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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: tests/longlong/longlong.cpp | |
3 | // Purpose: wxLongLong unit test | |
4 | // Author: Vadim Zeitlin, Wlodzimierz ABX Skiba | |
5 | // Created: 2004-04-01 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2004 Vadim Zeitlin, Wlodzimierz Skiba | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // ---------------------------------------------------------------------------- | |
11 | // headers | |
12 | // ---------------------------------------------------------------------------- | |
13 | ||
8899b155 | 14 | #include "testprec.h" |
1b035b8c VS |
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/longlong.h" | |
25 | #include "wx/timer.h" | |
26 | ||
216a72f3 VZ |
27 | #if wxUSE_LONGLONG |
28 | ||
1b035b8c VS |
29 | // ---------------------------------------------------------------------------- |
30 | // helpers for testing | |
31 | // ---------------------------------------------------------------------------- | |
32 | ||
33 | // number of iterations in loops | |
95762eaf | 34 | #define ITEMS 1000 |
1b035b8c VS |
35 | |
36 | // make a 64 bit number from 4 16 bit ones | |
37 | #define MAKE_LL(x1, x2, x3, x4) wxLongLong((x1 << 16) | x2, (x3 << 16) | x3) | |
38 | ||
39 | // get a random 64 bit number | |
40 | #define RAND_LL() MAKE_LL(rand(), rand(), rand(), rand()) | |
41 | ||
42 | static const long testLongs[] = | |
43 | { | |
44 | 0, | |
45 | 1, | |
46 | -1, | |
47 | LONG_MAX, | |
48 | LONG_MIN, | |
49 | 0x1234, | |
50 | -0x1234 | |
51 | }; | |
52 | ||
53 | // ---------------------------------------------------------------------------- | |
54 | // test class | |
55 | // ---------------------------------------------------------------------------- | |
56 | ||
57 | class LongLongTestCase : public CppUnit::TestCase | |
58 | { | |
59 | public: | |
60 | LongLongTestCase(); | |
61 | ||
62 | private: | |
63 | CPPUNIT_TEST_SUITE( LongLongTestCase ); | |
64 | CPPUNIT_TEST( Conversion ); | |
65 | CPPUNIT_TEST( Comparison ); | |
66 | CPPUNIT_TEST( Addition ); | |
67 | CPPUNIT_TEST( Multiplication ); | |
68 | CPPUNIT_TEST( Division ); | |
69 | CPPUNIT_TEST( BitOperations ); | |
70 | CPPUNIT_TEST( ToString ); | |
bec76e18 | 71 | CPPUNIT_TEST( LoHi ); |
1b035b8c VS |
72 | CPPUNIT_TEST_SUITE_END(); |
73 | ||
74 | void Conversion(); | |
75 | void Comparison(); | |
76 | void Addition(); | |
77 | void Multiplication(); | |
78 | void Division(); | |
79 | void BitOperations(); | |
80 | void ToString(); | |
bec76e18 | 81 | void LoHi(); |
1b035b8c VS |
82 | |
83 | DECLARE_NO_COPY_CLASS(LongLongTestCase) | |
84 | }; | |
85 | ||
86 | // register in the unnamed registry so that these tests are run by default | |
