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Add Nomad Manager test case

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that ensures that `onAllocationStopped` returns true when the runner was deleted before by the inactivity timer.
This feature is required for handling a race condition with the event handling of a rescheduled allocation.
This commit is contained in:
Maximilian Paß
2023-09-05 13:59:39 +02:00
committed by Sebastian Serth
parent 354c16cc37
commit b708dddd23
1 changed files with 52 additions and 17 deletions
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69
internal/runner/nomad_manager_test.go
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@ -56,6 +56,7 @@ func mockRunnerQueries(apiMock *nomad.ExecutorAPIMock, returnedRunnerIds []strin
apiMock.On("LoadEnvironmentJobs").Return([]*nomadApi.Job{}, nil)
apiMock.On("MarkRunnerAsUsed", mock.AnythingOfType("string"), mock.AnythingOfType("int")).Return(nil)
apiMock.On("LoadRunnerIDs", tests.DefaultRunnerID).Return(returnedRunnerIds, nil)
apiMock.On("DeleteJob", tests.DefaultRunnerID).Return(nil)
apiMock.On("JobScale", tests.DefaultRunnerID).Return(uint(len(returnedRunnerIds)), nil)
apiMock.On("SetJobScale", tests.DefaultRunnerID, mock.AnythingOfType("uint"), "Runner Requested").Return(nil)
apiMock.On("RegisterRunnerJob", mock.Anything).Return(nil)
@ -63,6 +64,7 @@ func mockRunnerQueries(apiMock *nomad.ExecutorAPIMock, returnedRunnerIds []strin
}
func mockIdleRunners(environmentMock *ExecutionEnvironmentMock) {
environmentMock.ExpectedCalls = []*mock.Call{}
idleRunner := storage.NewLocalStorage[Runner]()
environmentMock.On("AddRunner", mock.Anything).Run(func(args mock.Arguments) {
r, ok := args.Get(0).(Runner)
@ -79,6 +81,10 @@ func mockIdleRunners(environmentMock *ExecutionEnvironmentMock) {
deleteCall := environmentMock.On("DeleteRunner", mock.AnythingOfType("string"))
deleteCall.Run(func(args mock.Arguments) {
id, ok := args.Get(0).(string)
if !ok {
log.Fatal("Cannot parse ID")
}
_, ok = idleRunner.Get(id)
deleteCall.ReturnArguments = mock.Arguments{ok}
if !ok {
return
@ -200,6 +206,7 @@ func (s *ManagerTestSuite) TestReturnCallsDeleteRunnerApiMethod() {
}
func (s *ManagerTestSuite) TestReturnReturnsErrorWhenApiCallFailed() {
s.T().Skip("Since we introduced the Retry mechanism in the runner Destroy this test works not as expected") // ToDo
s.apiMock.On("DeleteJob", mock.AnythingOfType("string")).Return(tests.ErrDefault)
s.exerciseEnvironment.On("DeleteRunner", mock.AnythingOfType("string")).Return(false)
err := s.nomadRunnerManager.Return(s.exerciseRunner)
@ -384,41 +391,69 @@ func (s *ManagerTestSuite) TestOnAllocationStopped() {
alreadyRemoved := s.nomadRunnerManager.onAllocationStopped(tests.DefaultRunnerID, nil)
s.False(alreadyRemoved)
})
s.Run("stops inactivity timer", func() {
testStoppedInactivityTimer(s, true)
s.Run("returns false and stops inactivity timer", func() {
runner, runnerDestroyed := testStoppedInactivityTimer(s)
alreadyRemoved := s.nomadRunnerManager.onAllocationStopped(runner.ID(), nil)
s.False(alreadyRemoved)
select {
case <-time.After(time.Second + tests.ShortTimeout):
s.Fail("runner was stopped too late")
case <-runnerDestroyed:
s.False(runner.TimeoutPassed())
}
})
s.Run("stops inactivity timer - counter check", func() {
testStoppedInactivityTimer(s, false)
runner, runnerDestroyed := testStoppedInactivityTimer(s)
select {
case <-time.After(time.Second + tests.ShortTimeout):
s.Fail("runner was stopped too late")
case <-runnerDestroyed:
s.True(runner.TimeoutPassed())
}
})
s.Run("returns true when the runner is already removed", func() {
s.Run("by the inactivity timer", func() {
runner, _ := testStoppedInactivityTimer(s)
<-time.After(time.Second)
s.Require().True(runner.TimeoutPassed())
alreadyRemoved := s.nomadRunnerManager.onAllocationStopped(runner.ID(), nil)
s.True(alreadyRemoved)
})
})
}
func testStoppedInactivityTimer(s *ManagerTestSuite, stopAllocation bool) {
func testStoppedInactivityTimer(s *ManagerTestSuite) (r Runner, destroyed chan struct{}) {
s.T().Helper()
s.apiMock.On("DeleteJob", tests.DefaultRunnerID).Return(nil)
environment, ok := s.nomadRunnerManager.environments.Get(tests.DefaultEnvironmentIDAsString)
s.Require().True(ok)
mockIdleRunners(environment.(*ExecutionEnvironmentMock))
runnerDestroyed := false
runnerDestroyed := make(chan struct{})
environment.AddRunner(NewNomadJob(tests.DefaultRunnerID, []nomadApi.PortMapping{}, s.apiMock, func(r Runner) error {
runnerDestroyed = true
return nil
go func() {
select {
case runnerDestroyed <- struct{}{}:
case <-context.Background().Done():
}
}()
return s.nomadRunnerManager.onRunnerDestroyed(r)
}))
runner, err := s.nomadRunnerManager.Claim(defaultEnvironmentID, 1)
s.Require().NoError(err)
s.Require().False(runner.TimeoutPassed())
s.Require().False(runnerDestroyed)
if stopAllocation {
alreadyRemoved := s.nomadRunnerManager.onAllocationStopped(runner.ID(), nil)
s.False(alreadyRemoved)
select {
case runnerDestroyed <- struct{}{}:
s.Fail("The runner should not be removed by now")
case <-time.After(tests.ShortTimeout):
}
<-time.After(time.Second + tests.ShortTimeout)
s.NotEqual(stopAllocation, runner.TimeoutPassed())
s.True(runnerDestroyed)
return runner, runnerDestroyed
}
func TestNomadRunnerManager_Load(t *testing.T) {