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17 package org.apache.commons.lang3;
18
19 import static org.apache.commons.lang3.LangAssertions.assertIllegalArgumentException;
20 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
21 import static org.junit.jupiter.api.Assertions.assertEquals;
22 import static org.junit.jupiter.api.Assertions.assertFalse;
23 import static org.junit.jupiter.api.Assertions.assertNotNull;
24 import static org.junit.jupiter.api.Assertions.assertNotSame;
25 import static org.junit.jupiter.api.Assertions.assertNull;
26 import static org.junit.jupiter.api.Assertions.assertSame;
27 import static org.junit.jupiter.api.Assertions.assertThrows;
28 import static org.junit.jupiter.api.Assertions.assertTrue;
29
30 import java.io.Serializable;
31 import java.lang.reflect.Constructor;
32 import java.lang.reflect.Method;
33 import java.lang.reflect.Modifier;
34 import java.util.ArrayList;
35 import java.util.Collections;
36 import java.util.HashSet;
37 import java.util.Iterator;
38 import java.util.List;
39 import java.util.Map;
40 import java.util.Set;
41 import java.util.TreeMap;
42 import java.util.function.Function;
43
44 import org.apache.commons.lang3.ClassUtils.Interfaces;
45 import org.apache.commons.lang3.reflect.testbed.GenericConsumer;
46 import org.apache.commons.lang3.reflect.testbed.GenericParent;
47 import org.apache.commons.lang3.reflect.testbed.StringParameterizedChild;
48 import org.junit.jupiter.api.Assertions;
49 import org.junit.jupiter.api.DisplayName;
50 import org.junit.jupiter.api.Test;
51
52
53
54
55 @SuppressWarnings("boxing")
56 class ClassUtilsTest extends AbstractLangTest {
57
58 private static class CX implements IB, IA, IE {
59
60 }
61
62 @SuppressWarnings("unused")
63 private static final class CY extends CX implements IB, IC {
64
65 }
66
67 private interface IA {
68
69 }
70
71 private interface IB {
72
73 }
74
75 private interface IC extends ID, IE {
76
77 }
78
79 private interface ID {
80
81 }
82
83 private interface IE extends IF {
84
85 }
86
87 private interface IF {
88
89 }
90
91 private static final class Inner {
92 private static final class DeeplyNested {
93
94 }
95 }
96
97 private static final String OBJECT_CANONICAL_NAME = "java.lang.Object";
98
99 private void assertGetClassReturnsClass(final Class<?> c) throws Exception {
100 assertEquals(c, ClassUtils.getClass(c.getName()));
101 }
102
103 private void assertGetClassThrowsClassNotFound(final String className) {
104 assertGetClassThrowsException(className, ClassNotFoundException.class);
105 }
106
107 private void assertGetClassThrowsException(final String className, final Class<? extends Exception> exceptionType) {
108 assertThrows(exceptionType, () -> ClassUtils.getClass(className),
109 "ClassUtils.getClass() should fail with an exception of type " + exceptionType.getName() + " when given class name \"" + className + "\".");
110 }
111
112 private void assertGetClassThrowsNullPointerException(final String className) {
113 assertGetClassThrowsException(className, NullPointerException.class);
114 }
115
116 @Test
117 void test_convertClassesToClassNames_List() {
118 final List<Class<?>> list = new ArrayList<>();
119 List<String> result = ClassUtils.convertClassesToClassNames(list);
120 assertEquals(0, result.size());
121
122 list.add(String.class);
123 list.add(null);
124 list.add(Object.class);
125 result = ClassUtils.convertClassesToClassNames(list);
126 assertEquals(3, result.size());
127 assertEquals("java.lang.String", result.get(0));
128 assertNull(result.get(1));
129 assertEquals(OBJECT_CANONICAL_NAME, result.get(2));
130
131 @SuppressWarnings("unchecked")
132 final List<Object> olist = (List<Object>) (List<?>) list;
133 olist.add(new Object());
134 assertThrows(ClassCastException.class, () -> ClassUtils.convertClassesToClassNames(list), "Should not have been able to convert list");
135 assertNull(ClassUtils.convertClassesToClassNames(null));
136 }
137
138 @Test
139 void test_convertClassNamesToClasses_List() {
140 final List<String> list = new ArrayList<>();
141 List<Class<?>> result = ClassUtils.convertClassNamesToClasses(list);
142 assertEquals(0, result.size());
143
144 list.add("java.lang.String");
145 list.add("java.lang.xxx");
146 list.add(OBJECT_CANONICAL_NAME);
147 result = ClassUtils.convertClassNamesToClasses(list);
148 assertEquals(3, result.size());
149 assertEquals(String.class, result.get(0));
150 assertNull(result.get(1));
151 assertEquals(Object.class, result.get(2));
152
153 @SuppressWarnings("unchecked")
154 final List<Object> olist = (List<Object>) (List<?>) list;
155 olist.add(new Object());
156 assertThrows(ClassCastException.class, () -> ClassUtils.convertClassNamesToClasses(list), "Should not have been able to convert list");
157 assertNull(ClassUtils.convertClassNamesToClasses(null));
158 }
159
160 @Test
161 void test_getAbbreviatedName_Class() {
162 assertEquals("", ClassUtils.getAbbreviatedName((Class<?>) null, 1));
163 assertEquals("j.l.String", ClassUtils.getAbbreviatedName(String.class, 1));
164 assertEquals("j.l.String", ClassUtils.getAbbreviatedName(String.class, 5));
165 assertEquals("o.a.c.l.ClassUtils", ClassUtils.getAbbreviatedName(ClassUtils.class, 18));
166 assertEquals("j.lang.String", ClassUtils.getAbbreviatedName(String.class, 13));
167 assertEquals("j.lang.String", ClassUtils.getAbbreviatedName(String.class, 15));
168 assertEquals("java.lang.String", ClassUtils.getAbbreviatedName(String.class, 20));
169 }
170
171 @Test
172 @DisplayName("When the desired length is negative then exception is thrown")
173 void test_getAbbreviatedName_Class_NegativeLen() {
174 assertIllegalArgumentException(() -> ClassUtils.getAbbreviatedName(String.class, -10));
175 }
176
177 @Test
178 @DisplayName("When the desired length is zero then exception is thrown")
179 void test_getAbbreviatedName_Class_ZeroLen() {
180 assertIllegalArgumentException(() -> ClassUtils.getAbbreviatedName(String.class, 0));
181 }
182
183 @Test
184 void test_getAbbreviatedName_String() {
185 assertEquals("", ClassUtils.getAbbreviatedName((String) null, 1));
186 assertEquals("", ClassUtils.getAbbreviatedName("", 1));
187 assertEquals("WithoutPackage", ClassUtils.getAbbreviatedName("WithoutPackage", 1));
188 assertEquals("j.l.String", ClassUtils.getAbbreviatedName("java.lang.String", 1));
189 assertEquals("o.a.c.l.ClassUtils", ClassUtils.getAbbreviatedName("org.apache.commons.lang3.ClassUtils", 18));
190 assertEquals("org.apache.commons.lang3.ClassUtils",
191 ClassUtils.getAbbreviatedName("org.apache.commons.lang3.ClassUtils", "org.apache.commons.lang3.ClassUtils".length()));
192 assertEquals("o.a.c.l.ClassUtils", ClassUtils.getAbbreviatedName("o.a.c.l.ClassUtils", 18));
193 assertEquals("o..c.l.ClassUtils", ClassUtils.getAbbreviatedName("o..c.l.ClassUtils", 18));
194 assertEquals(".", ClassUtils.getAbbreviatedName(".", 18));
195 assertEquals(".", ClassUtils.getAbbreviatedName(".", 1));
196 assertEquals("..", ClassUtils.getAbbreviatedName("..", 1));
197 assertEquals("...", ClassUtils.getAbbreviatedName("...", 2));
198 assertEquals("...", ClassUtils.getAbbreviatedName("...", 3));
199 assertEquals("java.lang.String", ClassUtils.getAbbreviatedName("java.lang.String", Integer.MAX_VALUE));
200 assertEquals("j.lang.String", ClassUtils.getAbbreviatedName("java.lang.String", "j.lang.String".length()));
201 assertEquals("j.l.String", ClassUtils.getAbbreviatedName("java.lang.String", "j.lang.String".length() - 1));
202 assertEquals("j.l.String", ClassUtils.getAbbreviatedName("java.lang.String", "j.l.String".length()));
203 assertEquals("j.l.String", ClassUtils.getAbbreviatedName("java.lang.String", "j.l.String".length() - 1));
204 }
205
206
207
208
209
210
211 @Test
212 @DisplayName("When the length hint is longer than the actual length then the same String object is returned")
213 void test_getAbbreviatedName_TooLongHint() {
214 final String className = "java.lang.String";
215 Assertions.assertSame(className, ClassUtils.getAbbreviatedName(className, className.length() + 1));
216 Assertions.assertSame(className, ClassUtils.getAbbreviatedName(className, className.length()));
217 }
218
219 @Test
220 void test_getAllInterfaces_Class() {
221 final List<?> list = ClassUtils.getAllInterfaces(CY.class);
222 assertEquals(6, list.size());
223 assertEquals(IB.class, list.get(0));
224 assertEquals(IC.class, list.get(1));
225 assertEquals(ID.class, list.get(2));
226 assertEquals(IE.class, list.get(3));
227 assertEquals(IF.class, list.get(4));
228 assertEquals(IA.class, list.get(5));
229
230 assertNull(ClassUtils.getAllInterfaces(null));
231 }
232
233 @Test
234 void test_getAllSuperclasses_Class() {
235 final List<?> list = ClassUtils.getAllSuperclasses(CY.class);
236 assertEquals(2, list.size());
237 assertEquals(CX.class, list.get(0));
238 assertEquals(Object.class, list.get(1));
239
240 assertNull(ClassUtils.getAllSuperclasses(null));
241 }
242
243 @Test
244 void test_getCanonicalName_Class() {
245 assertEquals("org.apache.commons.lang3.ClassUtils", ClassUtils.getCanonicalName(ClassUtils.class));
246 assertEquals("java.util.Map.Entry", ClassUtils.getCanonicalName(Map.Entry.class));
247 assertEquals("", ClassUtils.getCanonicalName((Class<?>) null));
248
249 assertEquals("java.lang.String[]", ClassUtils.getCanonicalName(String[].class));
250 assertEquals("java.util.Map.Entry[]", ClassUtils.getCanonicalName(Map.Entry[].class));
251
252
253 assertEquals("boolean", ClassUtils.getCanonicalName(boolean.class));
254 assertEquals("byte", ClassUtils.getCanonicalName(byte.class));
255 assertEquals("char", ClassUtils.getCanonicalName(char.class));
256 assertEquals("short", ClassUtils.getCanonicalName(short.class));
