1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <database.h>
extern DatabaseConnection* connect_to_customer_database(void);
extern unsigned int get_customer_id_by_name(
DatabaseConnection * const connection, const char * const customer_name);
/* Mock query database function. */
static unsigned int mock_query_database(DatabaseConnection* const connection,
const char * const query_string,
void *** const results) {
(void) connection; /* unused */
(void) query_string; /* unused */
*results = (void **)mock_ptr_type(int *);
return mock_ptr_type(int);
}
/* Mock of the connect to database function. */
DatabaseConnection* connect_to_database(const char * const database_url,
const unsigned int port) {
(void) database_url; /* unused */
(void) port; /* unused */
return (DatabaseConnection*)((size_t)mock());
}
static void test_connect_to_customer_database(void **state) {
(void) state; /* unused */
will_return(connect_to_database, 0x0DA7ABA53);
assert_int_equal((size_t)connect_to_customer_database(), 0x0DA7ABA53);
}
/* This test fails as the mock function connect_to_database() will have no
* value to return. */
#if 0
static void fail_connect_to_customer_database(void **state) {
(void) state; /* unused */
assert_true(connect_to_customer_database() ==
(DatabaseConnection*)0x0DA7ABA53);
}
#endif
static void test_get_customer_id_by_name(void **state) {
DatabaseConnection connection = {
"somedatabase.somewhere.com", 12345678, mock_query_database
};
/* Return a single customer ID when mock_query_database() is called. */
int customer_ids = 543;
int rc;
(void) state; /* unused */
will_return(mock_query_database,
cast_ptr_to_largest_integral_type(&customer_ids));
will_return(mock_query_database, 1);
rc = get_customer_id_by_name(&connection, "john doe");
assert_int_equal(rc, 543);
}
int main(void) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_connect_to_customer_database),
cmocka_unit_test(test_get_customer_id_by_name),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
|
