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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
|
/*
* Copyright (c) 2020, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/ByteBuffer.h>
#include <AK/Random.h>
#include <AK/StringBuilder.h>
#include <ctype.h>
#include <inttypes.h>
#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
template<typename TArg>
struct Testcase {
char const* dest;
size_t dest_n;
char const* fmt;
const TArg arg;
int expected_return;
char const* dest_expected;
size_t dest_expected_n; // == dest_n
};
static DeprecatedString show(ByteBuffer const& buf)
{
StringBuilder builder;
for (size_t i = 0; i < buf.size(); ++i) {
builder.appendff("{:02x}", buf[i]);
}
builder.append(' ');
builder.append('(');
for (size_t i = 0; i < buf.size(); ++i) {
if (isprint(buf[i]))
builder.append(buf[i]);
else
builder.append('_');
}
builder.append(')');
return builder.to_deprecated_string();
}
template<typename TArg>
static bool test_single(Testcase<TArg> const& testcase)
{
constexpr size_t SANDBOX_CANARY_SIZE = 8;
// Preconditions:
if (testcase.dest_n != testcase.dest_expected_n) {
warnln("dest length {} != expected dest length {}? Check testcase! (Probably miscounted.)", testcase.dest_n, testcase.dest_expected_n);
return false;
}
// Setup
ByteBuffer actual = ByteBuffer::create_uninitialized(SANDBOX_CANARY_SIZE + testcase.dest_n + SANDBOX_CANARY_SIZE).release_value();
fill_with_random(actual.data(), actual.size());
ByteBuffer expected = actual;
VERIFY(actual.offset_pointer(0) != expected.offset_pointer(0));
actual.overwrite(SANDBOX_CANARY_SIZE, testcase.dest, testcase.dest_n);
expected.overwrite(SANDBOX_CANARY_SIZE, testcase.dest_expected, testcase.dest_expected_n);
// "unsigned char" != "char", so we have to convince the compiler to allow this.
char* dst = reinterpret_cast<char*>(actual.offset_pointer(SANDBOX_CANARY_SIZE));
// The actual call:
int actual_return = snprintf(dst, testcase.dest_n, testcase.fmt, testcase.arg);
// Checking the results:
bool return_ok = actual_return == testcase.expected_return;
bool canary_1_ok = MUST(actual.slice(0, SANDBOX_CANARY_SIZE)) == MUST(expected.slice(0, SANDBOX_CANARY_SIZE));
bool main_ok = MUST(actual.slice(SANDBOX_CANARY_SIZE, testcase.dest_n)) == MUST(expected.slice(SANDBOX_CANARY_SIZE, testcase.dest_n));
bool canary_2_ok = MUST(actual.slice(SANDBOX_CANARY_SIZE + testcase.dest_n, SANDBOX_CANARY_SIZE)) == MUST(expected.slice(SANDBOX_CANARY_SIZE + testcase.dest_n, SANDBOX_CANARY_SIZE));
bool buf_ok = actual == expected;
// Evaluate gravity:
if (buf_ok && (!canary_1_ok || !main_ok || !canary_2_ok)) {
warnln("Internal error! ({} != {} | {} | {})", buf_ok, canary_1_ok, main_ok, canary_2_ok);
buf_ok = false;
}
if (!canary_1_ok) {
warnln("Canary 1 overwritten: Expected {}\n"
" instead got {}",
show(MUST(expected.slice(0, SANDBOX_CANARY_SIZE))),
show(MUST(actual.slice(0, SANDBOX_CANARY_SIZE))));
}
if (!main_ok) {
warnln("Wrong output: Expected {}\n"
" instead, got {}",
show(MUST(expected.slice(SANDBOX_CANARY_SIZE, testcase.dest_n))),
show(MUST(actual.slice(SANDBOX_CANARY_SIZE, testcase.dest_n))));
}
if (!canary_2_ok) {
warnln("Canary 2 overwritten: Expected {}\n"
" instead, got {}",
show(MUST(expected.slice(SANDBOX_CANARY_SIZE + testcase.dest_n, SANDBOX_CANARY_SIZE))),
show(MUST(actual.slice(SANDBOX_CANARY_SIZE + testcase.dest_n, SANDBOX_CANARY_SIZE))));
}
if (!return_ok) {
warnln("Wrong return value: Expected {}, got {} instead!", testcase.expected_return, actual_return);
}
return buf_ok && return_ok;
}
// Drop the NUL terminator added by the C++ compiler.
