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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: tests/hashes/hashes.cpp | |
7d9cfc54 | 3 | // Purpose: wxHashTable, wxHashMap, wxHashSet unit test |
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4 | // Author: Vadim Zeitlin, Mattia Barbon |
5 | // Created: 2004-05-16 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2004 Vadim Zeitlin, Mattia Barbon | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // ---------------------------------------------------------------------------- | |
11 | // headers | |
12 | // ---------------------------------------------------------------------------- | |
13 | ||
8899b155 | 14 | #include "testprec.h" |
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15 | |
16 | #ifdef __BORLANDC__ | |
17 | #pragma hdrstop | |
18 | #endif | |
19 | ||
20 | #ifndef WX_PRECOMP | |
21 | #include "wx/wx.h" | |
22 | #endif // WX_PRECOMP | |
23 | ||
24 | #include "wx/hash.h" | |
25 | #include "wx/hashmap.h" | |
26 | #include "wx/hashset.h" | |
27 | ||
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28 | // -------------------------------------------------------------------------- |
29 | // helper class for typed/untyped wxHashTable | |
30 | // -------------------------------------------------------------------------- | |
31 | ||
32 | struct Foo | |
33 | { | |
34 | Foo(int n_) { n = n_; count++; } | |
35 | ~Foo() { count--; } | |
36 | ||
37 | int n; | |
38 | ||
39 | static size_t count; | |
40 | }; | |
41 | ||
42 | size_t Foo::count = 0; | |
43 | ||
44 | struct FooObject : public wxObject | |
45 | { | |
46 | FooObject(int n_) { n = n_; count++; } | |
47 | ~FooObject() { count--; } | |
48 | ||
49 | int n; | |
50 | ||
51 | static size_t count; | |
52 | }; | |
53 | ||
54 | size_t FooObject::count = 0; | |
55 | ||
56 | // -------------------------------------------------------------------------- | |
57 | // test class | |
58 | // -------------------------------------------------------------------------- | |
59 | ||
60 | class HashesTestCase : public CppUnit::TestCase | |
61 | { | |
62 | public: | |
63 | HashesTestCase() { } | |
64 | ||
65 | private: | |
66 | CPPUNIT_TEST_SUITE( HashesTestCase ); | |
67 | CPPUNIT_TEST( wxHashTableTest ); | |
68 | CPPUNIT_TEST( wxUntypedHashTableDeleteContents ); | |
69 | CPPUNIT_TEST( wxTypedHashTableTest ); | |
70 | CPPUNIT_TEST( wxHashMapTest ); | |
71 | CPPUNIT_TEST( wxHashSetTest ); | |
72 | CPPUNIT_TEST_SUITE_END(); | |
73 | ||
74 | void wxHashTableTest(); | |
75 | void wxUntypedHashTableDeleteContents(); | |
76 | void wxTypedHashTableTest(); | |
77 | void wxHashMapTest(); | |
78 | void wxHashSetTest(); | |
79 | ||
80 | DECLARE_NO_COPY_CLASS(HashesTestCase) | |
81 | }; | |
82 | ||
83 | // register in the unnamed registry so that these tests are run by default | |
84 | CPPUNIT_TEST_SUITE_REGISTRATION( HashesTestCase ); | |
85 | ||
86 | // also include in it's own registry so that these tests can be run alone | |
87 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( HashesTestCase, "HashesTestCase" ); | |
88 | ||
