1 /******************************************
2 Copyright (c) 2016, Mate Soos
3
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"), to deal
6 in the Software without restriction, including without limitation the rights
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the Software is
9 furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 THE SOFTWARE.
21 ***********************************************/
22
23 #include "gtest/gtest.h"
24
25 #include <set>
26 using std::set;
27
28 #include "src/solver.h"
29 #include "src/matrixfinder.h"
30 #include "src/solverconf.h"
31 using namespace CMSat;
32 #include "test_helper.h"
33
34 struct gauss : public ::testing::Test {
gaussgauss35 gauss()
36 {
37 must_inter.store(false, std::memory_order_relaxed);
38 SolverConf conf;
39 //conf.verbosity = 20;
40 s = new Solver(&conf, &must_inter);
41 s->new_vars(40);
42 s->conf.gaussconf.min_gauss_xor_clauses = 0;
43 mf = new MatrixFinder(s);
44 }
~gaussgauss45 ~gauss()
46 {
47 delete s;
48 }
49
50 Solver* s;
51 MatrixFinder* mf = NULL;
52 std::vector<uint32_t> vars;
53 std::atomic<bool> must_inter;
54 vector<Xor> xs;
55 bool can_detach;
56 };
57
TEST_F(gauss,min_rows)58 TEST_F(gauss, min_rows)
59 {
60 //s->conf.verbosity = 20;
61 s->conf.gaussconf.min_matrix_rows = 2;
62 xs.push_back(str_to_xors("1, 2, 3 = 0")[0]);
63 xs.push_back(str_to_xors("1, 2, 3, 4 = 0")[0]);
64 s->xor_clauses_updated = true;
65 s->xorclauses = xs;
66
67 mf->findMatrixes(can_detach, false);
68
69 EXPECT_EQ(s->gmatrices.size(), 1);
70 }
71
TEST_F(gauss,min_rows_2)72 TEST_F(gauss, min_rows_2)
73 {
74 //s->conf.verbosity = 20;
75 s->conf.gaussconf.min_matrix_rows = 3;
76 xs.push_back(str_to_xors("1, 2, 3 = 0")[0]);
77 xs.push_back(str_to_xors("1, 2, 3, 4 = 0")[0]);
78 s->xor_clauses_updated = true;
79 s->xorclauses = xs;
80
81 mf->findMatrixes(can_detach, false);
82
83 EXPECT_EQ(s->gmatrices.size(), 0);
84 }
85
TEST_F(gauss,separate_1)86 TEST_F(gauss, separate_1)
87 {
88 //s->conf.verbosity = 20;
89 s->conf.gaussconf.min_matrix_rows = 1;
90 xs.push_back(str_to_xors("1, 2, 3 = 0")[0]);
91 xs.push_back(str_to_xors("5, 6, 7, 8 = 0")[0]);
92 s->xor_clauses_updated = true;
93 s->xorclauses = xs;
94
95 mf->findMatrixes(can_detach, false);
96
97 EXPECT_EQ(s->gmatrices.size(), 2);
98 }
99
TEST_F(gauss,separate_2)100 TEST_F(gauss, separate_2)
101 {
102 //s->conf.verbosity = 20;
103 s->conf.gaussconf.min_matrix_rows = 1;
104 xs.push_back(str_to_xors("1, 2, 3 = 0")[0]);
105 xs.push_back(str_to_xors("4, 5, 6 = 0")[0]);
106 xs.push_back(str_to_xors("3, 4, 10 = 0")[0]);
107
108 xs.push_back(str_to_xors("15, 16, 17, 18 = 0")[0]);
109 xs.push_back(str_to_xors("11, 15, 19 = 0")[0]);
110 xs.push_back(str_to_xors("19, 20, 12 = 0")[0]);
111 s->xor_clauses_updated = true;
112 s->xorclauses = xs;
113
114 mf->findMatrixes(can_detach, false);
115
116 EXPECT_EQ(s->gmatrices.size(), 2);
117 }
118
TEST_F(gauss,separate_3)119 TEST_F(gauss, separate_3)
120 {
121 //s->conf.verbosity = 20;
122 s->conf.gaussconf.min_matrix_rows = 1;
123 xs.push_back(str_to_xors("1, 2, 3 = 0")[0]);
124 xs.push_back(str_to_xors("4, 5, 6 = 0")[0]);
125 xs.push_back(str_to_xors("3, 4, 10 = 0")[0]);
126
127 xs.push_back(str_to_xors("15, 16, 17, 18 = 0")[0]);
128 xs.push_back(str_to_xors("11, 15, 19 = 0")[0]);
129 xs.push_back(str_to_xors("19, 20, 12 = 0")[0]);
130
131 xs.push_back(str_to_xors("21, 22, 23, 29 = 0")[0]);
132 xs.push_back(str_to_xors("21, 28, 29 = 0")[0]);
133 xs.push_back(str_to_xors("25, 21, 27 = 0")[0]);
134 s->xor_clauses_updated = true;
135 s->xorclauses = xs;
136
137 mf->findMatrixes(can_detach, false);
138
139 EXPECT_EQ(s->gmatrices.size(), 3);
140 }
141
main(int argc,char ** argv)142 int main(int argc, char **argv) {
143 ::testing::InitGoogleTest(&argc, argv);
144 return RUN_ALL_TESTS();
145 }
146