forked from apache/commons-lang
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathNumberUtilsTest.java
More file actions
1895 lines (1700 loc) · 93 KB
/
NumberUtilsTest.java
File metadata and controls
1895 lines (1700 loc) · 93 KB
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
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.lang3.math;
import static org.apache.commons.lang3.LangAssertions.assertIllegalArgumentException;
import static org.apache.commons.lang3.LangAssertions.assertNullPointerException;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertInstanceOf;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.function.Function;
import org.apache.commons.lang3.AbstractLangTest;
import org.junit.jupiter.api.Test;
/**
* Tests {@link org.apache.commons.lang3.math.NumberUtils}.
*/
class NumberUtilsTest extends AbstractLangTest {
private static void assertCreateNumberZero(final String number, final Object zero, final Object negativeZero) {
assertEquals(zero, NumberUtils.createNumber(number), () -> "Input: " + number);
assertEquals(zero, NumberUtils.createNumber("+" + number), () -> "Input: +" + number);
assertEquals(negativeZero, NumberUtils.createNumber("-" + number), () -> "Input: -" + number);
}
private boolean checkCreateNumber(final String val) {
try {
final Object obj = NumberUtils.createNumber(val);
return obj != null;
} catch (final NumberFormatException e) {
return false;
}
}
@Test
public void compareByte() {
assertTrue(NumberUtils.compare((byte) -3, (byte) 0) < 0);
assertEquals(0, NumberUtils.compare((byte) 113, (byte) 113));
assertTrue(NumberUtils.compare((byte) 123, (byte) 32) > 0);
}
@Test
public void compareInt() {
assertTrue(NumberUtils.compare(-3, 0) < 0);
assertEquals(0, NumberUtils.compare(113, 113));
assertTrue(NumberUtils.compare(213, 32) > 0);
}
private void compareIsCreatableWithCreateNumber(final String val, final boolean expected) {
final boolean isValid = NumberUtils.isCreatable(val);
final boolean canCreate = checkCreateNumber(val);
assertTrue(isValid == expected && canCreate == expected, "Expecting " + expected
+ " for isCreatable/createNumber using \"" + val + "\" but got " + isValid + " and " + canCreate);
}
@SuppressWarnings("deprecation")
private void compareIsNumberWithCreateNumber(final String val, final boolean expected) {
final boolean isValid = NumberUtils.isNumber(val);
final boolean canCreate = checkCreateNumber(val);
assertTrue(isValid == expected && canCreate == expected, "Expecting " + expected
+ " for isNumber/createNumber using \"" + val + "\" but got " + isValid + " and " + canCreate);
}
@Test
public void compareLong() {
assertTrue(NumberUtils.compare(-3L, 0L) < 0);
assertEquals(0, NumberUtils.compare(113L, 113L));
assertTrue(NumberUtils.compare(213L, 32L) > 0);
}
@Test
public void compareShort() {
assertTrue(NumberUtils.compare((short) -3, (short) 0) < 0);
assertEquals(0, NumberUtils.compare((short) 113, (short) 113));
assertTrue(NumberUtils.compare((short) 213, (short) 32) > 0);
}
private boolean isApplyNonNull(final String s, final Function<String, ?> function) {
try {
assertNotNull(function.apply(s));
return true;
} catch (final Exception e) {
if (!s.matches(".*\\s.*")) {
e.printStackTrace();
}
return false;
}
}
private boolean isNumberFormatParsable(final String s) {
final NumberFormat instance = NumberFormat.getInstance();
try {
// Stops parsing when a space is found, then returns an object.
assertNotNull(instance.parse(s));
return true;
} catch (final ParseException e) {
return false;
}
}
private boolean isNumberIntegerOnlyFormatParsable(final String s) {
final NumberFormat instance = NumberFormat.getInstance();
instance.setParseIntegerOnly(true);
try {
// Stops parsing when a space is found, then returns an object.
assertNotNull(instance.parse(s));
return true;
} catch (final ParseException e) {
return false;
}
}
private boolean isParsableByte(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Byte::parseByte), s);
return parsable;
}
private boolean isParsableDouble(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Double::parseDouble), s);
return parsable;
}
private boolean isParsableFloat(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Float::parseFloat), s);
return parsable;
}
private boolean isParsableInteger(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Integer::parseInt), s);
return parsable;
}
private boolean isParsableLong(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Long::parseLong), s);
return parsable;
}
private boolean isParsableShort(final String s) {
final boolean parsable = NumberUtils.isParsable(s);
assertTrue(isNumberFormatParsable(s), s);
assertTrue(isNumberIntegerOnlyFormatParsable(s), s);
assertEquals(parsable, isApplyNonNull(s, Short::parseShort), s);
return parsable;
}
/**
* Test for {@link NumberUtils#toDouble(BigDecimal)}
*/
@Test
void testBigIntegerToDoubleBigInteger() {
assertEquals(0.0d, NumberUtils.toDouble((BigDecimal) null), "toDouble(BigInteger) 1 failed");
assertEquals(8.5d, NumberUtils.toDouble(BigDecimal.valueOf(8.5d)), "toDouble(BigInteger) 2 failed");
}
/**
* Test for {@link NumberUtils#toDouble(BigDecimal, double)}
*/
@Test
void testBigIntegerToDoubleBigIntegerD() {
assertEquals(1.1d, NumberUtils.toDouble((BigDecimal) null, 1.1d), "toDouble(BigInteger) 1 failed");
assertEquals(8.5d, NumberUtils.toDouble(BigDecimal.valueOf(8.5d), 1.1d), "toDouble(BigInteger) 2 failed");
}
// Testing JDK against old Lang functionality
@Test
void testCompareDouble() {
assertEquals(0, Double.compare(Double.NaN, Double.NaN));
