1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// SuperTux
// Copyright (C) 2018 Ingo Ruhnke <grumbel@gmail.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <gtest/gtest.h>
#include "math/random.hpp"
TEST(RandomTest, rand1i)
{
Random random;
random.seed(0);
for(int i = 0; i < 1000; ++i)
{
int v = random.rand(10);
ASSERT_LE(0, v);
ASSERT_LT(v, 10);
}
}
TEST(RandomTest, rand2i)
{
Random random;
random.seed(0);
for(int i = 0; i < 1000; ++i)
{
int v = random.rand(10, 20);
ASSERT_LE(10, v);
ASSERT_LT(v, 20);
}
}
TEST(RandomTest, rand1f)
{
Random random;
random.seed(0);
for(int i = 0; i < 1000; ++i)
{
float v = random.randf(10);
ASSERT_LE(0.0f, v);
ASSERT_LT(v, 10.0f);
}
}
TEST(RandomTest, rand2f)
{
Random random;
random.seed(0);
for(int i = 0; i < 1000; ++i)
{
float v = random.randf(10.0f, 20.0f);
ASSERT_LE(10.0f, v);
ASSERT_LT(v, 20.0f);
}
}
TEST(RandomTest, rand_determinism)
{
Random random;
random.seed(0);
std::vector<int> run1;
run1.reserve(1000);
for(int i = 0; i < 1000; ++i)
{
run1.push_back(random.rand());
}
random.seed(0);
std::vector<int> run2;
run2.reserve(1000);
for(int i = 0; i < 1000; ++i)
{
run2.push_back(random.rand());
}
ASSERT_EQ(run1, run2);
}
TEST(RandomTest, randf_determinism)
{
Random random;
random.seed(0);
std::vector<float> run1;
run1.reserve(1000);
for(int i = 0; i < 1000; ++i)
{
run1.push_back(random.randf(1.0f));
}
random.seed(0);
std::vector<float> run2;
run2.reserve(1000);
for(int i = 0; i < 1000; ++i)
{
run2.push_back(random.randf(1.0f));
}
ASSERT_EQ(run1, run2);
}
/* EOF */
|
