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glib/glib/gtestutils.c
Ryan Lortie 3b25e975b3 gtk-doc fixups for glib/
2011-09-05 11:30:58 -04:00

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/* GLib testing utilities
* Copyright (C) 2007 Imendio AB
* Authors: Tim Janik, Sven Herzberg
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gtestutils.h"
#include <sys/types.h>
#ifdef G_OS_UNIX
#include <sys/wait.h>
#include <sys/time.h>
#include <fcntl.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef G_OS_WIN32
#include <io.h>
#endif
#include <errno.h>
#include <signal.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H */
#include "gmain.h"
#include "gpattern.h"
#include "grand.h"
#include "gstrfuncs.h"
#include "gtimer.h"
/* Global variable for storing assertion messages; this is the counterpart to
* glibc's (private) __abort_msg variable, and allows developers and crash
* analysis systems like Apport and ABRT to fish out assertion messages from
* core dumps, instead of having to catch them on screen output. */
char *__glib_assert_msg = NULL;
/* --- structures --- */
struct GTestCase
{
gchar *name;
guint fixture_size;
void (*fixture_setup) (void*, gconstpointer);
void (*fixture_test) (void*, gconstpointer);
void (*fixture_teardown) (void*, gconstpointer);
gpointer test_data;
};
struct GTestSuite
{
gchar *name;
GSList *suites;
GSList *cases;
};
typedef struct DestroyEntry DestroyEntry;
struct DestroyEntry
{
DestroyEntry *next;
GDestroyNotify destroy_func;
gpointer destroy_data;
};
/* --- prototypes --- */
static void test_run_seed (const gchar *rseed);
static void test_trap_clear (void);
static guint8* g_test_log_dump (GTestLogMsg *msg,
guint *len);
static void gtest_default_log_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer unused_data);
/* --- variables --- */
static int test_log_fd = -1;
static gboolean test_mode_fatal = TRUE;
static gboolean g_test_run_once = TRUE;
static gboolean test_run_list = FALSE;
static gchar *test_run_seedstr = NULL;
static GRand *test_run_rand = NULL;
static gchar *test_run_name = "";
static guint test_run_forks = 0;
static guint test_run_count = 0;
static guint test_run_success = FALSE;
static guint test_skip_count = 0;
static GTimer *test_user_timer = NULL;
static double test_user_stamp = 0;
static GSList *test_paths = NULL;
static GTestSuite *test_suite_root = NULL;
static int test_trap_last_status = 0;
static int test_trap_last_pid = 0;
static char *test_trap_last_stdout = NULL;
static char *test_trap_last_stderr = NULL;
static char *test_uri_base = NULL;
static gboolean test_debug_log = FALSE;
static DestroyEntry *test_destroy_queue = NULL;
static GTestConfig mutable_test_config_vars = {
FALSE, /* test_initialized */
TRUE, /* test_quick */
FALSE, /* test_perf */
FALSE, /* test_verbose */
FALSE, /* test_quiet */
};
const GTestConfig * const g_test_config_vars = &mutable_test_config_vars;
/* --- functions --- */