257 assertEquals("int", ClassUtils.getCanonicalName(int.class));
258 assertEquals("long", ClassUtils.getCanonicalName(long.class));
259 assertEquals("float", ClassUtils.getCanonicalName(float.class));
260 assertEquals("double", ClassUtils.getCanonicalName(double.class));
261
262
263 assertEquals("boolean[]", ClassUtils.getCanonicalName(boolean[].class));
264 assertEquals("byte[]", ClassUtils.getCanonicalName(byte[].class));
265 assertEquals("char[]", ClassUtils.getCanonicalName(char[].class));
266 assertEquals("short[]", ClassUtils.getCanonicalName(short[].class));
267 assertEquals("int[]", ClassUtils.getCanonicalName(int[].class));
268 assertEquals("long[]", ClassUtils.getCanonicalName(long[].class));
269 assertEquals("float[]", ClassUtils.getCanonicalName(float[].class));
270 assertEquals("double[]", ClassUtils.getCanonicalName(double[].class));
271
272
273 assertEquals("java.lang.String[][]", ClassUtils.getCanonicalName(String[][].class));
274 assertEquals("java.lang.String[][][]", ClassUtils.getCanonicalName(String[][][].class));
275 assertEquals("java.lang.String[][][][]", ClassUtils.getCanonicalName(String[][][][].class));
276
277
278 final class Named {
279
280 }
281 assertEquals(StringUtils.EMPTY, ClassUtils.getCanonicalName(new Object() {
282
283 }.getClass()));
284 assertEquals(StringUtils.EMPTY, ClassUtils.getCanonicalName(Named.class));
285 assertEquals("org.apache.commons.lang3.ClassUtilsTest.Inner", ClassUtils.getCanonicalName(Inner.class));
286 }
287
288 @Test
289 void test_getCanonicalName_Class_String() {
290 assertEquals("org.apache.commons.lang3.ClassUtils", ClassUtils.getCanonicalName(ClassUtils.class, "X"));
291 assertEquals("java.util.Map.Entry", ClassUtils.getCanonicalName(Map.Entry.class, "X"));
292 assertEquals("X", ClassUtils.getCanonicalName((Class<?>) null, "X"));
293
294 assertEquals("java.lang.String[]", ClassUtils.getCanonicalName(String[].class, "X"));
295 assertEquals("java.util.Map.Entry[]", ClassUtils.getCanonicalName(Map.Entry[].class, "X"));
296
297
298 assertEquals("boolean", ClassUtils.getCanonicalName(boolean.class, "X"));
299 assertEquals("byte", ClassUtils.getCanonicalName(byte.class, "X"));
300 assertEquals("char", ClassUtils.getCanonicalName(char.class, "X"));
301 assertEquals("short", ClassUtils.getCanonicalName(short.class, "X"));
302 assertEquals("int", ClassUtils.getCanonicalName(int.class, "X"));
303 assertEquals("long", ClassUtils.getCanonicalName(long.class, "X"));
304 assertEquals("float", ClassUtils.getCanonicalName(float.class, "X"));
305 assertEquals("double", ClassUtils.getCanonicalName(double.class, "X"));
306
307
308 assertEquals("boolean[]", ClassUtils.getCanonicalName(boolean[].class, "X"));
309 assertEquals("byte[]", ClassUtils.getCanonicalName(byte[].class, "X"));
310 assertEquals("char[]", ClassUtils.getCanonicalName(char[].class, "X"));
311 assertEquals("short[]", ClassUtils.getCanonicalName(short[].class, "X"));
312 assertEquals("int[]", ClassUtils.getCanonicalName(int[].class, "X"));
313 assertEquals("long[]", ClassUtils.getCanonicalName(long[].class, "X"));
314 assertEquals("float[]", ClassUtils.getCanonicalName(float[].class, "X"));
315 assertEquals("double[]", ClassUtils.getCanonicalName(double[].class, "X"));
316
317
318 assertEquals("java.lang.String[][]", ClassUtils.getCanonicalName(String[][].class, "X"));
319 assertEquals("java.lang.String[][][]", ClassUtils.getCanonicalName(String[][][].class, "X"));
320 assertEquals("java.lang.String[][][][]", ClassUtils.getCanonicalName(String[][][][].class, "X"));
321
322
323 final class Named {
324
325 }
326 assertEquals("X", ClassUtils.getCanonicalName(new Object() {
327
328 }.getClass(), "X"));
329 assertEquals("X", ClassUtils.getCanonicalName(Named.class, "X"));
330 assertEquals("org.apache.commons.lang3.ClassUtilsTest.Inner", ClassUtils.getCanonicalName(Inner.class, "X"));
331 assertEquals("X", ClassUtils.getCanonicalName((Object) null, "X"));
332 assertEquals(OBJECT_CANONICAL_NAME, ClassUtils.getCanonicalName(new Object()));
333 }
334
335 @Test
336 void test_getClass() {
337
338 }
339
340 @Test
341 void test_getName_Class() {
342 assertEquals("org.apache.commons.lang3.ClassUtils", ClassUtils.getName(ClassUtils.class));
343 assertEquals("java.util.Map$Entry", ClassUtils.getName(Map.Entry.class));
344 assertEquals("", ClassUtils.getName((Class<?>) null));
345
346 assertEquals("[Ljava.lang.String;", ClassUtils.getName(String[].class));
347 assertEquals("[Ljava.util.Map$Entry;", ClassUtils.getName(Map.Entry[].class));
348
349
350 assertEquals("boolean", ClassUtils.getName(boolean.class));
351 assertEquals("byte", ClassUtils.getName(byte.class));
352 assertEquals("char", ClassUtils.getName(char.class));
353 assertEquals("short", ClassUtils.getName(short.class));
354 assertEquals("int", ClassUtils.getName(int.class));
355 assertEquals("long", ClassUtils.getName(long.class));
356 assertEquals("float", ClassUtils.getName(float.class));
357 assertEquals("double", ClassUtils.getName(double.class));
358
359
360 assertEquals("[Z", ClassUtils.getName(boolean[].class));
361 assertEquals("[B", ClassUtils.getName(byte[].class));
362 assertEquals("[C", ClassUtils.getName(char[].class));
363 assertEquals("[S", ClassUtils.getName(short[].class));
364 assertEquals("[I", ClassUtils.getName(int[].class));
365 assertEquals("[J", ClassUtils.getName(long[].class));
366 assertEquals("[F", ClassUtils.getName(float[].class));
367 assertEquals("[D", ClassUtils.getName(double[].class));
368
369
370 assertEquals("[[Ljava.lang.String;", ClassUtils.getName(String[][].class));
371 assertEquals("[[[Ljava.lang.String;", ClassUtils.getName(String[][][].class));
372 assertEquals("[[[[Ljava.lang.String;", ClassUtils.getName(String[][][][].class));
373
374
375 final class Named {
376
377 }
378 assertEquals("org.apache.commons.lang3.ClassUtilsTest$3", ClassUtils.getName(new Object() {
379
380 }.getClass()));
381 assertEquals("org.apache.commons.lang3.ClassUtilsTest$3Named", ClassUtils.getName(Named.class));
382 assertEquals("org.apache.commons.lang3.ClassUtilsTest$Inner", ClassUtils.getName(Inner.class));
383 assertEquals(OBJECT_CANONICAL_NAME, ClassUtils.getName(new Object()));
384 }
385
386 @Test
387 void test_getName_Object() {
388 assertEquals("org.apache.commons.lang3.ClassUtils", ClassUtils.getName(new ClassUtils(), "<null>"));
389 assertEquals("org.apache.commons.lang3.ClassUtilsTest$Inner", ClassUtils.getName(new Inner(), "<null>"));
390 assertEquals("java.lang.String", ClassUtils.getName("hello", "<null>"));
391 assertEquals("<null>", ClassUtils.getName(null, "<null>"));
392
393
394 final class Named {
395
396 }
397 assertEquals("org.apache.commons.lang3.ClassUtilsTest$4", ClassUtils.getName(new Object() {
398
399 }, "<null>"));
400 assertEquals("org.apache.commons.lang3.ClassUtilsTest$4Named", ClassUtils.getName(new Named(), "<null>"));
401 assertEquals("org.apache.commons.lang3.ClassUtilsTest$Inner", ClassUtils.getName(new Inner(), "<null>"));
402 }
403
404 @Test
405 void test_getPackageCanonicalName_Class() {
406 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils.class));
407 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils[].class));
408 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils[][].class));
409 assertEquals("", ClassUtils.getPackageCanonicalName(int[].class));
410 assertEquals("", ClassUtils.getPackageCanonicalName(int[][].class));
411
412
413 final class Named {
414
415 }
416 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Object() {
417
418 }.getClass()));
419 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(Named.class));
420 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(Inner.class));
421 assertEquals(StringUtils.EMPTY, ClassUtils.getPackageCanonicalName((Class<?>) null));
422 }
423
424 @Test
425 void test_getPackageCanonicalName_Object() {
426 assertEquals("<null>", ClassUtils.getPackageCanonicalName(null, "<null>"));
427 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils(), "<null>"));
428 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils[0], "<null>"));
429 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils[0][0], "<null>"));
430 assertEquals("", ClassUtils.getPackageCanonicalName(new int[0], "<null>"));
431 assertEquals("", ClassUtils.getPackageCanonicalName(new int[0][0], "<null>"));
432
433
434 final class Named {
435
436 }
437 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Object() {
438
439 }, "<null>"));
440 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Named(), "<null>"));
441 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Inner(), "<null>"));
442 }
443
444 @Test
445 void test_getPackageCanonicalName_String() {
446 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils"));
447 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("[Lorg.apache.commons.lang3.ClassUtils;"));
448 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("[[Lorg.apache.commons.lang3.ClassUtils;"));
449 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[Lorg.apache.commons.lang3.ClassUtils;"));
450 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils[]"));
451 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils[][]"));
452 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils[][][][][][][][][][][][][][][][]"));
453 assertEquals("", ClassUtils.getPackageCanonicalName("[I"));
454 assertEquals("", ClassUtils.getPackageCanonicalName("[[I"));
455 assertEquals("", ClassUtils.getPackageCanonicalName("int[]"));
456 assertEquals("", ClassUtils.getPackageCanonicalName("int[][]"));
457
458 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$6"));
459 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$5Named"));