87 | CPPUNIT_TEST_SUITE_REGISTRATION( LongLongTestCase ); | |
88 | ||
89 | // also include in it's own registry so that these tests can be run alone | |
90 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( LongLongTestCase, "LongLongTestCase" ); | |
91 | ||
92 | LongLongTestCase::LongLongTestCase() | |
93 | { | |
94 | srand((unsigned)time(NULL)); | |
95 | } | |
96 | ||
97 | void LongLongTestCase::Conversion() | |
98 | { | |
99 | for ( size_t n = 0; n < ITEMS; n++ ) | |
100 | { | |
101 | wxLongLong a = RAND_LL(); | |
102 | ||
103 | wxLongLong b(a.GetHi(), a.GetLo()); | |
104 | CPPUNIT_ASSERT( a == b ); | |
105 | ||
106 | #if wxUSE_LONGLONG_WX | |
107 | wxLongLongWx c(a.GetHi(), a.GetLo()); | |
108 | CPPUNIT_ASSERT( a == c ); | |
109 | #endif | |
110 | ||
111 | #if wxUSE_LONGLONG_NATIVE | |
112 | wxLongLongNative d(a.GetHi(), a.GetLo()); | |
113 | CPPUNIT_ASSERT( a == d ); | |
114 | #endif | |
115 | } | |
116 | } | |
117 | ||
118 | void LongLongTestCase::Comparison() | |
119 | { | |
120 | static const long ls[2] = | |
121 | { | |
122 | 0x1234, | |
123 | -0x1234, | |
124 | }; | |
125 | ||
126 | wxLongLong lls[2]; | |
127 | lls[0] = ls[0]; | |
128 | lls[1] = ls[1]; | |
129 | ||
130 | for ( size_t n = 0; n < WXSIZEOF(testLongs); n++ ) | |
131 | { | |
132 | for ( size_t m = 0; m < WXSIZEOF(lls); m++ ) | |
133 | { | |
134 | CPPUNIT_ASSERT( (lls[m] < testLongs[n]) == (ls[m] < testLongs[n]) ); | |
135 | CPPUNIT_ASSERT( (lls[m] > testLongs[n]) == (ls[m] > testLongs[n]) ); | |
136 | CPPUNIT_ASSERT( (lls[m] <= testLongs[n]) == (ls[m] <= testLongs[n]) ); | |
137 | CPPUNIT_ASSERT( (lls[m] >= testLongs[n]) == (ls[m] >= testLongs[n]) ); | |
138 | CPPUNIT_ASSERT( (lls[m] != testLongs[n]) == (ls[m] != testLongs[n]) ); | |
139 | CPPUNIT_ASSERT( (lls[m] == testLongs[n]) == (ls[m] == testLongs[n]) ); | |
140 | } | |
141 | } | |
142 | } | |
143 | ||
144 | void LongLongTestCase::Addition() | |
145 | { | |
146 | for ( size_t n = 0; n < ITEMS; n++ ) | |
147 | { | |
148 | wxLongLong a = RAND_LL(); | |
149 | wxLongLong b = RAND_LL(); | |
150 | wxLongLong c = a + b; | |
151 | ||
152 | #if wxUSE_LONGLONG_NATIVE | |
153 | wxLongLongNative a1 = a; | |
154 | wxLongLongNative b1 = b; | |
155 | wxLongLongNative c1 = a1 + b1; | |
156 | CPPUNIT_ASSERT( c == c1 ); | |
157 | #endif | |
158 | ||
159 | #if wxUSE_LONGLONG_WX | |
160 | wxLongLongWx a2 = a; | |
161 | wxLongLongWx b2 = b; | |
162 | wxLongLongWx c2 = a2 + b2; | |
163 | CPPUNIT_ASSERT( c == c2 ); | |
164 | #endif | |
165 | } | |
166 | } | |
167 | ||
168 | void LongLongTestCase::Multiplication() | |
169 | { | |
170 | for ( size_t n = 0; n < ITEMS; n++ ) | |
171 | { | |
172 | wxLongLong a = RAND_LL(); | |
173 | wxLongLong b = RAND_LL(); | |