const char*
g_test_log_type_name (GTestLogType log_type)
{
switch (log_type)
{
case G_TEST_LOG_NONE: return "none";
case G_TEST_LOG_ERROR: return "error";
case G_TEST_LOG_START_BINARY: return "binary";
case G_TEST_LOG_LIST_CASE: return "list";
case G_TEST_LOG_SKIP_CASE: return "skip";
case G_TEST_LOG_START_CASE: return "start";
case G_TEST_LOG_STOP_CASE: return "stop";
case G_TEST_LOG_MIN_RESULT: return "minperf";
case G_TEST_LOG_MAX_RESULT: return "maxperf";
case G_TEST_LOG_MESSAGE: return "message";
}
return "???";
}
static void
g_test_log_send (guint n_bytes,
const guint8 *buffer)
{
if (test_log_fd >= 0)
{
int r;
do
r = write (test_log_fd, buffer, n_bytes);
while (r < 0 && errno == EINTR);
}
if (test_debug_log)
{
GTestLogBuffer *lbuffer = g_test_log_buffer_new ();
GTestLogMsg *msg;
guint ui;
g_test_log_buffer_push (lbuffer, n_bytes, buffer);
msg = g_test_log_buffer_pop (lbuffer);
g_warn_if_fail (msg != NULL);
g_warn_if_fail (lbuffer->data->len == 0);
g_test_log_buffer_free (lbuffer);
/* print message */
g_printerr ("{*LOG(%s)", g_test_log_type_name (msg->log_type));
for (ui = 0; ui < msg->n_strings; ui++)
g_printerr (":{%s}", msg->strings[ui]);
if (msg->n_nums)
{
g_printerr (":(");
for (ui = 0; ui < msg->n_nums; ui++)
g_printerr ("%s%.16Lg", ui ? ";" : "", msg->nums[ui]);
g_printerr (")");
}
g_printerr (":LOG*}\n");
g_test_log_msg_free (msg);
}
}
static void
g_test_log (GTestLogType lbit,
const gchar *string1,
const gchar *string2,
guint n_args,
long double *largs)
{
gboolean fail = lbit == G_TEST_LOG_STOP_CASE && largs[0] != 0;
GTestLogMsg msg;
gchar *astrings[3] = { NULL, NULL, NULL };
guint8 *dbuffer;
guint32 dbufferlen;
switch (lbit)
{
case G_TEST_LOG_START_BINARY:
if (g_test_verbose())
g_print ("GTest: random seed: %s\n", string2);
break;
case G_TEST_LOG_STOP_CASE:
if (g_test_verbose())
g_print ("GTest: result: %s\n", fail ? "FAIL" : "OK");
else if (!g_test_quiet())
g_print ("%s\n", fail ? "FAIL" : "OK");
if (fail && test_mode_fatal)
abort();
break;
case G_TEST_LOG_MIN_RESULT:
if (g_test_verbose())
g_print ("(MINPERF:%s)\n", string1);
break;
case G_TEST_LOG_MAX_RESULT:
if (g_test_verbose())
g_print ("(MAXPERF:%s)\n", string1);
break;
case G_TEST_LOG_MESSAGE:
if (g_test_verbose())
g_print ("(MSG: %s)\n", string1);
break;
default: ;
}
msg.log_type = lbit;
msg.n_strings = (string1 != NULL) + (string1 && string2);
msg.strings = astrings;
astrings[0] = (gchar*) string1;
astrings[1] = astrings[0] ? (gchar*) string2 : NULL;
msg.n_nums = n_args;
msg.nums = largs;
dbuffer = g_test_log_dump (&msg, &dbufferlen);
g_test_log_send (dbufferlen, dbuffer);
g_free (dbuffer);
switch (lbit)
{
case G_TEST_LOG_START_CASE:
if (g_test_verbose())
g_print ("GTest: run: %s\n", string1);
else if (!g_test_quiet())
g_print ("%s: ", string1);
break;
default: ;
}
}
/* We intentionally parse the command line without GOptionContext
* because otherwise you would never be able to test it.
