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
|
# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2019-2024, by Samuel Williams.
require "protocol/http2/connection_context"
require "json"
describe Protocol::HTTP2::Window do
let(:window) {subject.new}
with "#consume" do
it "can consume available capacity" do
expect(window).not.to be(:full?)
expect(window).to be(:available?)
expect(window.consume(100)).to be == 100
expect(window).not.to be(:full?)
window.consume(window.available)
expect(window).to be(:full?)
expect(window).not.to be(:available?)
end
end
with "#capacity=" do
it "fails if assignment to capacity causes the window to exceed the maximum flow control window size" do
expect do
window.capacity = Protocol::HTTP2::MAXIMUM_ALLOWED_WINDOW_SIZE + 1
end.to raise_exception(Protocol::HTTP2::FlowControlError)
end
end
with "#inspect" do
it "can generate a string representation" do
expect(window.inspect).to be =~ /available=65535 used=0 capacity=65535/
end
end
end
describe Protocol::HTTP2::LocalWindow do
let(:window) {subject.new}
with "#consume" do
it "can consume available capacity" do
window.consume(100)
expect(window.wanted).to be == 100
end
end
with "desired window size" do
let(:window) {subject.new(desired: 200)}
it "can consume available capacity" do
window.consume(window.available)
expect(window.wanted).to be == 200
end
it "is not limited if the half the desired capacity is available" do
expect(window).not.to be(:limited?)
# Consume the entire window:
window.consume(window.available)
expect(window).to be(:limited?)
# Expand the window by at least half the desired capacity:
window.expand(window.desired / 2)
expect(window).not.to be(:limited?)
end
end
with "#limited?" do
it "becomes limited after half the capacity is consumed" do
expect(window).not.to be(:limited?)
# Consume a little more than half:
window.consume(window.capacity / 2 + 2)
expect(window).to be(:limited?)
end
end
end
|
