fakeCake.RemoveStub = func(id layercake.ID) error {
delete(child2parent, id)
return nil
}
})
Describe("Remove", func() {
Context("when the layer has no parents", func() {
BeforeEach(func() {
fakeCake.GetReturns(&image.Image{}, nil)
})
It("removes the layer", func() {
Expect(gc.Remove(layercake.ContainerID("child"))).To(Succeed())
Expect(fakeCake.RemoveCallCount()).To(Equal(1))
Expect(fakeCake.RemoveArgsForCall(0)).To(Equal(layercake.ContainerID("child")))
})
Context("when the layer is retained", func() {
BeforeEach(func() {
fakeRetainer.IsHeldReturns(true)
})
It("should not remove the layer", func() {
Expect(gc.Remove(layercake.ContainerID("child"))).To(Succeed())
Expect(fakeCake.RemoveCallCount()).To(Equal(0))
})
})
})