460 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$Inner"));
461 assertEquals("a.b.c.D.e.f", ClassUtils.getPackageCanonicalName("a.b.c.D.e.f.D"));
462 }
463
464 @Test
465 void test_getPackageName_Class() {
466 assertEquals("java.lang", ClassUtils.getPackageName(String.class));
467 assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class));
468 assertEquals("", ClassUtils.getPackageName((Class<?>) null));
469
470 assertEquals("java.lang", ClassUtils.getPackageName(String[].class));
471
472 assertEquals("", ClassUtils.getPackageName(boolean[].class));
473 assertEquals("", ClassUtils.getPackageName(byte[].class));
474 assertEquals("", ClassUtils.getPackageName(char[].class));
475 assertEquals("", ClassUtils.getPackageName(short[].class));
476 assertEquals("", ClassUtils.getPackageName(int[].class));
477 assertEquals("", ClassUtils.getPackageName(long[].class));
478 assertEquals("", ClassUtils.getPackageName(float[].class));
479 assertEquals("", ClassUtils.getPackageName(double[].class));
480
481 assertEquals("java.lang", ClassUtils.getPackageName(String[][].class));
482 assertEquals("java.lang", ClassUtils.getPackageName(String[][][].class));
483 assertEquals("java.lang", ClassUtils.getPackageName(String[][][][].class));
484
485 final class Named {
486
487 }
488 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new Object() {
489
490 }.getClass()));
491 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(Named.class));
492 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new Serializable() {
493 private static final long serialVersionUID = 1L;
494 }.getClass()));
495 assertEquals("java.util.function", ClassUtils.getPackageName(Function.identity().getClass()));
496 }
497
498 @Test
499 void test_getPackageName_Object() {
500 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new ClassUtils(), "<null>"));
501 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new Inner(), "<null>"));
502 assertEquals("<null>", ClassUtils.getPackageName(null, "<null>"));
503 }
504
505 @Test
506 void test_getPackageName_String() {
507 assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(ClassUtils.class.getName()));
508 assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class.getName()));
509 assertEquals("", ClassUtils.getPackageName((String) null));
510 assertEquals("", ClassUtils.getPackageName(""));
511 }
512
513 @Test
514 void test_getShortCanonicalName_Class() {
515 assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(ClassUtils.class));
516 assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(ClassUtils[].class));
517 assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(ClassUtils[][].class));
518 assertEquals("int[]", ClassUtils.getShortCanonicalName(int[].class));
519 assertEquals("int[][]", ClassUtils.getShortCanonicalName(int[][].class));
520 assertEquals("int[][][][][][][][][][]", ClassUtils.getShortCanonicalName(int[][][][][][][][][][].class));
521
522
523 final class Named {
524
525 }
526 assertEquals("", ClassUtils.getShortCanonicalName(new Object() {
527
528 }.getClass()));
529
530 assertEquals("", ClassUtils.getShortCanonicalName(Named.class));
531 assertEquals("Inner", ClassUtils.getShortCanonicalName(Inner.class));
532 assertEquals(StringUtils.EMPTY, ClassUtils.getShortCanonicalName((Class<?>) null));
533 }
534
535 @Test
536 void test_getShortCanonicalName_Object() {
537 assertEquals("<null>", ClassUtils.getShortCanonicalName(null, "<null>"));
538 assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(new ClassUtils(), "<null>"));
539 assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(new ClassUtils[0], "<null>"));
540 assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(new ClassUtils[0][0], "<null>"));
541 assertEquals("int[]", ClassUtils.getShortCanonicalName(new int[0], "<null>"));
542 assertEquals("int[][]", ClassUtils.getShortCanonicalName(new int[0][0], "<null>"));
543 assertEquals("int[][][][][][][][][][]", ClassUtils.getShortCanonicalName(new int[0][0][0][0][0][0][0][0][0][0], "<null>"));
544
545
546 final class Named {
547
548 }
549 assertEquals("", ClassUtils.getShortCanonicalName(new Object() {
550
551 }, "<null>"));
552 assertEquals("", ClassUtils.getShortCanonicalName(new Named(), "<null>"));
553 assertEquals("Inner", ClassUtils.getShortCanonicalName(new Inner(), "<null>"));
554 }
555
556 @Test
557 void test_getShortCanonicalName_String() {
558 assertEquals("", ClassUtils.getShortCanonicalName((String) null));
559 assertEquals("Map.Entry", ClassUtils.getShortCanonicalName(java.util.Map.Entry.class.getName()));
560 assertEquals("Entry", ClassUtils.getShortCanonicalName(java.util.Map.Entry.class.getCanonicalName()));
561 assertEquals("ClassUtils", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils"));
562 assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("[Lorg.apache.commons.lang3.ClassUtils;"));
563 assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("[[Lorg.apache.commons.lang3.ClassUtils;"));
564 assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils[]"));
565 assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils[][]"));
566 assertEquals("int[]", ClassUtils.getShortCanonicalName("[I"));
567 assertEquals("int[]", ClassUtils.getShortCanonicalName(int[].class.getCanonicalName()));
568 assertEquals("int[]", ClassUtils.getShortCanonicalName(int[].class.getName()));
569 assertEquals("int[][]", ClassUtils.getShortCanonicalName("[[I"));
570 assertEquals("int[]", ClassUtils.getShortCanonicalName("int[]"));
571 assertEquals("int[][]", ClassUtils.getShortCanonicalName("int[][]"));
572 assertEquals("int[][][][][][][][][][][][]", ClassUtils.getShortCanonicalName("int[][][][][][][][][][][][]"));
573
574
575
576 assertEquals("int[]", int[].class.getCanonicalName());
577 assertEquals("[I", int[].class.getName());
578 assertIllegalArgumentException(() -> ClassUtils.getShortCanonicalName(StringUtils.repeat("[", 256) + "I"));
579 assertEquals("int" + StringUtils.repeat("[]", 255), ClassUtils.getShortCanonicalName(StringUtils.repeat("[", 255) + "I"));
580
581
582
583 assertEquals("ClassUtilsTest.6", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$6"));
584
585 assertEquals("ClassUtilsTest.5Named", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$5Named"));
586 assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$Inner"));
587
588 assertEquals("org.apache.commons.lang3.ClassUtilsTest$11", new org.apache.commons.lang3.ClassUtilsTest() {
589 }.getClass().getName());
590 assertNull(new org.apache.commons.lang3.ClassUtilsTest() {
591 }.getClass().getCanonicalName());
592 assertEquals("String[]", ClassUtils.getShortCanonicalName(String[].class.getName()));
593 assertEquals("String[]", ClassUtils.getShortCanonicalName(String[].class.getCanonicalName()));
594 assertEquals("String[]", ClassUtils.getShortCanonicalName("String[]"));
595
596 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName(""));
597 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("["));
598 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[]"));
599 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[;"));
600 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[];"));
601 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName(" "));
602 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[$"));
603 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[$a"));
604 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[["));
605 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[[L"));
606 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[org.apache.commons.lang3.ClassUtilsTest"));
607 assertThrows(IllegalArgumentException.class, () -> ClassUtils.getShortCanonicalName("[Lorg.apache.commons.lang3.ClassUtilsTest"));
608 }
609
610 @Test
611 void test_getShortClassName_Class() {
612 assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class));
613 assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class));
614 assertEquals("", ClassUtils.getShortClassName((Class<?>) null));
615
616
617 assertEquals("String[]", ClassUtils.getShortClassName(String[].class));
618 assertEquals("Map.Entry[]", ClassUtils.getShortClassName(Map.Entry[].class));
619
620
621 assertEquals("boolean", ClassUtils.getShortClassName(boolean.class));
622 assertEquals("byte", ClassUtils.getShortClassName(byte.class));
623 assertEquals("char", ClassUtils.getShortClassName(char.class));
624 assertEquals("short", ClassUtils.getShortClassName(short.class));
625 assertEquals("int", ClassUtils.getShortClassName(int.class));
626 assertEquals("long", ClassUtils.getShortClassName(long.class));
627 assertEquals("float", ClassUtils.getShortClassName(float.class));
628 assertEquals("double", ClassUtils.getShortClassName(double.class));
629
630
631 assertEquals("boolean[]", ClassUtils.getShortClassName(boolean[].class));
632 assertEquals("byte[]", ClassUtils.getShortClassName(byte[].class));
633 assertEquals("char[]", ClassUtils.getShortClassName(char[].class));
634 assertEquals("short[]", ClassUtils.getShortClassName(short[].class));
635 assertEquals("int[]", ClassUtils.getShortClassName(int[].class));
636 assertEquals("long[]", ClassUtils.getShortClassName(long[].class));
637 assertEquals("float[]", ClassUtils.getShortClassName(float[].class));
638 assertEquals("double[]", ClassUtils.getShortClassName(double[].class));
639
640
641 assertEquals("String[][]", ClassUtils.getShortClassName(String[][].class));
642 assertEquals("String[][][]", ClassUtils.getShortClassName(String[][][].class));
643 assertEquals("String[][][][]", ClassUtils.getShortClassName(String[][][][].class));
644
645
646 final class Named {
647
648 }
649
650 assertEquals("ClassUtilsTest.13", ClassUtils.getShortClassName(new Object() {