89 | void HashesTestCase::wxHashTableTest() | |
90 | { | |
91 | const int COUNT = 100; | |
92 | ||
93 | { | |
94 | wxHashTable hash(wxKEY_INTEGER, 10), hash2(wxKEY_STRING); | |
95 | wxObject o; | |
96 | int i; | |
97 | ||
98 | for ( i = 0; i < COUNT; ++i ) | |
99 | hash.Put(i, &o + i); | |
100 | ||
101 | hash.BeginFind(); | |
102 | wxHashTable::compatibility_iterator it = hash.Next(); | |
103 | i = 0; | |
104 | ||
105 | while (it) | |
106 | { | |
107 | ++i; | |
108 | it = hash.Next(); | |
109 | } | |
110 | ||
111 | CPPUNIT_ASSERT( i == COUNT ); | |
112 | ||
113 | for ( i = 99; i >= 0; --i ) | |
114 | CPPUNIT_ASSERT( hash.Get(i) == &o + i ); | |
115 | ||
116 | for ( i = 0; i < COUNT; ++i ) | |
117 | hash.Put(i, &o + i + 20); | |
118 | ||
119 | for ( i = 99; i >= 0; --i ) | |
120 | CPPUNIT_ASSERT( hash.Get(i) == &o + i); | |
121 | ||
122 | for ( i = 0; i < COUNT/2; ++i ) | |
123 | CPPUNIT_ASSERT( hash.Delete(i) == &o + i); | |
124 | ||
125 | for ( i = COUNT/2; i < COUNT; ++i ) | |
126 | CPPUNIT_ASSERT( hash.Get(i) == &o + i); | |
127 | ||
128 | for ( i = 0; i < COUNT/2; ++i ) | |
129 | CPPUNIT_ASSERT( hash.Get(i) == &o + i + 20); | |
130 | ||
131 | for ( i = 0; i < COUNT/2; ++i ) | |
132 | CPPUNIT_ASSERT( hash.Delete(i) == &o + i + 20); | |
133 | ||
134 | for ( i = 0; i < COUNT/2; ++i ) | |
135 | CPPUNIT_ASSERT( hash.Get(i) == NULL); | |
136 | ||
137 | hash2.Put(_T("foo"), &o + 1); | |
138 | hash2.Put(_T("bar"), &o + 2); | |
139 | hash2.Put(_T("baz"), &o + 3); | |
140 | ||
141 | CPPUNIT_ASSERT(hash2.Get(_T("moo")) == NULL); | |
142 | CPPUNIT_ASSERT(hash2.Get(_T("bar")) == &o + 2); | |
143 | ||
144 | hash2.Put(_T("bar"), &o + 0); | |
145 | ||
146 | CPPUNIT_ASSERT(hash2.Get(_T("bar")) == &o + 2); | |
147 | } | |
148 | ||
149 | // and now some corner-case testing; 3 and 13 hash to the same bucket | |
150 | { | |
151 | wxHashTable hash(wxKEY_INTEGER, 10); | |
152 | wxObject dummy; | |
153 | ||
154 | hash.Put(3, &dummy); | |
155 | hash.Delete(3); | |
156 | ||
157 | CPPUNIT_ASSERT(hash.Get(3) == NULL); | |
158 | ||
159 | hash.Put(3, &dummy); | |
160 | hash.Put(13, &dummy); | |
161 | hash.Delete(3); | |
162 | ||
163 | CPPUNIT_ASSERT(hash.Get(3) == NULL); | |
164 | ||
165 | hash.Delete(13); | |
166 | ||
167 | CPPUNIT_ASSERT(hash.Get(13) == NULL); | |
168 | ||
169 | hash.Put(3, &dummy); | |
170 | hash.Put(13, &dummy); | |
171 | hash.Delete(13); | |
172 | ||
173 | CPPUNIT_ASSERT(hash.Get(13) == NULL); | |
174 | ||
175 | hash.Delete(3); | |
176 | ||
177 | CPPUNIT_ASSERT(hash.Get(3) == NULL); | |
178 | } | |
179 | ||
180 | // test for key + value access (specifically that supplying either | |
181 | // wrong key or wrong value returns NULL) | |
182 | { | |
183 | wxHashTable hash(wxKEY_INTEGER, 10); | |
184 | wxObject dummy; | |
185 | ||
186 | hash.Put(3, 7, &dummy + 7); | |
187 | hash.Put(4, 8, &dummy + 8); | |
188 | ||
189 | CPPUNIT_ASSERT(hash.Get(7) == NULL); | |
190 | CPPUNIT_ASSERT(hash.Get(3, 7) == &dummy + 7); | |
191 | CPPUNIT_ASSERT(hash.Get(4) == NULL); | |
192 | CPPUNIT_ASSERT(hash.Get(3) == NULL); | |
193 | CPPUNIT_ASSERT(hash.Get(8) == NULL); | |
194 | CPPUNIT_ASSERT(hash.Get(8, 4) == NULL); | |
