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
|
/* __ *\
** ________ ___ / / ___ __ ____ Scala.js Test Suite **
** / __/ __// _ | / / / _ | __ / // __/ (c) 2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ **
** /____/\___/_/ |_/____/_/ | |__/ /____/ **
** |/____/ **
\* */
package scala.scalajs.testsuite.typedarray
import org.scalajs.jasminetest.JasmineTest
import scala.scalajs.js
import js.typedarray._
object TypedArrayConversionTest extends JasmineTest {
when("typedarray").
describe("TypedArray to scala.Array conversions") {
def data(factor: Double) = js.Array(-1,1,2,3,4,5,6,7,8).map((_: Int) * factor)
def sum(factor: Double) = (8 * 9 / 2 - 1) * factor
it("should convert an Int8Array to a scala.Array[Byte]") {
val x = new Int8Array(data(1))
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Byte]]).toBeTruthy
expect(y.sum).toEqual(sum(1))
// Ensure its a copy
x(0) = 0
expect(y.sum).toEqual(sum(1))
}
it("should convert an Int16Array to a scala.Array[Short]") {
val x = new Int16Array(data(100))
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Short]]).toBeTruthy
expect(y.sum).toEqual(sum(100))
// Ensure its a copy
x(0) = 0
expect(y.sum).toEqual(sum(100))
}
it("should convert an Uint16Array to a scala.Array[Char]") {
val data = js.Array((1 to 6).map(_ * 10000): _*)
val sum = (6*7/2*10000).toChar
val x = new Uint16Array(data)
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Char]]).toBeTruthy
expect(y.sum).toEqual(sum)
// Ensure its a copy
x(0) = 0
expect(y.sum).toEqual(sum)
}
it("should convert an Int32Array to a scala.Array[Int]") {
val x = new Int32Array(data(10000))
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Int]]).toBeTruthy
expect(y.sum).toEqual(sum(10000))
// Ensure its a copy
x(0) = 0
expect(y.sum).toEqual(sum(10000))
}
it("should convert a Float32Array to a scala.Array[Float]") {
val x = new Float32Array(data(0.2))
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Float]]).toBeTruthy
expect(y.sum).toBeCloseTo(sum(0.2), 6)
// Ensure its a copy
x(0) = 0
expect(y.sum).toBeCloseTo(sum(0.2), 6)
}
it("should convert a Float64Array to a scala.Array[Double]") {
val x = new Float64Array(data(0.2))
val y = x.toArray
expect(y.getClass == classOf[scala.Array[Double]]).toBeTruthy
expect(y.sum).toEqual(sum(0.2))
// Ensure its a copy
x(0) = 0
expect(y.sum).toEqual(sum(0.2))
}
}
when("typedarray").
describe("scala.Array to TypedArray conversions") {
it("should convert a scala.Array[Byte] to an Int8Array") {
val x = (Byte.MinValue to Byte.MaxValue).map(_.toByte).toArray
val y = x.toTypedArray
expect(y.isInstanceOf[Int8Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i))
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(Byte.MinValue)
}
it("should convert a scala.Array[Short] to an Int16Array") {
val x = ((Short.MinValue to (Short.MinValue + 1000)) ++
((Short.MaxValue - 1000) to Short.MaxValue)).map(_.toShort).toArray
val y = x.toTypedArray
expect(y.isInstanceOf[Int16Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i))
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(Short.MinValue)
}
it("should convert a scala.Array[Char] to an Uint16Array") {
val x = ((Char.MaxValue - 1000) to Char.MaxValue).map(_.toChar).toArray
val y = x.toTypedArray
expect(y.isInstanceOf[Uint16Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i).toInt)
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(Char.MaxValue - 1000)
}
it("should convert a scala.Array[Int] to an Int32Array") {
val x = ((Int.MinValue to (Int.MinValue + 1000)) ++
((Int.MaxValue - 1000) to Int.MaxValue)).toArray
val y = x.toTypedArray
expect(y.isInstanceOf[Int32Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i))
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(Int.MinValue)
}
it("should convert a scala.Array[Float] to a Float32Array") {
val x = Array[Float](1.0f, 2.0f, -2.3f, 5.3f)
val y = x.toTypedArray
expect(y.isInstanceOf[Float32Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i))
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(1.0f)
}
it("should convert a scala.Array[Double] to a Float64Array") {
val x = Array[Double](1.0, 2.0, -2.3, 5.3)
val y = x.toTypedArray
expect(y.isInstanceOf[Float64Array]).toBeTruthy
expect(y.length).toBe(x.length)
for (i <- 0 until y.length)
expect(y(i)).toBe(x(i))
// Ensure its a copy
x(0) = 0
expect(y(0)).toBe(1.0)
}
}
}
|