assertEquals(Double.compare(Double.NaN, Double.POSITIVE_INFINITY), +1);
assertEquals(Double.compare(Double.NaN, Double.MAX_VALUE), +1);
assertEquals(Double.compare(Double.NaN, 1.2d), +1);
assertEquals(Double.compare(Double.NaN, 0.0d), +1);
assertEquals(Double.compare(Double.NaN, -0.0d), +1);
assertEquals(Double.compare(Double.NaN, -1.2d), +1);
assertEquals(Double.compare(Double.NaN, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(Double.NaN, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, Double.NaN), -1);
assertEquals(0, Double.compare(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY));
assertEquals(Double.compare(Double.POSITIVE_INFINITY, Double.MAX_VALUE), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, 1.2d), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, 0.0d), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, -0.0d), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, -1.2d), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(Double.MAX_VALUE, Double.NaN), -1);
assertEquals(Double.compare(Double.MAX_VALUE, Double.POSITIVE_INFINITY), -1);
assertEquals(0, Double.compare(Double.MAX_VALUE, Double.MAX_VALUE));
assertEquals(Double.compare(Double.MAX_VALUE, 1.2d), +1);
assertEquals(Double.compare(Double.MAX_VALUE, 0.0d), +1);
assertEquals(Double.compare(Double.MAX_VALUE, -0.0d), +1);
assertEquals(Double.compare(Double.MAX_VALUE, -1.2d), +1);
assertEquals(Double.compare(Double.MAX_VALUE, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(Double.MAX_VALUE, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(1.2d, Double.NaN), -1);
assertEquals(Double.compare(1.2d, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(1.2d, Double.MAX_VALUE), -1);
assertEquals(0, Double.compare(1.2d, 1.2d));
assertEquals(Double.compare(1.2d, 0.0d), +1);
assertEquals(Double.compare(1.2d, -0.0d), +1);
assertEquals(Double.compare(1.2d, -1.2d), +1);
assertEquals(Double.compare(1.2d, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(1.2d, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(0.0d, Double.NaN), -1);
assertEquals(Double.compare(0.0d, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(0.0d, Double.MAX_VALUE), -1);
assertEquals(Double.compare(0.0d, 1.2d), -1);
assertEquals(0, Double.compare(0.0d, 0.0d));
assertEquals(Double.compare(0.0d, -0.0d), +1);
assertEquals(Double.compare(0.0d, -1.2d), +1);
assertEquals(Double.compare(0.0d, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(0.0d, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(-0.0d, Double.NaN), -1);
assertEquals(Double.compare(-0.0d, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(-0.0d, Double.MAX_VALUE), -1);
assertEquals(Double.compare(-0.0d, 1.2d), -1);
assertEquals(Double.compare(-0.0d, 0.0d), -1);
assertEquals(0, Double.compare(-0.0d, -0.0d));
assertEquals(Double.compare(-0.0d, -1.2d), +1);
assertEquals(Double.compare(-0.0d, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(-0.0d, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(-1.2d, Double.NaN), -1);
assertEquals(Double.compare(-1.2d, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(-1.2d, Double.MAX_VALUE), -1);
assertEquals(Double.compare(-1.2d, 1.2d), -1);
assertEquals(Double.compare(-1.2d, 0.0d), -1);
assertEquals(Double.compare(-1.2d, -0.0d), -1);
assertEquals(0, Double.compare(-1.2d, -1.2d));
assertEquals(Double.compare(-1.2d, -Double.MAX_VALUE), +1);
assertEquals(Double.compare(-1.2d, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(-Double.MAX_VALUE, Double.NaN), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, Double.MAX_VALUE), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, 1.2d), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, 0.0d), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, -0.0d), -1);
assertEquals(Double.compare(-Double.MAX_VALUE, -1.2d), -1);
assertEquals(0, Double.compare(-Double.MAX_VALUE, -Double.MAX_VALUE));
assertEquals(Double.compare(-Double.MAX_VALUE, Double.NEGATIVE_INFINITY), +1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, Double.NaN), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, Double.MAX_VALUE), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, 1.2d), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, 0.0d), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, -0.0d), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, -1.2d), -1);
assertEquals(Double.compare(Double.NEGATIVE_INFINITY, -Double.MAX_VALUE), -1);
assertEquals(0, Double.compare(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY));
}
@Test
void testCompareFloat() {
assertEquals(0, Float.compare(Float.NaN, Float.NaN));
assertEquals(Float.compare(Float.NaN, Float.POSITIVE_INFINITY), +1);
assertEquals(Float.compare(Float.NaN, Float.MAX_VALUE), +1);
assertEquals(Float.compare(Float.NaN, 1.2f), +1);
assertEquals(Float.compare(Float.NaN, 0.0f), +1);
assertEquals(Float.compare(Float.NaN, -0.0f), +1);
assertEquals(Float.compare(Float.NaN, -1.2f), +1);
assertEquals(Float.compare(Float.NaN, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(Float.NaN, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, Float.NaN), -1);
assertEquals(0, Float.compare(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY));
assertEquals(Float.compare(Float.POSITIVE_INFINITY, Float.MAX_VALUE), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, 1.2f), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, 0.0f), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, -0.0f), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, -1.2f), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(Float.POSITIVE_INFINITY, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(Float.MAX_VALUE, Float.NaN), -1);