174 | wxLongLong c = a*b; | |
175 | ||
176 | wxLongLong a1(a.GetHi(), a.GetLo()); | |
177 | wxLongLong b1(b.GetHi(), b.GetLo()); | |
178 | wxLongLong c1 = a1*b1; | |
179 | CPPUNIT_ASSERT( c1 == c ); | |
180 | ||
181 | #if wxUSE_LONGLONG_WX | |
182 | wxLongLongWx a2(a.GetHi(), a.GetLo()); | |
183 | wxLongLongWx b2(b.GetHi(), b.GetLo()); | |
184 | wxLongLongWx c2 = a2*b2; | |
185 | CPPUNIT_ASSERT( c2 == c ); | |
186 | #endif | |
187 | ||
188 | #if wxUSE_LONGLONG_NATIVE | |
189 | wxLongLongNative a3(a.GetHi(), a.GetLo()); | |
190 | wxLongLongNative b3(b.GetHi(), b.GetLo()); | |
191 | wxLongLongNative c3 = a3*b3; | |
192 | CPPUNIT_ASSERT( c3 == c ); | |
193 | #endif | |
194 | } | |
195 | } | |
196 | ||
197 | void LongLongTestCase::Division() | |
198 | { | |
199 | for ( size_t n = 0; n < ITEMS; n++ ) | |
200 | { | |
201 | // get a random wxLongLong (shifting by 12 the MSB ensures that the | |
202 | // multiplication will not overflow) | |
203 | wxLongLong a = MAKE_LL((rand() >> 12), rand(), rand(), rand()); | |
204 | ||
205 | // get a random (but non null) long (not wxLongLong for now) divider | |
206 | long l; | |
207 | do | |
208 | { | |
209 | l = rand(); | |
210 | } | |
211 | while ( !l ); | |
212 | ||
213 | wxLongLong q = a / l; | |
214 | wxLongLong r = a % l; | |
215 | ||
216 | CPPUNIT_ASSERT( a == ( q * l + r ) ); | |
217 | ||
218 | #if wxUSE_LONGLONG_WX | |
219 | wxLongLongWx a1(a.GetHi(), a.GetLo()); | |
220 | wxLongLongWx q1 = a1 / l; | |
221 | wxLongLongWx r1 = a1 % l; | |
222 | CPPUNIT_ASSERT( q == q1 ); | |
223 | CPPUNIT_ASSERT( r == r1 ); | |
224 | CPPUNIT_ASSERT( a1 == ( q1 * l + r1 ) ); | |
225 | #endif | |
226 | ||
227 | #if wxUSE_LONGLONG_NATIVE | |
228 | wxLongLongNative a2(a.GetHi(), a.GetLo()); | |
229 | wxLongLongNative q2 = a2 / l; | |
230 | wxLongLongNative r2 = a2 % l; | |
231 | CPPUNIT_ASSERT( q == q2 ); | |
232 | CPPUNIT_ASSERT( r == r2 ); | |
233 | CPPUNIT_ASSERT( a2 == ( q2 * l + r2 ) ); | |
234 | #endif | |
235 | } | |
236 | } | |
237 | ||
238 | void LongLongTestCase::BitOperations() | |
239 | { | |
93a800a9 | 240 | for ( size_t m = 0; m < ITEMS; m++ ) |
1b035b8c VS |
241 | { |
242 | wxLongLong a = RAND_LL(); | |
243 | ||
244 | for ( size_t n = 0; n < 33; n++ ) | |
245 | { | |
246 | wxLongLong b(a.GetHi(), a.GetLo()), c, d = b, e; | |
51496782 WS |
247 | d >>= n; |
248 | c = b >> n; | |
1b035b8c | 249 | CPPUNIT_ASSERT( c == d ); |
51496782 WS |
250 | d <<= n; |
251 | e = c << n; | |
1b035b8c VS |
252 | CPPUNIT_ASSERT( d == e ); |
253 | ||
254 | #if wxUSE_LONGLONG_WX | |
255 | wxLongLongWx b1(a.GetHi(), a.GetLo()), c1, d1 = b1, e1; | |
51496782 WS |
256 | d1 >>= n; |
257 | c1 = b1 >> n; | |
1b035b8c | 258 | CPPUNIT_ASSERT( c1 == d1 ); |
