1// (C) Copyright Eric Niebler 2005.
2// Use, modification and distribution are subject to the
3// Boost Software License, Version 1.0. (See accompanying file
4// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6#include <boost/foreach.hpp>
7#include <boost/test/unit_test.hpp>
8#include <boost/accumulators/accumulators.hpp>
9#include <boost/accumulators/statistics/stats.hpp>
10#include <boost/accumulators/statistics/tail.hpp>
11#include <boost/accumulators/statistics/tail_variate.hpp>
12#include <boost/accumulators/statistics/variates/covariate.hpp>
13
14using namespace boost;
15using namespace unit_test;
16using namespace accumulators;
17
18template<typename Range>
19void check_tail(Range const &rng, char const *expected)
20{
21 BOOST_FOREACH(int i, rng)
22 {
23 if(!*expected)
24 {
25 BOOST_CHECK(false);
26 return;
27 }
28 BOOST_CHECK_EQUAL(i, *expected++);
29 }
30 BOOST_CHECK(!*expected);
31}
32
33///////////////////////////////////////////////////////////////////////////////
34// test_right_tail
35//
36void test_right_tail()
37{
38 accumulator_set<int, stats<tag::tail_weights<right>, tag::tail_variate<int, tag::covariate1, right> >, int > acc(
39 right_tail_cache_size = 4
40 );
41
42 acc(010, weight = 2, covariate1 = 3);
43 check_tail(rng: tail(acc), expected: "\10");
44 check_tail(rng: tail_variate(acc), expected: "\3");
45 check_tail(rng: tail_weights(acc), expected: "\2");
46
47 acc(020, weight = 7, covariate1 = 1);
48 check_tail(rng: tail(acc), expected: "\20\10");
49 check_tail(rng: tail_variate(acc), expected: "\1\3");
50 check_tail(rng: tail_weights(acc), expected: "\7\2");
51
52 acc(014, weight = 6, covariate1 = 4);
53 check_tail(rng: tail(acc), expected: "\20\14\10");
54 check_tail(rng: tail_variate(acc), expected: "\1\4\3");
55 check_tail(rng: tail_weights(acc), expected: "\7\6\2");
56
57 acc(030, weight = 4, covariate1 = 5);
58 check_tail(rng: tail(acc), expected: "\30\20\14\10");
59 check_tail(rng: tail_variate(acc), expected: "\5\1\4\3");
60 check_tail(rng: tail_weights(acc), expected: "\4\7\6\2");
61
62 acc(001, weight = 1, covariate1 = 9);
63 check_tail(rng: tail(acc), expected: "\30\20\14\10");
64 check_tail(rng: tail_variate(acc), expected: "\5\1\4\3");
65 check_tail(rng: tail_weights(acc), expected: "\4\7\6\2");
66
67 acc(011, weight = 3, covariate1 = 7);
68 check_tail(rng: tail(acc), expected: "\30\20\14\11");
69 check_tail(rng: tail_variate(acc), expected: "\5\1\4\7");
70 check_tail(rng: tail_weights(acc), expected: "\4\7\6\3");
71
72}
73
74///////////////////////////////////////////////////////////////////////////////
75// test_left_tail
76//
77void test_left_tail()
78{
79 accumulator_set<int, stats<tag::tail_weights<left>, tag::tail_variate<int, tag::covariate1, left> >, int > acc(
80 left_tail_cache_size = 4
81 );
82
83 acc(010, weight = 2, covariate1 = 3);
84 check_tail(rng: tail(acc), expected: "\10");
85 check_tail(rng: tail_variate(acc), expected: "\3");
86 check_tail(rng: tail_weights(acc), expected: "\2");
87
88 acc(020, weight = 7, covariate1 = 1);
89 check_tail(rng: tail(acc), expected: "\10\20");
90 check_tail(rng: tail_variate(acc), expected: "\3\1");
91 check_tail(rng: tail_weights(acc), expected: "\2\7");
92
93 acc(014, weight = 6, covariate1 = 4);
94 check_tail(rng: tail(acc), expected: "\10\14\20");
95 check_tail(rng: tail_variate(acc), expected: "\3\4\1");
96 check_tail(rng: tail_weights(acc), expected: "\2\6\7");
97
98 acc(030, weight = 4, covariate1 = 5);
99 check_tail(rng: tail(acc), expected: "\10\14\20\30");
100 check_tail(rng: tail_variate(acc), expected: "\3\4\1\5");
101 check_tail(rng: tail_weights(acc), expected: "\2\6\7\4");
102
103 acc(001, weight = 1, covariate1 = 9);
104 check_tail(rng: tail(acc), expected: "\1\10\14\20");
105 check_tail(rng: tail_variate(acc), expected: "\x9\3\4\1");
106 check_tail(rng: tail_weights(acc), expected: "\1\2\6\7");
107
108 acc(011, weight = 3, covariate1 = 7);
109 check_tail(rng: tail(acc), expected: "\1\10\11\14");
110 check_tail(rng: tail_variate(acc), expected: "\x9\3\7\4");
111 check_tail(rng: tail_weights(acc), expected: "\1\2\3\6");
112}
113
114///////////////////////////////////////////////////////////////////////////////
115// init_unit_test_suite
116//
117test_suite* init_unit_test_suite( int argc, char* argv[] )
118{
119 test_suite *test = BOOST_TEST_SUITE("tail test");
120
121 test->add(BOOST_TEST_CASE(&test_right_tail));
122 test->add(BOOST_TEST_CASE(&test_left_tail));
123
124 return test;
125}
126
127

source code of boost/libs/accumulators/test/tail.cpp