assertEquals(Float.compare(Float.MAX_VALUE, Float.POSITIVE_INFINITY), -1);
assertEquals(0, Float.compare(Float.MAX_VALUE, Float.MAX_VALUE));
assertEquals(Float.compare(Float.MAX_VALUE, 1.2f), +1);
assertEquals(Float.compare(Float.MAX_VALUE, 0.0f), +1);
assertEquals(Float.compare(Float.MAX_VALUE, -0.0f), +1);
assertEquals(Float.compare(Float.MAX_VALUE, -1.2f), +1);
assertEquals(Float.compare(Float.MAX_VALUE, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(Float.MAX_VALUE, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(1.2f, Float.NaN), -1);
assertEquals(Float.compare(1.2f, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(1.2f, Float.MAX_VALUE), -1);
assertEquals(0, Float.compare(1.2f, 1.2f));
assertEquals(Float.compare(1.2f, 0.0f), +1);
assertEquals(Float.compare(1.2f, -0.0f), +1);
assertEquals(Float.compare(1.2f, -1.2f), +1);
assertEquals(Float.compare(1.2f, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(1.2f, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(0.0f, Float.NaN), -1);
assertEquals(Float.compare(0.0f, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(0.0f, Float.MAX_VALUE), -1);
assertEquals(Float.compare(0.0f, 1.2f), -1);
assertEquals(0, Float.compare(0.0f, 0.0f));
assertEquals(Float.compare(0.0f, -0.0f), +1);
assertEquals(Float.compare(0.0f, -1.2f), +1);
assertEquals(Float.compare(0.0f, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(0.0f, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(-0.0f, Float.NaN), -1);
assertEquals(Float.compare(-0.0f, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(-0.0f, Float.MAX_VALUE), -1);
assertEquals(Float.compare(-0.0f, 1.2f), -1);
assertEquals(Float.compare(-0.0f, 0.0f), -1);
assertEquals(0, Float.compare(-0.0f, -0.0f));
assertEquals(Float.compare(-0.0f, -1.2f), +1);
assertEquals(Float.compare(-0.0f, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(-0.0f, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(-1.2f, Float.NaN), -1);
assertEquals(Float.compare(-1.2f, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(-1.2f, Float.MAX_VALUE), -1);
assertEquals(Float.compare(-1.2f, 1.2f), -1);
assertEquals(Float.compare(-1.2f, 0.0f), -1);
assertEquals(Float.compare(-1.2f, -0.0f), -1);
assertEquals(0, Float.compare(-1.2f, -1.2f));
assertEquals(Float.compare(-1.2f, -Float.MAX_VALUE), +1);
assertEquals(Float.compare(-1.2f, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(-Float.MAX_VALUE, Float.NaN), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, Float.MAX_VALUE), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, 1.2f), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, 0.0f), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, -0.0f), -1);
assertEquals(Float.compare(-Float.MAX_VALUE, -1.2f), -1);
assertEquals(0, Float.compare(-Float.MAX_VALUE, -Float.MAX_VALUE));
assertEquals(Float.compare(-Float.MAX_VALUE, Float.NEGATIVE_INFINITY), +1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, Float.NaN), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, Float.MAX_VALUE), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, 1.2f), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, 0.0f), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, -0.0f), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, -1.2f), -1);
assertEquals(Float.compare(Float.NEGATIVE_INFINITY, -Float.MAX_VALUE), -1);
assertEquals(0, Float.compare(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY));
}
@SuppressWarnings("cast") // suppress instanceof warning check
@Test
void testConstants() {
assertInstanceOf(Long.class, NumberUtils.LONG_ZERO);
assertInstanceOf(Long.class, NumberUtils.LONG_ONE);
assertInstanceOf(Long.class, NumberUtils.LONG_MINUS_ONE);
assertInstanceOf(Integer.class, NumberUtils.INTEGER_ZERO);
assertInstanceOf(Integer.class, NumberUtils.INTEGER_ONE);
assertInstanceOf(Integer.class, NumberUtils.INTEGER_MINUS_ONE);
assertInstanceOf(Short.class, NumberUtils.SHORT_ZERO);
assertInstanceOf(Short.class, NumberUtils.SHORT_ONE);
assertInstanceOf(Short.class, NumberUtils.SHORT_MINUS_ONE);
assertInstanceOf(Byte.class, NumberUtils.BYTE_ZERO);
assertInstanceOf(Byte.class, NumberUtils.BYTE_ONE);
assertInstanceOf(Byte.class, NumberUtils.BYTE_MINUS_ONE);
assertInstanceOf(Double.class, NumberUtils.DOUBLE_ZERO);
assertInstanceOf(Double.class, NumberUtils.DOUBLE_ONE);
assertInstanceOf(Double.class, NumberUtils.DOUBLE_MINUS_ONE);
assertInstanceOf(Float.class, NumberUtils.FLOAT_ZERO);
assertInstanceOf(Float.class, NumberUtils.FLOAT_ONE);
assertInstanceOf(Float.class, NumberUtils.FLOAT_MINUS_ONE);
assertEquals(0, NumberUtils.LONG_ZERO.longValue());
assertEquals(1, NumberUtils.LONG_ONE.longValue());
assertEquals(NumberUtils.LONG_MINUS_ONE.longValue(), -1);
assertEquals(0, NumberUtils.INTEGER_ZERO.intValue());
assertEquals(1, NumberUtils.INTEGER_ONE.intValue());
assertEquals(NumberUtils.INTEGER_MINUS_ONE.intValue(), -1);
assertEquals(0, NumberUtils.SHORT_ZERO.shortValue());
assertEquals(1, NumberUtils.SHORT_ONE.shortValue());
assertEquals(NumberUtils.SHORT_MINUS_ONE.shortValue(), -1);
assertEquals(0, NumberUtils.BYTE_ZERO.byteValue());
assertEquals(1, NumberUtils.BYTE_ONE.byteValue());
assertEquals(NumberUtils.BYTE_MINUS_ONE.byteValue(), -1);
assertEquals(0.0d, NumberUtils.DOUBLE_ZERO.doubleValue());
assertEquals(1.0d, NumberUtils.DOUBLE_ONE.doubleValue());
assertEquals(NumberUtils.DOUBLE_MINUS_ONE.doubleValue(), -1.0d);