51496782 WS |
259 | d1 <<= n; |
260 | e1 = c1 << n; | |
1b035b8c VS |
261 | CPPUNIT_ASSERT( d1 == e1 ); |
262 | #endif | |
263 | ||
264 | #if wxUSE_LONGLONG_NATIVE | |
265 | wxLongLongNative b2(a.GetHi(), a.GetLo()), c2, d2 = b2, e2; | |
51496782 WS |
266 | d2 >>= n; |
267 | c2 = b2 >> n; | |
1b035b8c | 268 | CPPUNIT_ASSERT( c2 == d2 ); |
51496782 WS |
269 | d2 <<= n; |
270 | e2 = c2 << n; | |
1b035b8c VS |
271 | CPPUNIT_ASSERT( d2 == e2 ); |
272 | #endif | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
277 | void LongLongTestCase::ToString() | |
278 | { | |
279 | wxString s1, s2; | |
280 | ||
281 | for ( size_t n = 0; n < WXSIZEOF(testLongs); n++ ) | |
282 | { | |
283 | wxLongLong a = testLongs[n]; | |
284 | s1 = wxString::Format(_T("%ld"), testLongs[n]); | |
285 | s2 = a.ToString(); | |
286 | CPPUNIT_ASSERT( s1 == s2 ); | |
287 | ||
51496782 WS |
288 | s2 = wxEmptyString; |
289 | s2 << a; | |
290 | CPPUNIT_ASSERT( s1 == s2 ); | |
291 | ||
1b035b8c VS |
292 | #if wxUSE_LONGLONG_WX |
293 | wxLongLongWx a1 = testLongs[n]; | |
294 | s2 = a1.ToString(); | |
295 | CPPUNIT_ASSERT( s1 == s2 ); | |
296 | #endif | |
297 | ||
298 | #if wxUSE_LONGLONG_NATIVE | |
299 | wxLongLongNative a2 = testLongs[n]; | |
300 | s2 = a2.ToString(); | |
301 | CPPUNIT_ASSERT( s1 == s2 ); | |
302 | #endif | |
303 | } | |
304 | ||
305 | wxLongLong a(0x12345678, 0x87654321); | |
306 | CPPUNIT_ASSERT( a.ToString() == _T("1311768467139281697") ); | |
307 | a.Negate(); | |
308 | CPPUNIT_ASSERT( a.ToString() == _T("-1311768467139281697") ); | |
309 | ||
1d805c14 | 310 | wxLongLong llMin(-2147483647L - 1L, 0); |
981cc5bb | 311 | CPPUNIT_ASSERT( llMin.ToString() == _T("-9223372036854775808") ); |
1d4037aa | 312 | |
1b035b8c VS |
313 | #if wxUSE_LONGLONG_WX |
314 | wxLongLongWx a1(a.GetHi(), a.GetLo()); | |
315 | CPPUNIT_ASSERT( a1.ToString() == _T("-1311768467139281697") ); | |
316 | a1.Negate(); | |
317 | CPPUNIT_ASSERT( a1.ToString() == _T("1311768467139281697") ); | |
318 | #endif | |
319 | ||
320 | #if wxUSE_LONGLONG_NATIVE | |
321 | wxLongLongNative a2(a.GetHi(), a.GetLo()); | |
322 | CPPUNIT_ASSERT( a2.ToString() == _T("-1311768467139281697") ); | |
323 | a2.Negate(); | |
324 | CPPUNIT_ASSERT( a2.ToString() == _T("1311768467139281697") ); | |
325 | #endif | |
326 | ||
327 | } | |
328 | ||
bec76e18 VZ |
329 | void LongLongTestCase::LoHi() |
330 | { | |
331 | wxLongLong ll(123, 456); | |
332 | CPPUNIT_ASSERT_EQUAL( 456u, ll.GetLo() ); | |
333 | CPPUNIT_ASSERT_EQUAL( 123, ll.GetHi() ); | |
334 | ||
335 | wxULongLong ull(987, 654); | |
336 | CPPUNIT_ASSERT_EQUAL( 654u, ull.GetLo() ); | |
337 | CPPUNIT_ASSERT_EQUAL( 987u, ull.GetHi() ); | |
338 | } | |
339 | ||
216a72f3 | 340 | #endif // wxUSE_LONGLONG |