90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
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package snapshot
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import (
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"context"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"github.com/docker/containerd"
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"github.com/docker/containerd/testutil"
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"github.com/stretchr/testify/assert"
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)
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// Create a New Layer on top of base layer with Prepare, Stat on new layer, should return Active layer.
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func checkSnapshotterStatActive(t *testing.T, snapshotter Snapshotter, work string) {
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ctx := context.TODO()
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preparing := filepath.Join(work, "preparing")
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if err := os.MkdirAll(preparing, 0777); err != nil {
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t.Fatal(err)
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}
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mounts, err := snapshotter.Prepare(ctx, preparing, "")
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if err != nil {
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t.Fatal(err)
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}
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if len(mounts) < 1 {
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t.Fatal("expected mounts to have entries")
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}
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if err = containerd.MountAll(mounts, preparing); err != nil {
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t.Fatal(err)
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}
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defer testutil.Unmount(t, preparing)
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if err = ioutil.WriteFile(filepath.Join(preparing, "foo"), []byte("foo\n"), 0777); err != nil {
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t.Fatal(err)
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}
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si, err := snapshotter.Stat(ctx, preparing)
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if err != nil {
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t.Fatal(err)
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}
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assert.Equal(t, si.Name, preparing)
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assert.Equal(t, KindActive, si.Kind)
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assert.Equal(t, "", si.Parent)
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}
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// Commit a New Layer on top of base layer with Prepare & Commit , Stat on new layer, should return Committed layer.
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func checkSnapshotterStatCommitted(t *testing.T, snapshotter Snapshotter, work string) {
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ctx := context.TODO()
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preparing := filepath.Join(work, "preparing")
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if err := os.MkdirAll(preparing, 0777); err != nil {
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t.Fatal(err)
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}
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mounts, err := snapshotter.Prepare(ctx, preparing, "")
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if err != nil {
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t.Fatal(err)
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}
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if len(mounts) < 1 {
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t.Fatal("expected mounts to have entries")
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}
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if err = containerd.MountAll(mounts, preparing); err != nil {
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t.Fatal(err)
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}
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defer testutil.Unmount(t, preparing)
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if err = ioutil.WriteFile(filepath.Join(preparing, "foo"), []byte("foo\n"), 0777); err != nil {
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t.Fatal(err)
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}
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committed := filepath.Join(work, "committed")
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if err = snapshotter.Commit(ctx, committed, preparing); err != nil {
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t.Fatal(err)
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}
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si, err := snapshotter.Stat(ctx, committed)
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if err != nil {
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t.Fatal(err)
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}
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assert.Equal(t, si.Name, committed)
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assert.Equal(t, KindCommitted, si.Kind)
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assert.Equal(t, "", si.Parent)
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}
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