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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
|
/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package test.ranges
import kotlin.test.*
public class RangeTest {
@Test fun intRange() {
val range = -5..9
assertFalse(-1000 in range)
assertFalse(-6 in range)
assertTrue(-5 in range)
assertTrue(-4 in range)
assertTrue(0 in range)
assertTrue(3 in range)
assertTrue(8 in range)
assertTrue(9 in range)
assertFalse(10 in range)
assertFalse(9000 in range)
assertFalse(range.isEmpty())
assertTrue(9 in (range as ClosedRange<Int>))
assertFalse((range as ClosedRange<Int>).isEmpty())
assertTrue(1.toShort() in range)
assertTrue(1.toByte() in range)
assertTrue(1.toLong() in range)
run @Suppress("DEPRECATION") {
assertTrue(1.toFloat() in range)
assertTrue(1.toDouble() in range)
}
assertFalse(Long.MAX_VALUE in range)
assertFalse(null in range)
assertTrue(1 as Int? in range)
assertFalse(10 as Int? in range)
val openRange = 1 until 10
assertTrue(9 in openRange)
assertFalse(10 in openRange)
assertTrue((1 until Int.MIN_VALUE).isEmpty())
}
@Test fun byteRange() {
val range = (-5).toByte()..9.toByte()
assertFalse((-100).toByte() in range)
assertFalse((-6).toByte() in range)
assertTrue((-5).toByte() in range)
assertTrue((-4).toByte() in range)
assertTrue(0.toByte() in range)
assertTrue(3.toByte() in range)
assertTrue(8.toByte() in range)
assertTrue(9.toByte() in range)
assertFalse(10.toByte() in range)
assertFalse(111.toByte() in range)
assertFalse(range.isEmpty())
assertTrue(1.toShort() in range)
assertTrue(1.toInt() in range)
assertTrue(1.toLong() in range)
run @Suppress("DEPRECATION") {
assertTrue(1.toFloat() in range)
assertTrue(1.toDouble() in range)
}
assertFalse(Long.MAX_VALUE in range)
// assertTrue(1.toByte() as Byte? in range) // expected not to compile
val openRange = 1.toByte() until 10.toByte()
assertTrue(9.toByte() in openRange)
assertFalse(10.toByte() in openRange)
// byte arguments now construct IntRange so no overflow here
assertTrue((0.toByte() until Byte.MIN_VALUE).isEmpty())
assertTrue((0.toByte() until Int.MIN_VALUE).isEmpty())
}
@Test fun shortRange() {
val range = (-5).toShort()..9.toShort()
assertFalse((-1000).toShort() in range)
assertFalse((-6).toShort() in range)
assertTrue((-5).toShort() in range)
assertTrue((-4).toShort() in range)
assertTrue(0.toShort() in range)
assertTrue(3.toShort() in range)
assertTrue(8.toShort() in range)
assertTrue(9.toShort() in range)
assertFalse(10.toShort() in range)
assertFalse(239.toShort() in range)
assertFalse(range.isEmpty())
assertTrue(1.toByte() in range)
assertTrue(1.toInt() in range)
assertTrue(1.toLong() in range)
run @Suppress("DEPRECATION") {
assertTrue(1.toFloat() in range)
assertTrue(1.toDouble() in range)
}
assertFalse(Long.MAX_VALUE in range)
// assertTrue(1.toShort() as Short? in range) // expected not to compile
val openRange = 1.toShort() until 10.toShort()
assertTrue(9.toShort() in openRange)
assertFalse(10.toShort() in openRange)
assertTrue((0.toShort() until Short.MIN_VALUE).isEmpty())
