1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Simple unit test library
5 * Copyright (c) 2013 Google, Inc
13 #include <linux/err.h>
14 #include <test/test.h>
16 struct unit_test_state;
19 * ut_fail() - Record failure of a unit test
22 * @fname: Filename where the error occurred
23 * @line: Line number where the error occurred
24 * @func: Function name where the error occurred
25 * @cond: The condition that failed
27 void ut_fail(struct unit_test_state *uts, const char *fname, int line,
28 const char *func, const char *cond);
31 * ut_failf() - Record failure of a unit test
34 * @fname: Filename where the error occurred
35 * @line: Line number where the error occurred
36 * @func: Function name where the error occurred
37 * @cond: The condition that failed
38 * @fmt: printf() format string for the error, followed by args
40 void ut_failf(struct unit_test_state *uts, const char *fname, int line,
41 const char *func, const char *cond, const char *fmt, ...)
42 __attribute__ ((format (__printf__, 6, 7)));
45 * ut_check_console_line() - Check the next console line against expectations
47 * This creates a string and then checks it against the next line of console
48 * output obtained with console_record_readline().
50 * After the function returns, uts->expect_str holds the expected string and
51 * uts->actual_str holds the actual string read from the console.
54 * @fmt: printf() format string for the error, followed by args
55 * @return 0 if OK, other value on error
57 int ut_check_console_line(struct unit_test_state *uts, const char *fmt, ...)
58 __attribute__ ((format (__printf__, 2, 3)));
61 * ut_check_console_linen() - Check part of the next console line
63 * This creates a string and then checks it against the next line of console
64 * output obtained with console_record_readline(). Only the length of the
67 * After the function returns, uts->expect_str holds the expected string and
68 * uts->actual_str holds the actual string read from the console.
71 * @fmt: printf() format string for the error, followed by args
72 * @return 0 if OK, other value on error
74 int ut_check_console_linen(struct unit_test_state *uts, const char *fmt, ...)
75 __attribute__ ((format (__printf__, 2, 3)));
78 * ut_check_skipline() - Check that the next console line exists and skip it
81 * @return 0 if OK, other value on error
83 int ut_check_skipline(struct unit_test_state *uts);
86 * ut_check_console_end() - Check there is no more console output
88 * After the function returns, uts->actual_str holds the actual string read
92 * @return 0 if OK (console has no output), other value on error
94 int ut_check_console_end(struct unit_test_state *uts);
97 * ut_check_console_dump() - Check that next lines have a print_buffer() dump
99 * This only supports a byte dump.
101 * @total_bytes: Size of the expected dump in bytes`
102 * @return 0 if OK (looks like a dump and the length matches), other value on
105 int ut_check_console_dump(struct unit_test_state *uts, int total_bytes);
107 /* Assert that a condition is non-zero */
108 #define ut_assert(cond) \
110 ut_fail(uts, __FILE__, __LINE__, __func__, #cond); \
111 return CMD_RET_FAILURE; \
114 /* Assert that a condition is non-zero, with printf() string */
115 #define ut_assertf(cond, fmt, args...) \
117 ut_failf(uts, __FILE__, __LINE__, __func__, #cond, \
119 return CMD_RET_FAILURE; \
122 /* Assert that two int expressions are equal */
123 #define ut_asserteq(expr1, expr2) { \
124 unsigned int _val1 = (expr1), _val2 = (expr2); \
126 if (_val1 != _val2) { \
127 ut_failf(uts, __FILE__, __LINE__, __func__, \
128 #expr1 " == " #expr2, \
129 "Expected %#x (%d), got %#x (%d)", \
130 _val1, _val1, _val2, _val2); \
131 return CMD_RET_FAILURE; \
135 /* Assert that two 64 int expressions are equal */
136 #define ut_asserteq_64(expr1, expr2) { \
137 u64 _val1 = (expr1), _val2 = (expr2); \
139 if (_val1 != _val2) { \
140 ut_failf(uts, __FILE__, __LINE__, __func__, \
141 #expr1 " == " #expr2, \
142 "Expected %#llx (%lld), got %#llx (%lld)", \
143 (unsigned long long)_val1, \
144 (unsigned long long)_val1, \
145 (unsigned long long)_val2, \
146 (unsigned long long)_val2); \
147 return CMD_RET_FAILURE; \
151 /* Assert that two string expressions are equal */
152 #define ut_asserteq_str(expr1, expr2) { \
153 const char *_val1 = (expr1), *_val2 = (expr2); \
155 if (strcmp(_val1, _val2)) { \
156 ut_failf(uts, __FILE__, __LINE__, __func__, \
157 #expr1 " = " #expr2, \
158 "Expected \"%s\", got \"%s\"", _val1, _val2); \
159 return CMD_RET_FAILURE; \
