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client_test.go
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client_test.go
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package quic
import (
"context"
"crypto/tls"
"errors"
"net"
"time"
mocklogging "github.com/quic-go/quic-go/internal/mocks/logging"
"github.com/quic-go/quic-go/internal/protocol"
"github.com/quic-go/quic-go/internal/utils"
"github.com/quic-go/quic-go/logging"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
"go.uber.org/mock/gomock"
)
type nullMultiplexer struct{}
func (n nullMultiplexer) AddConn(indexableConn) {}
func (n nullMultiplexer) RemoveConn(indexableConn) error { return nil }
var _ = Describe("Client", func() {
var (
cl *client
packetConn *MockSendConn
connID protocol.ConnectionID
origMultiplexer multiplexer
tlsConf *tls.Config
tracer *mocklogging.MockConnectionTracer
config *Config
originalClientConnConstructor func(
conn sendConn,
runner connRunner,
destConnID protocol.ConnectionID,
srcConnID protocol.ConnectionID,
connIDGenerator ConnectionIDGenerator,
conf *Config,
tlsConf *tls.Config,
initialPacketNumber protocol.PacketNumber,
enable0RTT bool,
hasNegotiatedVersion bool,
tracer *logging.ConnectionTracer,
tracingID uint64,
logger utils.Logger,
v protocol.VersionNumber,
) quicConn
)
BeforeEach(func() {
tlsConf = &tls.Config{NextProtos: []string{"proto1"}}
connID = protocol.ParseConnectionID([]byte{0, 0, 0, 0, 0, 0, 0x13, 0x37})
originalClientConnConstructor = newClientConnection
var tr *logging.ConnectionTracer
tr, tracer = mocklogging.NewMockConnectionTracer(mockCtrl)
config = &Config{
Tracer: func(ctx context.Context, perspective logging.Perspective, id ConnectionID) *logging.ConnectionTracer {
return tr
},
Versions: []protocol.VersionNumber{protocol.Version1},
}
Eventually(areConnsRunning).Should(BeFalse())
packetConn = NewMockSendConn(mockCtrl)
packetConn.EXPECT().LocalAddr().Return(&net.UDPAddr{}).AnyTimes()
packetConn.EXPECT().RemoteAddr().Return(&net.UDPAddr{}).AnyTimes()
cl = &client{
srcConnID: connID,
destConnID: connID,
version: protocol.Version1,
sendConn: packetConn,
tracer: tr,
logger: utils.DefaultLogger,
}
getMultiplexer() // make the sync.Once execute
// replace the clientMuxer. getMultiplexer will now return the nullMultiplexer
origMultiplexer = connMuxer
connMuxer = &nullMultiplexer{}
})
AfterEach(func() {
connMuxer = origMultiplexer
newClientConnection = originalClientConnConstructor
})
AfterEach(func() {
if s, ok := cl.conn.(*connection); ok {
s.shutdown()
}
Eventually(areConnsRunning).Should(BeFalse())
})
Context("Dialing", func() {
var origGenerateConnectionIDForInitial func() (protocol.ConnectionID, error)
BeforeEach(func() {
origGenerateConnectionIDForInitial = generateConnectionIDForInitial
generateConnectionIDForInitial = func() (protocol.ConnectionID, error) {
return connID, nil
}
})
AfterEach(func() {
generateConnectionIDForInitial = origGenerateConnectionIDForInitial
})
It("returns after the handshake is complete", func() {
manager := NewMockPacketHandlerManager(mockCtrl)
manager.EXPECT().Add(gomock.Any(), gomock.Any())
run := make(chan struct{})
newClientConnection = func(
_ sendConn,
_ connRunner,
_ protocol.ConnectionID,
_ protocol.ConnectionID,
_ ConnectionIDGenerator,
_ *Config,
_ *tls.Config,
_ protocol.PacketNumber,
enable0RTT bool,
_ bool,
_ *logging.ConnectionTracer,
