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Cleanup extra returns in tests

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Signed-off-by: Daniel Nephin <dnephin@gmail.com>
This commit is contained in:
Daniel Nephin 2018-01-23 13:19:20 -05:00
parent cee56a1226
commit 1cd32fa68d
6 changed files with 273 additions and 546 deletions
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3
client_test.go
View File

@ -184,7 +184,6 @@ func TestImagePull(t *testing.T) {
defer cancel()
_, err = client.Pull(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
}

99
container_checkpoint_test.go
View File

@ -27,66 +27,55 @@ func TestCheckpointRestore(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(oci.WithImageConfig(image), oci.WithProcessArgs("sleep", "100")), WithNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
checkpoint, err := task.Checkpoint(ctx, WithExit)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
if _, err := task.Delete(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if task, err = container.NewTask(ctx, empty(), WithTaskCheckpoint(checkpoint)); err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err = task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
}
@ -107,74 +96,61 @@ func TestCheckpointRestoreNewContainer(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(oci.WithImageConfig(image), oci.WithProcessArgs("sleep", "100")), WithNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
checkpoint, err := task.Checkpoint(ctx, WithExit)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
if _, err := task.Delete(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := container.Delete(ctx, WithSnapshotCleanup); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if container, err = client.NewContainer(ctx, id, WithCheckpoint(checkpoint, id)); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if task, err = container.NewTask(ctx, empty(), WithTaskCheckpoint(checkpoint)); err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err = task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
}
@ -200,52 +176,43 @@ func TestCheckpointLeaveRunning(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(oci.WithImageConfig(image), oci.WithProcessArgs("sleep", "100")), WithNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if _, err := task.Checkpoint(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
status, err := task.Status(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if status.Status != Running {
t.Errorf("expected status %q but received %q", Running, status)
return
t.Fatalf("expected status %q but received %q", Running, status)
}
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC

