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Golang util.NewTimeSeededRand函數代碼示例

本文整理匯總了Golang中github.com/ipfs/go-ipfs/util.NewTimeSeededRand函數的典型用法代碼示例。如果您正苦於以下問題：Golang NewTimeSeededRand函數的具體用法？Golang NewTimeSeededRand怎麽用？Golang NewTimeSeededRand使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。


在下文中一共展示了NewTimeSeededRand函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: TestCallbacksWork

func TestCallbacksWork(t *testing.T) {
	fake := new(FakeStream)

	var sent int64
	var recv int64

	sentCB := func(n int64, proto protocol.ID, p peer.ID) {
		sent += n
	}

	recvCB := func(n int64, proto protocol.ID, p peer.ID) {
		recv += n
	}

	ms := newMeteredStream(fake, protocol.ID("TEST"), peer.ID("PEER"), recvCB, sentCB)

	toWrite := int64(100000)
	toRead := int64(100000)

	fake.ReadBuf = io.LimitReader(u.NewTimeSeededRand(), toRead)
	writeData := io.LimitReader(u.NewTimeSeededRand(), toWrite)

	n, err := io.Copy(ms, writeData)
	if err != nil {
		t.Fatal(err)
	}

	if n != toWrite {
		t.Fatal("incorrect write amount")
	}

	if toWrite != sent {
		t.Fatal("incorrectly reported writes", toWrite, sent)
	}

	n, err = io.Copy(ioutil.Discard, ms)
	if err != nil {
		t.Fatal(err)
	}

	if n != toRead {
		t.Fatal("incorrect read amount")
	}

	if toRead != recv {
		t.Fatal("incorrectly reported reads")
	}
}
開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:48，代碼來源:metered_test.go

示例2: TestBalancedDag

func TestBalancedDag(t *testing.T) {
	ds := mdtest.Mock()
	buf := make([]byte, 10000)
	u.NewTimeSeededRand().Read(buf)
	r := bytes.NewReader(buf)

	nd, err := BuildDagFromReader(ds, chunk.DefaultSplitter(r), nil)
	if err != nil {
		t.Fatal(err)
	}

	dr, err := uio.NewDagReader(context.TODO(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	out, err := ioutil.ReadAll(dr)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(out, buf) {
		t.Fatal("bad read")
	}
}
開發者ID:bussiere，項目名稱:go-ipfs，代碼行數:25，代碼來源:importer_test.go

示例3: randNode

func randNode() (*mdag.Node, key.Key) {
	nd := new(mdag.Node)
	nd.Data = make([]byte, 32)
	util.NewTimeSeededRand().Read(nd.Data)
	k, _ := nd.Key()
	return nd, k
}
開發者ID:avbalu，項目名稱:go-ipfs，代碼行數:7，代碼來源:pin_test.go

示例4: randBuf

func randBuf(t *testing.T, size int) []byte {
	buf := make([]byte, size)
	if _, err := u.NewTimeSeededRand().Read(buf); err != nil {
		t.Fatal("failed to read enough randomness")
	}
	return buf
}
開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:7，代碼來源:splitting_test.go

示例5: TestSeekEndSingleBlockFile

func TestSeekEndSingleBlockFile(t *testing.T) {
	nbytes := int64(100)
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	read := bytes.NewReader(should)
	ds := mdtest.Mock(t)
	nd, err := buildTestDag(read, ds, &chunk.SizeSplitter{5000})
	if err != nil {
		t.Fatal(err)
	}

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	seeked, err := rs.Seek(0, os.SEEK_END)
	if err != nil {
		t.Fatal(err)
	}
	if seeked != nbytes {
		t.Fatal("Failed to seek to end")
	}
}
開發者ID:avbalu，項目名稱:go-ipfs，代碼行數:25，代碼來源:trickle_test.go

示例6: TestRabinChunking

func TestRabinChunking(t *testing.T) {
	data := make([]byte, 1024*1024*16)
	util.NewTimeSeededRand().Read(data)

	r := NewRabin(bytes.NewReader(data), 1024*256)

	var chunks [][]byte

	for {
		chunk, err := r.NextBytes()
		if err != nil {
			if err == io.EOF {
				break
			}
			t.Fatal(err)
		}

		chunks = append(chunks, chunk)
	}

	fmt.Printf("average block size: %d\n", len(data)/len(chunks))

	unchunked := bytes.Join(chunks, nil)
	if !bytes.Equal(unchunked, data) {
		fmt.Printf("%d %d\n", len(unchunked), len(data))
		t.Fatal("data was chunked incorrectly")
	}
}
開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:28，代碼來源:rabin_test.go

示例7: TestBuilderConsistency

func TestBuilderConsistency(t *testing.T) {
	nbytes := 100000
	buf := new(bytes.Buffer)
	io.CopyN(buf, u.NewTimeSeededRand(), int64(nbytes))
	should := dup(buf.Bytes())
	dagserv := mdtest.Mock(t)
	nd, err := buildTestDag(buf, dagserv, chunk.DefaultSplitter)
	if err != nil {
		t.Fatal(err)
	}
	r, err := uio.NewDagReader(context.Background(), nd, dagserv)
	if err != nil {
		t.Fatal(err)
	}

	out, err := ioutil.ReadAll(r)
	if err != nil {
		t.Fatal(err)
	}

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
開發者ID:avbalu，項目名稱:go-ipfs，代碼行數:25，代碼來源:trickle_test.go