*/
static void
parse_args (gint *argc_p,
gchar ***argv_p)
{
guint argc = *argc_p;
gchar **argv = *argv_p;
guint i, e;
/* parse known args */
for (i = 1; i < argc; i++)
{
if (strcmp (argv[i], "--g-fatal-warnings") == 0)
{
GLogLevelFlags fatal_mask = (GLogLevelFlags) g_log_set_always_fatal ((GLogLevelFlags) G_LOG_FATAL_MASK);
fatal_mask = (GLogLevelFlags) (fatal_mask | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL);
g_log_set_always_fatal (fatal_mask);
argv[i] = NULL;
}
else if (strcmp (argv[i], "--keep-going") == 0 ||
strcmp (argv[i], "-k") == 0)
{
test_mode_fatal = FALSE;
argv[i] = NULL;
}
else if (strcmp (argv[i], "--debug-log") == 0)
{
test_debug_log = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--GTestLogFD", argv[i]) == 0 || strncmp ("--GTestLogFD=", argv[i], 13) == 0)
{
gchar *equal = argv[i] + 12;
if (*equal == '=')
test_log_fd = g_ascii_strtoull (equal + 1, NULL, 0);
else if (i + 1 < argc)
{
argv[i++] = NULL;
test_log_fd = g_ascii_strtoull (argv[i], NULL, 0);
}
argv[i] = NULL;
}
else if (strcmp ("--GTestSkipCount", argv[i]) == 0 || strncmp ("--GTestSkipCount=", argv[i], 17) == 0)
{
gchar *equal = argv[i] + 16;
if (*equal == '=')
test_skip_count = g_ascii_strtoull (equal + 1, NULL, 0);
else if (i + 1 < argc)
{
argv[i++] = NULL;
test_skip_count = g_ascii_strtoull (argv[i], NULL, 0);
}
argv[i] = NULL;
}
else if (strcmp ("-p", argv[i]) == 0 || strncmp ("-p=", argv[i], 3) == 0)
{
gchar *equal = argv[i] + 2;
if (*equal == '=')
test_paths = g_slist_prepend (test_paths, equal + 1);
else if (i + 1 < argc)
{
argv[i++] = NULL;
test_paths = g_slist_prepend (test_paths, argv[i]);
}
argv[i] = NULL;
}
else if (strcmp ("-m", argv[i]) == 0 || strncmp ("-m=", argv[i], 3) == 0)
{
gchar *equal = argv[i] + 2;
const gchar *mode = "";
if (*equal == '=')
mode = equal + 1;
else if (i + 1 < argc)
{
argv[i++] = NULL;
mode = argv[i];
}
if (strcmp (mode, "perf") == 0)
mutable_test_config_vars.test_perf = TRUE;
else if (strcmp (mode, "slow") == 0)
mutable_test_config_vars.test_quick = FALSE;
else if (strcmp (mode, "thorough") == 0)
mutable_test_config_vars.test_quick = FALSE;
else if (strcmp (mode, "quick") == 0)
{
mutable_test_config_vars.test_quick = TRUE;
mutable_test_config_vars.test_perf = FALSE;
}
else
g_error ("unknown test mode: -m %s", mode);
argv[i] = NULL;
}
else if (strcmp ("-q", argv[i]) == 0 || strcmp ("--quiet", argv[i]) == 0)
{
mutable_test_config_vars.test_quiet = TRUE;
mutable_test_config_vars.test_verbose = FALSE;
argv[i] = NULL;
}
else if (strcmp ("--verbose", argv[i]) == 0)
{
mutable_test_config_vars.test_quiet = FALSE;
mutable_test_config_vars.test_verbose = TRUE;
argv[i] = NULL;
}
else if (strcmp ("-l", argv[i]) == 0)
{
test_run_list = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--seed", argv[i]) == 0 || strncmp ("--seed=", argv[i], 7) == 0)
{
gchar *equal = argv[i] + 6;
if (*equal == '=')
test_run_seedstr = equal + 1;
else if (i + 1 < argc)
{
argv[i++] = NULL;
test_run_seedstr = argv[i];
}
argv[i] = NULL;
}
else if (strcmp ("-?", argv[i]) == 0 || strcmp ("--help", argv[i]) == 0)
{
printf ("Usage:\n"
" %s [OPTION...]\n\n"
"Help Options:\n"
" -?, --help Show help options\n"
"Test Options:\n"
" -l List test cases available in a test executable\n"
" -seed=RANDOMSEED Provide a random seed to reproduce test\n"
" runs using random numbers\n"
" --verbose Run tests verbosely\n"
" -q, --quiet Run tests quietly\n"
" -p TESTPATH execute all tests matching TESTPATH\n"
" -m {perf|slow|thorough|quick} Execute tests according modes\n"
" --debug-log debug test logging output\n"
" -k, --keep-going gtester-specific argument\n"
" --GTestLogFD=N gtester-specific argument\n"
" --GTestSkipCount=N gtester-specific argument\n",
argv[0]);
exit (0);
}
}
/* collapse argv */
e = 1;
for (i = 1; i < argc; i++)
if (argv[i])
{
argv[e++] = argv[i];
if (i >= e)
argv[i] = NULL;
}
*argc_p = e;
}
/**
* g_test_init:
* @argc: Address of the @argc parameter of the main() function.