237
container_linux_test.go
View File

@ -43,8 +43,7 @@ func TestTaskUpdate(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
limit := int64(32 * 1024 * 1024)
memory := func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
@ -57,38 +56,32 @@ func TestTaskUpdate(t *testing.T) {
WithNewSpec(oci.WithImageConfig(image), withProcessArgs("sleep", "30"), memory),
WithNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
// check that the task has a limit of 32mb
cgroup, err := cgroups.Load(cgroups.V1, cgroups.PidPath(int(task.Pid())))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
stat, err := cgroup.Stat(cgroups.IgnoreNotExist)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if int64(stat.Memory.Usage.Limit) != limit {
t.Errorf("expected memory limit to be set to %d but received %d", limit, stat.Memory.Usage.Limit)
return
t.Fatalf("expected memory limit to be set to %d but received %d", limit, stat.Memory.Usage.Limit)
}
limit = 64 * 1024 * 1024
if err := task.Update(ctx, WithResources(&specs.LinuxResources{
@ -100,15 +93,13 @@ func TestTaskUpdate(t *testing.T) {
}
// check that the task has a limit of 64mb
if stat, err = cgroup.Stat(cgroups.IgnoreNotExist); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if int64(stat.Memory.Usage.Limit) != limit {
t.Errorf("expected memory limit to be set to %d but received %d", limit, stat.Memory.Usage.Limit)
}
if err := task.Kill(ctx, unix.SIGKILL); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
@ -131,21 +122,18 @@ func TestShimInCgroup(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(oci.WithImageConfig(image), oci.WithProcessArgs("sleep", "30")), WithNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
// create a cgroup for the shim to use
path := "/containerd/shim"
cg, err := cgroups.New(cgroups.V1, cgroups.StaticPath(path), &specs.LinuxResources{})
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer cg.Delete()
@ -156,29 +144,25 @@ func TestShimInCgroup(t *testing.T) {
return nil
})
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
// check to see if the shim is inside the cgroup
processes, err := cg.Processes(cgroups.Devices, false)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if len(processes) == 0 {
t.Errorf("created cgroup should have atleast one process inside: %d", len(processes))
}
if err := task.Kill(ctx, unix.SIGKILL); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
@ -200,33 +184,28 @@ func TestDaemonRestart(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(withImageConfig(image), withProcessArgs("sleep", "30")), withNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
var exitStatus ExitStatus
@ -249,8 +228,7 @@ func TestDaemonRestart(t *testing.T) {
statusC, err = task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
@ -285,14 +263,12 @@ func TestContainerAttach(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(withImageConfig(image), withCat()), withNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
@ -300,8 +276,7 @@ func TestContainerAttach(t *testing.T) {
direct, err := newDirectIO(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer direct.Delete()
var (
@ -316,8 +291,7 @@ func TestContainerAttach(t *testing.T) {
task, err := container.NewTask(ctx, direct.IOCreate)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
@ -327,8 +301,7 @@ func TestContainerAttach(t *testing.T) {
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if _, err := fmt.Fprint(direct.Stdin, expected); err != nil {
@ -337,13 +310,11 @@ func TestContainerAttach(t *testing.T) {
// load the container and re-load the task
if container, err = client.LoadContainer(ctx, id); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if task, err = container.Task(ctx, direct.IOAttach); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if _, err := fmt.Fprint(direct.Stdin, expected); err != nil {
@ -437,13 +408,11 @@ func TestContainerUsername(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
direct, err := newDirectIO(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer direct.Delete()
var (
@ -462,27 +431,23 @@ func TestContainerUsername(t *testing.T) {
WithNewSpec(withImageConfig(image), oci.WithUsername("squid"), oci.WithProcessArgs("id", "-u")),
)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, direct.IOCreate)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
@ -519,14 +484,12 @@ func TestContainerAttachProcess(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(withImageConfig(image), withProcessArgs("sleep", "100")), withNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
@ -535,8 +498,7 @@ func TestContainerAttachProcess(t *testing.T) {
// creating IO early for easy resource cleanup
direct, err := newDirectIO(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer direct.Delete()
var (
@ -551,8 +513,7 @@ func TestContainerAttachProcess(t *testing.T) {
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
@ -562,14 +523,12 @@ func TestContainerAttachProcess(t *testing.T) {
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
spec, err := container.Spec(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
processSpec := spec.Process
@ -577,18 +536,15 @@ func TestContainerAttachProcess(t *testing.T) {
execID := t.Name() + "_exec"
process, err := task.Exec(ctx, execID, processSpec, direct.IOCreate)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
processStatusC, err := process.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := process.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if _, err := fmt.Fprint(direct.Stdin, expected); err != nil {
@ -596,8 +552,7 @@ func TestContainerAttachProcess(t *testing.T) {
}
if process, err = task.LoadProcess(ctx, execID, direct.IOAttach); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if _, err := fmt.Fprint(direct.Stdin, expected); err != nil {
@ -646,13 +601,11 @@ func TestContainerUserID(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
direct, err := newDirectIO(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer direct.Delete()
var (
@ -671,27 +624,23 @@ func TestContainerUserID(t *testing.T) {
WithNewSpec(withImageConfig(image), oci.WithUserID(3), oci.WithProcessArgs("sh", "-c", "echo $(id -u):$(id -g)")),
)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, direct.IOCreate)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
<-statusC
@ -721,8 +670,7 @@ func TestContainerKillAll(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id,
@ -733,28 +681,24 @@ func TestContainerKillAll(t *testing.T) {
),
)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
stdout := bytes.NewBuffer(nil)
task, err := container.NewTask(ctx, cio.NewCreator(withByteBuffers(stdout)))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Kill(ctx, syscall.SIGKILL, WithKillAll); err != nil {
@ -763,8 +707,7 @@ func TestContainerKillAll(t *testing.T) {
<-statusC
if _, err := task.Delete(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
}
@ -848,8 +791,7 @@ func TestDaemonRestartWithRunningShim(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(oci.WithImageConfig(image), oci.WithProcessArgs("sleep", "100")), withNewSnapshot(id, image))
if err != nil {
@ -930,8 +872,7 @@ func TestContainerRuntimeOptions(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(
@ -941,8 +882,7 @@ func TestContainerRuntimeOptions(t *testing.T) {
WithRuntime("io.containerd.runtime.v1.linux", &runctypes.RuncOptions{Runtime: "no-runc"}),
)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
@ -973,8 +913,7 @@ func TestContainerKillInitPidHost(t *testing.T) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id,
@ -985,28 +924,24 @@ func TestContainerKillInitPidHost(t *testing.T) {
),
)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
stdout := bytes.NewBuffer(nil)
task, err := container.NewTask(ctx, cio.NewCreator(withByteBuffers(stdout)))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Start(ctx); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
@ -1069,8 +1004,7 @@ func testUserNamespaces(t *testing.T, readonlyRootFS bool) {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
opts := []NewContainerOpts{WithNewSpec(withImageConfig(image),
@ -1085,8 +1019,7 @@ func testUserNamespaces(t *testing.T, readonlyRootFS bool) {
container, err := client.NewContainer(ctx, id, opts...)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
@ -1098,15 +1031,13 @@ func testUserNamespaces(t *testing.T, readonlyRootFS bool) {
return nil
})
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if pid := task.Pid(); pid <= 0 {
@ -1120,16 +1051,14 @@ func testUserNamespaces(t *testing.T, readonlyRootFS bool) {
status := <-statusC
code, _, err := status.Result()
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if code != 7 {
t.Errorf("expected status 7 from wait but received %d", code)
}
deleteStatus, err := task.Delete(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if ec := deleteStatus.ExitCode(); ec != 7 {
t.Errorf("expected status 7 from delete but received %d", ec)
@ -1155,32 +1084,27 @@ func TestTaskResize(t *testing.T) {
if runtime.GOOS != "windows" {
image, err = client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
}
container, err := client.NewContainer(ctx, id, WithNewSpec(withImageConfig(image), withExitStatus(7)), withNewSnapshot(id, image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx, WithSnapshotCleanup)
task, err := container.NewTask(ctx, empty())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer task.Delete(ctx)
statusC, err := task.Wait(ctx)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := task.Resize(ctx, 32, 32); err != nil {
t.Error(err)
return
t.Fatal(err)
}
task.Kill(ctx, syscall.SIGKILL)
<-statusC
@ -1201,14 +1125,12 @@ func TestContainerImage(t *testing.T) {
image, err := client.GetImage(ctx, testImage)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
container, err := client.NewContainer(ctx, id, WithNewSpec(), WithImage(image))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx)
@ -1236,8 +1158,7 @@ func TestContainerNoImage(t *testing.T) {
container, err := client.NewContainer(ctx, id, WithNewSpec())
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer container.Delete(ctx)

