Size: size[id], }, nil } fakeCake.IsLeafStub = func(id layercake.ID) (bool, error) { for _, p := range child2parent { if p == id { return false, nil } } return true, nil } fakeCake.RemoveStub = func(id layercake.ID) error { delete(child2parent, id) return nil } child2parent = make(map[layercake.ID]layercake.ID) size = make(map[layercake.ID]int64) }) JustBeforeEach(func() { gc = cleaner.NewOvenCleaner( retainer, fakeThreshold, ) }) Context("when the threshold is exceeded", func() { BeforeEach(func() {