#define LITERAL(x) x, (sizeof(x) - 1)
static char const* const POISON = (char const*)1;
TEST_CASE(golden_path)
{
EXPECT(test_single<char const*>({ LITERAL("Hello World!\0\0\0"), "Hello Friend!", POISON, 13, LITERAL("Hello Friend!\0\0") }));
EXPECT(test_single<char const*>({ LITERAL("Hello World!\0\0\0"), "Hello %s!", "Friend", 13, LITERAL("Hello Friend!\0\0") }));
EXPECT(test_single<char const*>({ LITERAL("aaaaaaaaaa"), "whf", POISON, 3, LITERAL("whf\0aaaaaa") }));
EXPECT(test_single<char const*>({ LITERAL("aaaaaaaaaa"), "w%sf", "h", 3, LITERAL("whf\0aaaaaa") }));
}
TEST_CASE(border_cases)
{
EXPECT(test_single<char const*>({ LITERAL("Hello World!\0\0"), "Hello Friend!", POISON, 13, LITERAL("Hello Friend!\0") }));
EXPECT(test_single<char const*>({ LITERAL("AAAA"), "whf", POISON, 3, LITERAL("whf\0") }));
EXPECT(test_single<char const*>({ LITERAL("AAAA"), "%s", "whf", 3, LITERAL("whf\0") }));
}
TEST_CASE(too_long)
{
EXPECT(test_single<char const*>({ LITERAL("Hello World!\0"), "Hello Friend!", POISON, 13, LITERAL("Hello Friend\0") }));
EXPECT(test_single<char const*>({ LITERAL("Hello World!\0"), "This source is %s too long!", "just *way*", 35, LITERAL("This source \0") }));
EXPECT(test_single<char const*>({ LITERAL("x"), "This source is %s too long!", "just *way*", 35, LITERAL("\0") }));
}
TEST_CASE(special_cases)
{
EXPECT(test_single<char const*>({ LITERAL(""), "Hello Friend!", POISON, 13, LITERAL("") }));
EXPECT_EQ(snprintf(nullptr, 0, "Hello, friend!"), 14);
EXPECT(test_single<char const*>({ LITERAL(""), "", POISON, 0, LITERAL("") }));
EXPECT(test_single<char const*>({ LITERAL("x"), "", POISON, 0, LITERAL("\0") }));
EXPECT(test_single<char const*>({ LITERAL("xx"), "", POISON, 0, LITERAL("\0x") }));
EXPECT(test_single<char const*>({ LITERAL("xxx"), "", POISON, 0, LITERAL("\0xx") }));
EXPECT(test_single<char const*>({ LITERAL(""), "whf", POISON, 3, LITERAL("") }));
EXPECT(test_single<char const*>({ LITERAL("x"), "whf", POISON, 3, LITERAL("\0") }));
EXPECT(test_single<char const*>({ LITERAL("xx"), "whf", POISON, 3, LITERAL("w\0") }));
}
TEST_CASE(octal_values)
{
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5o|", 017, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5o|", 01000, 12, LITERAL("| 01000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5o|", 010000, 12, LITERAL("| 010000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5o|", 017, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-10.5o|", 017, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-010.5o|", 017, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010.5o|", 017, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010o|", 017, 12, LITERAL("|0000000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10o|", 017, 12, LITERAL("| 17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxx\0"), "|%.5o|", 017, 7, LITERAL("|00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.1o|", 017, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.0o|", 017, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xx\0"), "|%.0o|", 00, 2, LITERAL("||\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%#.0o|", 00, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%#.0o|", 01, 4, LITERAL("|01|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%#.1o|", 00, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%#.1o|", 01, 4, LITERAL("|01|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%o|", 00, 3, LITERAL("|0|\0") }));
}
TEST_CASE(decimal_values)
{
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5d|", 17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10.5d|", 17, 12, LITERAL("| +00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5d|", -17, 12, LITERAL("| -00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10.5d|", -17, 12, LITERAL("| -00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-10.5d|", 17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+-10.5d|", 17, 12, LITERAL("|+00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+-10.5d|", -17, 12, LITERAL("|-00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-10.5d|", -17, 12, LITERAL("|-00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-010.5d|", 17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010.5d|", 17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010d|", 17, 12, LITERAL("|0000000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+010d|", 17, 12, LITERAL("|+000000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010d|", -17, 12, LITERAL("|-000000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010d|", 170000000, 12, LITERAL("|0170000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+010d|", 170000000, 12, LITERAL("|+170000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10d|", -170000000, 