links = nil
if ok, diff := test.IsDeeply(gotConfig, &expect); !ok {
t.Logf("%+v", gotConfig)
t.Error(diff)
}
/**
* Verify new agent config in API connector.
*/
t.Check(s.api.Hostname(), Equals, "http://localhost")
t.Check(s.api.ApiKey(), Equals, "789")
/**
* Verify new agent config on disk.
*/
data, err = ioutil.ReadFile(s.configFile)
t.Assert(err, IsNil)
gotConfig = &agent.Config{}
if err := json.Unmarshal(data, gotConfig); err != nil {
t.Fatal(err)
}
if same, diff := test.IsDeeply(gotConfig, &expect); !same {
// @todo: if expect is not ptr, IsDeeply dies with "got ptr, expected struct"
t.Logf("%+v", gotConfig)
t.Error(diff)
}
// After changing the API host, the agent's ws should NOT reconnect yet,
// but status should show that its link has changed, so sending a Reconnect
// cmd will cause agent to reconnect its ws.
gotCalled := test.WaitTrace(s.client.TraceChan)
expectCalled := []string{"Start", "Connect"}
t.Check(gotCalled, DeepEquals, expectCalled)
/**
* Test Reconnect here since it's usually done after changing ApiHostname/
*/
// There is NO reply after reconnect because we can't recv cmd on one connection
// and reply on another. Instead, we should see agent try to reconnect:
connectChan := make(chan bool)
s.client.SetConnectChan(connectChan)
defer s.client.SetConnectChan(nil)
cmd = &proto.Cmd{
Ts: time.Now(),
User: "******",
Cmd: "Reconnect",
Service: "agent",
}
s.sendChan <- cmd
// Wait for agent to reconnect.
<-connectChan
connectChan <- true
gotCalled = test.WaitTrace(s.client.TraceChan)
expectCalled = []string{"Disconnect", "Connect"}
t.Check(gotCalled, DeepEquals, expectCalled)
}
func (s *AgentTestSuite) TestStartStopService(t *C) {
// To start a service, first we make a config for the service:
qanConfig := &qan.Config{
Interval: 60, // seconds
MaxSlowLogSize: 1073741824, // 1 GiB
RemoveOldSlowLogs: true,
ExampleQueries: true,
MaxWorkers: 2,
WorkerRunTime: 120, // seconds
}
// Second, the service config is encoded and encapsulated in a ServiceData:
qanConfigData, _ := json.Marshal(qanConfig)
serviceCmd := &proto.ServiceData{
Name: "qan",
Config: qanConfigData,
}
// Third and final, the service data is encoded and encapsulated in a Cmd:
serviceData, _ := json.Marshal(serviceCmd)
cmd := &proto.Cmd{
Ts: time.Now(),
User: "******",
Service: "agent",
Cmd: "StartService",
Data: serviceData,
}
// The readyChan is used by mock.MockServiceManager.Start() and Stop()
// to simulate slow starts and stops. We're not testing that here, so
// this lets the service start immediately.
s.readyChan <- true
// Send the StartService cmd to the client, then wait for the reply
// which should not have an error, indicating success.
s.sendChan <- cmd
gotReplies := test.WaitReply(s.recvChan)
if len(gotReplies) != 1 {
t.Fatal("Got Reply to Cmd:StartService")
}
reply := &proto.Reply{}
_ = json.Unmarshal(gotReplies[0].Data, reply)
if reply.Error != "" {
t.Error("No Reply.Error to Cmd:StartService; got ", reply.Error)
}
// To double-check that the agent started without error, get its status
// which should show everything is "Ready" or "Idle".
status := test.GetStatus(s.sendChan, s.recvChan)
expectStatus := map[string]string{
"agent": "Idle",
"qan": "Ready",
"mm": "",
}
if same, diff := test.IsDeeply(status, expectStatus); !same {
t.Error(diff)
}
// Finally, since we're using mock objects, let's double check the
// execution trace, i.e. what calls the agent made based on all
// the previous ^.
got := test.WaitTrace(s.traceChan)
expect := []string{
`Start qan`,
`Status qan`,
`Status mm`,
}
t.Check(got, DeepEquals, expect)
/**
* Stop the service.
*/
serviceCmd = &proto.ServiceData{
Name: "qan",
}
serviceData, _ = json.Marshal(serviceCmd)
cmd = &proto.Cmd{
Ts: time.Now(),
User: "******",
Service: "agent",
Cmd: "StopService",
Data: serviceData,
}
// Let fake qan service stop immediately.
s.readyChan <- true
s.sendChan <- cmd
gotReplies = test.WaitReply(s.recvChan)
if len(gotReplies) != 1 {
t.Fatal("Got Reply to Cmd:StopService")
}
reply = &proto.Reply{}
_ = json.Unmarshal(gotReplies[0].Data, reply)
if reply.Error != "" {
t.Error("No Reply.Error to Cmd:StopService; got ", reply.Error)
}
status = test.GetStatus(s.sendChan, s.recvChan)
t.Check(status["agent"], Equals, "Idle")
t.Check(status["qan"], Equals, "Stopped")
t.Check(status["mm"], Equals, "")
}