195 | ||
196 | CPPUNIT_ASSERT(hash.Delete(7) == NULL); | |
197 | CPPUNIT_ASSERT(hash.Delete(3) == NULL); | |
198 | CPPUNIT_ASSERT(hash.Delete(3, 7) == &dummy + 7); | |
199 | } | |
200 | ||
201 | } | |
202 | ||
203 | void HashesTestCase::wxUntypedHashTableDeleteContents() | |
204 | { | |
205 | // need a nested scope for destruction | |
206 | { | |
207 | wxHashTable hash; | |
208 | hash.DeleteContents(true); | |
209 | ||
210 | CPPUNIT_ASSERT( hash.GetCount() == 0 ); | |
211 | CPPUNIT_ASSERT( FooObject::count == 0 ); | |
212 | ||
213 | static const int hashTestData[] = | |
214 | { | |
215 | 0, 1, 17, -2, 2, 4, -4, 345, 3, 3, 2, 1, | |
216 | }; | |
217 | ||
218 | size_t n; | |
219 | for ( n = 0; n < WXSIZEOF(hashTestData); n++ ) | |
220 | { | |
221 | hash.Put(hashTestData[n], n, new FooObject(n)); | |
222 | } | |
223 | ||
224 | CPPUNIT_ASSERT( hash.GetCount() == WXSIZEOF(hashTestData) ); | |
225 | CPPUNIT_ASSERT( FooObject::count == WXSIZEOF(hashTestData) ); | |
226 | ||
227 | // delete from hash without deleting object | |
228 | FooObject* foo = (FooObject*)hash.Delete(0l); | |
229 | ||
230 | CPPUNIT_ASSERT( FooObject::count == WXSIZEOF(hashTestData) ); | |
231 | delete foo; | |
232 | CPPUNIT_ASSERT( FooObject::count == WXSIZEOF(hashTestData) - 1 ); | |
233 | } | |
234 | ||
235 | // hash destroyed | |
236 | CPPUNIT_ASSERT( FooObject::count == 0 ); | |
237 | } | |
238 | ||
239 | #if WXWIN_COMPATIBILITY_2_4 | |
240 | WX_DECLARE_LIST(Foo, wxListFoos); | |
241 | #endif | |
242 | ||
243 | WX_DECLARE_HASH(Foo, wxListFoos, wxHashFoos); | |
244 | ||
245 | #if WXWIN_COMPATIBILITY_2_4 | |
246 | #include "wx/listimpl.cpp" | |
247 | WX_DEFINE_LIST(wxListFoos); | |
248 | #endif | |
249 | ||
250 | void HashesTestCase::wxTypedHashTableTest() | |
251 | { | |
252 | // need a nested scope for destruction | |
253 | { | |
254 | wxHashFoos hash; | |
255 | hash.DeleteContents(true); | |
256 | ||
257 | CPPUNIT_ASSERT( hash.GetCount() == 0 ); | |
258 | CPPUNIT_ASSERT( Foo::count == 0 ); | |
259 | ||
260 | static const int hashTestData[] = | |
261 | { | |
262 | 0, 1, 17, -2, 2, 4, -4, 345, 3, 3, 2, 1, | |
263 | }; | |
264 | ||
265 | size_t n; | |
266 | for ( n = 0; n < WXSIZEOF(hashTestData); n++ ) | |
267 | { | |
268 | hash.Put(hashTestData[n], n, new Foo(n)); | |
269 | } | |
270 | ||
271 | CPPUNIT_ASSERT( hash.GetCount() == WXSIZEOF(hashTestData) ); | |
272 | CPPUNIT_ASSERT( Foo::count == WXSIZEOF(hashTestData) ); | |
273 | ||
274 | for ( n = 0; n < WXSIZEOF(hashTestData); n++ ) | |
275 | { | |
276 | Foo *foo = hash.Get(hashTestData[n], n); | |
277 | ||
278 | CPPUNIT_ASSERT( foo != NULL ); | |
279 | CPPUNIT_ASSERT( foo->n == (int)n ); | |
280 | } | |
281 | ||
282 | // element not in hash | |
283 | CPPUNIT_ASSERT( hash.Get(1234) == NULL ); | |
284 | CPPUNIT_ASSERT( hash.Get(1, 0) == NULL ); | |
285 | ||
286 | // delete from hash without deleting object | |
287 | Foo* foo = hash.Delete(0); | |
288 | ||
289 | CPPUNIT_ASSERT( Foo::count == WXSIZEOF(hashTestData) ); | |
290 | delete foo; | |
291 | CPPUNIT_ASSERT( Foo::count == WXSIZEOF(hashTestData) - 1 ); | |
