include/dm/ut.h

   1 /*
   2  * Simple unit test library for driver model
   3  *
   4  * Copyright (c) 2013 Google, Inc
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef __DM_UT_H
  10 #define __DM_UT_H
  11
  12 struct dm_test_state;
  13
  14 /**
  15  * ut_fail() - Record failure of a unit test
  16  *
  17  * @dms: Test state
  18  * @fname: Filename where the error occured
  19  * @line: Line number where the error occured
  20  * @func: Function name where the error occured
  21  * @cond: The condition that failed
  22  */
  23 void ut_fail(struct dm_test_state *dms, const char *fname, int line,
  24              const char *func, const char *cond);
  25
  26 /**
  27  * ut_failf() - Record failure of a unit test
  28  *
  29  * @dms: Test state
  30  * @fname: Filename where the error occured
  31  * @line: Line number where the error occured
  32  * @func: Function name where the error occured
  33  * @cond: The condition that failed
  34  * @fmt: printf() format string for the error, followed by args
  35  */
  36 void ut_failf(struct dm_test_state *dms, const char *fname, int line,
  37               const char *func, const char *cond, const char *fmt, ...)
  38                         __attribute__ ((format (__printf__, 6, 7)));
  39
  40
  41 /* Assert that a condition is non-zero */
  42 #define ut_assert(cond)                                                 \
  43         if (!(cond)) {                                                  \
  44                 ut_fail(dms, __FILE__, __LINE__, __func__, #cond);      \
  45                 return -1;                                              \
  46         }
  47
  48 /* Assert that a condition is non-zero, with printf() string */
  49 #define ut_assertf(cond, fmt, args...)                                  \
  50         if (!(cond)) {                                                  \
  51                 ut_failf(dms, __FILE__, __LINE__, __func__, #cond,      \
  52                          fmt, ##args);                                  \
  53                 return -1;                                              \
  54         }
  55
  56 /* Assert that two int expressions are equal */
  57 #define ut_asserteq(expr1, expr2) {                                     \
  58         unsigned int val1 = (expr1), val2 = (expr2);                    \
  59                                                                         \
  60         if (val1 != val2) {                                             \
  61                 ut_failf(dms, __FILE__, __LINE__, __func__,             \
  62                          #expr1 " == " #expr2,                          \
  63                          "Expected %d, got %d", val1, val2);            \
  64                 return -1;                                              \
  65         }                                                               \
  66 }
  67
  68 /* Assert that two string expressions are equal */
  69 #define ut_asserteq_str(expr1, expr2) {                                 \
  70         const char *val1 = (expr1), *val2 = (expr2);                    \
  71                                                                         \
  72         if (strcmp(val1, val2)) {                                       \
  73                 ut_failf(dms, __FILE__, __LINE__, __func__,             \
  74                          #expr1 " = " #expr2,                           \
  75                          "Expected \"%s\", got \"%s\"", val1, val2);    \
  76                 return -1;                                              \
  77         }                                                               \
  78 }
  79
  80 /* Assert that two pointers are equal */
  81 #define ut_asserteq_ptr(expr1, expr2) {                                 \
  82         const void *val1 = (expr1), *val2 = (expr2);                    \
  83                                                                         \
  84         if (val1 != val2) {                                             \
  85                 ut_failf(dms, __FILE__, __LINE__, __func__,             \
  86                          #expr1 " = " #expr2,                           \
  87                          "Expected %p, got %p", val1, val2);            \
  88                 return -1;                                              \
  89         }                                                               \
  90 }
  91
  92 /* Assert that an operation succeeds (returns 0) */
  93 #define ut_assertok(cond)       ut_asserteq(0, cond)
  94
  95 #endif