assertEquals(0.0f, NumberUtils.FLOAT_ZERO.floatValue());
assertEquals(1.0f, NumberUtils.FLOAT_ONE.floatValue());
assertEquals(NumberUtils.FLOAT_MINUS_ONE.floatValue(), -1.0f);
}
@Test
void testConstructor() {
assertNotNull(new NumberUtils());
final Constructor<?>[] cons = NumberUtils.class.getDeclaredConstructors();
assertEquals(1, cons.length);
assertTrue(Modifier.isPublic(cons[0].getModifiers()));
assertTrue(Modifier.isPublic(NumberUtils.class.getModifiers()));
assertFalse(Modifier.isFinal(NumberUtils.class.getModifiers()));
}
@Test
void testCreateBigDecimal() {
assertEquals(new BigDecimal("1234.5"), NumberUtils.createBigDecimal("1234.5"),
"createBigDecimal(String) failed");
assertNull(NumberUtils.createBigDecimal(null), "createBigDecimal(null) failed");
testCreateBigDecimalFailure("");
testCreateBigDecimalFailure(" ");
testCreateBigDecimalFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateBigDecimalFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
// sign alone not valid
testCreateBigDecimalFailure("-");
// comment in NumberUtils suggests some implementations may incorrectly allow this
testCreateBigDecimalFailure("--");
testCreateBigDecimalFailure("--0");
// sign alone not valid
testCreateBigDecimalFailure("+");
// in case this was also allowed by some JVMs
testCreateBigDecimalFailure("++");
testCreateBigDecimalFailure("++0");
}
protected void testCreateBigDecimalFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createBigDecimal(str),
"createBigDecimal(\"" + str + "\") should have failed.");
}
@Test
void testCreateBigInteger() {
assertEquals(new BigInteger("12345"), NumberUtils.createBigInteger("12345"), "createBigInteger(String) failed");
assertNull(NumberUtils.createBigInteger(null), "createBigInteger(null) failed");
testCreateBigIntegerFailure("");
testCreateBigIntegerFailure(" ");
testCreateBigIntegerFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateBigIntegerFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
assertEquals(new BigInteger("255"), NumberUtils.createBigInteger("0xff"), "createBigInteger(String) failed");
assertEquals(new BigInteger("255"), NumberUtils.createBigInteger("0Xff"), "createBigInteger(String) failed");
assertEquals(new BigInteger("255"), NumberUtils.createBigInteger("#ff"), "createBigInteger(String) failed");
assertEquals(new BigInteger("-255"), NumberUtils.createBigInteger("-0xff"), "createBigInteger(String) failed");
assertEquals(new BigInteger("255"), NumberUtils.createBigInteger("0377"), "createBigInteger(String) failed");
assertEquals(new BigInteger("-255"), NumberUtils.createBigInteger("-0377"), "createBigInteger(String) failed");
assertEquals(new BigInteger("-255"), NumberUtils.createBigInteger("-0377"), "createBigInteger(String) failed");
assertEquals(new BigInteger("-0"), NumberUtils.createBigInteger("-0"), "createBigInteger(String) failed");
assertEquals(new BigInteger("0"), NumberUtils.createBigInteger("0"), "createBigInteger(String) failed");
testCreateBigIntegerFailure("#");
testCreateBigIntegerFailure("-#");
testCreateBigIntegerFailure("0x");
testCreateBigIntegerFailure("-0x");
// LANG-1645
assertEquals(new BigInteger("+FFFFFFFFFFFFFFFF", 16), NumberUtils.createBigInteger("+0xFFFFFFFFFFFFFFFF"));
assertEquals(new BigInteger("+FFFFFFFFFFFFFFFF", 16), NumberUtils.createBigInteger("+#FFFFFFFFFFFFFFFF"));
assertEquals(new BigInteger("+1234567", 8), NumberUtils.createBigInteger("+01234567"));
}
protected void testCreateBigIntegerFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createBigInteger(str),
"createBigInteger(\"" + str + "\") should have failed.");
}
@Test
void testCreateDouble() {
assertEquals(Double.valueOf("1234.5"), NumberUtils.createDouble("1234.5"), "createDouble(String) failed");
assertNull(NumberUtils.createDouble(null), "createDouble(null) failed");
testCreateDoubleFailure("");
testCreateDoubleFailure(" ");
testCreateDoubleFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateDoubleFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
}
protected void testCreateDoubleFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createDouble(str),
"createDouble(\"" + str + "\") should have failed.");
}
@Test
void testCreateFloat() {
assertEquals(Float.valueOf("1234.5"), NumberUtils.createFloat("1234.5"), "createFloat(String) failed");
assertNull(NumberUtils.createFloat(null), "createFloat(null) failed");
testCreateFloatFailure("");
testCreateFloatFailure(" ");
testCreateFloatFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateFloatFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
}
protected void testCreateFloatFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createFloat(str),
"createFloat(\"" + str + "\") should have failed.");
}
@Test
void testCreateInteger() {
assertEquals(Integer.valueOf("12345"), NumberUtils.createInteger("12345"), "createInteger(String) failed");
assertNull(NumberUtils.createInteger(null), "createInteger(null) failed");
testCreateIntegerFailure("");
testCreateIntegerFailure(" ");
testCreateIntegerFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateIntegerFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
// LANG-1645
assertEquals(Integer.decode("+0xF"), NumberUtils.createInteger("+0xF"));
}
protected void testCreateIntegerFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createInteger(str),
"createInteger(\"" + str + "\") should have failed.");
}
@Test
void testCreateLong() {
assertEquals(Long.valueOf("12345"), NumberUtils.createLong("12345"), "createLong(String) failed");
assertNull(NumberUtils.createLong(null), "createLong(null) failed");