651
652 }.getClass()));
653
654 assertEquals("ClassUtilsTest.10Named", ClassUtils.getShortClassName(Named.class));
655 assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(Inner.class));
656 }
657
658 @Test
659 void test_getShortClassName_Object() {
660 assertEquals("ClassUtils", ClassUtils.getShortClassName(new ClassUtils(), "<null>"));
661 assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(new Inner(), "<null>"));
662 assertEquals("String", ClassUtils.getShortClassName("hello", "<null>"));
663 assertEquals("<null>", ClassUtils.getShortClassName(null, "<null>"));
664
665
666 final class Named {
667
668 }
669
670 assertEquals("ClassUtilsTest.14", ClassUtils.getShortClassName(new Object() {
671
672 }, "<null>"));
673
674 assertEquals("ClassUtilsTest.11Named", ClassUtils.getShortClassName(new Named(), "<null>"));
675 assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(new Inner(), "<null>"));
676 }
677
678 @Test
679 void test_getShortClassName_String() {
680 assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class.getName()));
681 assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class.getName()));
682 assertEquals("", ClassUtils.getShortClassName((String) null));
683 assertEquals("", ClassUtils.getShortClassName(""));
684 }
685
686 @Test
687 void test_getSimpleName_Class() {
688 assertEquals("ClassUtils", ClassUtils.getSimpleName(ClassUtils.class));
689 assertEquals("Entry", ClassUtils.getSimpleName(Map.Entry.class));
690 assertEquals("", ClassUtils.getSimpleName(null));
691
692
693 assertEquals("String[]", ClassUtils.getSimpleName(String[].class));
694 assertEquals("Entry[]", ClassUtils.getSimpleName(Map.Entry[].class));
695
696
697 assertEquals("boolean", ClassUtils.getSimpleName(boolean.class));
698 assertEquals("byte", ClassUtils.getSimpleName(byte.class));
699 assertEquals("char", ClassUtils.getSimpleName(char.class));
700 assertEquals("short", ClassUtils.getSimpleName(short.class));
701 assertEquals("int", ClassUtils.getSimpleName(int.class));
702 assertEquals("long", ClassUtils.getSimpleName(long.class));
703 assertEquals("float", ClassUtils.getSimpleName(float.class));
704 assertEquals("double", ClassUtils.getSimpleName(double.class));
705
706
707 assertEquals("boolean[]", ClassUtils.getSimpleName(boolean[].class));
708 assertEquals("byte[]", ClassUtils.getSimpleName(byte[].class));
709 assertEquals("char[]", ClassUtils.getSimpleName(char[].class));
710 assertEquals("short[]", ClassUtils.getSimpleName(short[].class));
711 assertEquals("int[]", ClassUtils.getSimpleName(int[].class));
712 assertEquals("long[]", ClassUtils.getSimpleName(long[].class));
713 assertEquals("float[]", ClassUtils.getSimpleName(float[].class));
714 assertEquals("double[]", ClassUtils.getSimpleName(double[].class));
715
716
717 assertEquals("String[][]", ClassUtils.getSimpleName(String[][].class));
718 assertEquals("String[][][]", ClassUtils.getSimpleName(String[][][].class));
719 assertEquals("String[][][][]", ClassUtils.getSimpleName(String[][][][].class));
720
721
722 final class Named {
723
724 }
725 assertEquals("", ClassUtils.getSimpleName(new Object() {
726
727 }.getClass()));
728 assertEquals("Named", ClassUtils.getSimpleName(Named.class));
729 }
730
731 @Test
732 void test_getSimpleName_Object() {
733 assertEquals("ClassUtils", ClassUtils.getSimpleName(new ClassUtils()));
734 assertEquals("Inner", ClassUtils.getSimpleName(new Inner()));
735 assertEquals("String", ClassUtils.getSimpleName("hello"));
736 assertEquals(StringUtils.EMPTY, ClassUtils.getSimpleName(null));
737 assertEquals(StringUtils.EMPTY, ClassUtils.getSimpleName(null));
738 }
739
740 @Test
741 void test_getSimpleName_Object_String() {
742 assertEquals("ClassUtils", ClassUtils.getSimpleName(new ClassUtils(), "<null>"));
743 assertEquals("Inner", ClassUtils.getSimpleName(new Inner(), "<null>"));
744 assertEquals("String", ClassUtils.getSimpleName("hello", "<null>"));
745 assertEquals("<null>", ClassUtils.getSimpleName(null, "<null>"));
746 assertNull(ClassUtils.getSimpleName(null, null));
747 }
748
749 @Test
750 void test_isAssignable() {
751 assertFalse(ClassUtils.isAssignable((Class<?>) null, null));
752 assertFalse(ClassUtils.isAssignable(String.class, null));
753
754 assertTrue(ClassUtils.isAssignable(null, Object.class));
755 assertTrue(ClassUtils.isAssignable(null, Integer.class));
756 assertFalse(ClassUtils.isAssignable(null, Integer.TYPE));
757 assertTrue(ClassUtils.isAssignable(String.class, Object.class));
758 assertTrue(ClassUtils.isAssignable(String.class, String.class));
759 assertFalse(ClassUtils.isAssignable(Object.class, String.class));
760
761 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.class));
762 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Object.class));
763 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE));
764 assertTrue(ClassUtils.isAssignable(Integer.class, Object.class));
765 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE));
766 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class));
767 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class));
768 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Object.class));
769 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE));
770 assertTrue(ClassUtils.isAssignable(Boolean.class, Object.class));
771 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE));
772 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class));
773 }
774
775 @Test
776 void test_isAssignable_Autoboxing() {
777 assertFalse(ClassUtils.isAssignable((Class<?>) null, null, true));
778 assertFalse(ClassUtils.isAssignable(String.class, null, true));
779 assertTrue(ClassUtils.isAssignable(null, Object.class, true));
780 assertTrue(ClassUtils.isAssignable(null, Integer.class, true));
781 assertFalse(ClassUtils.isAssignable(null, Integer.TYPE, true));
782 assertTrue(ClassUtils.isAssignable(String.class, Object.class, true));
783 assertTrue(ClassUtils.isAssignable(String.class, String.class, true));
784 assertFalse(ClassUtils.isAssignable(Object.class, String.class, true));
785 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.class, true));
786 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Object.class, true));
787 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE, true));
788 assertTrue(ClassUtils.isAssignable(Integer.class, Object.class, true));
789 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE, true));
790 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class, true));
791 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class, true));
792 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true));
793 assertTrue(ClassUtils.isAssignable(Boolean.class, Object.class, true));
794 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE, true));
795 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class, true));
796 }
797
798 @Test
799 void test_isAssignable_ClassArray_ClassArray() {
800 final Class<?>[] array2 = new Class[] {Object.class, Object.class};
801 final Class<?>[] array1 = new Class[] {Object.class};
802 final Class<?>[] array1s = new Class[] {String.class};
803 final Class<?>[] array0 = new Class[] {};
804 final Class<?>[] arrayPrimitives = {Integer.TYPE, Boolean.TYPE};
805 final Class<?>[] arrayWrappers = {Integer.class, Boolean.class};
806
807 assertFalse(ClassUtils.isAssignable(array1, array2));
808 assertFalse(ClassUtils.isAssignable(null, array2));
809 assertTrue(ClassUtils.isAssignable(null, array0));
810 assertTrue(ClassUtils.isAssignable(array0, array0));
811 assertTrue(ClassUtils.isAssignable(array0, (Class<?>[]) null));
812 assertTrue(ClassUtils.isAssignable(null, (Class<?>[]) null));
813
814 assertFalse(ClassUtils.isAssignable(array1, array1s));
815 assertTrue(ClassUtils.isAssignable(array1s, array1s));
816 assertTrue(ClassUtils.isAssignable(array1s, array1));
817
818 assertTrue(ClassUtils.isAssignable(arrayPrimitives, arrayWrappers));
819 assertTrue(ClassUtils.isAssignable(arrayWrappers, arrayPrimitives));
820 assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1));
821 assertFalse(ClassUtils.isAssignable(arrayWrappers, array1));
822 assertTrue(ClassUtils.isAssignable(arrayPrimitives, array2));
823 assertTrue(ClassUtils.isAssignable(arrayWrappers, array2));
824 }
825
826 @Test
827 void test_isAssignable_ClassArray_ClassArray_Autoboxing() {
828 final Class<?>[] array2 = new Class[] {Object.class, Object.class};
829 final Class<?>[] array1 = new Class[] {Object.class};
830 final Class<?>[] array1s = new Class[] {String.class};
831 final Class<?>[] array0 = new Class[] {};
832 final Class<?>[] arrayPrimitives = {Integer.TYPE, Boolean.TYPE};
833 final Class<?>[] arrayWrappers = {Integer.class, Boolean.class};
834
835 assertFalse(ClassUtils.isAssignable(array1, array2, true));
836 assertFalse(ClassUtils.isAssignable(null, array2, true));
837 assertTrue(ClassUtils.isAssignable(null, array0, true));
838 assertTrue(ClassUtils.isAssignable(array0, array0, true));
839 assertTrue(ClassUtils.isAssignable(array0, null, true));
840 assertTrue(ClassUtils.isAssignable((Class[]) null, null, true));
841
842 assertFalse(ClassUtils.isAssignable(array1, array1s, true));
843 assertTrue(ClassUtils.isAssignable(array1s, array1s, true));
844 assertTrue(ClassUtils.isAssignable(array1s, array1, true));
845
846 assertTrue(ClassUtils.isAssignable(arrayPrimitives, arrayWrappers, true));
847 assertTrue(ClassUtils.isAssignable(arrayWrappers, arrayPrimitives, true));
848 assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1, true));
849 assertFalse(ClassUtils.isAssignable(arrayWrappers, array1, true));
850 assertTrue(ClassUtils.isAssignable(arrayPrimitives, array2, true));