* Changed if any arguments were handled.
* @argv: Address of the @argv parameter of main().
* Any parameters understood by g_test_init() stripped before return.
* @...: Reserved for future extension. Currently, you must pass %NULL.
*
* Initialize the GLib testing framework, e.g. by seeding the
* test random number generator, the name for g_get_prgname()
* and parsing test related command line args.
* So far, the following arguments are understood:
* <variablelist>
* <varlistentry>
* <term><option>-l</option></term>
* <listitem><para>
* list test cases available in a test executable.
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>--seed=<replaceable>RANDOMSEED</replaceable></option></term>
* <listitem><para>
* provide a random seed to reproduce test runs using random numbers.
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>--verbose</option></term>
* <listitem><para>run tests verbosely.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>-q</option>, <option>--quiet</option></term>
* <listitem><para>run tests quietly.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>-p <replaceable>TESTPATH</replaceable></option></term>
* <listitem><para>
* execute all tests matching <replaceable>TESTPATH</replaceable>.
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>-m {perf|slow|thorough|quick}</option></term>
* <listitem><para>
* execute tests according to these test modes:
* <variablelist>
* <varlistentry>
* <term>perf</term>
* <listitem><para>
* performance tests, may take long and report results.
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term>slow, thorough</term>
* <listitem><para>
* slow and thorough tests, may take quite long and
* maximize coverage.
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term>quick</term>
* <listitem><para>
* quick tests, should run really quickly and give good coverage.
* </para></listitem>
* </varlistentry>
* </variablelist>
* </para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>--debug-log</option></term>
* <listitem><para>debug test logging output.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>-k</option>, <option>--keep-going</option></term>
* <listitem><para>gtester-specific argument.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>--GTestLogFD <replaceable>N</replaceable></option></term>
* <listitem><para>gtester-specific argument.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term><option>--GTestSkipCount <replaceable>N</replaceable></option></term>
* <listitem><para>gtester-specific argument.</para></listitem>
* </varlistentry>
* </variablelist>
*
* Since: 2.16
*/
void
g_test_init (int *argc,
char ***argv,
...)
{
static char seedstr[4 + 4 * 8 + 1];
va_list args;
gpointer vararg1;
/* make warnings and criticals fatal for all test programs */
GLogLevelFlags fatal_mask = (GLogLevelFlags) g_log_set_always_fatal ((GLogLevelFlags) G_LOG_FATAL_MASK);
fatal_mask = (GLogLevelFlags) (fatal_mask | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL);
g_log_set_always_fatal (fatal_mask);
/* check caller args */
g_return_if_fail (argc != NULL);
g_return_if_fail (argv != NULL);
g_return_if_fail (g_test_config_vars->test_initialized == FALSE);
mutable_test_config_vars.test_initialized = TRUE;
va_start (args, argv);
vararg1 = va_arg (args, gpointer); /* reserved for future extensions */
va_end (args);
g_return_if_fail (vararg1 == NULL);
/* setup random seed string */
g_snprintf (seedstr, sizeof (seedstr), "R02S%08x%08x%08x%08x", g_random_int(), g_random_int(), g_random_int(), g_random_int());
test_run_seedstr = seedstr;
/* parse args, sets up mode, changes seed, etc. */
parse_args (argc, argv);
if (!g_get_prgname())
g_set_prgname ((*argv)[0]);
/* verify GRand reliability, needed for reliable seeds */
if (1)
{
GRand *rg = g_rand_new_with_seed (0xc8c49fb6);
guint32 t1 = g_rand_int (rg), t2 = g_rand_int (rg), t3 = g_rand_int (rg), t4 = g_rand_int (rg);
