mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
c9e52bd0da
Signed-off-by: Daniel Nephin <dnephin@docker.com>
197 lines
5.5 KiB
Go
197 lines
5.5 KiB
Go
package image // import "github.com/docker/docker/image"
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import (
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"fmt"
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"runtime"
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"testing"
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"github.com/docker/docker/layer"
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"github.com/gotestyourself/gotestyourself/assert"
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"github.com/gotestyourself/gotestyourself/assert/cmp"
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"github.com/opencontainers/go-digest"
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)
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func TestRestore(t *testing.T) {
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fs, cleanup := defaultFSStoreBackend(t)
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defer cleanup()
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id1, err := fs.Set([]byte(`{"comment": "abc", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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_, err = fs.Set([]byte(`invalid`))
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assert.NilError(t, err)
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id2, err := fs.Set([]byte(`{"comment": "def", "rootfs": {"type": "layers", "diff_ids": ["2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"]}}`))
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assert.NilError(t, err)
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err = fs.SetMetadata(id2, "parent", []byte(id1))
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assert.NilError(t, err)
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mlgrMap := make(map[string]LayerGetReleaser)
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mlgrMap[runtime.GOOS] = &mockLayerGetReleaser{}
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is, err := NewImageStore(fs, mlgrMap)
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assert.NilError(t, err)
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assert.Check(t, cmp.Len(is.Map(), 2))
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img1, err := is.Get(ID(id1))
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(ID(id1), img1.computedID))
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assert.Check(t, cmp.Equal(string(id1), img1.computedID.String()))
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img2, err := is.Get(ID(id2))
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal("abc", img1.Comment))
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assert.Check(t, cmp.Equal("def", img2.Comment))
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_, err = is.GetParent(ID(id1))
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assert.ErrorContains(t, err, "failed to read metadata")
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p, err := is.GetParent(ID(id2))
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(ID(id1), p))
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children := is.Children(ID(id1))
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assert.Check(t, cmp.Len(children, 1))
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assert.Check(t, cmp.Equal(ID(id2), children[0]))
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assert.Check(t, cmp.Len(is.Heads(), 1))
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sid1, err := is.Search(string(id1)[:10])
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(ID(id1), sid1))
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sid1, err = is.Search(digest.Digest(id1).Hex()[:6])
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(ID(id1), sid1))
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invalidPattern := digest.Digest(id1).Hex()[1:6]
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_, err = is.Search(invalidPattern)
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assert.ErrorContains(t, err, "No such image")
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}
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func TestAddDelete(t *testing.T) {
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is, cleanup := defaultImageStore(t)
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defer cleanup()
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id1, err := is.Create([]byte(`{"comment": "abc", "rootfs": {"type": "layers", "diff_ids": ["2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"]}}`))
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(ID("sha256:8d25a9c45df515f9d0fe8e4a6b1c64dd3b965a84790ddbcc7954bb9bc89eb993"), id1))
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img, err := is.Get(id1)
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal("abc", img.Comment))
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id2, err := is.Create([]byte(`{"comment": "def", "rootfs": {"type": "layers", "diff_ids": ["2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"]}}`))
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assert.NilError(t, err)
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err = is.SetParent(id2, id1)
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assert.NilError(t, err)
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pid1, err := is.GetParent(id2)
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(pid1, id1))
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_, err = is.Delete(id1)
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assert.NilError(t, err)
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_, err = is.Get(id1)
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assert.ErrorContains(t, err, "failed to get digest")
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_, err = is.Get(id2)
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assert.NilError(t, err)
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_, err = is.GetParent(id2)
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assert.ErrorContains(t, err, "failed to read metadata")
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}
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func TestSearchAfterDelete(t *testing.T) {
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is, cleanup := defaultImageStore(t)
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defer cleanup()
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id, err := is.Create([]byte(`{"comment": "abc", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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id1, err := is.Search(string(id)[:15])
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(id1, id))
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_, err = is.Delete(id)
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assert.NilError(t, err)
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_, err = is.Search(string(id)[:15])
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assert.ErrorContains(t, err, "No such image")
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}
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func TestParentReset(t *testing.T) {
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is, cleanup := defaultImageStore(t)
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defer cleanup()
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id, err := is.Create([]byte(`{"comment": "abc1", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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id2, err := is.Create([]byte(`{"comment": "abc2", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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id3, err := is.Create([]byte(`{"comment": "abc3", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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assert.Check(t, is.SetParent(id, id2))
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assert.Check(t, cmp.Len(is.Children(id2), 1))
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assert.Check(t, is.SetParent(id, id3))
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assert.Check(t, cmp.Len(is.Children(id2), 0))
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assert.Check(t, cmp.Len(is.Children(id3), 1))
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}
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func defaultImageStore(t *testing.T) (Store, func()) {
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fsBackend, cleanup := defaultFSStoreBackend(t)
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mlgrMap := make(map[string]LayerGetReleaser)
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mlgrMap[runtime.GOOS] = &mockLayerGetReleaser{}
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store, err := NewImageStore(fsBackend, mlgrMap)
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assert.NilError(t, err)
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return store, cleanup
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}
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func TestGetAndSetLastUpdated(t *testing.T) {
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store, cleanup := defaultImageStore(t)
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defer cleanup()
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id, err := store.Create([]byte(`{"comment": "abc1", "rootfs": {"type": "layers"}}`))
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assert.NilError(t, err)
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updated, err := store.GetLastUpdated(id)
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(updated.IsZero(), true))
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assert.Check(t, store.SetLastUpdated(id))
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updated, err = store.GetLastUpdated(id)
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assert.NilError(t, err)
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assert.Check(t, cmp.Equal(updated.IsZero(), false))
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}
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func TestStoreLen(t *testing.T) {
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store, cleanup := defaultImageStore(t)
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defer cleanup()
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expected := 10
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for i := 0; i < expected; i++ {
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_, err := store.Create([]byte(fmt.Sprintf(`{"comment": "abc%d", "rootfs": {"type": "layers"}}`, i)))
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assert.NilError(t, err)
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}
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numImages := store.Len()
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assert.Equal(t, expected, numImages)
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assert.Equal(t, len(store.Map()), numImages)
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}
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type mockLayerGetReleaser struct{}
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func (ls *mockLayerGetReleaser) Get(layer.ChainID) (layer.Layer, error) {
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return nil, nil
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}
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func (ls *mockLayerGetReleaser) Release(layer.Layer) ([]layer.Metadata, error) {
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return nil, nil
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}
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