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crypto_stream_manager_test.go
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crypto_stream_manager_test.go
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package quic
import (
"errors"
"github.com/golang/mock/gomock"
"github.com/boisjacques/qed/internal/protocol"
"github.com/boisjacques/qed/internal/wire"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Crypto Stream Manager", func() {
var (
csm *cryptoStreamManager
cs *MockCryptoDataHandler
initialStream *MockCryptoStream
handshakeStream *MockCryptoStream
)
BeforeEach(func() {
initialStream = NewMockCryptoStream(mockCtrl)
handshakeStream = NewMockCryptoStream(mockCtrl)
cs = NewMockCryptoDataHandler(mockCtrl)
csm = newCryptoStreamManager(cs, initialStream, handshakeStream)
})
It("passes messages to the initial stream", func() {
cf := &wire.CryptoFrame{Data: []byte("foobar")}
initialStream.EXPECT().HandleCryptoFrame(cf)
initialStream.EXPECT().GetCryptoData().Return([]byte("foobar"))
initialStream.EXPECT().GetCryptoData()
cs.EXPECT().HandleMessage([]byte("foobar"), protocol.EncryptionInitial)
encLevelChanged, err := csm.HandleCryptoFrame(cf, protocol.EncryptionInitial)
Expect(err).ToNot(HaveOccurred())
Expect(encLevelChanged).To(BeFalse())
})
It("passes messages to the handshake stream", func() {
cf := &wire.CryptoFrame{Data: []byte("foobar")}
handshakeStream.EXPECT().HandleCryptoFrame(cf)
handshakeStream.EXPECT().GetCryptoData().Return([]byte("foobar"))
handshakeStream.EXPECT().GetCryptoData()
cs.EXPECT().HandleMessage([]byte("foobar"), protocol.EncryptionHandshake)
encLevelChanged, err := csm.HandleCryptoFrame(cf, protocol.EncryptionHandshake)
Expect(err).ToNot(HaveOccurred())
Expect(encLevelChanged).To(BeFalse())
})
It("doesn't call the message handler, if there's no message", func() {
cf := &wire.CryptoFrame{Data: []byte("foobar")}
handshakeStream.EXPECT().HandleCryptoFrame(cf)
handshakeStream.EXPECT().GetCryptoData() // don't return any data to handle
// don't EXPECT any calls to HandleMessage()
encLevelChanged, err := csm.HandleCryptoFrame(cf, protocol.EncryptionHandshake)
Expect(err).ToNot(HaveOccurred())
Expect(encLevelChanged).To(BeFalse())
})
It("processes all messages", func() {
cf := &wire.CryptoFrame{Data: []byte("foobar")}
handshakeStream.EXPECT().HandleCryptoFrame(cf)
handshakeStream.EXPECT().GetCryptoData().Return([]byte("foo"))
handshakeStream.EXPECT().GetCryptoData().Return([]byte("bar"))
handshakeStream.EXPECT().GetCryptoData()
cs.EXPECT().HandleMessage([]byte("foo"), protocol.EncryptionHandshake)
cs.EXPECT().HandleMessage([]byte("bar"), protocol.EncryptionHandshake)
encLevelChanged, err := csm.HandleCryptoFrame(cf, protocol.EncryptionHandshake)
Expect(err).ToNot(HaveOccurred())
Expect(encLevelChanged).To(BeFalse())
})
It("finishes the crypto stream, when the crypto setup is done with this encryption level", func() {
cf := &wire.CryptoFrame{Data: []byte("foobar")}
gomock.InOrder(
handshakeStream.EXPECT().HandleCryptoFrame(cf),
handshakeStream.EXPECT().GetCryptoData().Return([]byte("foobar")),
cs.EXPECT().HandleMessage([]byte("foobar"), protocol.EncryptionHandshake).Return(true),
handshakeStream.EXPECT().Finish(),
)
encLevelChanged, err := csm.HandleCryptoFrame(cf, protocol.EncryptionHandshake)
Expect(err).ToNot(HaveOccurred())
Expect(encLevelChanged).To(BeTrue())
})
It("returns errors that occur when finishing a stream", func() {
testErr := errors.New("test error")
cf := &wire.CryptoFrame{Data: []byte("foobar")}
gomock.InOrder(
handshakeStream.EXPECT().HandleCryptoFrame(cf),
handshakeStream.EXPECT().GetCryptoData().Return([]byte("foobar")),
cs.EXPECT().HandleMessage([]byte("foobar"), protocol.EncryptionHandshake).Return(true),
handshakeStream.EXPECT().Finish().Return(testErr),
)
_, err := csm.HandleCryptoFrame(cf, protocol.EncryptionHandshake)
Expect(err).To(MatchError(err))
})
It("errors for unknown encryption levels", func() {
_, err := csm.HandleCryptoFrame(&wire.CryptoFrame{}, protocol.Encryption1RTT)
Expect(err).To(MatchError("received CRYPTO frame with unexpected encryption level: 1-RTT"))
})
})