292 | } | |
293 | ||
294 | // hash destroyed | |
295 | CPPUNIT_ASSERT( Foo::count == 0 ); | |
296 | } | |
297 | ||
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298 | // test compilation of basic map types |
299 | WX_DECLARE_HASH_MAP( int*, int*, wxPointerHash, wxPointerEqual, myPtrHashMap ); | |
300 | WX_DECLARE_HASH_MAP( long, long, wxIntegerHash, wxIntegerEqual, myLongHashMap ); | |
301 | WX_DECLARE_HASH_MAP( unsigned long, unsigned, wxIntegerHash, wxIntegerEqual, | |
302 | myUnsignedHashMap ); | |
303 | WX_DECLARE_HASH_MAP( unsigned int, unsigned, wxIntegerHash, wxIntegerEqual, | |
304 | myTestHashMap1 ); | |
305 | WX_DECLARE_HASH_MAP( int, unsigned, wxIntegerHash, wxIntegerEqual, | |
306 | myTestHashMap2 ); | |
307 | WX_DECLARE_HASH_MAP( short, unsigned, wxIntegerHash, wxIntegerEqual, | |
308 | myTestHashMap3 ); | |
309 | WX_DECLARE_HASH_MAP( unsigned short, unsigned, wxIntegerHash, wxIntegerEqual, | |
310 | myTestHashMap4 ); | |
311 | ||
312 | // same as: | |
313 | // WX_DECLARE_HASH_MAP( wxString, wxString, wxStringHash, wxStringEqual, | |
314 | // myStringHashMap ); | |
315 | WX_DECLARE_STRING_HASH_MAP(wxString, myStringHashMap); | |
316 | ||
317 | typedef myStringHashMap::iterator Itor; | |
318 | ||
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319 | void HashesTestCase::wxHashMapTest() |
320 | { | |
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321 | myStringHashMap sh(0); // as small as possible |
322 | wxString buf; | |
323 | size_t i; | |
324 | const size_t count = 10000; | |
325 | ||
326 | // init with some data | |
327 | for( i = 0; i < count; ++i ) | |
328 | { | |
329 | buf.Printf(wxT("%d"), i ); | |
330 | sh[buf] = wxT("A") + buf + wxT("C"); | |
331 | } | |
332 | ||
333 | // test that insertion worked | |
334 | CPPUNIT_ASSERT( sh.size() == count ); | |
335 | ||
336 | for( i = 0; i < count; ++i ) | |
337 | { | |
338 | buf.Printf(wxT("%d"), i ); | |
339 | CPPUNIT_ASSERT( sh[buf] == wxT("A") + buf + wxT("C") ); | |
340 | } | |
341 | ||
342 | // check that iterators work | |
343 | Itor it; | |
344 | for( i = 0, it = sh.begin(); it != sh.end(); ++it, ++i ) | |
345 | { | |
346 | CPPUNIT_ASSERT( i != count ); | |
347 | CPPUNIT_ASSERT( it->second == sh[it->first] ); | |
348 | } | |
349 | ||
350 | CPPUNIT_ASSERT( sh.size() == i ); | |
351 | ||
352 | // test copy ctor, assignment operator | |
353 | myStringHashMap h1( sh ), h2( 0 ); | |
354 | h2 = sh; | |
355 | ||
356 | for( i = 0, it = sh.begin(); it != sh.end(); ++it, ++i ) | |
357 | { | |
358 | CPPUNIT_ASSERT( h1[it->first] == it->second ); | |
359 | CPPUNIT_ASSERT( h2[it->first] == it->second ); | |
360 | } | |
361 | ||
362 | // other tests | |
363 | for( i = 0; i < count; ++i ) | |
364 | { | |
365 | buf.Printf(wxT("%d"), i ); | |
366 | size_t sz = sh.size(); | |
367 | ||
368 | // test find() and erase(it) | |
369 | if( i < 100 ) | |
370 | { | |
371 | it = sh.find( buf ); | |
372 | CPPUNIT_ASSERT( it != sh.end() ); | |
373 | ||
374 | sh.erase( it ); | |
375 | ||
376 | CPPUNIT_ASSERT( sh.find( buf ) == sh.end() ); | |
377 | } | |
378 | else | |
379 | // test erase(key) | |
