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Refactor MemoryLeakTestSuite

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as we identified two issues where the goroutine count from before differs from after the test.

1) It seemed like a Go runtime specific Goroutine appeared in rare cases before the test. To avoid this, we introduced a short timeout before looking up the Goroutines.
Another solution might be to do the lookup twice and check if the count matches.

2) A Goroutine that periodically monitors some storage unexpectedly got closed in rare cases. As we could not identify the cause for this, we removed the leaking Goroutines by properly cleaning up.
This commit is contained in:
Maximilian Paß
2024-02-27 21:42:18 +01:00
parent 80b8c27924
commit ab938bfc22
6 changed files with 56 additions and 33 deletions
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25
internal/api/environments_test.go
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@ -90,14 +90,16 @@ func (s *EnvironmentControllerTestSuite) TestList() {
})
s.Run("returns multiple environments", func() {
s.ExpectedGoroutingIncrease++ // We dont care to delete the created environment.
s.ExpectedGoroutingIncrease++ // Also not about the second.
apiMock := &nomad.ExecutorAPIMock{}
apiMock.On("LoadRunnerIDs", mock.AnythingOfType("string")).Return([]string{}, nil)
apiMock.On("DeleteJob", mock.AnythingOfType("string")).Return(nil)
var firstEnvironment, secondEnvironment *environment.NomadEnvironment
call.Run(func(args mock.Arguments) {
firstEnvironment, err := environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, nil,
firstEnvironment, err = environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, apiMock,
fmt.Sprintf(jobHCLBasicFormat, nomad.TemplateJobID(tests.DefaultEnvironmentIDAsInteger)))
s.Require().NoError(err)
secondEnvironment, err := environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, nil,
secondEnvironment, err = environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, apiMock,
fmt.Sprintf(jobHCLBasicFormat, nomad.TemplateJobID(tests.DefaultEnvironmentIDAsInteger)))
s.Require().NoError(err)
call.ReturnArguments = mock.Arguments{[]runner.ExecutionEnvironment{firstEnvironment, secondEnvironment}, nil}
@ -114,6 +116,11 @@ func (s *EnvironmentControllerTestSuite) TestList() {
environments, ok := environmentsInterface.([]interface{})
s.Require().True(ok)
s.Equal(2, len(environments))
err = firstEnvironment.Delete(tests.ErrCleanupDestroyReason)
s.NoError(err)
err = secondEnvironment.Delete(tests.ErrCleanupDestroyReason)
s.NoError(err)
})
}
@ -155,10 +162,13 @@ func (s *EnvironmentControllerTestSuite) TestGet() {
s.manager.Calls = []mock.Call{}
s.Run("returns environment", func() {
s.ExpectedGoroutingIncrease++ // We dont care to delete the created environment.
apiMock := &nomad.ExecutorAPIMock{}
apiMock.On("LoadRunnerIDs", mock.AnythingOfType("string")).Return([]string{}, nil)
apiMock.On("DeleteJob", mock.AnythingOfType("string")).Return(nil)
var testEnvironment *environment.NomadEnvironment
call.Run(func(args mock.Arguments) {
testEnvironment, err := environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, nil,
testEnvironment, err = environment.NewNomadEnvironment(tests.DefaultEnvironmentIDAsInteger, apiMock,
fmt.Sprintf(jobHCLBasicFormat, nomad.TemplateJobID(tests.DefaultEnvironmentIDAsInteger)))
s.Require().NoError(err)
call.ReturnArguments = mock.Arguments{testEnvironment, nil}
@ -176,6 +186,9 @@ func (s *EnvironmentControllerTestSuite) TestGet() {
idFloat, ok := idInterface.(float64)
s.Require().True(ok)
s.Equal(tests.DefaultEnvironmentIDAsInteger, int(idFloat))
err = testEnvironment.Delete(tests.ErrCleanupDestroyReason)
s.NoError(err)
})
}