示例8: testFileConsistency

func testFileConsistency(t *testing.T, bs chunk.BlockSplitter, nbytes int) {
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	read := bytes.NewReader(should)
	ds := mdtest.Mock(t)
	nd, err := buildTestDag(read, ds, bs)
	if err != nil {
		t.Fatal(err)
	}

	r, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	out, err := ioutil.ReadAll(r)
	if err != nil {
		t.Fatal(err)
	}

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
開發者ID:avbalu，項目名稱:go-ipfs，代碼行數:26，代碼來源:trickle_test.go

示例9: BenchmarkDagmodWrite

func BenchmarkDagmodWrite(b *testing.B) {
	b.StopTimer()
	dserv, pins := getMockDagServ(b)
	_, n := getNode(b, dserv, 0, pins)
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	wrsize := 4096

	dagmod, err := NewDagModifier(ctx, n, dserv, pins, sizeSplitterGen(512))
	if err != nil {
		b.Fatal(err)
	}

	buf := make([]byte, b.N*wrsize)
	u.NewTimeSeededRand().Read(buf)
	b.StartTimer()
	b.SetBytes(int64(wrsize))
	for i := 0; i < b.N; i++ {
		n, err := dagmod.Write(buf[i*wrsize : (i+1)*wrsize])
		if err != nil {
			b.Fatal(err)
		}
		if n != wrsize {
			b.Fatal("Wrote bad size")
		}
	}
}
開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:28，代碼來源:dagmodifier_test.go

示例10: randNode

func randNode() (*merkledag.Node, key.Key) {
	node := new(merkledag.Node)
	node.Data = make([]byte, 32)
	util.NewTimeSeededRand().Read(node.Data)
	k, _ := node.Key()
	return node, k
}
開發者ID:musha68k，項目名稱:go-ipfs，代碼行數:7，代碼來源:resolver_test.go

示例11: TestIndirectBlocks

func TestIndirectBlocks(t *testing.T) {
	splitter := &chunk.SizeSplitter{512}
	nbytes := 1024 * 1024
	buf := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(buf)

	read := bytes.NewReader(buf)

	ds := mdtest.Mock(t)
	dag, err := buildTestDag(read, ds, splitter)
	if err != nil {
		t.Fatal(err)
	}

	reader, err := uio.NewDagReader(context.Background(), dag, ds)
	if err != nil {
		t.Fatal(err)
	}

	out, err := ioutil.ReadAll(reader)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(out, buf) {
		t.Fatal("Not equal!")
	}
}
開發者ID:avbalu，項目名稱:go-ipfs，代碼行數:28，代碼來源:trickle_test.go

示例12: TestEnumerateChildren

func TestEnumerateChildren(t *testing.T) {
	bsi := bstest.Mocks(1)
	ds := NewDAGService(bsi[0])

	read := io.LimitReader(u.NewTimeSeededRand(), 1024*1024)
	root, err := imp.BuildDagFromReader(ds, chunk.NewSizeSplitter(read, 512))
	if err != nil {
		t.Fatal(err)
	}

	ks := key.NewKeySet()
	err = EnumerateChildren(context.Background(), ds, root, ks)
	if err != nil {
		t.Fatal(err)
	}

	var traverse func(n *Node)
	traverse = func(n *Node) {
		// traverse dag and check
		for _, lnk := range n.Links {
			k := key.Key(lnk.Hash)
			if !ks.Has(k) {
				t.Fatal("missing key in set!")
			}
			child, err := ds.Get(context.Background(), k)
			if err != nil {
				t.Fatal(err)
			}
			traverse(child)
		}
	}

	traverse(root)
}
開發者ID:noffle，項目名稱:go-ipfs，代碼行數:34，代碼來源:merkledag_test.go

示例13: TestFetchGraph

func TestFetchGraph(t *testing.T) {
	var dservs []DAGService
	bsis := bstest.Mocks(2)
	for _, bsi := range bsis {
		dservs = append(dservs, NewDAGService(bsi))
	}

	read := io.LimitReader(u.NewTimeSeededRand(), 1024*32)
	root, err := imp.BuildDagFromReader(dservs[0], chunk.NewSizeSplitter(read, 512))
	if err != nil {
		t.Fatal(err)
	}

	err = FetchGraph(context.TODO(), root, dservs[1])
	if err != nil {
		t.Fatal(err)
	}

	// create an offline dagstore and ensure all blocks were fetched
	bs := bserv.New(bsis[1].Blockstore, offline.Exchange(bsis[1].Blockstore))

	offline_ds := NewDAGService(bs)
	ks := key.NewKeySet()

	err = EnumerateChildren(context.Background(), offline_ds, root, ks)
	if err != nil {
		t.Fatal(err)
	}
}
開發者ID:noffle，項目名稱:go-ipfs，代碼行數:29，代碼來源:merkledag_test.go

示例14: RandTestBogusPrivateKey

func RandTestBogusPrivateKey() (TestBogusPrivateKey, error) {
	r := u.NewTimeSeededRand()
	k := make([]byte, 5)
	if _, err := io.ReadFull(r, k); err != nil {
		return nil, err
	}
	return TestBogusPrivateKey(k), nil
}
開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:8，代碼來源:key.go

示例15: getRandFile

func getRandFile(t *testing.T, ds dag.DAGService, size int64) *dag.Node {
	r := io.LimitReader(u.NewTimeSeededRand(), size)
	nd, err := importer.BuildDagFromReader(ds, chunk.DefaultSplitter(r))
	if err != nil {
		t.Fatal(err)
	}
	return nd
}
開發者ID:noffle，項目名稱:go-ipfs，代碼行數:8，代碼來源:mfs_test.go


注：本文中的github.com/ipfs/go-ipfs/util.NewTimeSeededRand函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。