mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
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61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
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package backpressure_tests
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import (
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"context"
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"os"
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"testing"
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"time"
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"github.com/libp2p/go-libp2p/core/network"
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"github.com/libp2p/go-libp2p/core/protocol"
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bhost "github.com/libp2p/go-libp2p/p2p/host/basic"
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swarmt "github.com/libp2p/go-libp2p/p2p/net/swarm/testing"
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logging "github.com/ipfs/go-log/v2"
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"github.com/stretchr/testify/require"
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)
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var log = logging.Logger("backpressure")
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// TestStBackpressureStreamWrite tests whether streams see proper
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// backpressure when writing data over the network streams.
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func TestStBackpressureStreamWrite(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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h1, err := bhost.NewHost(swarmt.GenSwarm(t), nil)
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require.NoError(t, err)
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h1.Start()
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h2, err := bhost.NewHost(swarmt.GenSwarm(t), nil)
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require.NoError(t, err)
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h2.Start()
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// setup sender handler on 2
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h2.SetStreamHandler(protocol.TestingID, func(s network.Stream) {
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defer s.Reset()
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<-ctx.Done()
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})
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h2pi := h2.Peerstore().PeerInfo(h2.ID())
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log.Debugf("dialing %s", h2pi.Addrs)
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if err := h1.Connect(ctx, h2pi); err != nil {
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t.Fatal("Failed to connect:", err)
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}
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// open a stream, from 1->2, this is our reader
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s, err := h1.NewStream(ctx, h2.ID(), protocol.TestingID)
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require.NoError(t, err)
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defer s.Reset()
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// If nobody is reading, we should eventually time out.
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require.NoError(t, s.SetWriteDeadline(time.Now().Add(100*time.Millisecond)))
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data := make([]byte, 16*1024)
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for i := 0; i < 5*1024; i++ { // write at most 100MiB
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if _, err := s.Write(data); err != nil {
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require.True(t, os.IsTimeout(err), err)
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return
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}
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}
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t.Fatal("should have timed out")
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}
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