assertTrue((0.toShort() until Int.MIN_VALUE).isEmpty())
}
@Test fun longRange() {
val range = -5L..9L
assertFalse(-10000000L in range)
assertFalse(-6L in range)
assertTrue(-5L in range)
assertTrue(-4L in range)
assertTrue(0L in range)
assertTrue(3L in range)
assertTrue(8L in range)
assertTrue(9L in range)
assertFalse(10L in range)
assertFalse(10000000L in range)
assertFalse(range.isEmpty())
assertTrue(9 in (range as ClosedRange<Long>))
assertFalse((range as ClosedRange<Long>).isEmpty())
assertTrue(1.toByte() in range)
assertTrue(1.toShort() in range)
assertTrue(1.toInt() in range)
run @Suppress("DEPRECATION") {
assertTrue(1.toFloat() in range)
assertTrue(1.toDouble() in range)
assertFalse(Double.MAX_VALUE in range)
}
assertFalse(null in range)
assertTrue(1L as Long? in range)
assertFalse(10L as Long? in range)
val openRange = 1L until 10L
assertTrue(9L in openRange)
assertFalse(10L in openRange)
assertTrue((0 until Long.MIN_VALUE).isEmpty())
assertTrue((0L until Long.MIN_VALUE).isEmpty())
}
@Test fun charRange() {
val range = 'c'..'w'
assertFalse('0' in range)
assertFalse('b' in range)
assertTrue('c' in range)
assertTrue('d' in range)
assertTrue('h' in range)
assertTrue('m' in range)
assertTrue('v' in range)
assertTrue('w' in range)
assertFalse('z' in range)
assertFalse('\u1000' in range)
assertFalse(range.isEmpty())
assertTrue('v' in (range as ClosedRange<Char>))
assertFalse((range as ClosedRange<Char>).isEmpty())
assertFalse(null in range)
assertTrue('p' as Char? in range)
assertFalse('z' as Char? in range)
val openRange = 'A' until 'Z'
assertTrue('Y' in openRange)
assertFalse('Z' in openRange)
assertTrue(('A' until Char.MIN_VALUE).isEmpty())
}
@Test fun doubleRange() {
val range = -1.0..3.14159265358979
assertFalse(-1e200 in range)
assertFalse(-100.0 in range)
assertFalse(-1.00000000001 in range)
assertTrue(-1.0 in range)
assertTrue(-0.99999999999 in range)
assertTrue(0.0 in range)
assertTrue(1.5 in range)
assertTrue(3.1415 in range)
assertTrue(3.14159265358979 in range)
assertFalse(3.15 in range)
assertFalse(10.0 in range)
assertFalse(1e200 in range)
assertFalse(range.isEmpty())
run @Suppress("DEPRECATION") {
assertTrue(1.toByte() in range)
assertTrue(1.toShort() in range)
assertTrue(1.toInt() in range)
assertTrue(1.toLong() in range)
}
assertTrue(1.toFloat() in range)
val zeroRange = 0.0..-0.0
assertFalse(zeroRange.isEmpty())
assertTrue(-0.0 in zeroRange)
assertTrue(-0.0F in zeroRange)
val normalZeroRange = -0.0..0.0
assertEquals(zeroRange, normalZeroRange)
assertEquals(zeroRange.hashCode(), normalZeroRange.hashCode())
val nanRange = 0.0..Double.NaN
assertFalse(1.0 in nanRange)
assertFalse(Double.NaN in nanRange)
assertFalse(Float.NaN in nanRange)
assertTrue(nanRange.isEmpty())
val halfInfRange = 0.0..Double.POSITIVE_INFINITY
assertTrue(Double.POSITIVE_INFINITY in halfInfRange)
assertFalse(Double.NEGATIVE_INFINITY in halfInfRange)
assertFalse(Double.NaN in halfInfRange)
assertTrue(Float.POSITIVE_INFINITY in halfInfRange)
}
@Test fun floatRange() {
val range = -1.0f..3.14159f
assertFalse(-1e30f in range)
