forked from google/or-tools
-
Notifications
You must be signed in to change notification settings - Fork 0
/
forbidden_intervals_test.cc
164 lines (147 loc) · 4.92 KB
/
forbidden_intervals_test.cc
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
// Copyright 2011-2012 Google
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "ortools/constraint_solver/constraint_solver.h"
namespace operations_research {
class ForbiddenIntervalTestSimpleReductionOnBothSide : public DecisionBuilder {
public:
ForbiddenIntervalTestSimpleReductionOnBothSide(
IntVar* const var)
: var_(var) {}
~ForbiddenIntervalTestSimpleReductionOnBothSide() override {}
Decision* Next(Solver* const s) override {
CHECK_EQ(101, var_->Min());
CHECK_EQ(899, var_->Max());
return NULL;
}
private:
IntVar* const var_;
};
class ForbiddenIntervalTestMultipleReductionsOnMin : public DecisionBuilder {
public:
ForbiddenIntervalTestMultipleReductionsOnMin(
IntVar* const var)
: var_(var) {}
~ForbiddenIntervalTestMultipleReductionsOnMin() override {}
Decision* Next(Solver* const s) override {
CHECK_EQ(0, var_->Min());
CHECK_EQ(1000, var_->Max());
var_->SetMin(5);
CHECK_EQ(5, var_->Min());
CHECK_EQ(1000, var_->Max());
var_->SetMax(995);
CHECK_EQ(5, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMin(10);
CHECK_EQ(21, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMin(30);
CHECK_EQ(30, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMin(505);
CHECK_EQ(511, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMin(600);
CHECK_EQ(600, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMin(900);
CHECK_EQ(901, var_->Min());
CHECK_EQ(995, var_->Max());
return NULL;
}
private:
IntVar* const var_;
};
class ForbiddenIntervalTestMultipleReductionsOnMax : public DecisionBuilder {
public:
ForbiddenIntervalTestMultipleReductionsOnMax(
IntVar* const var)
: var_(var) {}
~ForbiddenIntervalTestMultipleReductionsOnMax() override {}
Decision* Next(Solver* const s) override {
CHECK_EQ(0, var_->Min());
CHECK_EQ(1000, var_->Max());
var_->SetMin(5);
CHECK_EQ(5, var_->Min());
CHECK_EQ(1000, var_->Max());
var_->SetMax(995);
CHECK_EQ(5, var_->Min());
CHECK_EQ(995, var_->Max());
var_->SetMax(900);
CHECK_EQ(5, var_->Min());
CHECK_EQ(799, var_->Max());
var_->SetMax(750);
CHECK_EQ(5, var_->Min());
CHECK_EQ(750, var_->Max());
var_->SetMax(505);
CHECK_EQ(5, var_->Min());
CHECK_EQ(499, var_->Max());
var_->SetMax(300);
CHECK_EQ(5, var_->Min());
CHECK_EQ(300, var_->Max());
var_->SetMax(20);
CHECK_EQ(5, var_->Min());
CHECK_EQ(9, var_->Max());
return NULL;
}
private:
IntVar* const var_;
};
class ForbiddenIntervalTest {
public:
void SetUp(std::vector<int64>& starts, std::vector<int64>& ends) {
solver_.reset(new Solver("ForbiddenIntervalTest"));
var_ = solver_->MakeIntVar(0, 1000, "var");
CHECK_EQ(starts.size(), ends.size());
for(std::size_t i=0; i < starts.size(); ++i) {
var_->RemoveInterval(starts[i], ends[i]);
}
}
std::unique_ptr<Solver> solver_;
IntVar* var_;
void TestSimpleReductionOnBothSide() {
std::cout << "TestSimpleReductionOnBothSide" << std::endl;
std::vector<int64> starts = {0, 900};
std::vector<int64> ends = {100, 1000};
SetUp(starts, ends);
CHECK(solver_->Solve(solver_->RevAlloc(
new ForbiddenIntervalTestSimpleReductionOnBothSide(var_))));
std::cout << " .. done" << std::endl;
}
void TestMultipleReductionsOnMin() {
std::cout << "TestMultipleReductionsOnMin" << std::endl;
std::vector<int64> starts = {10, 500, 800};
std::vector<int64> ends = {20, 510, 900};
SetUp(starts, ends);
CHECK(solver_->Solve(solver_->RevAlloc(
new ForbiddenIntervalTestMultipleReductionsOnMin(var_))));
std::cout << " .. done" << std::endl;
}
void TestMultipleReductionsOnMax() {
std::cout << "TestMultipleReductionsOnMax" << std::endl;
std::vector<int64> starts = {10, 500, 800};
std::vector<int64> ends = {20, 510, 900};
SetUp(starts, ends);
CHECK(solver_->Solve(solver_->RevAlloc(
new ForbiddenIntervalTestMultipleReductionsOnMax(var_))));
std::cout << " .. done" << std::endl;
}
};
} // namespace operations_research
int main(int argc, char** argv) {
gflags::ParseCommandLineFlags(&argc, &argv, true);
operations_research::ForbiddenIntervalTest forbidden_intervals_test;
forbidden_intervals_test.TestSimpleReductionOnBothSide();
forbidden_intervals_test.TestMultipleReductionsOnMin();
forbidden_intervals_test.TestMultipleReductionsOnMax();
return 0;
}