_ uint64,
_ utils.Logger,
_ protocol.VersionNumber,
) quicConn {
Expect(enable0RTT).To(BeFalse())
conn := NewMockQUICConn(mockCtrl)
conn.EXPECT().run().Do(func() { close(run) })
c := make(chan struct{})
close(c)
conn.EXPECT().HandshakeComplete().Return(c)
return conn
}
cl, err := newClient(packetConn, &protocol.DefaultConnectionIDGenerator{}, populateConfig(config), tlsConf, nil, false)
Expect(err).ToNot(HaveOccurred())
cl.packetHandlers = manager
Expect(cl).ToNot(BeNil())
Expect(cl.dial(context.Background())).To(Succeed())
Eventually(run).Should(BeClosed())
})
It("returns early connections", func() {
manager := NewMockPacketHandlerManager(mockCtrl)
manager.EXPECT().Add(gomock.Any(), gomock.Any())
readyChan := make(chan struct{})
done := make(chan struct{})
newClientConnection = func(
_ sendConn,
runner connRunner,
_ protocol.ConnectionID,
_ protocol.ConnectionID,
_ ConnectionIDGenerator,
_ *Config,
_ *tls.Config,
_ protocol.PacketNumber,
enable0RTT bool,
_ bool,
_ *logging.ConnectionTracer,
_ uint64,
_ utils.Logger,
_ protocol.VersionNumber,
) quicConn {
Expect(enable0RTT).To(BeTrue())
conn := NewMockQUICConn(mockCtrl)
conn.EXPECT().run().Do(func() { close(done) })
conn.EXPECT().HandshakeComplete().Return(make(chan struct{}))
conn.EXPECT().earlyConnReady().Return(readyChan)
return conn
}
cl, err := newClient(packetConn, &protocol.DefaultConnectionIDGenerator{}, populateConfig(config), tlsConf, nil, true)
Expect(err).ToNot(HaveOccurred())
cl.packetHandlers = manager
Expect(cl).ToNot(BeNil())
Expect(cl.dial(context.Background())).To(Succeed())
Eventually(done).Should(BeClosed())
})
It("returns an error that occurs while waiting for the handshake to complete", func() {
manager := NewMockPacketHandlerManager(mockCtrl)
manager.EXPECT().Add(gomock.Any(), gomock.Any())
testErr := errors.New("early handshake error")
newClientConnection = func(
_ sendConn,
_ connRunner,
_ protocol.ConnectionID,
_ protocol.ConnectionID,
_ ConnectionIDGenerator,
_ *Config,
_ *tls.Config,
_ protocol.PacketNumber,
_ bool,
_ bool,
_ *logging.ConnectionTracer,
_ uint64,
_ utils.Logger,
_ protocol.VersionNumber,
) quicConn {
conn := NewMockQUICConn(mockCtrl)
conn.EXPECT().run().Return(testErr)
conn.EXPECT().HandshakeComplete().Return(make(chan struct{}))
conn.EXPECT().earlyConnReady().Return(make(chan struct{}))
return conn
}
var closed bool
cl, err := newClient(packetConn, &protocol.DefaultConnectionIDGenerator{}, populateConfig(config), tlsConf, func() { closed = true }, true)
Expect(err).ToNot(HaveOccurred())
cl.packetHandlers = manager
Expect(cl).ToNot(BeNil())
Expect(cl.dial(context.Background())).To(MatchError(testErr))
Expect(closed).To(BeTrue())
})
Context("quic.Config", func() {
It("setups with the right values", func() {
tokenStore := NewLRUTokenStore(10, 4)
config := &Config{
HandshakeIdleTimeout: 1337 * time.Minute,
MaxIdleTimeout: 42 * time.Hour,
MaxIncomingStreams: 1234,
MaxIncomingUniStreams: 4321,
TokenStore: tokenStore,
EnableDatagrams: true,
}
c := populateConfig(config)
Expect(c.HandshakeIdleTimeout).To(Equal(1337 * time.Minute))
Expect(c.MaxIdleTimeout).To(Equal(42 * time.Hour))
Expect(c.MaxIncomingStreams).To(BeEquivalentTo(1234))
Expect(c.MaxIncomingUniStreams).To(BeEquivalentTo(4321))
Expect(c.TokenStore).To(Equal(tokenStore))
Expect(c.EnableDatagrams).To(BeTrue())
})
It("disables bidirectional streams", func() {
