restic/cache_test.go

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package restic_test
import (
"encoding/json"
"testing"
"github.com/restic/restic"
"github.com/restic/restic/backend"
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. "github.com/restic/restic/test"
)
func TestCache(t *testing.T) {
server := setupBackend(t)
defer teardownBackend(t, server)
key := setupKey(t, server, "geheim")
server.SetKey(key)
cache, err := restic.NewCache(server)
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OK(t, err)
arch, err := restic.NewArchiver(server)
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OK(t, err)
// archive some files, this should automatically cache all blobs from the snapshot
_, id, err := arch.Snapshot(nil, []string{*benchArchiveDirectory}, nil)
// try to load map from cache
rd, err := cache.Load(backend.Snapshot, "blobs", id)
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OK(t, err)
dec := json.NewDecoder(rd)
m := &restic.Map{}
err = dec.Decode(m)
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OK(t, err)
// remove cached blob list
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OK(t, cache.Purge(backend.Snapshot, "blobs", id))
// load map from cache again, this should fail
rd, err = cache.Load(backend.Snapshot, "blobs", id)
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Assert(t, err != nil, "Expected failure did not occur")
// recreate cached blob list
err = cache.RefreshSnapshots(server, nil)
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OK(t, err)
// load map from cache again
rd, err = cache.Load(backend.Snapshot, "blobs", id)
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OK(t, err)
dec = json.NewDecoder(rd)
m2 := &restic.Map{}
err = dec.Decode(m2)
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OK(t, err)
// compare maps
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Assert(t, m.Equals(m2), "Maps are not equal")
}