420
container_test.go
View File

File diff suppressed because it is too large Load Diff

3
metadata/gc_test.go
View File

@ -316,8 +316,7 @@ func checkNodesEqual(t *testing.T, n1, n2 []gc.Node) {
sort.Sort(nodeList(n2))
if len(n1) != len(n2) {
t.Errorf("Nodes do not match\n\tExpected:\n\t%v\n\tActual:\n\t%v", n2, n1)
return
t.Fatalf("Nodes do not match\n\tExpected:\n\t%v\n\tActual:\n\t%v", n2, n1)
}
for i := range n1 {

57
snapshots/overlay/overlay_test.go
View File

@ -41,13 +41,11 @@ func TestOverlayMounts(t *testing.T) {
defer os.RemoveAll(root)
o, _, err := newSnapshotter(ctx, root)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
mounts, err := o.Prepare(ctx, "/tmp/test", "")
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if len(mounts) != 1 {
t.Errorf("should only have 1 mount but received %d", len(mounts))
@ -77,23 +75,19 @@ func TestOverlayCommit(t *testing.T) {
defer os.RemoveAll(root)
o, _, err := newSnapshotter(ctx, root)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
key := "/tmp/test"
mounts, err := o.Prepare(ctx, key, "")
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
m := mounts[0]
if err := ioutil.WriteFile(filepath.Join(m.Source, "foo"), []byte("hi"), 0660); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := o.Commit(ctx, "base", key); err != nil {
t.Error(err)
return
t.Fatal(err)
}
}
@ -106,22 +100,18 @@ func TestOverlayOverlayMount(t *testing.T) {
defer os.RemoveAll(root)
o, _, err := newSnapshotter(ctx, root)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
key := "/tmp/test"
if _, err = o.Prepare(ctx, key, ""); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := o.Commit(ctx, "base", key); err != nil {
t.Error(err)
return
t.Fatal(err)
}
var mounts []mount.Mount
if mounts, err = o.Prepare(ctx, "/tmp/layer2", "base"); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if len(mounts) != 1 {
t.Errorf("should only have 1 mount but received %d", len(mounts))
@ -194,46 +184,37 @@ func TestOverlayOverlayRead(t *testing.T) {
defer os.RemoveAll(root)
o, _, err := newSnapshotter(ctx, root)
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
key := "/tmp/test"
mounts, err := o.Prepare(ctx, key, "")
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
m := mounts[0]
if err := ioutil.WriteFile(filepath.Join(m.Source, "foo"), []byte("hi"), 0660); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := o.Commit(ctx, "base", key); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if mounts, err = o.Prepare(ctx, "/tmp/layer2", "base"); err != nil {
t.Error(err)
return
t.Fatal(err)
}
dest := filepath.Join(root, "dest")
if err := os.Mkdir(dest, 0700); err != nil {
t.Error(err)
return
t.Fatal(err)
}
if err := mount.All(mounts, dest); err != nil {
t.Error(err)
return
t.Fatal(err)
}
defer syscall.Unmount(dest, 0)
data, err := ioutil.ReadFile(filepath.Join(dest, "foo"))
if err != nil {
t.Error(err)
return
t.Fatal(err)
}
if e := string(data); e != "hi" {
t.Errorf("expected file contents hi but got %q", e)
return
t.Fatalf("expected file contents hi but got %q", e)
}
}