12, LITERAL("|-170000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10d|", -170000000, 12, LITERAL("|-170000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010d|", 1700000000, 12, LITERAL("|1700000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxx\0"), "|%+010d|", 1700000000, 13, LITERAL("|+1700000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxx\0"), "|%10d|", -1700000000, 13, LITERAL("|-1700000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxx\0"), "|%+10d|", -1700000000, 13, LITERAL("|-1700000000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10d|", 17, 12, LITERAL("| 17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10d|", 17, 12, LITERAL("| +17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10d|", -17, 12, LITERAL("| -17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxx\0"), "|%.5d|", 17, 7, LITERAL("|00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.1d|", 17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.0d|", 17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xx\0"), "|%.0d|", 0, 2, LITERAL("||\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%+.0d|", 0, 3, LITERAL("|+|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%#.1d|", 0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%d|", 0, 3, LITERAL("|0|\0") }));
}
TEST_CASE(unsigned_decimal_values)
{
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5u|", 17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10.5u|", 17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-10.5u|", 17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+-10.5u|", 17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-010.5u|", 17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010.5u|", 17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010u|", 17, 12, LITERAL("|0000000017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+010u|", 17, 12, LITERAL("|0000000017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010u|", 170000000, 12, LITERAL("|0170000000|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+010u|", 170000000, 12, LITERAL("|0170000000|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010u|", 1700000000, 12, LITERAL("|1700000000|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+010u|", 1700000000, 12, LITERAL("|1700000000|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10u|", 17, 12, LITERAL("| 17|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxx\0"), "|%+10u|", 17, 12, LITERAL("| 17|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxx\0"), "|%.5u|", 17, 7, LITERAL("|00017|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxx\0"), "|%.1u|", 17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxx\0"), "|%.0u|", 17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xx\0"), "|%.0u|", 0, 2, LITERAL("||\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xx\0"), "|%+.0u|", 0, 2, LITERAL("||\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxx\0"), "|%#.1u|", 0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxx\0"), "|%u|", 0, 3, LITERAL("|0|\0") }));
}
TEST_CASE(hexadecimal_values)
{
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5X|", 0xab, 12, LITERAL("| 000AB|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5X|", 0xab, 12, LITERAL("| 0x000AB|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5x|", 0xab, 12, LITERAL("| 000ab|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5x|", 0xab, 12, LITERAL("| 0x000ab|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5x|", 0x1000, 12, LITERAL("| 01000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5x|", 0x1000, 12, LITERAL("| 0x01000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5x|", 0x10000, 12, LITERAL("| 10000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10.5x|", 0x10000, 12, LITERAL("| 0x10000|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10.5x|", 0x17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-#10.5x|", 0x17, 12, LITERAL("|0x00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-10.5x|", 0x17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%-010.5x|", 0x17, 12, LITERAL("|00017 |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010.5x|", 0x17, 12, LITERAL("| 00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%010x|", 0x17, 12, LITERAL("|0000000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#010x|", 0x17, 12, LITERAL("|0x00000017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%10x|", 0x17, 12, LITERAL("| 17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxx\0"), "|%#10x|", 0x17, 12, LITERAL("| 0x17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxx\0"), "|%.5x|", 0x17, 7, LITERAL("|00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxx\0"), "|%#.5x|", 0x17, 9, LITERAL("|0x00017|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.1x|", 0x17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxx\0"), "|%.0x|", 0x17, 4, LITERAL("|17|\0") }));