/* g_print ("GRand-current: 0x%x 0x%x 0x%x 0x%x\n", t1, t2, t3, t4); */
if (t1 != 0xfab39f9b || t2 != 0xb948fb0e || t3 != 0x3d31be26 || t4 != 0x43a19d66)
g_warning ("random numbers are not GRand-2.2 compatible, seeds may be broken (check $G_RANDOM_VERSION)");
g_rand_free (rg);
}
/* check rand seed */
test_run_seed (test_run_seedstr);
/* report program start */
g_log_set_default_handler (gtest_default_log_handler, NULL);
g_test_log (G_TEST_LOG_START_BINARY, g_get_prgname(), test_run_seedstr, 0, NULL);
}
static void
test_run_seed (const gchar *rseed)
{
guint seed_failed = 0;
if (test_run_rand)
g_rand_free (test_run_rand);
test_run_rand = NULL;
while (strchr (" \t\v\r\n\f", *rseed))
rseed++;
if (strncmp (rseed, "R02S", 4) == 0) /* seed for random generator 02 (GRand-2.2) */
{
const char *s = rseed + 4;
if (strlen (s) >= 32) /* require 4 * 8 chars */
{
guint32 seedarray[4];
gchar *p, hexbuf[9] = { 0, };
memcpy (hexbuf, s + 0, 8);
seedarray[0] = g_ascii_strtoull (hexbuf, &p, 16);
seed_failed += p != NULL && *p != 0;
memcpy (hexbuf, s + 8, 8);
seedarray[1] = g_ascii_strtoull (hexbuf, &p, 16);
seed_failed += p != NULL && *p != 0;
memcpy (hexbuf, s + 16, 8);
seedarray[2] = g_ascii_strtoull (hexbuf, &p, 16);
seed_failed += p != NULL && *p != 0;
memcpy (hexbuf, s + 24, 8);
seedarray[3] = g_ascii_strtoull (hexbuf, &p, 16);
seed_failed += p != NULL && *p != 0;
if (!seed_failed)
{
test_run_rand = g_rand_new_with_seed_array (seedarray, 4);
return;
}
}
}
g_error ("Unknown or invalid random seed: %s", rseed);
}
/**
* g_test_rand_int:
*
* Get a reproducible random integer number.
*
* The random numbers generated by the g_test_rand_*() family of functions
* change with every new test program start, unless the --seed option is
* given when starting test programs.
*
* For individual test cases however, the random number generator is
* reseeded, to avoid dependencies between tests and to make --seed
* effective for all test cases.
*
* Returns: a random number from the seeded random number generator.
*
* Since: 2.16
*/
gint32
g_test_rand_int (void)
{
return g_rand_int (test_run_rand);
}
/**
* g_test_rand_int_range:
* @begin: the minimum value returned by this function
* @end: the smallest value not to be returned by this function
*
* Get a reproducible random integer number out of a specified range,
* see g_test_rand_int() for details on test case random numbers.
*
* Returns: a number with @begin <= number < @end.
*
* Since: 2.16
*/
gint32
g_test_rand_int_range (gint32 begin,
gint32 end)
{
return g_rand_int_range (test_run_rand, begin, end);
}
/**
* g_test_rand_double:
*
* Get a reproducible random floating point number,
* see g_test_rand_int() for details on test case random numbers.
*
* Returns: a random number from the seeded random number generator.
*
* Since: 2.16
*/
double
g_test_rand_double (void)
{
return g_rand_double (test_run_rand);
}
/**
* g_test_rand_double_range:
* @range_start: the minimum value returned by this function
* @range_end: the minimum value not returned by this function
*
* Get a reproducible random floating pointer number out of a specified range,
* see g_test_rand_int() for details on test case random numbers.
*
* Returns: a number with @range_start <= number < @range_end.
*
* Since: 2.16
*/
double
g_test_rand_double_range (double range_start,
double range_end)
{
return g_rand_double_range (test_run_rand, range_start, range_end);
}
/**
* g_test_timer_start:
*
* Start a timing test. Call g_test_timer_elapsed() when the task is supposed
* to be done. Call this function again to restart the timer.
*
* Since: 2.16
*/
void
g_test_timer_start (void)
{
if (!test_user_timer)
test_user_timer = g_timer_new();
test_user_stamp = 0;
g_timer_start (test_user_timer);
}
/**
* g_test_timer_elapsed:
*
* Get the time since the last start of the timer with g_test_timer_start().
