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ptid-selftests.c
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1 /* Self tests for ptid_t for GDB, the GNU debugger.
2
3 Copyright (C) 2017-2018 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #include "defs.h"
21 #include "common/ptid.h"
22 #include <type_traits>
23
24 namespace selftests {
25 namespace ptid {
26
27 /* Check that the ptid_t class is POD.
28
29 This is a requirement for as long as we have ptids embedded in
30 structures allocated with malloc. */
31
32 static_assert (std::is_pod<ptid_t>::value, "ptid_t is POD");
33
34 /* We want to avoid implicit conversion from int to ptid_t. */
35
36 static_assert (!std::is_convertible<int, ptid_t>::value,
37 "constructor is explicit");
38
39 /* Build some useful ptids. */
40
41 static constexpr ptid_t pid = ptid_t (1);
42 static constexpr ptid_t lwp = ptid_t (1, 2, 0);
43 static constexpr ptid_t tid = ptid_t (1, 0, 2);
44 static constexpr ptid_t both = ptid_t (1, 2, 2);
45
46 /* Build some constexpr version of null_ptid and minus_one_ptid to use in
47 static_assert. Once the real ones are made constexpr, we can get rid of
48 these. */
49
50 static constexpr ptid_t null = ptid_t::make_null ();
51 static constexpr ptid_t minus_one = ptid_t::make_minus_one ();
52
53 /* Verify pid. */
54
55 static_assert (pid.pid () == 1, "pid's pid is right");
56 static_assert (lwp.pid () == 1, "lwp's pid is right");
57 static_assert (tid.pid () == 1, "tid's pid is right");
58 static_assert (both.pid () == 1, "both's pid is right");
59
60 /* Verify lwp_p. */
61
62 static_assert (!pid.lwp_p (), "pid's lwp_p is right");
63 static_assert (lwp.lwp_p (), "lwp's lwp_p is right");
64 static_assert (!tid.lwp_p (), "tid's lwp_p is right");
65 static_assert (both.lwp_p (), "both's lwp_p is right");
66
67 /* Verify lwp. */
68
69 static_assert (pid.lwp () == 0, "pid's lwp is right");
70 static_assert (lwp.lwp () == 2, "lwp's lwp is right");
71 static_assert (tid.lwp () == 0, "tid's lwp is right");
72 static_assert (both.lwp () == 2, "both's lwp is right");
73
74 /* Verify tid_p. */
75
76 static_assert (!pid.tid_p (), "pid's tid_p is right");
77 static_assert (!lwp.tid_p (), "lwp's tid_p is right");
78 static_assert (tid.tid_p (), "tid's tid_p is right");
79 static_assert (both.tid_p (), "both's tid_p is right");
80
81 /* Verify tid. */
82
83 static_assert (pid.tid () == 0, "pid's tid is right");
84 static_assert (lwp.tid () == 0, "lwp's tid is right");
85 static_assert (tid.tid () == 2, "tid's tid is right");
86 static_assert (both.tid () == 2, "both's tid is right");
87
88 /* Verify is_pid. */
89
90 static_assert (pid.is_pid (), "pid is a pid");
91 static_assert (!lwp.is_pid (), "lwp isn't a pid");
92 static_assert (!tid.is_pid (), "tid isn't a pid");
93 static_assert (!both.is_pid (), "both isn't a pid");
94 static_assert (!null.is_pid (), "null ptid isn't a pid");
95 static_assert (!minus_one.is_pid (), "minus one ptid isn't a pid");
96
97 /* Verify operator ==. */
98
99 static_assert (pid == ptid_t (1, 0, 0), "pid operator== is right");
100 static_assert (lwp == ptid_t (1, 2, 0), "lwp operator== is right");
101 static_assert (tid == ptid_t (1, 0, 2), "tid operator== is right");
102 static_assert (both == ptid_t (1, 2, 2), "both operator== is right");
103
104 /* Verify operator !=. */
105
106 static_assert (pid != ptid_t (2, 0, 0), "pid isn't equal to a different pid");
107 static_assert (pid != lwp, "pid isn't equal to one of its thread");