851 assertTrue(ClassUtils.isAssignable(arrayWrappers, array2, true));
852 }
853
854 @Test
855 void test_isAssignable_ClassArray_ClassArray_NoAutoboxing() {
856 final Class<?>[] array2 = new Class[] {Object.class, Object.class};
857 final Class<?>[] array1 = new Class[] {Object.class};
858 final Class<?>[] array1s = new Class[] {String.class};
859 final Class<?>[] array0 = new Class[] {};
860 final Class<?>[] arrayPrimitives = {Integer.TYPE, Boolean.TYPE};
861 final Class<?>[] arrayWrappers = {Integer.class, Boolean.class};
862
863 assertFalse(ClassUtils.isAssignable(array1, array2, false));
864 assertFalse(ClassUtils.isAssignable(null, array2, false));
865 assertTrue(ClassUtils.isAssignable(null, array0, false));
866 assertTrue(ClassUtils.isAssignable(array0, array0, false));
867 assertTrue(ClassUtils.isAssignable(array0, null, false));
868 assertTrue(ClassUtils.isAssignable((Class[]) null, null, false));
869
870 assertFalse(ClassUtils.isAssignable(array1, array1s, false));
871 assertTrue(ClassUtils.isAssignable(array1s, array1s, false));
872 assertTrue(ClassUtils.isAssignable(array1s, array1, false));
873
874 assertFalse(ClassUtils.isAssignable(arrayPrimitives, arrayWrappers, false));
875 assertFalse(ClassUtils.isAssignable(arrayWrappers, arrayPrimitives, false));
876 assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1, false));
877 assertFalse(ClassUtils.isAssignable(arrayWrappers, array1, false));
878 assertTrue(ClassUtils.isAssignable(arrayWrappers, array2, false));
879 assertFalse(ClassUtils.isAssignable(arrayPrimitives, array2, false));
880 }
881
882 @Test
883 void test_isAssignable_DefaultUnboxing_Widening() {
884
885 assertFalse(ClassUtils.isAssignable(Byte.class, Character.TYPE), "byte -> char");
886 assertTrue(ClassUtils.isAssignable(Byte.class, Byte.TYPE), "byte -> byte");
887 assertTrue(ClassUtils.isAssignable(Byte.class, Short.TYPE), "byte -> short");
888 assertTrue(ClassUtils.isAssignable(Byte.class, Integer.TYPE), "byte -> int");
889 assertTrue(ClassUtils.isAssignable(Byte.class, Long.TYPE), "byte -> long");
890 assertTrue(ClassUtils.isAssignable(Byte.class, Float.TYPE), "byte -> float");
891 assertTrue(ClassUtils.isAssignable(Byte.class, Double.TYPE), "byte -> double");
892 assertFalse(ClassUtils.isAssignable(Byte.class, Boolean.TYPE), "byte -> boolean");
893
894
895 assertFalse(ClassUtils.isAssignable(Short.class, Character.TYPE), "short -> char");
896 assertFalse(ClassUtils.isAssignable(Short.class, Byte.TYPE), "short -> byte");
897 assertTrue(ClassUtils.isAssignable(Short.class, Short.TYPE), "short -> short");
898 assertTrue(ClassUtils.isAssignable(Short.class, Integer.TYPE), "short -> int");
899 assertTrue(ClassUtils.isAssignable(Short.class, Long.TYPE), "short -> long");
900 assertTrue(ClassUtils.isAssignable(Short.class, Float.TYPE), "short -> float");
901 assertTrue(ClassUtils.isAssignable(Short.class, Double.TYPE), "short -> double");
902 assertFalse(ClassUtils.isAssignable(Short.class, Boolean.TYPE), "short -> boolean");
903
904
905 assertTrue(ClassUtils.isAssignable(Character.class, Character.TYPE), "char -> char");
906 assertFalse(ClassUtils.isAssignable(Character.class, Byte.TYPE), "char -> byte");
907 assertFalse(ClassUtils.isAssignable(Character.class, Short.TYPE), "char -> short");
908 assertTrue(ClassUtils.isAssignable(Character.class, Integer.TYPE), "char -> int");
909 assertTrue(ClassUtils.isAssignable(Character.class, Long.TYPE), "char -> long");
910 assertTrue(ClassUtils.isAssignable(Character.class, Float.TYPE), "char -> float");
911 assertTrue(ClassUtils.isAssignable(Character.class, Double.TYPE), "char -> double");
912 assertFalse(ClassUtils.isAssignable(Character.class, Boolean.TYPE), "char -> boolean");
913
914
915 assertFalse(ClassUtils.isAssignable(Integer.class, Character.TYPE), "int -> char");
916 assertFalse(ClassUtils.isAssignable(Integer.class, Byte.TYPE), "int -> byte");
917 assertFalse(ClassUtils.isAssignable(Integer.class, Short.TYPE), "int -> short");
918 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE), "int -> int");
919 assertTrue(ClassUtils.isAssignable(Integer.class, Long.TYPE), "int -> long");
920 assertTrue(ClassUtils.isAssignable(Integer.class, Float.TYPE), "int -> float");
921 assertTrue(ClassUtils.isAssignable(Integer.class, Double.TYPE), "int -> double");
922 assertFalse(ClassUtils.isAssignable(Integer.class, Boolean.TYPE), "int -> boolean");
923
924
925 assertFalse(ClassUtils.isAssignable(Long.class, Character.TYPE), "long -> char");
926 assertFalse(ClassUtils.isAssignable(Long.class, Byte.TYPE), "long -> byte");
927 assertFalse(ClassUtils.isAssignable(Long.class, Short.TYPE), "long -> short");
928 assertFalse(ClassUtils.isAssignable(Long.class, Integer.TYPE), "long -> int");
929 assertTrue(ClassUtils.isAssignable(Long.class, Long.TYPE), "long -> long");
930 assertTrue(ClassUtils.isAssignable(Long.class, Float.TYPE), "long -> float");
931 assertTrue(ClassUtils.isAssignable(Long.class, Double.TYPE), "long -> double");
932 assertFalse(ClassUtils.isAssignable(Long.class, Boolean.TYPE), "long -> boolean");
933
934
935 assertFalse(ClassUtils.isAssignable(Float.class, Character.TYPE), "float -> char");
936 assertFalse(ClassUtils.isAssignable(Float.class, Byte.TYPE), "float -> byte");
937 assertFalse(ClassUtils.isAssignable(Float.class, Short.TYPE), "float -> short");
938 assertFalse(ClassUtils.isAssignable(Float.class, Integer.TYPE), "float -> int");
939 assertFalse(ClassUtils.isAssignable(Float.class, Long.TYPE), "float -> long");
940 assertTrue(ClassUtils.isAssignable(Float.class, Float.TYPE), "float -> float");
941 assertTrue(ClassUtils.isAssignable(Float.class, Double.TYPE), "float -> double");
942 assertFalse(ClassUtils.isAssignable(Float.class, Boolean.TYPE), "float -> boolean");
943
944
945 assertFalse(ClassUtils.isAssignable(Double.class, Character.TYPE), "double -> char");
946 assertFalse(ClassUtils.isAssignable(Double.class, Byte.TYPE), "double -> byte");
947 assertFalse(ClassUtils.isAssignable(Double.class, Short.TYPE), "double -> short");
948 assertFalse(ClassUtils.isAssignable(Double.class, Integer.TYPE), "double -> int");
949 assertFalse(ClassUtils.isAssignable(Double.class, Long.TYPE), "double -> long");
950 assertFalse(ClassUtils.isAssignable(Double.class, Float.TYPE), "double -> float");
951 assertTrue(ClassUtils.isAssignable(Double.class, Double.TYPE), "double -> double");
952 assertFalse(ClassUtils.isAssignable(Double.class, Boolean.TYPE), "double -> boolean");
953
954
955 assertFalse(ClassUtils.isAssignable(Boolean.class, Character.TYPE), "boolean -> char");
956 assertFalse(ClassUtils.isAssignable(Boolean.class, Byte.TYPE), "boolean -> byte");
957 assertFalse(ClassUtils.isAssignable(Boolean.class, Short.TYPE), "boolean -> short");
958 assertFalse(ClassUtils.isAssignable(Boolean.class, Integer.TYPE), "boolean -> int");
959 assertFalse(ClassUtils.isAssignable(Boolean.class, Long.TYPE), "boolean -> long");
960 assertFalse(ClassUtils.isAssignable(Boolean.class, Float.TYPE), "boolean -> float");
961 assertFalse(ClassUtils.isAssignable(Boolean.class, Double.TYPE), "boolean -> double");
962 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE), "boolean -> boolean");
963 }
964
965 @Test
966 void test_isAssignable_NoAutoboxing() {
967 assertFalse(ClassUtils.isAssignable((Class<?>) null, null, false));
968 assertFalse(ClassUtils.isAssignable(String.class, null, false));
969 assertTrue(ClassUtils.isAssignable(null, Object.class, false));
970 assertTrue(ClassUtils.isAssignable(null, Integer.class, false));
971 assertFalse(ClassUtils.isAssignable(null, Integer.TYPE, false));
972 assertTrue(ClassUtils.isAssignable(String.class, Object.class, false));
973 assertTrue(ClassUtils.isAssignable(String.class, String.class, false));
974 assertFalse(ClassUtils.isAssignable(Object.class, String.class, false));
975 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Integer.class, false));
976 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Object.class, false));
977 assertFalse(ClassUtils.isAssignable(Integer.class, Integer.TYPE, false));
978 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE, false));
979 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class, false));
980 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class, false));
981 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Object.class, false));
982 assertFalse(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, false));
983 assertTrue(ClassUtils.isAssignable(Boolean.class, Object.class, false));
984 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE, false));
985 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class, false));
986 }
987
988 @Test
989 void test_isAssignable_Unboxing_Widening() {
990
991 assertFalse(ClassUtils.isAssignable(Byte.class, Character.TYPE, true), "byte -> char");
992 assertTrue(ClassUtils.isAssignable(Byte.class, Byte.TYPE, true), "byte -> byte");
993 assertTrue(ClassUtils.isAssignable(Byte.class, Short.TYPE, true), "byte -> short");
994 assertTrue(ClassUtils.isAssignable(Byte.class, Integer.TYPE, true), "byte -> int");
995 assertTrue(ClassUtils.isAssignable(Byte.class, Long.TYPE, true), "byte -> long");
996 assertTrue(ClassUtils.isAssignable(Byte.class, Float.TYPE, true), "byte -> float");
997 assertTrue(ClassUtils.isAssignable(Byte.class, Double.TYPE, true), "byte -> double");
998 assertFalse(ClassUtils.isAssignable(Byte.class, Boolean.TYPE, true), "byte -> boolean");
999
1000 assertFalse(ClassUtils.isAssignable(Short.class, Character.TYPE, true), "short -> char");
1001 assertFalse(ClassUtils.isAssignable(Short.class, Byte.TYPE, true), "short -> byte");
1002 assertTrue(ClassUtils.isAssignable(Short.class, Short.TYPE, true), "short -> short");
