1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#include "fast.h"
#include "shuffle.h"
#include "mersenne.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/generic/ylimits.h>
Y_UNIT_TEST_SUITE(TRandUtilsTest) {
template <typename... A>
static void TestRange(A&&... args) {
TString s0, s1;
ShuffleRange(s1, args...);
s1 = "0";
ShuffleRange(s1, args...);
s1 = "01";
ShuffleRange(s1, args...);
s1 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
s0 = s1.copy();
ShuffleRange(s1, args...);
UNIT_ASSERT(s0 != s1); // if shuffle does work, chances it will fail are 1 to 64!.
}
template <typename... A>
static void TestIter(A&&... args) {
TString s0, s1;
auto f = [&]() {
auto b = s1.begin();
auto e = s1.end();
Shuffle(b, e, args...);
};
s1 = "0";
f();
s1 = "01";
f();
s1 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
s0 = s1.copy();
f();
UNIT_ASSERT(s0 != s1); // if shuffle does work, chances it will fail are 1 to 64!.
}
Y_UNIT_TEST(TestShuffle) {
TestRange();
}
Y_UNIT_TEST(TestShuffleMersenne64) {
TMersenne<ui64> prng(42);
TestRange(prng);
}
Y_UNIT_TEST(TestShuffleMersenne32) {
TMersenne<ui32> prng(24);
TestIter(prng);
}
Y_UNIT_TEST(TestShuffleFast32) {
TFastRng32 prng(24, 0);
TestIter(prng);
}
Y_UNIT_TEST(TestShuffleFast64) {
TFastRng64 prng(24, 0, 25, 1);
TestIter(prng);
}
}
|
