2018-08-07 18:01:02 +00:00
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package adder
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import (
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"context"
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"errors"
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"mime/multipart"
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"sync"
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"testing"
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"time"
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"github.com/ipfs/ipfs-cluster/api"
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"github.com/ipfs/ipfs-cluster/test"
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cid "github.com/ipfs/go-cid"
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ipld "github.com/ipfs/go-ipld-format"
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)
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type mockCDagServ struct {
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BaseDAGService
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resultCids map[string]struct{}
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lastCid *cid.Cid
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}
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func (dag *mockCDagServ) Add(ctx context.Context, node ipld.Node) error {
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dag.resultCids[node.Cid().String()] = struct{}{}
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dag.lastCid = node.Cid()
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return nil
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}
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func (dag *mockCDagServ) AddMany(ctx context.Context, nodes []ipld.Node) error {
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for _, node := range nodes {
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err := dag.Add(ctx, node)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (dag *mockCDagServ) Finalize(ctx context.Context) (*cid.Cid, error) {
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if dag.lastCid == nil {
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return nil, errors.New("nothing added")
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}
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return dag.lastCid, nil
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}
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func TestAdder(t *testing.T) {
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sth := test.NewShardingTestHelper()
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defer sth.Clean()
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mr := sth.GetTreeMultiReader(t)
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r := multipart.NewReader(mr, mr.Boundary())
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p := api.DefaultAddParams()
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expectedCids := test.ShardingDirCids[:]
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dags := &mockCDagServ{
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resultCids: make(map[string]struct{}),
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}
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2018-08-08 19:10:42 +00:00
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adder := New(dags, p, nil)
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2018-08-07 18:01:02 +00:00
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2018-08-08 19:10:42 +00:00
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root, err := adder.FromMultipart(context.Background(), r)
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2018-08-07 18:01:02 +00:00
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if err != nil {
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t.Fatal(err)
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}
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if root.String() != test.ShardingDirBalancedRootCID {
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t.Error("expected the right content root")
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}
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if len(expectedCids) != len(dags.resultCids) {
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t.Fatal("unexpected number of blocks imported")
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}
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for _, c := range expectedCids {
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_, ok := dags.resultCids[c]
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if !ok {
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t.Fatal("unexpected block emitted:", c)
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}
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}
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}
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func TestAdder_DoubleStart(t *testing.T) {
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sth := test.NewShardingTestHelper()
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defer sth.Clean()
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f := sth.GetTreeSerialFile(t)
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p := api.DefaultAddParams()
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dags := &mockCDagServ{
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resultCids: make(map[string]struct{}),
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}
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2018-08-08 19:10:42 +00:00
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adder := New(dags, p, nil)
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_, err := adder.FromFiles(context.Background(), f)
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2018-08-07 18:01:02 +00:00
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if err != nil {
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t.Fatal(err)
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}
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f = sth.GetTreeSerialFile(t)
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2018-08-08 19:10:42 +00:00
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_, err = adder.FromFiles(context.Background(), f)
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2018-08-07 18:01:02 +00:00
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if err == nil {
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t.Fatal("expected an error: cannot run importer twice")
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}
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}
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func TestAdder_ContextCancelled(t *testing.T) {
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sth := test.NewShardingTestHelper()
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defer sth.Clean()
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mr := sth.GetRandFileMultiReader(t, 50000) // 50 MB
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r := multipart.NewReader(mr, mr.Boundary())
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p := api.DefaultAddParams()
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dags := &mockCDagServ{
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resultCids: make(map[string]struct{}),
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}
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ctx, cancel := context.WithCancel(context.Background())
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2018-08-08 19:10:42 +00:00
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adder := New(dags, p, nil)
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2018-08-07 18:01:02 +00:00
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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2018-08-08 19:10:42 +00:00
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_, err := adder.FromMultipart(ctx, r)
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2018-08-07 18:01:02 +00:00
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if err == nil {
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t.Error("expected a context cancelled error")
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}
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t.Log(err)
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}()
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time.Sleep(200 * time.Millisecond)
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cancel()
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wg.Wait()
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}
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