config := &Config{
MaxIncomingStreams: -1,
MaxIncomingUniStreams: 4321,
}
c := populateConfig(config)
Expect(c.MaxIncomingStreams).To(BeZero())
Expect(c.MaxIncomingUniStreams).To(BeEquivalentTo(4321))
})
It("disables unidirectional streams", func() {
config := &Config{
MaxIncomingStreams: 1234,
MaxIncomingUniStreams: -1,
}
c := populateConfig(config)
Expect(c.MaxIncomingStreams).To(BeEquivalentTo(1234))
Expect(c.MaxIncomingUniStreams).To(BeZero())
})
It("fills in default values if options are not set in the Config", func() {
c := populateConfig(&Config{})
Expect(c.Versions).To(Equal(protocol.SupportedVersions))
Expect(c.HandshakeIdleTimeout).To(Equal(protocol.DefaultHandshakeIdleTimeout))
Expect(c.MaxIdleTimeout).To(Equal(protocol.DefaultIdleTimeout))
})
})
It("creates new connections with the right parameters", func() {
config := &Config{Versions: []protocol.VersionNumber{protocol.Version1}}
c := make(chan struct{})
var version protocol.VersionNumber
var conf *Config
done := make(chan struct{})
newClientConnection = func(
connP sendConn,
_ connRunner,
_ protocol.ConnectionID,
_ protocol.ConnectionID,
_ ConnectionIDGenerator,
configP *Config,
_ *tls.Config,
_ protocol.PacketNumber,
_ bool,
_ bool,
_ *logging.ConnectionTracer,
_ uint64,
_ utils.Logger,
versionP protocol.VersionNumber,
) quicConn {
version = versionP
conf = configP
close(c)
// TODO: check connection IDs?
conn := NewMockQUICConn(mockCtrl)
conn.EXPECT().run()
conn.EXPECT().HandshakeComplete().Return(make(chan struct{}))
conn.EXPECT().destroy(gomock.Any()).MaxTimes(1)
close(done)
return conn
}
packetConn := NewMockPacketConn(mockCtrl)
packetConn.EXPECT().ReadFrom(gomock.Any()).DoAndReturn(func([]byte) (int, net.Addr, error) {
<-done
return 0, nil, errors.New("closed")
})
packetConn.EXPECT().LocalAddr()
packetConn.EXPECT().SetReadDeadline(gomock.Any()).AnyTimes()
_, err := Dial(context.Background(), packetConn, &net.UDPAddr{}, tlsConf, config)
Expect(err).ToNot(HaveOccurred())
Eventually(c).Should(BeClosed())
Expect(version).To(Equal(config.Versions[0]))
Expect(conf.Versions).To(Equal(config.Versions))
})
It("creates a new connections after version negotiation", func() {
var counter int
newClientConnection = func(
_ sendConn,
runner connRunner,
_ protocol.ConnectionID,
connID protocol.ConnectionID,
_ ConnectionIDGenerator,
configP *Config,
_ *tls.Config,
pn protocol.PacketNumber,
_ bool,
hasNegotiatedVersion bool,
_ *logging.ConnectionTracer,
_ uint64,
_ utils.Logger,
versionP protocol.VersionNumber,
) quicConn {
conn := NewMockQUICConn(mockCtrl)
conn.EXPECT().HandshakeComplete().Return(make(chan struct{}))
if counter == 0 {
Expect(pn).To(BeZero())
Expect(hasNegotiatedVersion).To(BeFalse())
conn.EXPECT().run().DoAndReturn(func() error {
runner.Remove(connID)
return &errCloseForRecreating{
nextPacketNumber: 109,
nextVersion: 789,
}
})
} else {
Expect(pn).To(Equal(protocol.PacketNumber(109)))
Expect(hasNegotiatedVersion).To(BeTrue())
conn.EXPECT().run()
conn.EXPECT().destroy(gomock.Any())
}
counter++
return conn
}
config := &Config{Tracer: config.Tracer, Versions: []protocol.VersionNumber{protocol.Version1}}
tracer.EXPECT().StartedConnection(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any())
_, err := DialAddr(context.Background(), "localhost:7890", tlsConf, config)
Expect(err).ToNot(HaveOccurred())
Expect(counter).To(Equal(2))
})
})
})