fakeCake = new(fake_cake.FakeCake)
fakeVolumeCreator = &FakeVolumeCreator{}
fakeNamespacer = &fake_namespacer.FakeNamespacer{}
name = "some-name"
provider = rootfs_provider.NewLayerCreator(
fakeCake,
fakeVolumeCreator,
fakeNamespacer,
)
})
Describe("Create", func() {
Context("when the namespace parameter is false", func() {
It("creates a graph entry with it as the parent", func() {
fakeCake.PathReturns("/some/graph/driver/mount/point", nil)
mountpoint, envvars, err := provider.Create(
lagertest.NewTestLogger("test"),
"some-id",
&repository_fetcher.Image{
ImageID: "some-image-id",
Env: []string{"env1=env1value", "env2=env2value"},
},
rootfs_provider.Spec{
Namespaced: false,
QuotaSize: 0,
},
)
Expect(err).ToNot(HaveOccurred())
Expect(cake.CreateCallCount()).To(Equal(1))
cid, iid, _ := cake.CreateArgsForCall(0)
Expect(cid).To(Equal(namespacedChildID))
Expect(iid.GraphID()).To(BeEmpty())
})
Context("when mounting child fails", func() {
It("should return the error", func() {
cake.GetReturns(nil, testError)
Expect(aufsCake.Create(namespacedChildID, parentID, "")).To(Equal(testError))
})
})
Context("when getting parent's path fails", func() {
BeforeEach(func() {
cake.PathReturns("", testError)
})
It("should return the error", func() {
Expect(aufsCake.Create(namespacedChildID, parentID, "")).To(Equal(testError))
})
It("should not unmount the parent", func() {
Expect(aufsCake.Create(namespacedChildID, parentID, "")).To(Equal(testError))
Expect(cake.UnmountCallCount()).To(Equal(0))
})
})
Context("when getting parent's path succeeds", func() {
var succeedingRunner *fake_command_runner.FakeCommandRunner