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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/*
This source file is part of the Swift.org open source project
Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import XCTest
import TSCBasic
import TSCTestSupport
struct ByteSequence: Sequence {
let bytes16 = [UInt8](repeating: 0, count: 1 << 4)
func makeIterator() -> ByteSequenceIterator {
return ByteSequenceIterator(bytes16: bytes16)
}
}
extension ByteSequence: ByteStreamable {
func write(to stream: WritableByteStream) {
stream.write(sequence: self)
}
}
struct ByteSequenceIterator: IteratorProtocol {
let bytes16: [UInt8]
var index: Int
init(bytes16: [UInt8]) {
self.bytes16 = bytes16
index = 0
}
mutating func next() -> UInt8? {
if index == bytes16.count { return nil }
defer { index += 1 }
return bytes16[index]
}
}
class OutputByteStreamPerfTests: XCTestCasePerf {
func test1MBOfSequence_X10() {
#if canImport(Darwin)
let sequence = ByteSequence()
measure {
for _ in 0..<10 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 16) {
stream.send(sequence)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOfByte_X10() {
#if canImport(Darwin)
let byte = UInt8(0)
measure {
for _ in 0..<10 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 20) {
stream.send(byte)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOfCharacters_X1() {
#if canImport(Darwin)
measure {
for _ in 0..<1 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 20) {
stream.send(Character("X"))
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOf16ByteArrays_X100() {
#if canImport(Darwin)
// Test writing 1MB worth of 16 byte strings.
let bytes16 = [UInt8](repeating: 0, count: 1 << 4)
measure {
for _ in 0..<100 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 16) {
stream.send(bytes16)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
// This should give same performance as 16ByteArrays_X100.
func test1MBOf16ByteArraySlice_X100() {
#if canImport(Darwin)
let bytes32 = [UInt8](repeating: 0, count: 1 << 5)
// Test writing 1MB worth of 16 byte strings.
let bytes16 = bytes32.suffix(from: bytes32.count/2)
measure {
for _ in 0..<100 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 16) {
stream.send(bytes16)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOf1KByteArrays_X1000() {
#if canImport(Darwin)
// Test writing 1MB worth of 1K byte strings.
let bytes1k = [UInt8](repeating: 0, count: 1 << 10)
measure {
for _ in 0..<1000 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 10) {
stream.send(bytes1k)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOf16ByteStrings_X10() {
#if canImport(Darwin)
// Test writing 1MB worth of 16 byte strings.
let string16 = String(repeating: "X", count: 1 << 4)
measure {
for _ in 0..<10 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 16) {
stream.send(string16)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOf1KByteStrings_X100() {
#if canImport(Darwin)
// Test writing 1MB worth of 1K byte strings.
let bytes1k = String(repeating: "X", count: 1 << 10)
measure {
for _ in 0..<100 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 10) {
stream.send(bytes1k)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func test1MBOfJSONEncoded16ByteStrings_X10() {
#if canImport(Darwin)
// Test writing 1MB worth of JSON encoded 16 byte strings.
let string16 = String(repeating: "X", count: 1 << 4)
measure {
for _ in 0..<10 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 16) {
stream.writeJSONEscaped(string16)
}
XCTAssertEqual(stream.bytes.count, 1 << 20)
}
}
#endif
}
func testFormattedJSONOutput() {
#if canImport(Darwin)
// Test the writing of JSON formatted output using stream operators.
struct Thing {
var value: String
init(_ value: String) { self.value = value }
}
let listOfStrings: [String] = (0..<10).map { "This is the number: \($0)!\n" }
let listOfThings: [Thing] = listOfStrings.map(Thing.init)
measure {
for _ in 0..<10 {
let stream = BufferedOutputByteStream()
for _ in 0..<(1 << 10) {
for string in listOfStrings {
stream.send(Format.asJSON(string))
}
stream.send(Format.asJSON(listOfStrings))
stream.send(Format.asJSON(listOfThings, transform: { $0.value }))
}
XCTAssertGreaterThan(stream.bytes.count, 1000)
}
}
#endif
}
func testJSONToString_X100() {
#if canImport(Darwin)
let foo = JSON.dictionary([
"foo": .string("bar"),
"bar": .int(2),
"baz": .array([1, 2, 3].map(JSON.int)),
])
let bar = JSON.dictionary([
"poo": .array([foo, foo, foo]),
"foo": .int(1),
])
let baz = JSON.dictionary([
"poo": .array([foo, bar, foo]),
"foo": .int(1),
])
let json = JSON.array((0..<100).map { _ in baz })
measure {
for _ in 0..<100 {
let result = json.toString()
XCTAssertGreaterThan(result.utf8.count, 10)
}
}
#endif
}
}
|
