src/ext/tinytest.h

   1 /* tinytest.h -- Copyright 2009-2012 Nick Mathewson
   2  *
   3  * Redistribution and use in source and binary forms, with or without
   4  * modification, are permitted provided that the following conditions
   5  * are met:
   6  * 1. Redistributions of source code must retain the above copyright
   7  *    notice, this list of conditions and the following disclaimer.
   8  * 2. Redistributions in binary form must reproduce the above copyright
   9  *    notice, this list of conditions and the following disclaimer in the
  10  *    documentation and/or other materials provided with the distribution.
  11  * 3. The name of the author may not be used to endorse or promote products
  12  *    derived from this software without specific prior written permission.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef TINYTEST_H_INCLUDED_
  27 #define TINYTEST_H_INCLUDED_
  28
  29 /** Flag for a test that needs to run in a subprocess. */
  30 #define TT_FORK  (1<<0)
  31 /** Runtime flag for a test we've decided to skip. */
  32 #define TT_SKIP  (1<<1)
  33 /** Internal runtime flag for a test we've decided to run. */
  34 #define TT_ENABLED_  (1<<2)
  35 /** Flag for a test that's off by default. */
  36 #define TT_OFF_BY_DEFAULT  (1<<3)
  37 /** If you add your own flags, make them start at this point. */
  38 #define TT_FIRST_USER_FLAG (1<<4)
  39
  40 typedef void (*testcase_fn)(void *);
  41
  42 struct testcase_t;
  43
  44 /** Functions to initialize/teardown a structure for a testcase. */
  45 struct testcase_setup_t {
  46         /** Return a new structure for use by a given testcase. */
  47         void *(*setup_fn)(const struct testcase_t *);
  48         /** Clean/free a structure from setup_fn. Return 1 if ok, 0 on err. */
  49         int (*cleanup_fn)(const struct testcase_t *, void *);
  50 };
  51
  52 /** A single test-case that you can run. */
  53 struct testcase_t {
  54         const char *name; /**< An identifier for this case. */
  55         testcase_fn fn; /**< The function to run to implement this case. */
  56         unsigned long flags; /**< Bitfield of TT_* flags. */
  57         const struct testcase_setup_t *setup; /**< Optional setup/cleanup fns*/
  58         void *setup_data; /**< Extra data usable by setup function */
  59 };
  60 #define END_OF_TESTCASES { NULL, NULL, 0, NULL, NULL }
  61
  62 /** A group of tests that are selectable together. */
  63 struct testgroup_t {
  64         const char *prefix; /**< Prefix to prepend to testnames. */
  65         struct testcase_t *cases; /** Array, ending with END_OF_TESTCASES */
  66 };
  67 #define END_OF_GROUPS { NULL, NULL}
  68
  69 struct testlist_alias_t {
  70         const char *name;
  71         const char **tests;
  72 };
  73 #define END_OF_ALIASES { NULL, NULL }
  74
  75 /** Implementation: called from a test to indicate failure, before logging. */
  76 void tinytest_set_test_failed_(void);
  77 /** Implementation: called from a test to indicate that we're skipping. */
  78 void tinytest_set_test_skipped_(void);
  79 /** Implementation: return 0 for quiet, 1 for normal, 2 for loud. */
  80 int tinytest_get_verbosity_(void);
  81 /** Implementation: Set a flag on tests matching a name; returns number
  82  * of tests that matched. */
  83 int tinytest_set_flag_(struct testgroup_t *, const char *, int set, unsigned long);
  84 /** Implementation: Put a chunk of memory into hex. */
  85 char *tinytest_format_hex_(const void *, unsigned long);
  86
  87 /** Set all tests in 'groups' matching the name 'named' to be skipped. */
  88 #define tinytest_skip(groups, named) \
  89         tinytest_set_flag_(groups, named, 1, TT_SKIP)
  90
  91 /** Run a single testcase in a single group. */
  92 int testcase_run_one(const struct testgroup_t *,const struct testcase_t *);
  93
  94 void tinytest_set_aliases(const struct testlist_alias_t *aliases);
  95
  96 /** Run a set of testcases from an END_OF_GROUPS-terminated array of groups,
  97     as selected from the command line. */
  98 int tinytest_main(int argc, const char **argv, struct testgroup_t *groups);
  99
 100 #endif