380 | { | |
381 | size_t c = sh.erase( buf ); | |
382 | CPPUNIT_ASSERT( c == 1 ); | |
383 | CPPUNIT_ASSERT( sh.find( buf ) == sh.end() ); | |
384 | } | |
385 | ||
386 | // count should decrease | |
387 | CPPUNIT_ASSERT( sh.size() == sz - 1 ); | |
388 | } | |
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389 | } |
390 | ||
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391 | // test compilation of basic set types |
392 | WX_DECLARE_HASH_SET( int*, wxPointerHash, wxPointerEqual, myPtrHashSet ); | |
393 | WX_DECLARE_HASH_SET( long, wxIntegerHash, wxIntegerEqual, myLongHashSet ); | |
394 | WX_DECLARE_HASH_SET( unsigned long, wxIntegerHash, wxIntegerEqual, | |
395 | myUnsignedHashSet ); | |
396 | WX_DECLARE_HASH_SET( unsigned int, wxIntegerHash, wxIntegerEqual, | |
397 | myTestHashSet1 ); | |
398 | WX_DECLARE_HASH_SET( int, wxIntegerHash, wxIntegerEqual, | |
399 | myTestHashSet2 ); | |
400 | WX_DECLARE_HASH_SET( short, wxIntegerHash, wxIntegerEqual, | |
401 | myTestHashSet3 ); | |
402 | WX_DECLARE_HASH_SET( unsigned short, wxIntegerHash, wxIntegerEqual, | |
403 | myTestHashSet4 ); | |
404 | WX_DECLARE_HASH_SET( wxString, wxStringHash, wxStringEqual, | |
405 | myTestHashSet5 ); | |
406 | ||
407 | struct MyStruct | |
408 | { | |
409 | int* ptr; | |
410 | wxString str; | |
411 | }; | |
412 | ||
413 | class MyHash | |
414 | { | |
415 | public: | |
416 | unsigned long operator()(const MyStruct& s) const | |
417 | { return m_dummy(s.ptr); } | |
418 | MyHash& operator=(const MyHash&) { return *this; } | |
419 | private: | |
420 | wxPointerHash m_dummy; | |
421 | }; | |
422 | ||
423 | class MyEqual | |
424 | { | |
425 | public: | |
426 | bool operator()(const MyStruct& s1, const MyStruct& s2) const | |
427 | { return s1.ptr == s2.ptr; } | |
428 | MyEqual& operator=(const MyEqual&) { return *this; } | |
429 | }; | |
430 | ||
431 | WX_DECLARE_HASH_SET( MyStruct, MyHash, MyEqual, mySet ); | |
432 | ||
433 | typedef myTestHashSet5 wxStringHashSet; | |
434 | ||
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435 | void HashesTestCase::wxHashSetTest() |
436 | { | |
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437 | wxStringHashSet set1; |
438 | ||
439 | set1.insert( _T("abc") ); | |
440 | ||
441 | CPPUNIT_ASSERT( set1.size() == 1 ); | |
442 | ||
443 | set1.insert( _T("bbc") ); | |
444 | set1.insert( _T("cbc") ); | |
445 | ||
446 | CPPUNIT_ASSERT( set1.size() == 3 ); | |
447 | ||
448 | set1.insert( _T("abc") ); | |
449 | ||
450 | CPPUNIT_ASSERT( set1.size() == 3 ); | |
451 | ||
452 | mySet set2; | |
453 | int dummy; | |
454 | MyStruct tmp; | |
455 | ||
456 | tmp.ptr = &dummy; tmp.str = _T("ABC"); | |
457 | set2.insert( tmp ); | |
458 | tmp.ptr = &dummy + 1; | |
459 | set2.insert( tmp ); | |
460 | tmp.ptr = &dummy; tmp.str = _T("CDE"); | |
461 | set2.insert( tmp ); | |
462 | ||
463 | CPPUNIT_ASSERT( set2.size() == 2 ); | |
464 | ||
465 | mySet::iterator it = set2.find( tmp ); | |
466 | ||
467 | CPPUNIT_ASSERT( it != set2.end() ); | |
468 | CPPUNIT_ASSERT( it->ptr == &dummy ); | |
469 | CPPUNIT_ASSERT( it->str == _T("ABC") ); | |
cbca1e08 | 470 | } |