func (s *LxcSuite) TestCreateContainerFailsWithInjectedCreateError(c *gc.C) {
errorChannel := make(chan error, 1)
cleanup := mock.PatchCreateTransientErrorInjectionChannel(errorChannel)
defer cleanup()
errorChannel <- errors.New("lxc-create error")
manager := s.makeManager(c, "test")
_, err := containertesting.CreateContainerTest(c, manager, "1/lxc/0")
c.Assert(err, gc.NotNil)
// this should be a retryable error
isRetryable := instance.IsRetryableCreationError(errors.Cause(err))
c.Assert(isRetryable, jc.IsTrue)
c.Assert(err, gc.ErrorMatches, "lxc container creation failed.*")
}
func (s *LxcSuite) TestCreateContainerFailsWithInjectedStartError(c *gc.C) {
errorChannel := make(chan error, 1)
cleanup := mock.PatchStartTransientErrorInjectionChannel(errorChannel)
defer cleanup()
// One injected error means the container creation will fail
// but the destroy function will clean up the remaining container
// resulting in a RetryableCreationError
errorChannel <- errors.New("start error")
manager := s.makeManager(c, "test")
_, err := containertesting.CreateContainerTest(c, manager, "1/lxc/0")
c.Assert(err, gc.NotNil)
// this should be a retryable error
isRetryable := instance.IsRetryableCreationError(errors.Cause(err))
c.Assert(isRetryable, jc.IsTrue)
}
func (s *LxcSuite) TestCreateContainerWithInjectedErrorDestroyFails(c *gc.C) {
errorChannel := make(chan error, 2)
cleanup := mock.PatchStartTransientErrorInjectionChannel(errorChannel)
defer cleanup()
// Two injected errors mean that the container creation and subsequent
// destroy will fail. This should not result in a RetryableCreationError
// as the container was left in an error state
errorChannel <- errors.New("create error")
errorChannel <- errors.New("destroy error")
manager := s.makeManager(c, "test")
_, err := containertesting.CreateContainerTest(c, manager, "1/lxc/0")
c.Assert(err, gc.NotNil)
// this should not be a retryable error
isRetryable := instance.IsRetryableCreationError(errors.Cause(err))
c.Assert(isRetryable, jc.IsFalse)
}