/
stream_test.go
218 lines (182 loc) · 7.75 KB
/
stream_test.go
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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package http2
import (
gc "gopkg.in/check.v1"
)
type StreamTest struct {
pump chan int
stream *Stream
}
type errCase struct {
level ErrorLevel
code ErrorCode
}
type successCase struct {
state StreamState
pumpOpened bool
pumpClosed bool
}
type transitionCases struct {
onRecvData interface{}
onRecvDataWithFin interface{}
onRecvHeaders interface{}
onRecvHeadersWithFin interface{}
onRecvPushPromise interface{}
onRecvReset interface{}
onSendData interface{}
onSendDataWithFin interface{}
onSendHeaders interface{}
onSendHeadersWithFin interface{}
onSendPushPromise interface{}
onSendReset interface{}
}
func defaultTransitionOutcomes() transitionCases {
return transitionCases{
onRecvData: &errCase{ConnectionError, PROTOCOL_ERROR},
onRecvDataWithFin: &errCase{ConnectionError, PROTOCOL_ERROR},
onRecvHeaders: &errCase{ConnectionError, PROTOCOL_ERROR},
onRecvHeadersWithFin: &errCase{ConnectionError, PROTOCOL_ERROR},
onRecvPushPromise: &errCase{ConnectionError, PROTOCOL_ERROR},
onRecvReset: &successCase{Closed, false, true},
onSendData: &errCase{ConnectionError, INTERNAL_ERROR},
onSendDataWithFin: &errCase{ConnectionError, INTERNAL_ERROR},
onSendHeaders: &errCase{ConnectionError, INTERNAL_ERROR},
onSendHeadersWithFin: &errCase{ConnectionError, INTERNAL_ERROR},
onSendPushPromise: &errCase{ConnectionError, INTERNAL_ERROR},
onSendReset: &successCase{ClosedWithSentReset, false, true},
}
}
func verifyTransitions(model Stream, outcomes transitionCases, c *gc.C) {
var pump chan int
var underTest *Stream
from := func() *Stream {
pump = make(chan int, 1)
underTest = &Stream{
ID: model.ID,
State: model.State,
SendFlowAvailable: 4096,
SendFlowPump: pump,
}
return underTest
}
verify := func(outcome interface{}, err *Error) {
if expected, ok := outcome.(*errCase); ok {
c.Check(err, gc.NotNil)
c.Check(err.Level, gc.Equals, expected.level)
c.Check(err.Code, gc.Equals, expected.code)
return
}
expected := outcome.(*successCase)
c.Check(underTest.State, gc.Equals, expected.state)
select {
case r, ok := <-pump:
if expected.pumpOpened {
c.Check(ok, gc.Equals, true)
c.Check(r, gc.Equals, underTest.SendFlowAvailable)
} else if expected.pumpClosed {
c.Check(ok, gc.Equals, false)
} else {
c.Error("unexpected pump update: ", r, ok)
}
default:
c.Check(expected.pumpOpened, gc.Equals, false)
c.Check(expected.pumpClosed, gc.Equals, false)
}
if c.Failed() {
panic(false) // Generate a callstack.
