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1 /*
2  * This file is part of the libsigrok project.
3  *
4  * Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19
20 #include <config.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <check.h>
24 #include <libsigrok/libsigrok.h>
25 #include "lib.h"
26
27 /* Test lots of triggers/stages/matches/channels */
28 #define NUM_TRIGGERS 70
29 #define NUM_STAGES 30
30 #define NUM_MATCHES 70
31 #define NUM_CHANNELS NUM_MATCHES
32
33 /* Check whether creating/freeing triggers with valid names works. */
34 START_TEST(test_trigger_new_free)
35 {
36         int i;
37         struct sr_trigger *t[NUM_TRIGGERS];
38         char name[10];
39
40         /* Create a few triggers with a valid name. */
41         for (i = 0; i < NUM_TRIGGERS; i++) {
42                 sprintf((char *)&name, "T%d", i);
43                 t[i] = sr_trigger_new((const char *)&name);
44                 fail_unless(t[i] != NULL);
45                 fail_unless(!strcmp(t[i]->name, (const char *)&name));
46                 fail_unless(t[i]->stages == NULL);
47         }
48
49         /* Free the triggers again (must not segfault). */
50         for (i = 0; i < NUM_TRIGGERS; i++)
51                 sr_trigger_free(t[i]);
52 }
53 END_TEST
54
55 /* Check whether creating/freeing triggers with NULL names works. */
56 START_TEST(test_trigger_new_free_null)
57 {
58         int i;
59         struct sr_trigger *t[NUM_TRIGGERS];
60
61         /* Create a few triggers with a NULL name (which is allowed). */
62         for (i = 0; i < NUM_TRIGGERS; i++) {
63                 t[i] = sr_trigger_new(NULL);
64                 fail_unless(t[i] != NULL);
65                 fail_unless(t[i]->name == NULL);
66                 fail_unless(t[i]->stages == NULL);
67         }
68
69         /* Free the triggers again (must not segfault). */
70         for (i = 0; i < NUM_TRIGGERS; i++)
71                 sr_trigger_free(t[i]);
72 }
73 END_TEST
74
75 /* Check whether sr_trigger_free(NULL) works without segfaulting. */
76 START_TEST(test_trigger_free_null)
77 {
78         sr_trigger_free(NULL);
79 }
80 END_TEST
81
82 /* Check whether creating/freeing triggers with stages works. */
83 START_TEST(test_trigger_stage_add)
84 {
85         int i, j;
86         struct sr_trigger *t[NUM_TRIGGERS];
87         struct sr_trigger_stage *s[NUM_STAGES];
88
89         /* Create a few triggers with a valid name. */
90         for (i = 0; i < NUM_TRIGGERS; i++) {
91                 t[i] = sr_trigger_new("T");
92
93                 /* Add a bunch of trigger stages to this trigger. */
94                 for (j = 0; j < NUM_STAGES; j++) {
95                         s[j] = sr_trigger_stage_add(t[i]);
96                         fail_unless(s[j] != NULL);
97                         fail_unless(t[i]->stages != NULL);
98                         fail_unless((int)g_slist_length(t[i]->stages) == (j + 1));
99                         fail_unless(s[j]->stage == j);
100                         fail_unless(s[j]->matches == NULL);
101                 }
102         }
103
104         /* Free the triggers again (must not segfault). */
105         for (i = 0; i < NUM_TRIGGERS; i++)
106                 sr_trigger_free(t[i]);
107 }
108 END_TEST
109
110 /* Check whether creating NULL trigger stages fails (as it should). */
111 START_TEST(test_trigger_stage_add_null)
112 {
113         /* Should not segfault, but rather return NULL. */
114         fail_unless(sr_trigger_stage_add(NULL) == NULL);
115 }
116 END_TEST
117
118 /* Check whether creating/freeing triggers with matches works. */
119 START_TEST(test_trigger_match_add)
120 {
121         int i, j, k, tm, ret;
122         struct sr_trigger *t[NUM_TRIGGERS];
123         struct sr_trigger_stage *s[NUM_STAGES];
124         struct sr_channel *chl[NUM_CHANNELS];
125         struct sr_channel *cha[NUM_CHANNELS];
126         char name[10];
127
128         /* Create a bunch of logic and analog channels. */
129         for (i = 0; i < NUM_CHANNELS; i++) {
130                 sprintf((char *)&name, "L%d", i);
131                 chl[i] = g_malloc0(sizeof(struct sr_channel));
132                 chl[i]->index = i;
133                 chl[i]->type = SR_CHANNEL_LOGIC;
134                 chl[i]->enabled = TRUE;
135                 chl[i]->name = g_strdup((const char *)&name);
136
137                 sprintf((char *)&name, "A%d", i);
138                 cha[i] = g_malloc0(sizeof(struct sr_channel));
139                 cha[i]->index = i;
140                 cha[i]->type = SR_CHANNEL_ANALOG;
141                 cha[i]->enabled = TRUE;
142                 cha[i]->name = g_strdup((const char *)&name);
143         }
144
145         /* Create a few triggers with a valid name. */
146         for (i = 0; i < NUM_TRIGGERS; i++) {
147                 t[i] = sr_trigger_new("T");
148
149                 /* Add a bunch of trigger stages to this trigger. */
150                 for (j = 0; j < NUM_STAGES; j++) {
151                         s[j] = sr_trigger_stage_add(t[i]);
152
