open-consul/internal/storage/inmem/snapshot_test.go
2023-04-04 17:30:06 +01:00

97 lines
2.3 KiB
Go

package inmem_test
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/internal/storage"
"github.com/hashicorp/consul/internal/storage/inmem"
"github.com/hashicorp/consul/proto-public/pbresource"
"github.com/hashicorp/consul/proto/private/prototest"
)
func TestSnapshotRestore(t *testing.T) {
oldStore, err := inmem.NewStore()
require.NoError(t, err)
a := &pbresource.Resource{
Id: &pbresource.ID{
Type: &pbresource.Type{
Group: "mesh",
GroupVersion: "v1",
Kind: "service",
},
Tenancy: &pbresource.Tenancy{
Partition: "default",
PeerName: "local",
Namespace: "default",
},
Name: "billing",
Uid: "a",
},
Version: "1",
}
require.NoError(t, oldStore.WriteCAS(a, ""))
newStore, err := inmem.NewStore()
require.NoError(t, err)
// Write something to the new store to make sure it gets blown away.
b := &pbresource.Resource{
Id: &pbresource.ID{
Type: &pbresource.Type{
Group: "mesh",
GroupVersion: "v1",
Kind: "service",
},
Tenancy: &pbresource.Tenancy{
Partition: "default",
PeerName: "local",
Namespace: "default",
},
Name: "api",
Uid: "a",
},
Version: "1",
}
require.NoError(t, newStore.WriteCAS(b, ""))
snap, err := oldStore.Snapshot()
require.NoError(t, err)
// Start a watch on the new store to make sure it gets closed.
watch, err := newStore.WatchList(storage.UnversionedTypeFrom(b.Id.Type), b.Id.Tenancy, "")
require.NoError(t, err)
ctx, cancel := context.WithCancel(context.Background())
t.Cleanup(cancel)
// Expect the initial state on the watch.
_, err = watch.Next(ctx)
require.NoError(t, err)
restore, err := newStore.Restore()
require.NoError(t, err)
defer restore.Abort()
for r := snap.Next(); r != nil; r = snap.Next() {
restore.Apply(r)
}
restore.Commit()
// Check that resource we wrote to oldStore has been restored to newStore.
rsp, err := newStore.Read(a.Id)
require.NoError(t, err)
prototest.AssertDeepEqual(t, a, rsp)
// Check that resource written to newStore was removed by snapshot restore.
_, err = newStore.Read(b.Id)
require.ErrorIs(t, err, storage.ErrNotFound)
// Check the watch has been closed.
_, err = watch.Next(ctx)
require.ErrorIs(t, err, storage.ErrWatchClosed)
}