Expect(ids).To(ContainElement(layercake.ContainerID("def").GraphID()))
Expect(ids).To(ContainElement(layercake.ContainerID("abc").GraphID()))
Expect(ids).To(ContainElement(layercake.ContainerID("child2").GraphID()))
})
})
Describe("IsLeaf", func() {
BeforeEach(func() {
createContainerLayer(cake, layercake.ContainerID("def"), layercake.DockerImageID(""), "")
createContainerLayer(cake, layercake.ContainerID("abc"), layercake.ContainerID("def"), "")
createContainerLayer(cake, layercake.ContainerID("child2"), layercake.ContainerID("def"), "")
})
Context("when an image has no children", func() {
It("is a leaf", func() {
Expect(cake.IsLeaf(layercake.ContainerID("abc"))).To(Equal(true))
})
})
Context("when an image has children", func() {
It("is not a leaf", func() {
Expect(cake.IsLeaf(layercake.ContainerID("def"))).To(Equal(false))
})
})
Context("when an image's final child is removed", func() {
It("is becomes a leaf", func() {
Expect(cake.IsLeaf(layercake.ContainerID("def"))).To(Equal(false))
Expect(cake.Remove(layercake.ContainerID("abc"))).To(Succeed())
Expect(cake.IsLeaf(layercake.ContainerID("def"))).To(Equal(false))