*
* Returns: the time since the last start of the timer, as a double
*
* Since: 2.16
*/
double
g_test_timer_elapsed (void)
{
test_user_stamp = test_user_timer ? g_timer_elapsed (test_user_timer, NULL) : 0;
return test_user_stamp;
}
/**
* g_test_timer_last:
*
* Report the last result of g_test_timer_elapsed().
*
* Returns: the last result of g_test_timer_elapsed(), as a double
*
* Since: 2.16
*/
double
g_test_timer_last (void)
{
return test_user_stamp;
}
/**
* g_test_minimized_result:
* @minimized_quantity: the reported value
* @format: the format string of the report message
* @...: arguments to pass to the printf() function
*
* Report the result of a performance or measurement test.
* The test should generally strive to minimize the reported
* quantities (smaller values are better than larger ones),
* this and @minimized_quantity can determine sorting
* order for test result reports.
*
* Since: 2.16
*/
void
g_test_minimized_result (double minimized_quantity,
const char *format,
...)
{
long double largs = minimized_quantity;
gchar *buffer;
va_list args;
va_start (args, format);
buffer = g_strdup_vprintf (format, args);
va_end (args);
g_test_log (G_TEST_LOG_MIN_RESULT, buffer, NULL, 1, &largs);
g_free (buffer);
}
/**
* g_test_maximized_result:
* @maximized_quantity: the reported value
* @format: the format string of the report message
* @...: arguments to pass to the printf() function
*
* Report the result of a performance or measurement test.
* The test should generally strive to maximize the reported
* quantities (larger values are better than smaller ones),
* this and @maximized_quantity can determine sorting
* order for test result reports.
*
* Since: 2.16
*/
void
g_test_maximized_result (double maximized_quantity,
const char *format,
...)
{
long double largs = maximized_quantity;
gchar *buffer;
va_list args;
va_start (args, format);
buffer = g_strdup_vprintf (format, args);
va_end (args);
g_test_log (G_TEST_LOG_MAX_RESULT, buffer, NULL, 1, &largs);
g_free (buffer);
}
/**
* g_test_message:
* @format: the format string
* @...: printf-like arguments to @format
*
* Add a message to the test report.
*
* Since: 2.16
*/
void
g_test_message (const char *format,
...)
{
gchar *buffer;
va_list args;
va_start (args, format);
buffer = g_strdup_vprintf (format, args);
va_end (args);
g_test_log (G_TEST_LOG_MESSAGE, buffer, NULL, 0, NULL);
g_free (buffer);
}
/**
* g_test_bug_base:
* @uri_pattern: the base pattern for bug URIs
*
* Specify the base URI for bug reports.
*
* The base URI is used to construct bug report messages for
* g_test_message() when g_test_bug() is called.
* Calling this function outside of a test case sets the
* default base URI for all test cases. Calling it from within
* a test case changes the base URI for the scope of the test
* case only.
* Bug URIs are constructed by appending a bug specific URI
* portion to @uri_pattern, or by replacing the special string
* '\%s' within @uri_pattern if that is present.
*
* Since: 2.16
*/
void
g_test_bug_base (const char *uri_pattern)
{
g_free (test_uri_base);
test_uri_base = g_strdup (uri_pattern);
}
/**
* g_test_bug:
* @bug_uri_snippet: Bug specific bug tracker URI portion.
*
* This function adds a message to test reports that
* associates a bug URI with a test case.
* Bug URIs are constructed from a base URI set with g_test_bug_base()
* and @bug_uri_snippet.
*
* Since: 2.16
*/
void
g_test_bug (const char *bug_uri_snippet)
{
char *c;
g_return_if_fail (test_uri_base != NULL);
g_return_if_fail (bug_uri_snippet != NULL);
c = strstr (test_uri_base, "%s");
if (c)
{
char *b = g_strndup (test_uri_base, c - test_uri_base);
char *s = g_strconcat (b, bug_uri_snippet, c + 2, NULL);
g_free (b);
g_test_message ("Bug Reference: %s", s);
g_free (s);
}
else
g_test_message ("Bug Reference: %s%s", test_uri_base, bug_uri_snippet);
}
/**
* g_test_get_root:
*
* Get the toplevel test suite for the test path API.