testCreateLongFailure("");
testCreateLongFailure(" ");
testCreateLongFailure("\b\t\n\f\r");
// Funky whitespaces
testCreateLongFailure("\u00A0\uFEFF\u000B\u000C\u001C\u001D\u001E\u001F");
// LANG-1645
assertEquals(Long.decode("+0xFFFFFFFF"), NumberUtils.createLong("+0xFFFFFFFF"));
}
protected void testCreateLongFailure(final String str) {
assertThrows(NumberFormatException.class, () -> NumberUtils.createLong(str),
"createLong(\"" + str + "\") should have failed.");
}
@Test
void testCreateNumber() {
// a lot of things can go wrong
assertEquals(Float.valueOf("1234.5"), NumberUtils.createNumber("1234.5"), "createNumber(String) 1 failed");
assertEquals(Integer.valueOf("12345"), NumberUtils.createNumber("12345"), "createNumber(String) 2 failed");
assertEquals(Double.valueOf("1234.5"), NumberUtils.createNumber("1234.5D"), "createNumber(String) 3 failed");
assertEquals(Double.valueOf("1234.5"), NumberUtils.createNumber("1234.5d"), "createNumber(String) 3 failed");
assertEquals(Float.valueOf("1234.5"), NumberUtils.createNumber("1234.5F"), "createNumber(String) 4 failed");
assertEquals(Float.valueOf("1234.5"), NumberUtils.createNumber("1234.5f"), "createNumber(String) 4 failed");
assertEquals(Long.valueOf(Integer.MAX_VALUE + 1L), NumberUtils.createNumber("" + (Integer.MAX_VALUE + 1L)),
"createNumber(String) 5 failed");
assertEquals(Long.valueOf(12345), NumberUtils.createNumber("12345L"), "createNumber(String) 6 failed");
assertEquals(Long.valueOf(12345), NumberUtils.createNumber("12345l"), "createNumber(String) 6 failed");
assertEquals(Float.valueOf("-1234.5"), NumberUtils.createNumber("-1234.5"), "createNumber(String) 7 failed");
assertEquals(Integer.valueOf("-12345"), NumberUtils.createNumber("-12345"), "createNumber(String) 8 failed");
assertEquals(0xFADE, NumberUtils.createNumber("0xFADE").intValue(), "createNumber(String) 9a failed");
assertEquals(0xFADE, NumberUtils.createNumber("0Xfade").intValue(), "createNumber(String) 9b failed");
assertEquals(-0xFADE, NumberUtils.createNumber("-0xFADE").intValue(), "createNumber(String) 10a failed");
assertEquals(-0xFADE, NumberUtils.createNumber("-0Xfade").intValue(), "createNumber(String) 10b failed");
assertEquals(Double.valueOf("1.1E200"), NumberUtils.createNumber("1.1E200"), "createNumber(String) 11 failed");
assertEquals(Float.valueOf("1.1E20"), NumberUtils.createNumber("1.1E20"), "createNumber(String) 12 failed");
assertEquals(Double.valueOf("-1.1E200"), NumberUtils.createNumber("-1.1E200"),
"createNumber(String) 13 failed");
assertEquals(Double.valueOf("1.1E-200"), NumberUtils.createNumber("1.1E-200"),
"createNumber(String) 14 failed");
assertNull(NumberUtils.createNumber(null), "createNumber(null) failed");
assertEquals(new BigInteger("12345678901234567890"), NumberUtils.createNumber("12345678901234567890L"),
"createNumber(String) failed");
assertEquals(new BigDecimal("1.1E-700"), NumberUtils.createNumber("1.1E-700F"),
"createNumber(String) 15 failed");
assertEquals(Long.valueOf("10" + Integer.MAX_VALUE), NumberUtils.createNumber("10" + Integer.MAX_VALUE + "L"),
"createNumber(String) 16 failed");
assertEquals(Long.valueOf("10" + Integer.MAX_VALUE), NumberUtils.createNumber("10" + Integer.MAX_VALUE),
"createNumber(String) 17 failed");
assertEquals(new BigInteger("10" + Long.MAX_VALUE), NumberUtils.createNumber("10" + Long.MAX_VALUE),
"createNumber(String) 18 failed");
// LANG-521
assertEquals(Float.valueOf("2."), NumberUtils.createNumber("2."), "createNumber(String) LANG-521 failed");
// LANG-638
assertFalse(checkCreateNumber("1eE"), "createNumber(String) succeeded");
// LANG-693
assertEquals(Double.valueOf(Double.MAX_VALUE), NumberUtils.createNumber("" + Double.MAX_VALUE),
"createNumber(String) LANG-693 failed");
// LANG-822
// ensure that the underlying negative number would create a BigDecimal
final Number bigNum = NumberUtils.createNumber("-1.1E-700F");
assertNotNull(bigNum);
assertEquals(BigDecimal.class, bigNum.getClass());
// LANG-1018
assertEquals(Double.valueOf("-160952.54"), NumberUtils.createNumber("-160952.54"),
"createNumber(String) LANG-1018 failed");
// LANG-1187
assertEquals(Double.valueOf("6264583.33"), NumberUtils.createNumber("6264583.33"),
"createNumber(String) LANG-1187 failed");
// LANG-1215
assertEquals(Double.valueOf("193343.82"), NumberUtils.createNumber("193343.82"),
"createNumber(String) LANG-1215 failed");
// LANG-1060
assertEquals(Double.valueOf("001234.5678"), NumberUtils.createNumber("001234.5678"),
"createNumber(String) LANG-1060a failed");
assertEquals(Double.valueOf("+001234.5678"), NumberUtils.createNumber("+001234.5678"),
"createNumber(String) LANG-1060b failed");
assertEquals(Double.valueOf("-001234.5678"), NumberUtils.createNumber("-001234.5678"),
"createNumber(String) LANG-1060c failed");
assertEquals(Double.valueOf("0000.00000"), NumberUtils.createNumber("0000.00000d"),
"createNumber(String) LANG-1060d failed");
assertEquals(Float.valueOf("001234.56"), NumberUtils.createNumber("001234.56"),
"createNumber(String) LANG-1060e failed");
assertEquals(Float.valueOf("+001234.56"), NumberUtils.createNumber("+001234.56"),
"createNumber(String) LANG-1060f failed");
assertEquals(Float.valueOf("-001234.56"), NumberUtils.createNumber("-001234.56"),
"createNumber(String) LANG-1060g failed");
assertEquals(Float.valueOf("0000.10"), NumberUtils.createNumber("0000.10"),
"createNumber(String) LANG-1060h failed");
assertEquals(Float.valueOf("001.1E20"), NumberUtils.createNumber("001.1E20"),
"createNumber(String) LANG-1060i failed");
assertEquals(Float.valueOf("+001.1E20"), NumberUtils.createNumber("+001.1E20"),