1003 assertTrue(ClassUtils.isAssignable(Short.class, Integer.TYPE, true), "short -> int");
1004 assertTrue(ClassUtils.isAssignable(Short.class, Long.TYPE, true), "short -> long");
1005 assertTrue(ClassUtils.isAssignable(Short.class, Float.TYPE, true), "short -> float");
1006 assertTrue(ClassUtils.isAssignable(Short.class, Double.TYPE, true), "short -> double");
1007 assertFalse(ClassUtils.isAssignable(Short.class, Boolean.TYPE, true), "short -> boolean");
1008
1009 assertTrue(ClassUtils.isAssignable(Character.class, Character.TYPE, true), "char -> char");
1010 assertFalse(ClassUtils.isAssignable(Character.class, Byte.TYPE, true), "char -> byte");
1011 assertFalse(ClassUtils.isAssignable(Character.class, Short.TYPE, true), "char -> short");
1012 assertTrue(ClassUtils.isAssignable(Character.class, Integer.TYPE, true), "char -> int");
1013 assertTrue(ClassUtils.isAssignable(Character.class, Long.TYPE, true), "char -> long");
1014 assertTrue(ClassUtils.isAssignable(Character.class, Float.TYPE, true), "char -> float");
1015 assertTrue(ClassUtils.isAssignable(Character.class, Double.TYPE, true), "char -> double");
1016 assertFalse(ClassUtils.isAssignable(Character.class, Boolean.TYPE, true), "char -> boolean");
1017
1018 assertFalse(ClassUtils.isAssignable(Integer.class, Character.TYPE, true), "int -> char");
1019 assertFalse(ClassUtils.isAssignable(Integer.class, Byte.TYPE, true), "int -> byte");
1020 assertFalse(ClassUtils.isAssignable(Integer.class, Short.TYPE, true), "int -> short");
1021 assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE, true), "int -> int");
1022 assertTrue(ClassUtils.isAssignable(Integer.class, Long.TYPE, true), "int -> long");
1023 assertTrue(ClassUtils.isAssignable(Integer.class, Float.TYPE, true), "int -> float");
1024 assertTrue(ClassUtils.isAssignable(Integer.class, Double.TYPE, true), "int -> double");
1025 assertFalse(ClassUtils.isAssignable(Integer.class, Boolean.TYPE, true), "int -> boolean");
1026
1027 assertFalse(ClassUtils.isAssignable(Long.class, Character.TYPE, true), "long -> char");
1028 assertFalse(ClassUtils.isAssignable(Long.class, Byte.TYPE, true), "long -> byte");
1029 assertFalse(ClassUtils.isAssignable(Long.class, Short.TYPE, true), "long -> short");
1030 assertFalse(ClassUtils.isAssignable(Long.class, Integer.TYPE, true), "long -> int");
1031 assertTrue(ClassUtils.isAssignable(Long.class, Long.TYPE, true), "long -> long");
1032 assertTrue(ClassUtils.isAssignable(Long.class, Float.TYPE, true), "long -> float");
1033 assertTrue(ClassUtils.isAssignable(Long.class, Double.TYPE, true), "long -> double");
1034 assertFalse(ClassUtils.isAssignable(Long.class, Boolean.TYPE, true), "long -> boolean");
1035
1036 assertFalse(ClassUtils.isAssignable(Float.class, Character.TYPE, true), "float -> char");
1037 assertFalse(ClassUtils.isAssignable(Float.class, Byte.TYPE, true), "float -> byte");
1038 assertFalse(ClassUtils.isAssignable(Float.class, Short.TYPE, true), "float -> short");
1039 assertFalse(ClassUtils.isAssignable(Float.class, Integer.TYPE, true), "float -> int");
1040 assertFalse(ClassUtils.isAssignable(Float.class, Long.TYPE, true), "float -> long");
1041 assertTrue(ClassUtils.isAssignable(Float.class, Float.TYPE, true), "float -> float");
1042 assertTrue(ClassUtils.isAssignable(Float.class, Double.TYPE, true), "float -> double");
1043 assertFalse(ClassUtils.isAssignable(Float.class, Boolean.TYPE, true), "float -> boolean");
1044
1045 assertFalse(ClassUtils.isAssignable(Double.class, Character.TYPE, true), "double -> char");
1046 assertFalse(ClassUtils.isAssignable(Double.class, Byte.TYPE, true), "double -> byte");
1047 assertFalse(ClassUtils.isAssignable(Double.class, Short.TYPE, true), "double -> short");
1048 assertFalse(ClassUtils.isAssignable(Double.class, Integer.TYPE, true), "double -> int");
1049 assertFalse(ClassUtils.isAssignable(Double.class, Long.TYPE, true), "double -> long");
1050 assertFalse(ClassUtils.isAssignable(Double.class, Float.TYPE, true), "double -> float");
1051 assertTrue(ClassUtils.isAssignable(Double.class, Double.TYPE, true), "double -> double");
1052 assertFalse(ClassUtils.isAssignable(Double.class, Boolean.TYPE, true), "double -> boolean");
1053
1054 assertFalse(ClassUtils.isAssignable(Boolean.class, Character.TYPE, true), "boolean -> char");
1055 assertFalse(ClassUtils.isAssignable(Boolean.class, Byte.TYPE, true), "boolean -> byte");
1056 assertFalse(ClassUtils.isAssignable(Boolean.class, Short.TYPE, true), "boolean -> short");
1057 assertFalse(ClassUtils.isAssignable(Boolean.class, Integer.TYPE, true), "boolean -> int");
1058 assertFalse(ClassUtils.isAssignable(Boolean.class, Long.TYPE, true), "boolean -> long");
1059 assertFalse(ClassUtils.isAssignable(Boolean.class, Float.TYPE, true), "boolean -> float");
1060 assertFalse(ClassUtils.isAssignable(Boolean.class, Double.TYPE, true), "boolean -> double");
1061 assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true), "boolean -> boolean");
1062 }
1063
1064 @Test
1065 void test_isAssignable_Widening() {
1066
1067 assertFalse(ClassUtils.isAssignable(Byte.TYPE, Character.TYPE), "byte -> char");
1068 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Byte.TYPE), "byte -> byte");
1069 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Short.TYPE), "byte -> short");
1070 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Integer.TYPE), "byte -> int");
1071 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Long.TYPE), "byte -> long");
1072 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Float.TYPE), "byte -> float");
1073 assertTrue(ClassUtils.isAssignable(Byte.TYPE, Double.TYPE), "byte -> double");
1074 assertFalse(ClassUtils.isAssignable(Byte.TYPE, Boolean.TYPE), "byte -> boolean");
1075
1076 assertFalse(ClassUtils.isAssignable(Short.TYPE, Character.TYPE), "short -> char");
1077 assertFalse(ClassUtils.isAssignable(Short.TYPE, Byte.TYPE), "short -> byte");
1078 assertTrue(ClassUtils.isAssignable(Short.TYPE, Short.TYPE), "short -> short");
1079 assertTrue(ClassUtils.isAssignable(Short.TYPE, Integer.TYPE), "short -> int");
1080 assertTrue(ClassUtils.isAssignable(Short.TYPE, Long.TYPE), "short -> long");
1081 assertTrue(ClassUtils.isAssignable(Short.TYPE, Float.TYPE), "short -> float");
1082 assertTrue(ClassUtils.isAssignable(Short.TYPE, Double.TYPE), "short -> double");
1083 assertFalse(ClassUtils.isAssignable(Short.TYPE, Boolean.TYPE), "short -> boolean");
1084
1085 assertTrue(ClassUtils.isAssignable(Character.TYPE, Character.TYPE), "char -> char");
1086 assertFalse(ClassUtils.isAssignable(Character.TYPE, Byte.TYPE), "char -> byte");
1087 assertFalse(ClassUtils.isAssignable(Character.TYPE, Short.TYPE), "char -> short");
1088 assertTrue(ClassUtils.isAssignable(Character.TYPE, Integer.TYPE), "char -> int");
1089 assertTrue(ClassUtils.isAssignable(Character.TYPE, Long.TYPE), "char -> long");
1090 assertTrue(ClassUtils.isAssignable(Character.TYPE, Float.TYPE), "char -> float");
1091 assertTrue(ClassUtils.isAssignable(Character.TYPE, Double.TYPE), "char -> double");
1092 assertFalse(ClassUtils.isAssignable(Character.TYPE, Boolean.TYPE), "char -> boolean");
1093
1094 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Character.TYPE), "int -> char");
1095 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Byte.TYPE), "int -> byte");
1096 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Short.TYPE), "int -> short");
1097 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE), "int -> int");
1098 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Long.TYPE), "int -> long");
1099 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Float.TYPE), "int -> float");
1100 assertTrue(ClassUtils.isAssignable(Integer.TYPE, Double.TYPE), "int -> double");
1101 assertFalse(ClassUtils.isAssignable(Integer.TYPE, Boolean.TYPE), "int -> boolean");
1102
1103 assertFalse(ClassUtils.isAssignable(Long.TYPE, Character.TYPE), "long -> char");
1104 assertFalse(ClassUtils.isAssignable(Long.TYPE, Byte.TYPE), "long -> byte");
1105 assertFalse(ClassUtils.isAssignable(Long.TYPE, Short.TYPE), "long -> short");
1106 assertFalse(ClassUtils.isAssignable(Long.TYPE, Integer.TYPE), "long -> int");
1107 assertTrue(ClassUtils.isAssignable(Long.TYPE, Long.TYPE), "long -> long");
1108 assertTrue(ClassUtils.isAssignable(Long.TYPE, Float.TYPE), "long -> float");
1109 assertTrue(ClassUtils.isAssignable(Long.TYPE, Double.TYPE), "long -> double");
1110 assertFalse(ClassUtils.isAssignable(Long.TYPE, Boolean.TYPE), "long -> boolean");
1111
1112 assertFalse(ClassUtils.isAssignable(Float.TYPE, Character.TYPE), "float -> char");
1113 assertFalse(ClassUtils.isAssignable(Float.TYPE, Byte.TYPE), "float -> byte");
1114 assertFalse(ClassUtils.isAssignable(Float.TYPE, Short.TYPE), "float -> short");
1115 assertFalse(ClassUtils.isAssignable(Float.TYPE, Integer.TYPE), "float -> int");
1116 assertFalse(ClassUtils.isAssignable(Float.TYPE, Long.TYPE), "float -> long");
1117 assertTrue(ClassUtils.isAssignable(Float.TYPE, Float.TYPE), "float -> float");
1118 assertTrue(ClassUtils.isAssignable(Float.TYPE, Double.TYPE), "float -> double");
1119 assertFalse(ClassUtils.isAssignable(Float.TYPE, Boolean.TYPE), "float -> boolean");
1120
1121 assertFalse(ClassUtils.isAssignable(Double.TYPE, Character.TYPE), "double -> char");
1122 assertFalse(ClassUtils.isAssignable(Double.TYPE, Byte.TYPE), "double -> byte");
1123 assertFalse(ClassUtils.isAssignable(Double.TYPE, Short.TYPE), "double -> short");
1124 assertFalse(ClassUtils.isAssignable(Double.TYPE, Integer.TYPE), "double -> int");
1125 assertFalse(ClassUtils.isAssignable(Double.TYPE, Long.TYPE), "double -> long");
