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fix flaky proxy tests

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This commit is contained in:
Marten Seemann
2017-06-16 13:24:13 +02:00
parent 95c3db90a8
commit ab1aaf9355
1 changed files with 19 additions and 9 deletions
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28
integrationtests/proxy/proxy_test.go
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@@ -257,7 +257,16 @@ var _ = Describe("QUIC Proxy", func() {
})
Context("Delay Callback", func() {
expectDelay := func(startTime time.Time, rtt time.Duration, numRTTs int) {
expectedReceiveTime := startTime.Add(time.Duration(numRTTs) * rtt)
Expect(time.Now()).To(SatisfyAll(
BeTemporally(">=", expectedReceiveTime),
BeTemporally("<", expectedReceiveTime.Add(rtt/2)),
))
}
It("delays incoming packets", func() {
delay := 300 * time.Millisecond
opts := Opts{
RemoteAddr: serverAddr,
// delay packet 1 by 200 ms
@@ -267,7 +276,7 @@ var _ = Describe("QUIC Proxy", func() {
if d == DirectionOutgoing {
return 0
}
return time.Duration(200*p) * time.Millisecond
return time.Duration(p) * delay
},
}
startProxy(opts)
@@ -279,14 +288,15 @@ var _ = Describe("QUIC Proxy", func() {
Expect(err).ToNot(HaveOccurred())
}
Eventually(func() []packetData { return serverReceivedPackets }).Should(HaveLen(1))
Expect(time.Now()).To(BeTemporally("~", start.Add(200*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 1)
Eventually(func() []packetData { return serverReceivedPackets }).Should(HaveLen(2))
Expect(time.Now()).To(BeTemporally("~", start.Add(400*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 2)
Eventually(func() []packetData { return serverReceivedPackets }).Should(HaveLen(3))
Expect(time.Now()).To(BeTemporally("~", start.Add(600*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 3)
})
It("delays outgoing packets", func() {
delay := 300 * time.Millisecond
opts := Opts{
RemoteAddr: serverAddr,
// delay packet 1 by 200 ms
@@ -296,7 +306,7 @@ var _ = Describe("QUIC Proxy", func() {
if d == DirectionIncoming {
return 0
}
return time.Duration(200*p) * time.Millisecond
return time.Duration(p) * delay
},
}
startProxy(opts)
@@ -324,13 +334,13 @@ var _ = Describe("QUIC Proxy", func() {
}
// the packets should have arrived immediately at the server
Eventually(func() []packetData { return serverReceivedPackets }).Should(HaveLen(3))
Expect(time.Now()).To(BeTemporally("~", start, 50*time.Millisecond))
expectDelay(start, delay, 0)
Eventually(func() []packetData { return clientReceivedPackets }).Should(HaveLen(1))
Expect(time.Now()).To(BeTemporally("~", start.Add(200*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 1)
Eventually(func() []packetData { return clientReceivedPackets }).Should(HaveLen(2))
Expect(time.Now()).To(BeTemporally("~", start.Add(400*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 2)
Eventually(func() []packetData { return clientReceivedPackets }).Should(HaveLen(3))
Expect(time.Now()).To(BeTemporally("~", start.Add(600*time.Millisecond), 50*time.Millisecond))
expectDelay(start, delay, 3)
})
})
})