1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
// Copyright 2016 The Go 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 (
"fmt"
"math"
"reflect"
"testing"
)
func makeWriteNonStreamRequest() FrameWriteRequest {
return FrameWriteRequest{writeSettingsAck{}, nil, nil}
}
func makeWriteHeadersRequest(streamID uint32) FrameWriteRequest {
st := &stream{id: streamID}
return FrameWriteRequest{&writeResHeaders{streamID: streamID, httpResCode: 200}, st, nil}
}
func checkConsume(wr FrameWriteRequest, nbytes int32, want []FrameWriteRequest) error {
consumed, rest, n := wr.Consume(nbytes)
var wantConsumed, wantRest FrameWriteRequest
switch len(want) {
case 0:
case 1:
wantConsumed = want[0]
case 2:
wantConsumed = want[0]
wantRest = want[1]
}
if !reflect.DeepEqual(consumed, wantConsumed) || !reflect.DeepEqual(rest, wantRest) || n != len(want) {
return fmt.Errorf("got %v, %v, %v\nwant %v, %v, %v", consumed, rest, n, wantConsumed, wantRest, len(want))
}
return nil
}
func TestFrameWriteRequestNonData(t *testing.T) {
wr := makeWriteNonStreamRequest()
if got, want := wr.DataSize(), 0; got != want {
t.Errorf("DataSize: got %v, want %v", got, want)
}
// Non-DATA frames are always consumed whole.
if err := checkConsume(wr, 0, []FrameWriteRequest{wr}); err != nil {
t.Errorf("Consume:\n%v", err)
}
}
func TestFrameWriteRequestData(t *testing.T) {
st := &stream{
id: 1,
sc: &serverConn{maxFrameSize: 16},
}
const size = 32
wr := FrameWriteRequest{&writeData{st.id, make([]byte, size), true}, st, make(chan error)}
if got, want := wr.DataSize(), size; got != want {
t.Errorf("DataSize: got %v, want %v", got, want)
}
// No flow-control bytes available: cannot consume anything.
if err := checkConsume(wr, math.MaxInt32, []FrameWriteRequest{}); err != nil {
t.Errorf("Consume(limited by flow control):\n%v", err)
}
// Add enough flow-control bytes to consume the entire frame,
// but we're now restricted by st.sc.maxFrameSize.
st.flow.add(size)
want := []FrameWriteRequest{
{
write: &writeData{st.id, make([]byte, st.sc.maxFrameSize), false},
stream: st,
done: nil,
},
{
write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize), true},
stream: st,
done: wr.done,
},
}
if err := checkConsume(wr, math.MaxInt32, want); err != nil {
t.Errorf("Consume(limited by maxFrameSize):\n%v", err)
}
rest := want[1]
// Consume 8 bytes from the remaining frame.
want = []FrameWriteRequest{
{
write: &writeData{st.id, make([]byte, 8), false},
stream: st,
done: nil,
},
{
write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize-8), true},
stream: st,
done: wr.done,
},
}
if err := checkConsume(rest, 8, want); err != nil {
t.Errorf("Consume(8):\n%v", err)
}
rest = want[1]
// Consume all remaining bytes.
want = []FrameWriteRequest{
{
write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize-8), true},
stream: st,
done: wr.done,
},
}
if err := checkConsume(rest, math.MaxInt32, want); err != nil {
t.Errorf("Consume(remainder):\n%v", err)
}
}
func TestFrameWriteRequest_StreamID(t *testing.T) {
const streamID = 123
wr := FrameWriteRequest{write: streamError(streamID, ErrCodeNo)}
if got := wr.StreamID(); got != streamID {
t.Errorf("FrameWriteRequest(StreamError) = %v; want %v", got, streamID)
}
}
|
