},
))
})
Context("unmounting the translation layer", func() {
BeforeEach(func() {
// ensure umount doesnt happen too quickly
fakeNamespacer.NamespaceStub = func(_ lager.Logger, _ string) error {
Expect(fakeCake.UnmountCallCount()).To(Equal(0))
return nil
}
})
It("unmounts the translation layer after performing namespacing", func() {
Expect(fakeCake.UnmountCallCount()).Should(Equal(1))
Expect(fakeCake.UnmountArgsForCall(0)).To(Equal(layercake.NamespacedID(layercake.DockerImageID("some-image-id"), "jam")))
})
})
})
Context("and the image has already been translated", func() {
BeforeEach(func() {
fakeCake.PathStub = func(id layercake.ID) (string, error) {
return "/mount/point/" + id.GraphID(), nil
}
fakeNamespacer.CacheKeyReturns("sandwich")
fakeCake.GetStub = func(id layercake.ID) (*image.Image, error) {
if id == (layercake.NamespacedID(layercake.DockerImageID("some-image-id"), "sandwich")) {
return &image.Image{}, nil
Context("when getting parent's path succeeds", func() {
var succeedingRunner *fake_command_runner.FakeCommandRunner
BeforeEach(func() {
succeedingRunner = fake_command_runner.New()
succeedingRunner.WhenRunning(fake_command_runner.CommandSpec{}, func(cmd *exec.Cmd) error {
return nil
})
})
It("should unmount the parentID", func() {
aufsCake.Runner = succeedingRunner
Expect(aufsCake.Create(namespacedChildID, parentID, "")).To(Succeed())
Expect(cake.UnmountCallCount()).To(Equal(1))
Expect(cake.UnmountArgsForCall(0)).To(Equal(parentID))
})
It("should only unmount the parentID after mounting it", func() {
cake.UnmountStub = func(id layercake.ID) error {
Expect(cake.PathCallCount()).Should(BeNumerically(">", 0))
Expect(cake.PathArgsForCall(0)).To(Equal(parentID))
return nil
}
aufsCake.Runner = succeedingRunner
Expect(aufsCake.Create(namespacedChildID, parentID, "")).To(Succeed())
})
It("should only unmount the parentID after we copy the parent directory", func() {
runCallCount := 0