EXPECT(test_single<int>({ LITERAL("xx\0"), "|%.0x|", 0x0, 2, LITERAL("||\0") }));
EXPECT(test_single<int>({ LITERAL("xx\0"), "|%#.0x|", 0x0, 2, LITERAL("||\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxx\0"), "|%4.0x|", 0x0, 6, LITERAL("| |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxx\0"), "|%04.0x|", 0x0, 6, LITERAL("| |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxx\0"), "|%#4.0x|", 0x0, 6, LITERAL("| |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxx\0"), "|%#04.0x|", 0x0, 6, LITERAL("| |\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxx\0"), "|%#.0x|", 0x1, 5, LITERAL("|0x1|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%#.1x|", 0x0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%.1x|", 0x0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%x|", 0x0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxx\0"), "|%#.1x|", 0x1, 5, LITERAL("|0x1|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%x|", 0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<int>({ LITERAL("xxx\0"), "|%#x|", 0, 3, LITERAL("|0|\0") }));
}
TEST_CASE(inttypes_macros)
{
EXPECT(test_single<uint8_t>({ LITERAL("xxxxx"), "|%" PRIx8 "|", 0xAB, 4, LITERAL("|ab|\0") }));
EXPECT(test_single<uint8_t>({ LITERAL("xxxxx"), "|%" PRIX8 "|", 0xAB, 4, LITERAL("|AB|\0") }));
EXPECT(test_single<uint16_t>({ LITERAL("xxxxxxx"), "|%" PRIx16 "|", 0xC0DE, 6, LITERAL("|c0de|\0") }));
EXPECT(test_single<uint16_t>({ LITERAL("xxxxxxx"), "|%" PRIX16 "|", 0xC0DE, 6, LITERAL("|C0DE|\0") }));
}
TEST_CASE(float_values)
{
union {
float f;
int i;
} v;
v.i = 0x7fc00000;
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", v.f, 6, LITERAL("| nan|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", -v.f, 6, LITERAL("|-nan|\0") }));
v.i = 0x7f800000;
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", v.f, 6, LITERAL("| inf|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", -v.f, 6, LITERAL("|-inf|\0") }));
}
TEST_CASE(truncation)
{
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxx"), "|%d|", INT_MAX, 12, LITERAL("|2147483647|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxxx"), "|%d|", INT_MIN, 13, LITERAL("|-2147483648|\0") }));
if constexpr (sizeof(long int) == 8) {
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxx"), "|%ld|", LONG_MAX, 21, LITERAL("|9223372036854775807|\0") }));
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%ld|", LONG_MIN + 1, 22, LITERAL("|-9223372036854775807|\0") }));
} else {
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxx"), "|%ld|", LONG_MAX, 12, LITERAL("|2147483647|\0") }));
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxx"), "|%ld|", LONG_MIN, 13, LITERAL("|-2147483648|\0") }));
}
EXPECT(test_single<long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxx"), "|%lld|", LLONG_MAX, 21, LITERAL("|9223372036854775807|\0") }));
EXPECT(test_single<long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%lld|", LLONG_MIN + 1, 22, LITERAL("|-9223372036854775807|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxxx"), "|%u|", UINT_MAX, 12, LITERAL("|4294967295|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxx"), "|%x|", UINT_MAX, 10, LITERAL("|ffffffff|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxx"), "|%X|", UINT_MAX, 10, LITERAL("|FFFFFFFF|\0") }));
if constexpr (sizeof(unsigned long int) == 8) {
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%lu|", ULONG_MAX, 22, LITERAL("|18446744073709551615|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%lx|", ULONG_MAX, 18, LITERAL("|ffffffffffffffff|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%lX|", ULONG_MAX, 18, LITERAL("|FFFFFFFFFFFFFFFF|\0") }));
} else {
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxx"), "|%lu|", ULONG_MAX, 12, LITERAL("|4294967295|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxx"), "|%lx|", ULONG_MAX, 10, LITERAL("|ffffffff|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxx"), "|%lX|", ULONG_MAX, 10, LITERAL("|FFFFFFFF|\0") }));
}
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%llu|", ULLONG_MAX, 22, LITERAL("|18446744073709551615|\0") }));
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%llx|", ULLONG_MAX, 18, LITERAL("|ffffffffffffffff|\0") }));
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%llX|", ULLONG_MAX, 18, LITERAL("|FFFFFFFFFFFFFFFF|\0") }));
}
TEST_CASE(g_format)
{
EXPECT(test_single<double>({ LITERAL("xxxx"), "|%g|", 0.0, 3, LITERAL("|0|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxx"), "|%g|", 1.0, 3, LITERAL("|1|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxxxx"), "|%g|", 1.1, 5, LITERAL("|1.1|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxxxxxx"), "|%g|", -1.12, 7, LITERAL("|-1.12|\0") }));
}
|