*
* Returns: the toplevel #GTestSuite
*
* Since: 2.16
*/
GTestSuite*
g_test_get_root (void)
{
if (!test_suite_root)
{
test_suite_root = g_test_create_suite ("root");
g_free (test_suite_root->name);
test_suite_root->name = g_strdup ("");
}
return test_suite_root;
}
/**
* g_test_run:
*
* Runs all tests under the toplevel suite which can be retrieved
* with g_test_get_root(). Similar to g_test_run_suite(), the test
* cases to be run are filtered according to
* test path arguments (-p <replaceable>testpath</replaceable>) as
* parsed by g_test_init().
* g_test_run_suite() or g_test_run() may only be called once
* in a program.
*
* Returns: 0 on success
*
* Since: 2.16
*/
int
g_test_run (void)
{
return g_test_run_suite (g_test_get_root());
}
/**
* g_test_create_case:
* @test_name: the name for the test case
* @data_size: the size of the fixture data structure
* @test_data: test data argument for the test functions
* @data_setup: the function to set up the fixture data
* @data_test: the actual test function
* @data_teardown: the function to teardown the fixture data
*
* Create a new #GTestCase, named @test_name, this API is fairly
* low level, calling g_test_add() or g_test_add_func() is preferable.
* When this test is executed, a fixture structure of size @data_size
* will be allocated and filled with 0s. Then data_setup() is called
* to initialize the fixture. After fixture setup, the actual test
* function data_test() is called. Once the test run completed, the
* fixture structure is torn down by calling data_teardown() and
* after that the memory is released.
*
* Splitting up a test run into fixture setup, test function and
* fixture teardown is most usful if the same fixture is used for
* multiple tests. In this cases, g_test_create_case() will be
* called with the same fixture, but varying @test_name and
* @data_test arguments.
*
* Returns: a newly allocated #GTestCase.
*
* Since: 2.16
*/
GTestCase*
g_test_create_case (const char *test_name,
gsize data_size,
gconstpointer test_data,
GTestFixtureFunc data_setup,
GTestFixtureFunc data_test,
GTestFixtureFunc data_teardown)
{
GTestCase *tc;
g_return_val_if_fail (test_name != NULL, NULL);
g_return_val_if_fail (strchr (test_name, '/') == NULL, NULL);
g_return_val_if_fail (test_name[0] != 0, NULL);
g_return_val_if_fail (data_test != NULL, NULL);
tc = g_slice_new0 (GTestCase);
tc->name = g_strdup (test_name);
tc->test_data = (gpointer) test_data;
tc->fixture_size = data_size;
tc->fixture_setup = (void*) data_setup;
tc->fixture_test = (void*) data_test;
tc->fixture_teardown = (void*) data_teardown;
return tc;
}
/**
* GTestFixtureFunc:
* @fixture: the test fixture
* @user_data: the data provided when registering the test
*
* The type used for functions that operate on test fixtures. This is
* used for the fixture setup and teardown functions as well as for the
* testcases themselves.
*
* @user_data is a pointer to the data that was given when registering
* the test case.
*
* @fixture will be a pointer to the area of memory allocated by the
* test framework, of the size requested. If the requested size was
* zero then @fixture will be equal to @user_data.