"createNumber(String) LANG-1060j failed");
assertEquals(Float.valueOf("-001.1E20"), NumberUtils.createNumber("-001.1E20"),
"createNumber(String) LANG-1060k failed");
assertEquals(Double.valueOf("001.1E200"), NumberUtils.createNumber("001.1E200"),
"createNumber(String) LANG-1060l failed");
assertEquals(Double.valueOf("+001.1E200"), NumberUtils.createNumber("+001.1E200"),
"createNumber(String) LANG-1060m failed");
assertEquals(Double.valueOf("-001.1E200"), NumberUtils.createNumber("-001.1E200"),
"createNumber(String) LANG-1060n failed");
// LANG-1645
assertEquals(Integer.decode("+0xF"), NumberUtils.createNumber("+0xF"),
"createNumber(String) LANG-1645a failed");
assertEquals(Long.decode("+0xFFFFFFFF"), NumberUtils.createNumber("+0xFFFFFFFF"),
"createNumber(String) LANG-1645b failed");
assertEquals(new BigInteger("+FFFFFFFFFFFFFFFF", 16), NumberUtils.createNumber("+0xFFFFFFFFFFFFFFFF"),
"createNumber(String) LANG-1645c failed");
}
@Test
// Check that the code fails to create a valid number when preceded by -- rather than -
void testCreateNumberFailure_1() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("--1.1E-700F"));
}
@Test
// Check that the code fails to create a valid number when both e and E are present (with decimal)
void testCreateNumberFailure_2() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("-1.1E+0-7e00"));
}
@Test
// Check that the code fails to create a valid number when both e and E are present (no decimal)
void testCreateNumberFailure_3() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("-11E+0-7e00"));
}
@Test
// Check that the code fails to create a valid number when both e and E are present (no decimal)
void testCreateNumberFailure_4() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("1eE+00001"));
}
@Test
// Check that the code fails to create a valid number when there are multiple trailing 'f' characters (LANG-1205)
void testCreateNumberFailure_5() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("1234.5ff"));
}
@Test
// Check that the code fails to create a valid number when there are multiple trailing 'F' characters (LANG-1205)
void testCreateNumberFailure_6() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("1234.5FF"));
}
@Test
// Check that the code fails to create a valid number when there are multiple trailing 'd' characters (LANG-1205)
void testCreateNumberFailure_7() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("1234.5dd"));
}
@Test
// Check that the code fails to create a valid number when there are multiple trailing 'D' characters (LANG-1205)
void testCreateNumberFailure_8() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("1234.5DD"));
}
// Tests to show when magnitude causes switch to next Number type
// Will probably need to be adjusted if code is changed to check precision (LANG-693)
@Test
void testCreateNumberMagnitude() {
// Test Float.MAX_VALUE, and same with +1 in final digit to check conversion changes to next Number type
assertEquals(Float.valueOf(Float.MAX_VALUE), NumberUtils.createNumber("3.4028235e+38"));
assertEquals(Double.valueOf(3.4028236e+38), NumberUtils.createNumber("3.4028236e+38"));
// Test Double.MAX_VALUE
assertEquals(Double.valueOf(Double.MAX_VALUE), NumberUtils.createNumber("1.7976931348623157e+308"));
// Test with +2 in final digit (+1 does not cause roll-over to BigDecimal)
assertEquals(new BigDecimal("1.7976931348623159e+308"), NumberUtils.createNumber("1.7976931348623159e+308"));
// Requested type is parsed as zero but the value is not zero
final Double nonZero1 = Double.valueOf((double) Float.MIN_VALUE / 2);
assertEquals(nonZero1, NumberUtils.createNumber(nonZero1.toString()));
assertEquals(nonZero1, NumberUtils.createNumber(nonZero1 + "F"));
// Smallest double is 4.9e-324.
// Test a number with zero before and/or after the decimal place to hit edge cases.
final BigDecimal nonZero2 = new BigDecimal("4.9e-325");
assertEquals(nonZero2, NumberUtils.createNumber("4.9e-325"));
assertEquals(nonZero2, NumberUtils.createNumber("4.9e-325D"));
final BigDecimal nonZero3 = new BigDecimal("1e-325");
assertEquals(nonZero3, NumberUtils.createNumber("1e-325"));
assertEquals(nonZero3, NumberUtils.createNumber("1e-325D"));
final BigDecimal nonZero4 = new BigDecimal("0.1e-325");
assertEquals(nonZero4, NumberUtils.createNumber("0.1e-325"));
assertEquals(nonZero4, NumberUtils.createNumber("0.1e-325D"));
assertEquals(Integer.valueOf(0x12345678), NumberUtils.createNumber("0x12345678"));
assertEquals(Long.valueOf(0x123456789L), NumberUtils.createNumber("0x123456789"));
assertEquals(Long.valueOf(0x7fffffffffffffffL), NumberUtils.createNumber("0x7fffffffffffffff"));
// Does not appear to be a way to create a literal BigInteger of this magnitude
assertEquals(new BigInteger("7fffffffffffffff0", 16), NumberUtils.createNumber("0x7fffffffffffffff0"));
assertEquals(Long.valueOf(0x7fffffffffffffffL), NumberUtils.createNumber("#7fffffffffffffff"));
assertEquals(new BigInteger("7fffffffffffffff0", 16), NumberUtils.createNumber("#7fffffffffffffff0"));
assertEquals(Integer.valueOf(017777777777), NumberUtils.createNumber("017777777777")); // 31 bits
assertEquals(Long.valueOf(037777777777L), NumberUtils.createNumber("037777777777")); // 32 bits
// 63 bits
assertEquals(Long.valueOf(0777777777777777777777L), NumberUtils.createNumber("0777777777777777777777"));
// 64 bits
assertEquals(new BigInteger("1777777777777777777777", 8), NumberUtils.createNumber("01777777777777777777777"));
}
/**
* LANG-1646: Support the requested Number type (Long, Float, Double) of valid zero input.
