1/* Self tests for ptid_t for GDB, the GNU debugger.
2
3   Copyright (C) 2017-2020 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 "gdbsupport/ptid.h"
22#include <type_traits>
23
24namespace selftests {
25namespace 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
32static_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
36static_assert (!std::is_convertible<int, ptid_t>::value,
37	       "constructor is explicit");
38
39/* Build some useful ptids.  */
40
41static constexpr ptid_t pid = ptid_t (1);
42static constexpr ptid_t lwp = ptid_t (1, 2, 0);
43static constexpr ptid_t tid = ptid_t (1, 0, 2);
44static 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
50static constexpr ptid_t null = ptid_t::make_null ();
51static constexpr ptid_t minus_one = ptid_t::make_minus_one ();
52
53/* Verify pid.  */
54
55static_assert (pid.pid () == 1, "pid's pid is right");
56static_assert (lwp.pid () == 1, "lwp's pid is right");
57static_assert (tid.pid () == 1, "tid's pid is right");
58static_assert (both.pid () == 1, "both's pid is right");
59
60/* Verify lwp_p.  */
61
62static_assert (!pid.lwp_p (), "pid's lwp_p is right");
63static_assert (lwp.lwp_p (), "lwp's lwp_p is right");
64static_assert (!tid.lwp_p (), "tid's lwp_p is right");
65static_assert (both.lwp_p (), "both's lwp_p is right");
66
67/* Verify lwp.  */
68
69static_assert (pid.lwp () == 0, "pid's lwp is right");
70static_assert (lwp.lwp () == 2, "lwp's lwp is right");
71static_assert (tid.lwp () == 0, "tid's lwp is right");
72static_assert (both.lwp () == 2, "both's lwp is right");
73
74/* Verify tid_p.  */
75
76static_assert (!pid.tid_p (), "pid's tid_p is right");
77static_assert (!lwp.tid_p (), "lwp's tid_p is right");
78static_assert (tid.tid_p (), "tid's tid_p is right");
79static_assert (both.tid_p (), "both's tid_p is right");
80
81/* Verify tid.  */
82
83static_assert (pid.tid () == 0, "pid's tid is right");
84static_assert (lwp.tid () == 0, "lwp's tid is right");
85static_assert (tid.tid () == 2, "tid's tid is right");
86static_assert (both.tid () == 2, "both's tid is right");
87
88/* Verify is_pid.  */
89
90static_assert (pid.is_pid (), "pid is a pid");
91static_assert (!lwp.is_pid (), "lwp isn't a pid");
92static_assert (!tid.is_pid (), "tid isn't a pid");
93static_assert (!both.is_pid (), "both isn't a pid");
94static_assert (!null.is_pid (), "null ptid isn't a pid");
95static_assert (!minus_one.is_pid (), "minus one ptid isn't a pid");
96
97/* Verify operator ==.  */
98
99static_assert (pid == ptid_t (1, 0, 0), "pid operator== is right");
100static_assert (lwp == ptid_t (1, 2, 0), "lwp operator== is right");
101static_assert (tid == ptid_t (1, 0, 2), "tid operator== is right");
102static_assert (both == ptid_t (1, 2, 2), "both operator== is right");
103
104/* Verify operator !=.  */
105
106static_assert (pid != ptid_t (2, 0, 0), "pid isn't equal to a different pid");
107static_assert (pid != lwp, "pid isn't equal to one of its thread");
108static_assert (lwp != tid, "lwp isn't equal to tid");
109static_assert (both != lwp, "both isn't equal to lwp");
110static_assert (both != tid, "both isn't equal to tid");
111
112/* Verify matches against minus_one.  */
113
114static_assert (pid.matches (minus_one), "pid matches minus one");
115static_assert (lwp.matches (minus_one), "lwp matches minus one");
116static_assert (tid.matches (minus_one), "tid matches minus one");
117static_assert (both.matches (minus_one), "both matches minus one");
118
119/* Verify matches against pid.  */
120
121static_assert (pid.matches (pid), "pid matches pid");
122static_assert (lwp.matches (pid), "lwp matches pid");
123static_assert (tid.matches (pid), "tid matches pid");
124static_assert (both.matches (pid), "both matches pid");
125static_assert (!ptid_t (2, 0, 0).matches (pid), "other pid doesn't match pid");
126static_assert (!ptid_t (2, 2, 0).matches (pid), "other lwp doesn't match pid");
127static_assert (!ptid_t (2, 0, 2).matches (pid), "other tid doesn't match pid");
128static_assert (!ptid_t (2, 2, 2).matches (pid), "other both doesn't match pid");
129
130/* Verify matches against exact matches.  */
131
132static_assert (!pid.matches (lwp), "pid doesn't match lwp");
133static_assert (lwp.matches (lwp), "lwp matches lwp");
134static_assert (!tid.matches (lwp), "tid doesn't match lwp");
135static_assert (!both.matches (lwp), "both doesn't match lwp");
136static_assert (!ptid_t (2, 2, 0).matches (lwp), "other lwp doesn't match lwp");
137
138static_assert (!pid.matches (tid), "pid doesn't match tid");
139static_assert (!lwp.matches (tid), "lwp doesn't match tid");
140static_assert (tid.matches (tid), "tid matches tid");
141static_assert (!both.matches (tid), "both doesn't match tid");
142static_assert (!ptid_t (2, 0, 2).matches (tid), "other tid doesn't match tid");
143
144static_assert (!pid.matches (both), "pid doesn't match both");
145static_assert (!lwp.matches (both), "lwp doesn't match both");
146static_assert (!tid.matches (both), "tid doesn't match both");
147static_assert (both.matches (both), "both matches both");
148static_assert (!ptid_t (2, 2, 2).matches (both),
149	       "other both doesn't match both");
150
151
152} /* namespace ptid */
153} /* namespace selftests */
154