108 static_assert (lwp != tid, "lwp isn't equal to tid");
109 static_assert (both != lwp, "both isn't equal to lwp");
110 static_assert (both != tid, "both isn't equal to tid");
111
112 /* Verify matches against minus_one. */
113
114 static_assert (pid.matches (minus_one), "pid matches minus one");
115 static_assert (lwp.matches (minus_one), "lwp matches minus one");
116 static_assert (tid.matches (minus_one), "tid matches minus one");
117 static_assert (both.matches (minus_one), "both matches minus one");
118
119 /* Verify matches against pid. */
120
121 static_assert (pid.matches (pid), "pid matches pid");
122 static_assert (lwp.matches (pid), "lwp matches pid");
123 static_assert (tid.matches (pid), "tid matches pid");
124 static_assert (both.matches (pid), "both matches pid");
125 static_assert (!ptid_t (2, 0, 0).matches (pid), "other pid doesn't match pid");
126 static_assert (!ptid_t (2, 2, 0).matches (pid), "other lwp doesn't match pid");
127 static_assert (!ptid_t (2, 0, 2).matches (pid), "other tid doesn't match pid");
128 static_assert (!ptid_t (2, 2, 2).matches (pid), "other both doesn't match pid");
129
130 /* Verify matches against exact matches. */
131
132 static_assert (!pid.matches (lwp), "pid doesn't match lwp");
133 static_assert (lwp.matches (lwp), "lwp matches lwp");
134 static_assert (!tid.matches (lwp), "tid doesn't match lwp");
135 static_assert (!both.matches (lwp), "both doesn't match lwp");
136 static_assert (!ptid_t (2, 2, 0).matches (lwp), "other lwp doesn't match lwp");
137
138 static_assert (!pid.matches (tid), "pid doesn't match tid");
139 static_assert (!lwp.matches (tid), "lwp doesn't match tid");
140 static_assert (tid.matches (tid), "tid matches tid");
141 static_assert (!both.matches (tid), "both doesn't match tid");
142 static_assert (!ptid_t (2, 0, 2).matches (tid), "other tid doesn't match tid");
143
144 static_assert (!pid.matches (both), "pid doesn't match both");
145 static_assert (!lwp.matches (both), "lwp doesn't match both");
146 static_assert (!tid.matches (both), "tid doesn't match both");
147 static_assert (both.matches (both), "both matches both");
148 static_assert (!ptid_t (2, 2, 2).matches (both),
149 "other both doesn't match both");
150
151
152 } /* namespace ptid */
153 } /* namespace selftests */
ptid_t::pid
constexpr int pid() const
Definition: ptid.h:53
ptid_t::lwp
constexpr long lwp() const
Definition: ptid.h:63
selftests::ptid::tid
static constexpr ptid_t tid
Definition: ptid-selftests.c:43
selftests::ptid::pid
static constexpr ptid_t pid
Definition: ptid-selftests.c:41
ptid_t::matches
constexpr bool matches(const ptid_t &filter) const
Definition: ptid.h:112
defs.h
selftests
Definition: selftest.c:25
ptid_t::tid_p
constexpr bool tid_p() const
Definition: ptid.h:68
ptid_t
Definition: ptid.h:35
selftests::ptid::minus_one
static constexpr ptid_t minus_one
Definition: ptid-selftests.c:51
ptid_t::make_null
static constexpr ptid_t make_null()
Definition: ptid.h:127
selftests::ptid::null
static constexpr ptid_t null
Definition: ptid-selftests.c:50
ptid_t::lwp_p
constexpr bool lwp_p() const
Definition: ptid.h:58
selftests::ptid::lwp
static constexpr ptid_t lwp
Definition: ptid-selftests.c:42
ptid_t::is_pid
constexpr bool is_pid() const
Definition: ptid.h:80
ptid.h
ptid_t::tid
constexpr long tid() const
Definition: ptid.h:73
ptid_t::make_minus_one
static constexpr ptid_t make_minus_one()
Definition: ptid.h:132
selftests::ptid::both
static constexpr ptid_t both
Definition: ptid-selftests.c:44