assertFalse(-100.0f in range)
assertFalse(-1.00001f in range)
assertTrue(-1.0f in range)
assertTrue(-0.99999f in range)
assertTrue(0.0f in range)
assertTrue(1.5f in range)
assertTrue(3.1415f in range)
assertTrue(3.14159f in range)
assertFalse(3.15f in range)
assertFalse(10.0f in range)
assertFalse(1e30f in range)
assertFalse(range.isEmpty())
run @Suppress("DEPRECATION") {
assertTrue(1.toByte() in range)
assertTrue(1.toShort() in range)
assertTrue(1.toInt() in range)
assertTrue(1.toLong() in range)
}
assertTrue(1.toDouble() in range)
assertFalse(Double.MAX_VALUE in range)
val zeroRange = 0.0F..-0.0F
assertFalse(zeroRange.isEmpty())
assertTrue(-0.0F in zeroRange)
val normalZeroRange = -0.0F..0.0F
assertEquals(zeroRange, normalZeroRange)
assertEquals(zeroRange.hashCode(), normalZeroRange.hashCode())
val nanRange = 0.0F..Float.NaN
assertFalse(1.0F in nanRange)
assertFalse(Float.NaN in nanRange)
assertTrue(nanRange.isEmpty())
val halfInfRange = 0.0F..Float.POSITIVE_INFINITY
assertTrue(Float.POSITIVE_INFINITY in halfInfRange)
assertFalse(Float.NEGATIVE_INFINITY in halfInfRange)
assertFalse(Float.NaN in halfInfRange)
assertTrue(Double.POSITIVE_INFINITY in halfInfRange)
assertTrue(Double.MAX_VALUE in halfInfRange)
}
@Suppress("EmptyRange")
@Test fun isEmpty() {
assertTrue((2..1).isEmpty())
assertTrue((2L..0L).isEmpty())
assertTrue((1.toShort()..(-1).toShort()).isEmpty())
assertTrue((0.toByte()..(-1).toByte()).isEmpty())
assertTrue((0f..-3.14f).isEmpty())
assertTrue((-2.72..-3.14).isEmpty())
assertTrue(('z'..'x').isEmpty())
assertTrue((1 downTo 2).isEmpty())
assertTrue((0L downTo 2L).isEmpty())
assertFalse((2 downTo 1).isEmpty())
assertFalse((2L downTo 0L).isEmpty())
assertTrue(('a' downTo 'z').isEmpty())
assertTrue(('z'..'a' step 2).isEmpty())
assertTrue(("range".."progression").isEmpty())
}
@Suppress("ReplaceAssertBooleanWithAssertEquality", "EmptyRange")
@Test fun emptyEquals() {
assertTrue(IntRange.EMPTY == IntRange.EMPTY)
assertEquals(IntRange.EMPTY, IntRange.EMPTY)
assertEquals(0L..42L, 0L..42L)
assertEquals(0L..4200000042000000L, 0L..4200000042000000L)
assertEquals(3 downTo 0, 3 downTo 0)
assertEquals(2..1, 1..0)
assertEquals(2L..1L, 1L..0L)
assertEquals(2.toShort()..1.toShort(), 1.toShort()..0.toShort())
assertEquals(2.toByte()..1.toByte(), 1.toByte()..0.toByte())
assertEquals(0f..-3.14f, 3.14f..0f)
assertEquals(-2.0..-3.0, 3.0..2.0)
assertEquals('b'..'a', 'c'..'b')
assertTrue(1 downTo 2 == 2 downTo 3)
assertTrue(-1L downTo 0L == -2L downTo -1L)
assertEquals('j'..'a' step 4, 'u'..'q' step 2)
assertFalse(0..1 == IntRange.EMPTY)
assertEquals("range".."progression", "hashcode".."equals")
assertFalse(("aa".."bb") == ("aaa".."bbb"))
}
@Suppress("EmptyRange")
@Test fun emptyHashCode() {
assertEquals((0..42).hashCode(), (0..42).hashCode())
assertEquals((1.23..4.56).hashCode(), (1.23..4.56).hashCode())
assertEquals((0..-1).hashCode(), IntRange.EMPTY.hashCode())
assertEquals((2L..1L).hashCode(), (1L..0L).hashCode())
assertEquals((0.toShort()..(-1).toShort()).hashCode(), (42.toShort()..0.toShort()).hashCode())
