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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* Copyright (C) 2020-2021 Tomasz Kramkowski <tk@the-tk.com>
* SPDX-License-Identifier: MIT
*/
#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "pack.h"
typedef bool test_func(void);
struct test {
test_func *func;
char *desc;
};
#define TEST(name, desc) static bool test_##name(void); \
static struct test testinfo_##name \
__attribute__((__section__("tests"))) \
__attribute__((__used__)) = \
{ test_##name, desc }; \
static bool test_##name(void)
#define DATA(...) (unsigned char []){ __VA_ARGS__ }
#define CHECK(test) if (!(test)) { puts("! " #test); return false; }
#define CHECK_UNPACK(data, fmt, ...) do { \
enum pack_status CHECK_UNPACK_s = unpack(data, sizeof (data), fmt, __VA_ARGS__); \
if (CHECK_UNPACK_s != PACK_OK) { \
printf(__FILE__ ":%d unpack(" #data ", " #fmt ", ...) -> %s (%d)\n", __LINE__, pack_strerror(CHECK_UNPACK_s), CHECK_UNPACK_s); \
return false; \
} \
} while (0)
#define CHECK_EQUAL(f, a, b) if (a != b) { printf(__FILE__ ":%d %"f" != %"f"\n", __LINE__, a, b); return false; }
#define CHECK_PACK(dest, fmt, ...) do { \
enum pack_status CHECK_PACK_s = pack(dest, sizeof (dest), fmt, __VA_ARGS__); \
if (CHECK_PACK_s != PACK_OK) { \
printf(__FILE__ ":%d pack(%p, %zu, " #fmt ", ...) -> %s (%d)\n", __LINE__, (void *)(dest), sizeof (dest), pack_strerror(CHECK_PACK_s), CHECK_PACK_s); \
return false; \
} \
} while (0)
#define CHECK_BUFEQUAL(a, b) \
static_assert(sizeof (a) == sizeof (b), "CHECK_BUFEQUAL - buffer sizes don't match"); \
if (!do_check_bufequal(__FILE__, __LINE__, (a), (b), sizeof (a))) return false;
static bool do_check_bufequal(const char *file, int line, void *a_, void *b_, size_t s)
{
unsigned char *a = a_, *b = b_;
bool mismatch = false;
size_t start, end;
for (size_t i = 0; i < s; i++) {
if (a[i] == b[i]) continue;
if (!mismatch) {
start = i;
mismatch = true;
}
end = i + 1;
}
if (!mismatch) return true;
if (start > 0) start--;
if (end < s) end++;
printf("%s:%d buffers unequal\n idx", file, line);
for (size_t i = start; i < end; i++) printf(" %02zu", i);
printf("\n a =");
for (size_t i = start; i < end; i++) printf(" %02x", a[i]);
printf("\n b =");
for (size_t i = start; i < end; i++) printf(" %02x", b[i]);
putchar('\n');
return false;
}
// @BUILD_DEP test.inc
#include "test.inc"
TEST(unpack_simple0_float, "unpack simple float")
{
float v[1] = { __LINE__ };
CHECK_UNPACK(DATA(0x00, 0x00, 0x00, 0x00), "f", &v);
CHECK_EQUAL("f", v[0], 0.0f);
CHECK_UNPACK(DATA(0x3f, 0x80, 0x00, 0x00), "f", &v);
CHECK_EQUAL("f", v[0], 1.0f);
CHECK_UNPACK(DATA(0x41, 0x00, 0x00, 0x00), "f", &v);
CHECK_EQUAL("f", v[0], 8.0f);
return true;
}
TEST(unpack_simple0_double, "unpack simple double")
{
double v[1] = { __LINE__ };
CHECK_UNPACK(DATA(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), "d", &v);
CHECK_EQUAL("f", v[0], 0.0f);
CHECK_UNPACK(DATA(0x3f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), "d", &v);
CHECK_EQUAL("f", v[0], 1.0f);
CHECK_UNPACK(DATA(0x40, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), "d", &v);
CHECK_EQUAL("f", v[0], 8.0f);
return true;
}
TEST(unpack_simple_padding, "unpack simple padding")
{
struct {
int i;
unsigned char c;
float f;
} v = { __LINE__, __LINE__ + 1, __LINE__ + 2 };
CHECK_UNPACK(DATA(0xff, 0x85,
0x00, 0x00, 0x00,
0x16,
0x00, 0x00,
0x40, 0x44, 0x58, 0x00),
">i3xBxxf", &v.i, &v.c, &v.f);
CHECK_EQUAL("d", v.i, -123);
CHECK_EQUAL("d", v.c, 22);
CHECK_EQUAL("f", v.f, 0x1.88bp+1);
return true;
}
TEST(pack_simple_general, "pack simple general")
{
unsigned char b[12] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
CHECK_PACK(b, ">ixxxBxxl", -123, 22, -12648430l);
CHECK_BUFEQUAL(b, DATA(0xff, 0x85,
0x00, 0x00, 0x00,
0x16,
0x00, 0x00,
0xff, 0x3f, 0x00, 0x12));
return true;
}
int main(void)
{
extern struct test __start_tests, __stop_tests;
pack_trace = PACK_TRACE_OFF;
for (struct test *t = &__start_tests; t < &__stop_tests; t++) {
if (t->func()) {
printf(" OK %s\n", t->desc);
continue;
}
pack_trace = PACK_TRACE_ALL;
fprintf(stderr, ">>> Test failure trace for '%s'\n", t->desc);
t->func();
fprintf(stderr, "<<<\n");
pack_trace = PACK_TRACE_OFF;
printf("FAIL %s\n", t->desc);
}
}
|