*/
@Test
void testCreateNumberZero() {
// Handle integers
assertEquals(Integer.valueOf(0), NumberUtils.createNumber("0"));
assertEquals(Integer.valueOf(0), NumberUtils.createNumber("-0"));
assertEquals(Long.valueOf(0), NumberUtils.createNumber("0L"));
assertEquals(Long.valueOf(0), NumberUtils.createNumber("-0L"));
// Handle floating-point with optional leading sign, trailing exponent (eX)
// and format specifier (F or D).
// This should allow: 0. ; .0 ; 0.0 ; 0 (if exponent or format specifier is present)
// Exponent does not matter for zero
final int[] exponents = {-2345, 0, 13};
final String[] zeros = {"0.", ".0", "0.0", "0"};
final Float f0 = Float.valueOf(0);
final Float fn0 = Float.valueOf(-0F);
final Double d0 = Double.valueOf(0);
final Double dn0 = Double.valueOf(-0D);
for (final String zero : zeros) {
// Assume float if no preference.
// This requires a decimal point if there is no exponent.
if (zero.indexOf('.') != -1) {
assertCreateNumberZero(zero, f0, fn0);
}
for (final int exp : exponents) {
assertCreateNumberZero(zero + "e" + exp, f0, fn0);
}
// Type preference
assertCreateNumberZero(zero + "F", f0, fn0);
assertCreateNumberZero(zero + "D", d0, dn0);
for (final int exp : exponents) {
final String number = zero + "e" + exp;
assertCreateNumberZero(number + "F", f0, fn0);
assertCreateNumberZero(number + "D", d0, dn0);
}
}
}
@Test
void testInvalidNumber() {
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("E123e.3"));
assertThrows(NumberFormatException.class, () -> NumberUtils.createNumber("-"));
}
/**
* Tests isCreatable(String) and tests that createNumber(String) returns a valid number iff isCreatable(String)
* returns false.
*/
@Test
void testIsCreatable() {
compareIsCreatableWithCreateNumber("12345", true);
compareIsCreatableWithCreateNumber("1234.5", true);
compareIsCreatableWithCreateNumber(".12345", true);
compareIsCreatableWithCreateNumber("1234E5", true);
compareIsCreatableWithCreateNumber("1234E+5", true);
compareIsCreatableWithCreateNumber("1234E-5", true);
compareIsCreatableWithCreateNumber("123.4E5", true);
compareIsCreatableWithCreateNumber("-1234", true);
compareIsCreatableWithCreateNumber("-1234.5", true);
compareIsCreatableWithCreateNumber("-.12345", true);
compareIsCreatableWithCreateNumber("-1234E5", true);
compareIsCreatableWithCreateNumber("0", true);
compareIsCreatableWithCreateNumber("0.1", true); // LANG-1216
compareIsCreatableWithCreateNumber("-0", true);
compareIsCreatableWithCreateNumber("01234", true);
compareIsCreatableWithCreateNumber("-01234", true);
compareIsCreatableWithCreateNumber("-0xABC123", true);
compareIsCreatableWithCreateNumber("-0x0", true);
compareIsCreatableWithCreateNumber("123.4E21D", true);
compareIsCreatableWithCreateNumber("-221.23F", true);
compareIsCreatableWithCreateNumber("22338L", true);
compareIsCreatableWithCreateNumber(null, false);
compareIsCreatableWithCreateNumber("", false);
compareIsCreatableWithCreateNumber(" ", false);
compareIsCreatableWithCreateNumber("\r\n\t", false);
compareIsCreatableWithCreateNumber("--2.3", false);
compareIsCreatableWithCreateNumber(".12.3", false);
compareIsCreatableWithCreateNumber("-123E", false);
compareIsCreatableWithCreateNumber("-123E+-212", false);
compareIsCreatableWithCreateNumber("-123E2.12", false);
compareIsCreatableWithCreateNumber("0xGF", false);
compareIsCreatableWithCreateNumber("0xFAE-1", false);
compareIsCreatableWithCreateNumber(".", false);
compareIsCreatableWithCreateNumber("-0ABC123", false);
compareIsCreatableWithCreateNumber("123.4E-D", false);
compareIsCreatableWithCreateNumber("123.4ED", false);
compareIsCreatableWithCreateNumber("1234E5l", false);
compareIsCreatableWithCreateNumber("11a", false);
compareIsCreatableWithCreateNumber("1a", false);
compareIsCreatableWithCreateNumber("a", false);
compareIsCreatableWithCreateNumber("11g", false);
compareIsCreatableWithCreateNumber("11z", false);
compareIsCreatableWithCreateNumber("11def", false);
compareIsCreatableWithCreateNumber("11d11", false);
compareIsCreatableWithCreateNumber("11 11", false);
compareIsCreatableWithCreateNumber(" 1111", false);
compareIsCreatableWithCreateNumber("1111 ", false);
compareIsCreatableWithCreateNumber("2.", true); // LANG-521
compareIsCreatableWithCreateNumber("1.1L", false); // LANG-664
compareIsCreatableWithCreateNumber("+0xF", true); // LANG-1645
compareIsCreatableWithCreateNumber("+0xFFFFFFFF", true); // LANG-1645
compareIsCreatableWithCreateNumber("+0xFFFFFFFFFFFFFFFF", true); // LANG-1645
compareIsCreatableWithCreateNumber(".0", true); // LANG-1646
compareIsCreatableWithCreateNumber("0.", true); // LANG-1646
compareIsCreatableWithCreateNumber("0.D", true); // LANG-1646
compareIsCreatableWithCreateNumber("0e1", true); // LANG-1646
compareIsCreatableWithCreateNumber("0e1D", true); // LANG-1646
compareIsCreatableWithCreateNumber(".D", false); // LANG-1646
compareIsCreatableWithCreateNumber(".e10", false); // LANG-1646
compareIsCreatableWithCreateNumber(".e10D", false); // LANG-1646
}
@Test
void testIsDigits() {
assertFalse(NumberUtils.isDigits(null), "isDigits(null) failed");
assertFalse(NumberUtils.isDigits(""), "isDigits('') failed");
assertTrue(NumberUtils.isDigits("12345"), "isDigits(String) failed");
assertFalse(NumberUtils.isDigits("1234.5"), "isDigits(String) neg 1 failed");
assertFalse(NumberUtils.isDigits("1ab"), "isDigits(String) neg 3 failed");
assertFalse(NumberUtils.isDigits("abc"), "isDigits(String) neg 4 failed");
}
/**
* Tests isCreatable(String) and tests that createNumber(String) returns a valid number iff isCreatable(String)
* returns false.
