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b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
7c673cae FG |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) | |
4 | ||
5 | #ifndef BOOST_HANA_TEST_AUTO_GROUP_HPP | |
6 | #define BOOST_HANA_TEST_AUTO_GROUP_HPP | |
7 | ||
8 | #include <boost/hana/assert.hpp> | |
9 | #include <boost/hana/equal.hpp> | |
10 | #include <boost/hana/group.hpp> | |
11 | ||
12 | #include "test_case.hpp" | |
13 | #include <laws/base.hpp> | |
14 | #include <support/equivalence_class.hpp> | |
15 | ||
16 | ||
17 | TestCase test_group{[]{ | |
18 | namespace hana = boost::hana; | |
19 | using hana::test::ct_eq; | |
20 | ||
21 | struct undefined { }; | |
22 | ||
23 | // Test without a custom predicate | |
24 | { | |
25 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
26 | hana::group(MAKE_TUPLE()), | |
27 | MAKE_TUPLE() | |
28 | )); | |
29 | ||
30 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
31 | hana::group(MAKE_TUPLE(ct_eq<0>{})), | |
32 | MAKE_TUPLE( | |
33 | MAKE_TUPLE(ct_eq<0>{})) | |
34 | )); | |
35 | ||
36 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
37 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{})), | |
38 | MAKE_TUPLE( | |
39 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{})) | |
40 | )); | |
41 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
42 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{})), | |
43 | MAKE_TUPLE( | |
44 | MAKE_TUPLE(ct_eq<0>{}), | |
45 | MAKE_TUPLE(ct_eq<1>{})) | |
46 | )); | |
47 | ||
48 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
49 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}, ct_eq<0>{})), | |
50 | MAKE_TUPLE( | |
51 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}, ct_eq<0>{})) | |
52 | )); | |
53 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
54 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}, ct_eq<1>{})), | |
55 | MAKE_TUPLE( | |
56 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}), | |
57 | MAKE_TUPLE(ct_eq<1>{})) | |
58 | )); | |
59 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
60 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<0>{})), | |
61 | MAKE_TUPLE( | |
62 | MAKE_TUPLE(ct_eq<0>{}), | |
63 | MAKE_TUPLE(ct_eq<1>{}), | |
64 | MAKE_TUPLE(ct_eq<0>{})) | |
65 | )); | |
66 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
67 | hana::group(MAKE_TUPLE(ct_eq<1>{}, ct_eq<0>{}, ct_eq<0>{})), | |
68 | MAKE_TUPLE( | |
69 | MAKE_TUPLE(ct_eq<1>{}), | |
70 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{})) | |
71 | )); | |
72 | ||
73 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
74 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}, ct_eq<1>{}, ct_eq<1>{})), | |
75 | MAKE_TUPLE(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}), | |
76 | MAKE_TUPLE(ct_eq<1>{}, ct_eq<1>{})) | |
77 | )); | |
78 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
79 | hana::group(MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}, ct_eq<1>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<2>{}, ct_eq<2>{})), | |
80 | MAKE_TUPLE( | |
81 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<0>{}), | |
82 | MAKE_TUPLE(ct_eq<1>{}, ct_eq<1>{}), | |
83 | MAKE_TUPLE(ct_eq<2>{}, ct_eq<2>{}, ct_eq<2>{})) | |
84 | )); | |
85 | } | |
86 | ||
87 | // Test with a custom predicate | |
88 | { | |
89 | auto a = [](auto z) { return ::equivalence_class(ct_eq<999>{}, z); }; | |
90 | auto b = [](auto z) { return ::equivalence_class(ct_eq<888>{}, z); }; | |
91 | ||
92 | auto pred = [](auto x, auto y) { | |
93 | return hana::equal(x.unwrap, y.unwrap); | |
94 | }; | |
95 | ||
96 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
97 | hana::group(MAKE_TUPLE(), undefined{}), | |
98 | MAKE_TUPLE() | |
99 | )); | |
100 | ||
101 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
102 | hana::group(MAKE_TUPLE(a(ct_eq<0>{})), pred), | |
103 | MAKE_TUPLE( | |
104 | MAKE_TUPLE(a(ct_eq<0>{}))) | |
105 | )); | |
106 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
107 | hana::group(MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), pred), | |
108 | MAKE_TUPLE( | |
109 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}))) | |
110 | )); | |
111 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
112 | hana::group(MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}), a(ct_eq<1>{})), pred), | |
113 | MAKE_TUPLE( | |
114 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), | |
115 | MAKE_TUPLE(a(ct_eq<1>{}))) | |
116 | )); | |
117 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
118 | hana::group(MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}), a(ct_eq<1>{}), b(ct_eq<1>{})), pred), | |
119 | MAKE_TUPLE( | |
120 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), | |
121 | MAKE_TUPLE(a(ct_eq<1>{}), b(ct_eq<1>{}))) | |
122 | )); | |
123 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
124 | hana::group(MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}), a(ct_eq<1>{}), b(ct_eq<1>{}), b(ct_eq<0>{})), pred), | |
125 | MAKE_TUPLE( | |
126 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), | |
127 | MAKE_TUPLE(a(ct_eq<1>{}), b(ct_eq<1>{})), | |
128 | MAKE_TUPLE(b(ct_eq<0>{}))) | |
129 | )); | |
130 | ||
131 | // Test group.by syntactic sugar | |
132 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
133 | hana::group.by(pred, MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}), a(ct_eq<1>{}), b(ct_eq<1>{}), b(ct_eq<0>{}))), | |
134 | MAKE_TUPLE( | |
135 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), | |
136 | MAKE_TUPLE(a(ct_eq<1>{}), b(ct_eq<1>{})), | |
137 | MAKE_TUPLE(b(ct_eq<0>{}))) | |
138 | )); | |
139 | ||
140 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
141 | hana::group.by(pred)(MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{}), a(ct_eq<1>{}), b(ct_eq<1>{}), b(ct_eq<0>{}))), | |
142 | MAKE_TUPLE( | |
143 | MAKE_TUPLE(a(ct_eq<0>{}), b(ct_eq<0>{})), | |
144 | MAKE_TUPLE(a(ct_eq<1>{}), b(ct_eq<1>{})), | |
145 | MAKE_TUPLE(b(ct_eq<0>{}))) | |
146 | )); | |
147 | } | |
148 | }}; | |
149 | ||
150 | #endif // !BOOST_HANA_TEST_AUTO_GROUP_HPP |