153                         /* Add a bunch of matches to this stage. */
154                         for (k = 0; k < NUM_MATCHES; k++) {
155                                 /* Logic channel matches. */
156                                 tm = 1 + (k % 5); /* *_ZERO .. *_EDGE */
157                                 ret = sr_trigger_match_add(s[j], chl[k], tm, 0);
158                                 fail_unless(ret == SR_OK);
159
160                                 /* Analog channel matches. */
161                                 tm = 3 + (k % 4); /* *_RISING .. *_UNDER */
162                                 ret = sr_trigger_match_add(s[j], cha[k],
163                                         tm, ((rand() % 500) - 500) * 1.739);
164                                 fail_unless(ret == SR_OK);
165                         }
166                 }
167         }
168
169         /* Free the triggers again (must not segfault). */
170         for (i = 0; i < NUM_TRIGGERS; i++)
171                 sr_trigger_free(t[i]);
172
173         /* Free the channels. */
174         for (i = 0; i < NUM_CHANNELS; i++) {
175                 g_free(chl[i]->name);
176                 g_free(chl[i]);
177                 g_free(cha[i]->name);
178                 g_free(cha[i]);
179         }
180 }
181 END_TEST
182
183 /* Check whether trigger_match_add() copes well with incorrect input. */
184 START_TEST(test_trigger_match_add_bogus)
185 {
186         int ret;
187         struct sr_trigger *t;
188         struct sr_trigger_stage *s, *sl;
189         struct sr_channel *chl, *cha;
190
191         t = sr_trigger_new("T");
192         s = sr_trigger_stage_add(t);
193         chl = g_malloc0(sizeof(struct sr_channel));
194         chl->index = 0;
195         chl->type = SR_CHANNEL_LOGIC;
196         chl->enabled = TRUE;
197         chl->name = g_strdup("L0");
198         cha = g_malloc0(sizeof(struct sr_channel));
199         cha->index = 1;
200         cha->type = SR_CHANNEL_ANALOG;
201         cha->enabled = TRUE;
202         cha->name = g_strdup("A0");
203
204         /* Initially we have no matches at all. */
205         sl = t->stages->data;
206         fail_unless(g_slist_length(sl->matches) == 0);
207
208         /* NULL stage */
209         ret = sr_trigger_match_add(NULL, chl, SR_TRIGGER_ZERO, 0);
210         fail_unless(ret == SR_ERR_ARG);
211         fail_unless(g_slist_length(sl->matches) == 0);
212
213         /* NULL channel */
214         ret = sr_trigger_match_add(s, NULL, SR_TRIGGER_ZERO, 0);
215         fail_unless(ret == SR_ERR_ARG);
216         fail_unless(g_slist_length(sl->matches) == 0);
217
218         /* Invalid trigger matches for logic channels. */
219         ret = sr_trigger_match_add(s, chl, SR_TRIGGER_OVER, 0);
220         fail_unless(ret == SR_ERR_ARG);
221         fail_unless(g_slist_length(sl->matches) == 0);
222         ret = sr_trigger_match_add(s, chl, SR_TRIGGER_UNDER, 0);
223         fail_unless(ret == SR_ERR_ARG);
224         fail_unless(g_slist_length(sl->matches) == 0);
225
226         /* Invalid trigger matches for analog channels. */
227         ret = sr_trigger_match_add(s, cha, SR_TRIGGER_ZERO, 9.4);
228         fail_unless(ret == SR_ERR_ARG);
229         fail_unless(g_slist_length(sl->matches) == 0);
230         ret = sr_trigger_match_add(s, cha, SR_TRIGGER_ONE, -9.4);
231         fail_unless(ret == SR_ERR_ARG);
232         fail_unless(g_slist_length(sl->matches) == 0);
233
234         /* Invalid channel type. */
235         chl->type = -1;
236         ret = sr_trigger_match_add(s, chl, SR_TRIGGER_ZERO, 0);
237         fail_unless(ret == SR_ERR_ARG);
238         fail_unless(g_slist_length(sl->matches) == 0);
239         chl->type = 270;
240         ret = sr_trigger_match_add(s, chl, SR_TRIGGER_ZERO, 0);
241         fail_unless(ret == SR_ERR_ARG);
242         fail_unless(g_slist_length(sl->matches) == 0);
243
244         sr_trigger_free(t);
245         g_free(chl->name);
246         g_free(chl);
247         g_free(cha->name);
248         g_free(cha);
249 }
250 END_TEST
251
252 Suite *suite_trigger(void)
253 {
254         Suite *s;
255         TCase *tc;
256
257         s = suite_create("trigger");
258
259         tc = tcase_create("new_free");
260         tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
261         tcase_add_test(tc, test_trigger_new_free);
262         tcase_add_test(tc, test_trigger_new_free_null);
263         tcase_add_test(tc, test_trigger_free_null);
264         suite_add_tcase(s, tc);
265
266         tc = tcase_create("stage");
267         tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
268         tcase_add_test(tc, test_trigger_stage_add);
269         tcase_add_test(tc, test_trigger_stage_add_null);
270         suite_add_tcase(s, tc);
271
272         tc = tcase_create("match");
273         tcase_set_timeout(tc, 0);
274         tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
275         tcase_add_test(tc, test_trigger_match_add);
276         tcase_add_test(tc, test_trigger_match_add_bogus);
277         suite_add_tcase(s, tc);
278
279         return s;
280 }