1 | // Boost.Signals2 library |
2 | |
3 | // Copyright Douglas Gregor 2002-2004. Use, modification and |
4 | // distribution is subject to the Boost Software License, Version |
5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
6 | // http://www.boost.org/LICENSE_1_0.txt) |
7 | |
8 | // For more information, see http://www.boost.org |
9 | |
10 | #include <boost/signals2.hpp> |
11 | #define BOOST_TEST_MODULE ordering_test |
12 | #include <boost/test/included/unit_test.hpp> |
13 | #include <iostream> |
14 | #include <vector> |
15 | #include <algorithm> |
16 | #include <cstdlib> |
17 | #include <ctime> |
18 | #include <functional> |
19 | |
20 | std::vector<int> valuesOutput; |
21 | bool ungrouped1 = false; |
22 | bool ungrouped2 = false; |
23 | bool ungrouped3 = false; |
24 | |
25 | struct emit_int { |
26 | emit_int(int v) : value(v) {} |
27 | |
28 | void operator()() const |
29 | { |
30 | BOOST_CHECK(value == 42 || (!ungrouped1 && !ungrouped2 && !ungrouped3)); |
31 | valuesOutput.push_back(x: value); |
32 | std::cout << value << ' '; |
33 | } |
34 | |
35 | private: |
36 | int value; |
37 | }; |
38 | |
39 | struct write_ungrouped1 { |
40 | void operator()() const |
41 | { |
42 | BOOST_CHECK(!ungrouped1); |
43 | ungrouped1 = true; |
44 | std::cout << "(Ungrouped #1)" << ' '; |
45 | } |
46 | }; |
47 | |
48 | struct write_ungrouped2 { |
49 | void operator()() const |
50 | { |
51 | BOOST_CHECK(!ungrouped2); |
52 | ungrouped2 = true; |
53 | std::cout << "(Ungrouped #2)" << ' '; |
54 | } |
55 | }; |
56 | |
57 | struct write_ungrouped3 { |
58 | void operator()() const |
59 | { |
60 | BOOST_CHECK(!ungrouped3); |
61 | ungrouped3 = true; |
62 | std::cout << "(Ungrouped #3)" << ' '; |
63 | } |
64 | }; |
65 | |
66 | int return_argument(int x) |
67 | { |
68 | return x; |
69 | } |
70 | |
71 | void test_group_compare() |
72 | { |
73 | boost::signals2::signal |
74 | < |
75 | int (), |
76 | boost::signals2::last_value<int>, |
77 | int, |
78 | std::greater< int > |
79 | > sig; |
80 | |
81 | sig.connect( group: 1, slot: boost::bind( f: &return_argument, a1: 1) ); |
82 | sig.connect( group: 2, slot: boost::bind( f: &return_argument, a1: 2) ); |
83 | |
84 | BOOST_CHECK(sig() == 1); |
85 | } |
86 | |
87 | BOOST_AUTO_TEST_CASE(test_main) |
88 | { |
89 | using namespace std; |
90 | srand(seed: static_cast<unsigned>(time(timer: 0))); |
91 | |
92 | std::vector<int> sortedValues; |
93 | |
94 | boost::signals2::signal<void ()> sig; |
95 | sig.connect(slot: write_ungrouped1()); |
96 | for (int i = 0; i < 100; ++i) { |
97 | #ifdef BOOST_NO_STDC_NAMESPACE |
98 | int v = rand() % 100; |
99 | #else |
100 | int v = std::rand() % 100; |
101 | #endif |
102 | sortedValues.push_back(x: v); |
103 | sig.connect(group: v, slot: emit_int(v)); |
104 | |
105 | if (i == 50) { |
106 | sig.connect(slot: write_ungrouped2()); |
107 | } |
108 | } |
109 | sig.connect(slot: write_ungrouped3()); |
110 | |
111 | std::sort(first: sortedValues.begin(), last: sortedValues.end()); |
112 | |
113 | // 17 at beginning, 42 at end |
114 | sortedValues.insert(position: sortedValues.begin(), x: 17); |
115 | sig.connect(slot: emit_int(17), position: boost::signals2::at_front); |
116 | sortedValues.push_back(x: 42); |
117 | sig.connect(slot: emit_int(42)); |
118 | |
119 | sig(); |
120 | std::cout << std::endl; |
121 | |
122 | BOOST_CHECK(valuesOutput == sortedValues); |
123 | BOOST_CHECK(ungrouped1); |
124 | BOOST_CHECK(ungrouped2); |
125 | BOOST_CHECK(ungrouped3); |
126 | |
127 | test_group_compare(); |
128 | } |
129 | |