164 * Assert that two string expressions are equal, up to length of the
167 #define ut_asserteq_strn(expr1, expr2) { \
168 const char *_val1 = (expr1), *_val2 = (expr2); \
169 int _len = strlen(_val1); \
171 if (memcmp(_val1, _val2, _len)) { \
172 ut_failf(uts, __FILE__, __LINE__, __func__, \
173 #expr1 " = " #expr2, \
174 "Expected \"%.*s\", got \"%.*s\"", \
175 _len, _val1, _len, _val2); \
176 return CMD_RET_FAILURE; \
181 * Assert that two string expressions are equal, up to length of the
184 #define ut_asserteq_strn(expr1, expr2) { \
185 const char *_val1 = (expr1), *_val2 = (expr2); \
186 int _len = strlen(_val1); \
188 if (memcmp(_val1, _val2, _len)) { \
189 ut_failf(uts, __FILE__, __LINE__, __func__, \
190 #expr1 " = " #expr2, \
191 "Expected \"%.*s\", got \"%.*s\"", \
192 _len, _val1, _len, _val2); \
193 return CMD_RET_FAILURE; \
197 /* Assert that two memory areas are equal */
198 #define ut_asserteq_mem(expr1, expr2, len) { \
199 const u8 *_val1 = (u8 *)(expr1), *_val2 = (u8 *)(expr2); \
200 const uint __len = len; \
202 if (memcmp(_val1, _val2, __len)) { \
203 char __buf1[64 + 1] = "\0"; \
204 char __buf2[64 + 1] = "\0"; \
205 bin2hex(__buf1, _val1, min(__len, (uint)32)); \
206 bin2hex(__buf2, _val2, min(__len, (uint)32)); \
207 ut_failf(uts, __FILE__, __LINE__, __func__, \
208 #expr1 " = " #expr2, \
209 "Expected \"%s\", got \"%s\"", \
211 return CMD_RET_FAILURE; \
215 /* Assert that two pointers are equal */
216 #define ut_asserteq_ptr(expr1, expr2) { \
217 const void *_val1 = (expr1), *_val2 = (expr2); \
219 if (_val1 != _val2) { \
220 ut_failf(uts, __FILE__, __LINE__, __func__, \
221 #expr1 " = " #expr2, \
222 "Expected %p, got %p", _val1, _val2); \
223 return CMD_RET_FAILURE; \
227 /* Assert that a pointer is NULL */
228 #define ut_assertnull(expr) { \
229 const void *_val = (expr); \
232 ut_failf(uts, __FILE__, __LINE__, __func__, \
234 "Expected NULL, got %p", _val); \
235 return CMD_RET_FAILURE; \
239 /* Assert that a pointer is not NULL */
240 #define ut_assertnonnull(expr) { \
241 const void *_val = (expr); \
244 ut_failf(uts, __FILE__, __LINE__, __func__, \
246 "Expected non-null, got NULL"); \
247 return CMD_RET_FAILURE; \
251 /* Assert that a pointer is not an error pointer */
252 #define ut_assertok_ptr(expr) { \
253 const void *_val = (expr); \
255 if (IS_ERR(_val)) { \
256 ut_failf(uts, __FILE__, __LINE__, __func__, \
258 "Expected pointer, got error %ld", \
260 return CMD_RET_FAILURE; \
264 /* Assert that an operation succeeds (returns 0) */
265 #define ut_assertok(cond) ut_asserteq(0, cond)
267 /* Assert that the next console output line matches */
268 #define ut_assert_nextline(fmt, args...) \
269 if (ut_check_console_line(uts, fmt, ##args)) { \
270 ut_failf(uts, __FILE__, __LINE__, __func__, \
271 "console", "\nExpected '%s',\n got '%s'", \
272 uts->expect_str, uts->actual_str); \
273 return CMD_RET_FAILURE; \
276 /* Assert that the next console output line matches up to the length */
277 #define ut_assert_nextlinen(fmt, args...) \
278 if (ut_check_console_linen(uts, fmt, ##args)) { \
279 ut_failf(uts, __FILE__, __LINE__, __func__, \
280 "console", "\nExpected '%s',\n got '%s'", \
281 uts->expect_str, uts->actual_str); \
282 return CMD_RET_FAILURE; \
285 /* Assert that there is a 'next' console output line, and skip it */
286 #define ut_assert_skipline() \
287 if (ut_check_skipline(uts)) { \
288 ut_failf(uts, __FILE__, __LINE__, __func__, \
289 "console", "\nExpected a line, got end"); \
290 return CMD_RET_FAILURE; \
293 /* Assert that there is no more console output */
294 #define ut_assert_console_end() \
295 if (ut_check_console_end(uts)) { \
296 ut_failf(uts, __FILE__, __LINE__, __func__, \
297 "console", "Expected no more output, got '%s'",\
299 return CMD_RET_FAILURE; \
302 /* Assert that the next lines are print_buffer() dump at an address */
303 #define ut_assert_nextlines_are_dump(total_bytes) \
304 if (ut_check_console_dump(uts, total_bytes)) { \
305 ut_failf(uts, __FILE__, __LINE__, __func__, \
307 "Expected dump of length %x bytes, got '%s'", \
308 total_bytes, uts->actual_str); \
309 return CMD_RET_FAILURE; \
313 * ut_check_free() - Return the number of bytes free in the malloc() pool
317 ulong ut_check_free(void);
320 * ut_check_delta() - Return the number of bytes allocated/freed
322 * @last: Last value from ut_check_free
323 * @return free memory delta from @last; positive means more memory has been
324 * allocated, negative means less has been allocated (i.e. some is freed)
326 long ut_check_delta(ulong last);