}
}
verify(outcomes.onRecvData, from().onData(Receive, false))
verify(outcomes.onRecvDataWithFin, from().onData(Receive, true))
verify(outcomes.onRecvHeaders, from().onHeaders(Receive, false))
verify(outcomes.onRecvHeadersWithFin, from().onHeaders(Receive, true))
verify(outcomes.onRecvPushPromise, from().onPushPromise(Receive))
verify(outcomes.onRecvReset, from().onReset(Receive))
verify(outcomes.onSendData, from().onData(Send, false))
verify(outcomes.onSendDataWithFin, from().onData(Send, true))
verify(outcomes.onSendHeaders, from().onHeaders(Send, false))
verify(outcomes.onSendHeadersWithFin, from().onHeaders(Send, true))
verify(outcomes.onSendPushPromise, from().onPushPromise(Send))
verify(outcomes.onSendReset, from().onReset(Send))
}
func (t *StreamTest) TestTransitionsFromIdle(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvHeaders = &successCase{Open, true, false}
cases.onRecvHeadersWithFin = &successCase{HalfClosedRemote, true, false}
cases.onRecvPushPromise = &successCase{ReservedRemote, false, true}
cases.onRecvReset = &errCase{ConnectionError, PROTOCOL_ERROR}
cases.onSendHeaders = &successCase{Open, true, false}
cases.onSendHeadersWithFin = &successCase{HalfClosedLocal, false, true}
cases.onSendPushPromise = &successCase{ReservedLocal, false, false}
cases.onSendReset = &errCase{ConnectionError, INTERNAL_ERROR}
verifyTransitions(Stream{State: Idle}, cases, c)
}
func (t *StreamTest) TestTransitionsFromReservedLocal(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onSendHeaders = &successCase{HalfClosedRemote, true, false}
cases.onSendHeadersWithFin = &successCase{Closed, false, true}
verifyTransitions(Stream{State: ReservedLocal}, cases, c)
}
func (t *StreamTest) TestTransitionsFromReservedRemote(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvHeaders = &successCase{HalfClosedLocal, false, false}
cases.onRecvHeadersWithFin = &successCase{Closed, false, false}
cases.onRecvReset = &successCase{Closed, false, false}
cases.onSendReset = &successCase{ClosedWithSentReset, false, false}
verifyTransitions(Stream{State: ReservedRemote}, cases, c)
}
func (t *StreamTest) TestTransitionsFromOpen(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvData = &successCase{Open, false, false}
cases.onRecvDataWithFin = &successCase{HalfClosedRemote, false, false}
cases.onRecvHeaders = &successCase{Open, false, false}
cases.onRecvHeadersWithFin = &successCase{HalfClosedRemote, false, false}
cases.onSendData = &successCase{Open, false, false}
cases.onSendDataWithFin = &successCase{HalfClosedLocal, false, true}
cases.onSendHeaders = &successCase{Open, false, false}
cases.onSendHeadersWithFin = &successCase{HalfClosedLocal, false, true}
verifyTransitions(Stream{State: Open}, cases, c)
}
func (t *StreamTest) TestTransitionsFromHalfClosedRemote(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onSendData = &successCase{HalfClosedRemote, false, false}
cases.onSendDataWithFin = &successCase{Closed, false, true}
cases.onSendHeaders = &successCase{HalfClosedRemote, false, false}
cases.onSendHeadersWithFin = &successCase{Closed, false, true}
verifyTransitions(Stream{State: HalfClosedRemote}, cases, c)
}
func (t *StreamTest) TestTransitionsFromHalfClosedLocal(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvData = &successCase{HalfClosedLocal, false, false}
cases.onRecvDataWithFin = &successCase{Closed, false, false}
cases.onRecvHeaders = &successCase{HalfClosedLocal, false, false}
cases.onRecvHeadersWithFin = &successCase{Closed, false, false}
cases.onRecvReset = &successCase{Closed, false, false}
cases.onSendReset = &successCase{ClosedWithSentReset, false, false}
verifyTransitions(Stream{State: HalfClosedLocal}, cases, c)
}
func (t *StreamTest) TestTransitionsFromClosed(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvData = &errCase{StreamError, STREAM_CLOSED}
cases.onRecvDataWithFin = &errCase{StreamError, STREAM_CLOSED}
cases.onRecvHeaders = &errCase{StreamError, STREAM_CLOSED}
cases.onRecvHeadersWithFin = &errCase{StreamError, STREAM_CLOSED}
cases.onRecvPushPromise = &errCase{StreamError, STREAM_CLOSED}
cases.onRecvReset = &successCase{Closed, false, false}
cases.onSendReset = &successCase{ClosedWithSentReset, false, false}
verifyTransitions(Stream{State: Closed}, cases, c)
}
func (t *StreamTest) TestTransitionsFromClosedWithSentReset(c *gc.C) {
cases := defaultTransitionOutcomes()
cases.onRecvData = &errCase{RecoverableError, STREAM_CLOSED}
cases.onRecvDataWithFin = &errCase{RecoverableError, STREAM_CLOSED}
cases.onRecvHeaders = &errCase{RecoverableError, STREAM_CLOSED}
cases.onRecvHeadersWithFin = &errCase{RecoverableError, STREAM_CLOSED}
cases.onRecvPushPromise = &errCase{RecoverableError, STREAM_CLOSED}
cases.onRecvReset = &errCase{RecoverableError, STREAM_CLOSED}
cases.onSendReset = &errCase{ConnectionError, INTERNAL_ERROR}
verifyTransitions(Stream{State: ClosedWithSentReset}, cases, c)
}
var _ = gc.Suite(&StreamTest{})