github.com/Heebron/moby@v0.0.0-20221111184709-6eab4f55faf7/daemon/images/store_test.go (about)

     1  package images
     2  
     3  import (
     4  	"context"
     5  	"os"
     6  	"path/filepath"
     7  	"testing"
     8  
     9  	"github.com/containerd/containerd/content"
    10  	"github.com/containerd/containerd/content/local"
    11  	c8derrdefs "github.com/containerd/containerd/errdefs"
    12  	"github.com/containerd/containerd/leases"
    13  	"github.com/containerd/containerd/metadata"
    14  	"github.com/containerd/containerd/namespaces"
    15  	"github.com/docker/docker/image"
    16  	"github.com/opencontainers/go-digest"
    17  	v1 "github.com/opencontainers/image-spec/specs-go/v1"
    18  	"go.etcd.io/bbolt"
    19  	"gotest.tools/v3/assert"
    20  	is "gotest.tools/v3/assert/cmp"
    21  )
    22  
    23  func setupTestStores(t *testing.T) (context.Context, content.Store, *imageStoreWithLease, func(t *testing.T)) {
    24  	dir, err := os.MkdirTemp("", t.Name())
    25  	assert.NilError(t, err)
    26  
    27  	backend, err := image.NewFSStoreBackend(filepath.Join(dir, "images"))
    28  	assert.NilError(t, err)
    29  	is, err := image.NewImageStore(backend, nil)
    30  	assert.NilError(t, err)
    31  
    32  	db, err := bbolt.Open(filepath.Join(dir, "metadata.db"), 0600, nil)
    33  	assert.NilError(t, err)
    34  
    35  	cs, err := local.NewStore(filepath.Join(dir, "content"))
    36  	assert.NilError(t, err)
    37  	mdb := metadata.NewDB(db, cs, nil)
    38  
    39  	cleanup := func(t *testing.T) {
    40  		assert.Check(t, db.Close())
    41  		assert.Check(t, os.RemoveAll(dir))
    42  	}
    43  	ctx := namespaces.WithNamespace(context.Background(), t.Name())
    44  	images := &imageStoreWithLease{Store: is, ns: t.Name(), leases: metadata.NewLeaseManager(mdb)}
    45  
    46  	return ctx, cs, images, cleanup
    47  }
    48  
    49  func TestImageDelete(t *testing.T) {
    50  	ctx, _, images, cleanup := setupTestStores(t)
    51  	defer cleanup(t)
    52  
    53  	t.Run("no lease", func(t *testing.T) {
    54  		id, err := images.Create([]byte(`{"rootFS": {}}`))
    55  		assert.NilError(t, err)
    56  		defer images.Delete(id)
    57  
    58  		ls, err := images.leases.List(ctx)
    59  		assert.NilError(t, err)
    60  		assert.Equal(t, len(ls), 0, ls)
    61  
    62  		_, err = images.Delete(id)
    63  		assert.NilError(t, err, "should not error when there is no lease")
    64  	})
    65  
    66  	t.Run("lease exists", func(t *testing.T) {
    67  		id, err := images.Create([]byte(`{"rootFS": {}}`))
    68  		assert.NilError(t, err)
    69  		defer images.Delete(id)
    70  
    71  		leaseID := imageKey(digest.Digest(id))
    72  		_, err = images.leases.Create(ctx, leases.WithID(leaseID))
    73  		assert.NilError(t, err)
    74  		defer images.leases.Delete(ctx, leases.Lease{ID: leaseID})
    75  
    76  		ls, err := images.leases.List(ctx)
    77  		assert.NilError(t, err)
    78  		assert.Check(t, is.Equal(len(ls), 1), ls)
    79  
    80  		_, err = images.Delete(id)
    81  		assert.NilError(t, err)
    82  
    83  		ls, err = images.leases.List(ctx)
    84  		assert.NilError(t, err)
    85  		assert.Check(t, is.Equal(len(ls), 0), ls)
    86  	})
    87  }
    88  
    89  func TestContentStoreForPull(t *testing.T) {
    90  	ctx, cs, imgStore, cleanup := setupTestStores(t)
    91  	defer cleanup(t)
    92  
    93  	csP := &contentStoreForPull{
    94  		ContentStore: cs,
    95  		leases:       imgStore.leases,
    96  	}
    97  
    98  	data := []byte(`{}`)
    99  	desc := v1.Descriptor{
   100  		Digest: digest.Canonical.FromBytes(data),
   101  		Size:   int64(len(data)),
   102  	}
   103  
   104  	w, err := csP.Writer(ctx, content.WithRef(t.Name()), content.WithDescriptor(desc))
   105  	assert.NilError(t, err)
   106  
   107  	_, err = w.Write(data)
   108  	assert.NilError(t, err)
   109  	defer w.Close()
   110  
   111  	err = w.Commit(ctx, desc.Size, desc.Digest)
   112  	assert.NilError(t, err)
   113  
   114  	assert.Equal(t, len(csP.digested), 1)
   115  	assert.Check(t, is.Equal(csP.digested[0], desc.Digest))
   116  
   117  	// Test already exists
   118  	csP.digested = nil
   119  	_, err = csP.Writer(ctx, content.WithRef(t.Name()), content.WithDescriptor(desc))
   120  	assert.Check(t, c8derrdefs.IsAlreadyExists(err))
   121  	assert.Equal(t, len(csP.digested), 1)
   122  	assert.Check(t, is.Equal(csP.digested[0], desc.Digest))
   123  }