*/
@Test
void testIsNumber() {
compareIsNumberWithCreateNumber("12345", true);
compareIsNumberWithCreateNumber("1234.5", true);
compareIsNumberWithCreateNumber(".12345", true);
compareIsNumberWithCreateNumber("1234E5", true);
compareIsNumberWithCreateNumber("1234E+5", true);
compareIsNumberWithCreateNumber("1234E-5", true);
compareIsNumberWithCreateNumber("123.4E5", true);
compareIsNumberWithCreateNumber("-1234", true);
compareIsNumberWithCreateNumber("-1234.5", true);
compareIsNumberWithCreateNumber("-.12345", true);
compareIsNumberWithCreateNumber("-0001.12345", true);
compareIsNumberWithCreateNumber("-000.12345", true);
compareIsNumberWithCreateNumber("+00.12345", true);
compareIsNumberWithCreateNumber("+0002.12345", true);
compareIsNumberWithCreateNumber("-1234E5", true);
compareIsNumberWithCreateNumber("0", true);
compareIsNumberWithCreateNumber("-0", true);
compareIsNumberWithCreateNumber("01234", true);
compareIsNumberWithCreateNumber("-01234", true);
compareIsNumberWithCreateNumber("-0xABC123", true);
compareIsNumberWithCreateNumber("-0x0", true);
compareIsNumberWithCreateNumber("123.4E21D", true);
compareIsNumberWithCreateNumber("-221.23F", true);
compareIsNumberWithCreateNumber("22338L", true);
compareIsNumberWithCreateNumber(null, false);
compareIsNumberWithCreateNumber("", false);
compareIsNumberWithCreateNumber(" ", false);
compareIsNumberWithCreateNumber("\r\n\t", false);
compareIsNumberWithCreateNumber("--2.3", false);
compareIsNumberWithCreateNumber(".12.3", false);
compareIsNumberWithCreateNumber("-123E", false);
compareIsNumberWithCreateNumber("-123E+-212", false);
compareIsNumberWithCreateNumber("-123E2.12", false);
compareIsNumberWithCreateNumber("0xGF", false);
compareIsNumberWithCreateNumber("0xFAE-1", false);
compareIsNumberWithCreateNumber(".", false);
compareIsNumberWithCreateNumber("-0ABC123", false);
compareIsNumberWithCreateNumber("123.4E-D", false);
compareIsNumberWithCreateNumber("123.4ED", false);
compareIsNumberWithCreateNumber("+000E.12345", false);
compareIsNumberWithCreateNumber("-000E.12345", false);
compareIsNumberWithCreateNumber("1234E5l", false);
compareIsNumberWithCreateNumber("11a", false);
compareIsNumberWithCreateNumber("1a", false);
compareIsNumberWithCreateNumber("a", false);
compareIsNumberWithCreateNumber("11g", false);
compareIsNumberWithCreateNumber("11z", false);
compareIsNumberWithCreateNumber("11def", false);
compareIsNumberWithCreateNumber("11d11", false);
compareIsNumberWithCreateNumber("11 11", false);
compareIsNumberWithCreateNumber(" 1111", false);
compareIsNumberWithCreateNumber("1111 ", false);
compareIsNumberWithCreateNumber("2.", true); // LANG-521
compareIsNumberWithCreateNumber("1.1L", false); // LANG-664
compareIsNumberWithCreateNumber("+0xF", true); // LANG-1645
compareIsNumberWithCreateNumber("+0xFFFFFFFF", true); // LANG-1645
compareIsNumberWithCreateNumber("+0xFFFFFFFFFFFFFFFF", true); // LANG-1645
compareIsNumberWithCreateNumber(".0", true); // LANG-1646
compareIsNumberWithCreateNumber("0.", true); // LANG-1646
compareIsNumberWithCreateNumber("0.D", true); // LANG-1646
compareIsNumberWithCreateNumber("0e1", true); // LANG-1646
compareIsNumberWithCreateNumber("0e1D", true); // LANG-1646
compareIsNumberWithCreateNumber(".D", false); // LANG-1646
compareIsNumberWithCreateNumber(".e10", false); // LANG-1646
compareIsNumberWithCreateNumber(".e10D", false); // LANG-1646
}
@Test
void testIsNumberLANG1252() {
compareIsNumberWithCreateNumber("+2", true);
compareIsNumberWithCreateNumber("+2.0", true);
}
@Test
void testIsNumberLANG1385() {
compareIsNumberWithCreateNumber("L", false);
}
@Test
void testIsNumberLANG971() {
compareIsNumberWithCreateNumber("0085", false);
compareIsNumberWithCreateNumber("085", false);
compareIsNumberWithCreateNumber("08", false);
compareIsNumberWithCreateNumber("07", true);
compareIsNumberWithCreateNumber("00", true);
}
@Test
void testIsNumberLANG972() {
compareIsNumberWithCreateNumber("0xABCD", true);
compareIsNumberWithCreateNumber("0XABCD", true);
}