1126 assertFalse(ClassUtils.isAssignable(Double.TYPE, Float.TYPE), "double -> float");
1127 assertTrue(ClassUtils.isAssignable(Double.TYPE, Double.TYPE), "double -> double");
1128 assertFalse(ClassUtils.isAssignable(Double.TYPE, Boolean.TYPE), "double -> boolean");
1129
1130 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Character.TYPE), "boolean -> char");
1131 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Byte.TYPE), "boolean -> byte");
1132 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Short.TYPE), "boolean -> short");
1133 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Integer.TYPE), "boolean -> int");
1134 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Long.TYPE), "boolean -> long");
1135 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Float.TYPE), "boolean -> float");
1136 assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Double.TYPE), "boolean -> double");
1137 assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE), "boolean -> boolean");
1138 }
1139
1140 @Test
1141 void test_isInnerClass_Class() {
1142 assertTrue(ClassUtils.isInnerClass(Inner.class));
1143 assertTrue(ClassUtils.isInnerClass(Map.Entry.class));
1144 assertTrue(ClassUtils.isInnerClass(new Cloneable() {
1145
1146 }.getClass()));
1147 assertFalse(ClassUtils.isInnerClass(this.getClass()));
1148 assertFalse(ClassUtils.isInnerClass(String.class));
1149 assertFalse(ClassUtils.isInnerClass(null));
1150 }
1151
1152 @Test
1153 void testComparable() {
1154 final TreeMap<Class<?>, String> map = new TreeMap<>(ClassUtils.comparator());
1155 map.put(String.class, "lastEntry");
1156 map.toString();
1157 map.put(Character.class, "firstEntry");
1158 map.toString();
1159 assertEquals("firstEntry", map.firstEntry().getValue());
1160 assertEquals(Character.class, map.firstEntry().getKey());
1161
1162 assertEquals("lastEntry", map.lastEntry().getValue());
1163 assertEquals(String.class, map.lastEntry().getKey());
1164
1165 map.put(null, "null");
1166 map.toString();
1167 assertEquals("null", map.get(null));
1168 }
1169
1170 @Test
1171 void testConstructor() {
1172 assertNotNull(new ClassUtils());
1173 final Constructor<?>[] cons = ClassUtils.class.getDeclaredConstructors();
1174 assertEquals(1, cons.length);
1175 assertTrue(Modifier.isPublic(cons[0].getModifiers()));
1176 assertTrue(Modifier.isPublic(ClassUtils.class.getModifiers()));
1177 assertFalse(Modifier.isFinal(ClassUtils.class.getModifiers()));
1178 }
1179
1180 @Test
1181 void testGetClassByNormalNameArrays() throws ClassNotFoundException {
1182 assertEquals(int[].class, ClassUtils.getClass("int[]"));
1183 assertEquals(long[].class, ClassUtils.getClass("long[]"));
1184 assertEquals(short[].class, ClassUtils.getClass("short[]"));
1185 assertEquals(byte[].class, ClassUtils.getClass("byte[]"));
1186 assertEquals(char[].class, ClassUtils.getClass("char[]"));
1187 assertEquals(float[].class, ClassUtils.getClass("float[]"));
1188 assertEquals(double[].class, ClassUtils.getClass("double[]"));
1189 assertEquals(boolean[].class, ClassUtils.getClass("boolean[]"));
1190 assertEquals(String[].class, ClassUtils.getClass("java.lang.String[]"));
1191 assertEquals(java.util.Map.Entry[].class, ClassUtils.getClass("java.util.Map.Entry[]"));
1192 assertEquals(java.util.Map.Entry[].class, ClassUtils.getClass("java.util.Map$Entry[]"));
1193 assertEquals(java.util.Map.Entry[].class, ClassUtils.getClass("[Ljava.util.Map.Entry;"));
1194 assertEquals(java.util.Map.Entry[].class, ClassUtils.getClass("[Ljava.util.Map$Entry;"));
1195 }
1196
1197 @Test
1198 void testGetClassByNormalNameArrays2D() throws ClassNotFoundException {
1199 assertEquals(int[][].class, ClassUtils.getClass("int[][]"));
1200 assertEquals(long[][].class, ClassUtils.getClass("long[][]"));
1201 assertEquals(short[][].class, ClassUtils.getClass("short[][]"));
1202 assertEquals(byte[][].class, ClassUtils.getClass("byte[][]"));
1203 assertEquals(char[][].class, ClassUtils.getClass("char[][]"));
1204 assertEquals(float[][].class, ClassUtils.getClass("float[][]"));
1205 assertEquals(double[][].class, ClassUtils.getClass("double[][]"));
1206 assertEquals(boolean[][].class, ClassUtils.getClass("boolean[][]"));
1207 assertEquals(String[][].class, ClassUtils.getClass("java.lang.String[][]"));
1208 }
1209
1210 @Test
1211 void testGetClassClassNotFound() throws Exception {
1212 assertGetClassThrowsClassNotFound("bool");
1213 assertGetClassThrowsClassNotFound("bool[]");
1214 assertGetClassThrowsClassNotFound("integer[]");
1215 }
1216
1217 @Test
1218 void testGetClassInvalidArguments() throws Exception {
1219 assertGetClassThrowsNullPointerException(null);
1220 assertGetClassThrowsClassNotFound("[][][]");
1221 assertGetClassThrowsClassNotFound("[[]");
1222 assertGetClassThrowsClassNotFound("[");
1223 assertGetClassThrowsClassNotFound("java.lang.String][");
1224 assertGetClassThrowsClassNotFound(".hello.world");
1225 assertGetClassThrowsClassNotFound("hello..world");
1226 }
1227
1228 @Test
1229 void testGetClassRawPrimitives() throws ClassNotFoundException {
1230 assertEquals(int.class, ClassUtils.getClass("int"));
1231 assertEquals(long.class, ClassUtils.getClass("long"));
1232 assertEquals(short.class, ClassUtils.getClass("short"));
1233 assertEquals(byte.class, ClassUtils.getClass("byte"));
1234 assertEquals(char.class, ClassUtils.getClass("char"));
1235 assertEquals(float.class, ClassUtils.getClass("float"));
1236 assertEquals(double.class, ClassUtils.getClass("double"));
1237 assertEquals(boolean.class, ClassUtils.getClass("boolean"));
1238 assertEquals(void.class, ClassUtils.getClass("void"));
1239 }
1240
1241 @Test
1242 void testGetClassWithArrayClasses() throws Exception {
1243 assertGetClassReturnsClass(String[].class);
1244 assertGetClassReturnsClass(int[].class);
1245 assertGetClassReturnsClass(long[].class);
1246 assertGetClassReturnsClass(short[].class);
1247 assertGetClassReturnsClass(byte[].class);
1248 assertGetClassReturnsClass(char[].class);
1249 assertGetClassReturnsClass(float[].class);
1250 assertGetClassReturnsClass(double[].class);
1251 assertGetClassReturnsClass(boolean[].class);
1252 }
1253
1254 @Test
1255 void testGetClassWithArrayClasses2D() throws Exception {
1256 assertGetClassReturnsClass(String[][].class);
1257 assertGetClassReturnsClass(int[][].class);
1258 assertGetClassReturnsClass(long[][].class);
1259 assertGetClassReturnsClass(short[][].class);
1260 assertGetClassReturnsClass(byte[][].class);
1261 assertGetClassReturnsClass(char[][].class);
1262 assertGetClassReturnsClass(float[][].class);
1263 assertGetClassReturnsClass(double[][].class);
1264 assertGetClassReturnsClass(boolean[][].class);
1265 }
1266
1267 @Test
1268 void testGetComponentType() {
1269 final CX[] newArray = {};
1270 @SuppressWarnings("unchecked")
1271 final Class<CX[]> classCxArray = (Class<CX[]>) newArray.getClass();
1272
1273 final Class<CX> componentType = ClassUtils.getComponentType(classCxArray);
1274 assertEquals(CX.class, componentType);
1275 assertNull(ClassUtils.getComponentType(null));
1276 }
1277
1278 @Test
1279 void testGetInnerClass() throws ClassNotFoundException {
1280 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest.Inner.DeeplyNested"));
1281 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest.Inner$DeeplyNested"));
1282 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest$Inner$DeeplyNested"));
1283 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest$Inner.DeeplyNested"));
1284
1285 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest.Inner.DeeplyNested", true));
1286 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest.Inner$DeeplyNested", true));
1287 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest$Inner$DeeplyNested", true));
1288 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass("org.apache.commons.lang3.ClassUtilsTest$Inner.DeeplyNested", true));
1289
1290 final ClassLoader classLoader = Inner.DeeplyNested.class.getClassLoader();
1291 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass(classLoader, "org.apache.commons.lang3.ClassUtilsTest.Inner.DeeplyNested"));
1292 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass(classLoader, "org.apache.commons.lang3.ClassUtilsTest.Inner$DeeplyNested"));
1293 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass(classLoader, "org.apache.commons.lang3.ClassUtilsTest$Inner$DeeplyNested"));
1294 assertEquals(Inner.DeeplyNested.class, ClassUtils.getClass(classLoader, "org.apache.commons.lang3.ClassUtilsTest$Inner.DeeplyNested"));
1295
1296 }
1297
1298 @Test
1299 void testGetPublicMethod() throws Exception {
1300
1301 final Set<?> set = Collections.unmodifiableSet(new HashSet<>());
1302 final Method isEmptyMethod = ClassUtils.getPublicMethod(set.getClass(), "isEmpty");
1303 assertTrue(Modifier.isPublic(isEmptyMethod.getDeclaringClass().getModifiers()));
1304 assertTrue((Boolean) isEmptyMethod.invoke(set));
1305
1306
1307 final Method toStringMethod = ClassUtils.getPublicMethod(Object.class, "toString");
1308 assertEquals(Object.class.getMethod("toString"), toStringMethod);
1309 }
1310
1311 @Test
1312 void testHierarchyExcludingInterfaces() {
1313 final Iterator<Class<?>> iter = ClassUtils.hierarchy(StringParameterizedChild.class).iterator();
1314 assertEquals(StringParameterizedChild.class, iter.next());
1315 assertEquals(GenericParent.class, iter.next());
1316 assertEquals(Object.class, iter.next());
1317 assertFalse(iter.hasNext());
1318 }
1319
1320 @Test
1321 void testHierarchyIncludingInterfaces() {
1322 final Iterator<Class<?>> iter = ClassUtils.hierarchy(StringParameterizedChild.class, Interfaces.INCLUDE).iterator();
1323 assertEquals(StringParameterizedChild.class, iter.next());
1324 assertEquals(GenericParent.class, iter.next());