assertEquals((0.toByte()..(-1).toByte()).hashCode(), (42.toByte()..0.toByte()).hashCode())
assertEquals((0f..-3.14f).hashCode(), (2.39f..1.41f).hashCode())
assertEquals((0.0..-10.0).hashCode(), (10.0..0.0).hashCode())
assertEquals(('z'..'x').hashCode(), ('l'..'k').hashCode())
assertEquals((1 downTo 2).hashCode(), (2 downTo 3).hashCode())
assertEquals((1L downTo 2L).hashCode(), (2L downTo 3L).hashCode())
assertEquals(('a' downTo 'b').hashCode(), ('c' downTo 'd').hashCode())
assertEquals(("range".."progression").hashCode(), ("hashcode".."equals").hashCode())
}
@Test fun comparableRange() {
val range = "island".."isle"
assertFalse("apple" in range)
assertFalse("icicle" in range)
assertTrue("island" in range)
assertTrue("isle" in range)
assertTrue("islandic" in range)
assertFalse("item" in range)
assertFalse("trail" in range)
assertFalse(range.isEmpty())
}
private fun assertFailsWithIllegalArgument(f: () -> Unit) = assertFailsWith<IllegalArgumentException> { f() }
@Test fun illegalProgressionCreation() {
// create Progression explicitly with increment = 0
assertFailsWithIllegalArgument { IntProgression.fromClosedRange(0, 5, 0) }
assertFailsWithIllegalArgument { LongProgression.fromClosedRange(0, 5, 0) }
assertFailsWithIllegalArgument { CharProgression.fromClosedRange('a', 'z', 0) }
assertFailsWithIllegalArgument { 0..5 step 0 }
assertFailsWithIllegalArgument { 0.toByte()..5.toByte() step 0 }
assertFailsWithIllegalArgument { 0.toShort()..5.toShort() step 0 }
assertFailsWithIllegalArgument { 0L..5L step 0L }
assertFailsWithIllegalArgument { 'a'..'z' step 0 }
assertFailsWithIllegalArgument { 0 downTo -5 step 0 }
assertFailsWithIllegalArgument { 0.toByte() downTo (-5).toByte() step 0 }
assertFailsWithIllegalArgument { 0.toShort() downTo (-5).toShort() step 0 }
assertFailsWithIllegalArgument { 0L downTo -5L step 0L }
assertFailsWithIllegalArgument { 'z' downTo 'a' step 0 }
assertFailsWithIllegalArgument { 0..5 step -2 }
assertFailsWithIllegalArgument { 0.toByte()..5.toByte() step -2 }
assertFailsWithIllegalArgument { 0.toShort()..5.toShort() step -2 }
assertFailsWithIllegalArgument { 0L..5L step -2L }
assertFailsWithIllegalArgument { 'a'..'z' step -2 }
assertFailsWithIllegalArgument { 0 downTo -5 step -2 }
assertFailsWithIllegalArgument { 0.toByte() downTo (-5).toByte() step -2 }
assertFailsWithIllegalArgument { 0.toShort() downTo (-5).toShort() step -2 }
assertFailsWithIllegalArgument { 0L downTo -5L step -2L }
assertFailsWithIllegalArgument { 'z' downTo 'a' step -2 }
}
@Test fun stepSizeIsTooLow() {
assertFailsWithIllegalArgument { CharProgression.fromClosedRange('a', 'b', Int.MIN_VALUE) }
assertFailsWithIllegalArgument { IntProgression.fromClosedRange(0, 1, Int.MIN_VALUE) }
assertFailsWithIllegalArgument { LongProgression.fromClosedRange(0, 1, Long.MIN_VALUE) }
}
@Test fun randomInEmptyRange() {
assertFailsWith<NoSuchElementException> { IntRange.EMPTY.random() }
assertFailsWith<NoSuchElementException> { LongRange.EMPTY.random() }
assertFailsWith<NoSuchElementException> { CharRange.EMPTY.random() }
}
}
|