1325 assertEquals(GenericConsumer.class, iter.next());
1326 assertEquals(Object.class, iter.next());
1327 assertFalse(iter.hasNext());
1328 }
1329
1330 @Test
1331 void testIsPrimitiveOrWrapper() {
1332
1333 assertTrue(ClassUtils.isPrimitiveOrWrapper(Boolean.class), "Boolean.class");
1334 assertTrue(ClassUtils.isPrimitiveOrWrapper(Byte.class), "Byte.class");
1335 assertTrue(ClassUtils.isPrimitiveOrWrapper(Character.class), "Character.class");
1336 assertTrue(ClassUtils.isPrimitiveOrWrapper(Short.class), "Short.class");
1337 assertTrue(ClassUtils.isPrimitiveOrWrapper(Integer.class), "Integer.class");
1338 assertTrue(ClassUtils.isPrimitiveOrWrapper(Long.class), "Long.class");
1339 assertTrue(ClassUtils.isPrimitiveOrWrapper(Double.class), "Double.class");
1340 assertTrue(ClassUtils.isPrimitiveOrWrapper(Float.class), "Float.class");
1341
1342 assertTrue(ClassUtils.isPrimitiveOrWrapper(Boolean.TYPE), "boolean");
1343 assertTrue(ClassUtils.isPrimitiveOrWrapper(Byte.TYPE), "byte");
1344 assertTrue(ClassUtils.isPrimitiveOrWrapper(Character.TYPE), "char");
1345 assertTrue(ClassUtils.isPrimitiveOrWrapper(Short.TYPE), "short");
1346 assertTrue(ClassUtils.isPrimitiveOrWrapper(Integer.TYPE), "int");
1347 assertTrue(ClassUtils.isPrimitiveOrWrapper(Long.TYPE), "long");
1348 assertTrue(ClassUtils.isPrimitiveOrWrapper(Double.TYPE), "double");
1349 assertTrue(ClassUtils.isPrimitiveOrWrapper(Float.TYPE), "float");
1350 assertTrue(ClassUtils.isPrimitiveOrWrapper(Void.TYPE), "Void.TYPE");
1351
1352 assertFalse(ClassUtils.isPrimitiveOrWrapper(null), "null");
1353 assertFalse(ClassUtils.isPrimitiveOrWrapper(Void.class), "Void.class");
1354 assertFalse(ClassUtils.isPrimitiveOrWrapper(String.class), "String.class");
1355 assertFalse(ClassUtils.isPrimitiveOrWrapper(this.getClass()), "this.getClass()");
1356 }
1357
1358 @Test
1359 void testIsPrimitiveWrapper() {
1360
1361
1362 assertTrue(ClassUtils.isPrimitiveWrapper(Boolean.class), "Boolean.class");
1363 assertTrue(ClassUtils.isPrimitiveWrapper(Byte.class), "Byte.class");
1364 assertTrue(ClassUtils.isPrimitiveWrapper(Character.class), "Character.class");
1365 assertTrue(ClassUtils.isPrimitiveWrapper(Short.class), "Short.class");
1366 assertTrue(ClassUtils.isPrimitiveWrapper(Integer.class), "Integer.class");
1367 assertTrue(ClassUtils.isPrimitiveWrapper(Long.class), "Long.class");
1368 assertTrue(ClassUtils.isPrimitiveWrapper(Double.class), "Double.class");
1369 assertTrue(ClassUtils.isPrimitiveWrapper(Float.class), "Float.class");
1370
1371
1372 assertFalse(ClassUtils.isPrimitiveWrapper(Boolean.TYPE), "boolean");
1373 assertFalse(ClassUtils.isPrimitiveWrapper(Byte.TYPE), "byte");
1374 assertFalse(ClassUtils.isPrimitiveWrapper(Character.TYPE), "char");
1375 assertFalse(ClassUtils.isPrimitiveWrapper(Short.TYPE), "short");
1376 assertFalse(ClassUtils.isPrimitiveWrapper(Integer.TYPE), "int");
1377 assertFalse(ClassUtils.isPrimitiveWrapper(Long.TYPE), "long");
1378 assertFalse(ClassUtils.isPrimitiveWrapper(Double.TYPE), "double");
1379 assertFalse(ClassUtils.isPrimitiveWrapper(Float.TYPE), "float");
1380
1381
1382 assertFalse(ClassUtils.isPrimitiveWrapper(null), "null");
1383 assertFalse(ClassUtils.isPrimitiveWrapper(Void.class), "Void.class");
1384 assertFalse(ClassUtils.isPrimitiveWrapper(Void.TYPE), "Void.TYPE");
1385 assertFalse(ClassUtils.isPrimitiveWrapper(String.class), "String.class");
1386 assertFalse(ClassUtils.isPrimitiveWrapper(this.getClass()), "this.getClass()");
1387 }
1388
1389 @Test
1390 void testPrimitivesToWrappers() {
1391
1392
1393 assertNull(ClassUtils.primitivesToWrappers((Class<?>[]) null), "null -> null");
1394
1395 assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.primitivesToWrappers(), "empty -> empty");
1396 final Class<?>[] castNull = ClassUtils.primitivesToWrappers((Class<?>) null);
1397 assertArrayEquals(new Class<?>[] {null}, castNull, "(Class<?>) null -> [null]");
1398
1399 assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.primitivesToWrappers(ArrayUtils.EMPTY_CLASS_ARRAY), "empty -> empty");
1400
1401
1402 final Class<?>[] primitives = new Class[] {Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE, Double.TYPE, Float.TYPE,
1403 String.class, ClassUtils.class};
1404 final Class<?>[] wrappers = ClassUtils.primitivesToWrappers(primitives);
1405
1406 for (int i = 0; i < primitives.length; i++) {
1407
1408 final Class<?> primitive = primitives[i];
1409 final Class<?> expectedWrapper = ClassUtils.primitiveToWrapper(primitive);
1410
1411 assertEquals(expectedWrapper, wrappers[i], primitive + " -> " + expectedWrapper);
1412 }
1413
1414
1415 final Class<?>[] noPrimitives = new Class[] {String.class, ClassUtils.class, Void.TYPE};
1416
1417 assertNotSame(noPrimitives, ClassUtils.primitivesToWrappers(noPrimitives), "unmodified");
1418 }
1419
1420 @Test
1421 void testPrimitiveToWrapper() {
1422
1423
1424 assertEquals(Boolean.class, ClassUtils.primitiveToWrapper(Boolean.TYPE), "boolean -> Boolean.class");
1425 assertEquals(Byte.class, ClassUtils.primitiveToWrapper(Byte.TYPE), "byte -> Byte.class");
1426 assertEquals(Character.class, ClassUtils.primitiveToWrapper(Character.TYPE), "char -> Character.class");
1427 assertEquals(Short.class, ClassUtils.primitiveToWrapper(Short.TYPE), "short -> Short.class");
1428 assertEquals(Integer.class, ClassUtils.primitiveToWrapper(Integer.TYPE), "int -> Integer.class");
1429 assertEquals(Long.class, ClassUtils.primitiveToWrapper(Long.TYPE), "long -> Long.class");
1430 assertEquals(Double.class, ClassUtils.primitiveToWrapper(Double.TYPE), "double -> Double.class");
1431 assertEquals(Float.class, ClassUtils.primitiveToWrapper(Float.TYPE), "float -> Float.class");
1432
1433
1434 assertEquals(String.class, ClassUtils.primitiveToWrapper(String.class), "String.class -> String.class");
1435 assertEquals(ClassUtils.class, ClassUtils.primitiveToWrapper(ClassUtils.class), "ClassUtils.class -> ClassUtils.class");
1436 assertEquals(Void.TYPE, ClassUtils.primitiveToWrapper(Void.TYPE), "Void.TYPE -> Void.TYPE");
1437
1438
1439 assertNull(ClassUtils.primitiveToWrapper(null), "null -> null");
1440 }
1441
1442
1443
1444 @Test
1445 void testShowJavaBug() throws Exception {
1446
1447 final Set<?> set = Collections.unmodifiableSet(new HashSet<>());
1448 final Method isEmptyMethod = set.getClass().getMethod("isEmpty");
1449 assertThrows(IllegalAccessException.class, () -> isEmptyMethod.invoke(set));
1450 }
1451
1452 @Test
1453 void testToClass_object() {
1454
1455 assertNull(ClassUtils.toClass((Object[]) null));
1456
1457
1458 assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.toClass(), "empty -> empty");
1459 final Class<?>[] castNull = ClassUtils.toClass((Object) null);
1460 assertArrayEquals(new Object[] {null}, castNull, "(Object) null -> [null]");
1461
1462 assertSame(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.toClass(ArrayUtils.EMPTY_OBJECT_ARRAY));
1463
1464 assertArrayEquals(new Class[] {String.class, Integer.class, Double.class}, ClassUtils.toClass("Test", Integer.valueOf(1), Double.valueOf(99d)));
1465
1466 assertArrayEquals(new Class[] {String.class, null, Double.class}, ClassUtils.toClass("Test", null, Double.valueOf(99d)));
1467 }
1468
1469 @Test
1470 void testWithInterleavingWhitespace() throws ClassNotFoundException {
1471 assertEquals(int[].class, ClassUtils.getClass(" int [ ] "));
1472 assertEquals(long[].class, ClassUtils.getClass("\rlong\t[\n]\r"));
1473 assertEquals(short[].class, ClassUtils.getClass("\tshort \t\t[]"));
1474 assertEquals(byte[].class, ClassUtils.getClass("byte[\t\t\n\r] "));
1475 }
1476
1477 @Test
1478 void testWrappersToPrimitives() {
1479
1480 final Class<?>[] classes = {Boolean.class, Byte.class, Character.class, Short.class, Integer.class, Long.class, Float.class, Double.class, String.class,
1481 ClassUtils.class, null};
1482
1483 final Class<?>[] primitives = ClassUtils.wrappersToPrimitives(classes);
1484
1485 assertEquals(classes.length, primitives.length, "Wrong length of result array");
1486 for (int i = 0; i < classes.length; i++) {
1487 final Class<?> expectedPrimitive = ClassUtils.wrapperToPrimitive(classes[i]);
1488 assertEquals(expectedPrimitive, primitives[i], classes[i] + " -> " + expectedPrimitive);
1489 }
1490 }
1491
1492 @Test
1493 void testWrappersToPrimitivesEmpty() {
1494 final Class<?>[] empty = new Class[0];
1495 assertArrayEquals(empty, ClassUtils.wrappersToPrimitives(empty), "Wrong result for empty input");
1496 }
1497
1498 @Test
1499 void testWrappersToPrimitivesNull() {
1500
1501 assertNull(ClassUtils.wrappersToPrimitives((Class<?>[]) null), "Wrong result for null input");
1502
1503 assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.wrappersToPrimitives(), "empty -> empty");
1504 final Class<?>[] castNull = ClassUtils.wrappersToPrimitives((Class<?>) null);
1505 assertArrayEquals(new Class<?>[] {null}, castNull, "(Class<?>) null -> [null]");
1506 }
1507
1508 @Test
1509 void testWrapperToPrimitive() {
1510
1511 final Class<?>[] primitives = {Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE, Float.TYPE, Double.TYPE};
1512 for (final Class<?> primitive : primitives) {
1513 final Class<?> wrapperCls = ClassUtils.primitiveToWrapper(primitive);
1514 assertFalse(wrapperCls.isPrimitive(), "Still primitive");
1515 assertEquals(primitive, ClassUtils.wrapperToPrimitive(wrapperCls), wrapperCls + " -> " + primitive);
1516 }
1517 }
1518
1519 @Test
1520 void testWrapperToPrimitiveNoWrapper() {
1521 assertNull(ClassUtils.wrapperToPrimitive(String.class), "Wrong result for non wrapper class");
1522 }
1523
1524 @Test
1525 void testWrapperToPrimitiveNull() {
1526 assertNull(ClassUtils.wrapperToPrimitive(null), "Wrong result for null class");
1527 }
1528 }