*
* Since: 2.28
*/
void
g_test_add_vtable (const char *testpath,
gsize data_size,
gconstpointer test_data,
GTestFixtureFunc data_setup,
GTestFixtureFunc fixture_test_func,
GTestFixtureFunc data_teardown)
{
gchar **segments;
guint ui;
GTestSuite *suite;
g_return_if_fail (testpath != NULL);
g_return_if_fail (testpath[0] == '/');
g_return_if_fail (fixture_test_func != NULL);
suite = g_test_get_root();
segments = g_strsplit (testpath, "/", -1);
for (ui = 0; segments[ui] != NULL; ui++)
{
const char *seg = segments[ui];
gboolean islast = segments[ui + 1] == NULL;
if (islast && !seg[0])
g_error ("invalid test case path: %s", testpath);
else if (!seg[0])
continue; /* initial or duplicate slash */
else if (!islast)
{
GTestSuite *csuite = g_test_create_suite (seg);
g_test_suite_add_suite (suite, csuite);
suite = csuite;
}
else /* islast */
{
GTestCase *tc = g_test_create_case (seg, data_size, test_data, data_setup, fixture_test_func, data_teardown);
g_test_suite_add (suite, tc);
}
}
g_strfreev (segments);
}
/**
* g_test_fail:
*
* Indicates that a test failed. This function can be called
* multiple times from the same test. You can use this function
* if your test failed in a recoverable way.
*
* Do not use this function if the failure of a test could cause
* other tests to malfunction.
*
* Calling this function will not stop the test from running, you
* need to return from the test function yourself. So you can
* produce additional diagnostic messages or even continue running
* the test.
*
* If not called from inside a test, this function does nothing.
*
* Since: 2.30
**/
void
g_test_fail (void)
{
test_run_success = FALSE;
}
/**
* GTestFunc:
*
* The type used for test case functions.
*
* Since: 2.28
*/
/**
* g_test_add_func:
* @testpath: Slash-separated test case path name for the test.
* @test_func: The test function to invoke for this test.
*
* Create a new test case, similar to g_test_create_case(). However
* the test is assumed to use no fixture, and test suites are automatically
* created on the fly and added to the root fixture, based on the
* slash-separated portions of @testpath.
*
* Since: 2.16
*/
void
g_test_add_func (const char *testpath,
GTestFunc test_func)
{
g_return_if_fail (testpath != NULL);
g_return_if_fail (testpath[0] == '/');
g_return_if_fail (test_func != NULL);
g_test_add_vtable (testpath, 0, NULL, NULL, (GTestFixtureFunc) test_func, NULL);
}
/**
* GTestDataFunc:
* @user_data: the data provided when registering the test
*
* The type used for test case functions that take an extra pointer
* argument.
*
* Since: 2.28
*/
/**
* g_test_add_data_func:
* @testpath: Slash-separated test case path name for the test.
* @test_data: Test data argument for the test function.
* @test_func: The test function to invoke for this test.
*
* Create a new test case, similar to g_test_create_case(). However
* the test is assumed to use no fixture, and test suites are automatically
* created on the fly and added to the root fixture, based on the
* slash-separated portions of @testpath. The @test_data argument
* will be passed as first argument to @test_func.
*
* Since: 2.16
*/
void
g_test_add_data_func (const char *testpath,
gconstpointer test_data,
GTestDataFunc test_func)
{
g_return_if_fail (testpath != NULL);
g_return_if_fail (testpath[0] == '/');
g_return_if_fail (test_func != NULL);
g_test_add_vtable (testpath, 0, test_data, NULL, (GTestFixtureFunc) test_func, NULL);
}
/**
* g_test_create_suite:
* @suite_name: a name for the suite
*
* Create a new test suite with the name @suite_name.
*
* Returns: A newly allocated #GTestSuite instance.
*
* Since: 2.16
*/
GTestSuite*
g_test_create_suite (const char *suite_name)
{
GTestSuite *ts;
g_return_val_if_fail (suite_name != NULL, NULL);
g_return_val_if_fail (strchr (suite_name, '/') == NULL, NULL);
g_return_val_if_fail (suite_name[0] != 0, NULL);
ts = g_slice_new0 (GTestSuite);
ts->name = g_strdup (suite_name);
return ts;
}
/**
* g_test_suite_add:
* @suite: a #GTestSuite
* @test_case: a #GTestCase
*
* Adds @test_case to @suite.
*
* Since: 2.16
*/
void
g_test_suite_add (GTestSuite *suite,
GTestCase *test_case)
{
g_return_if_fail (suite != NULL);
g_return_if_fail (test_case != NULL);
suite->cases = g_slist_prepend (suite->cases, test_case);
}
/**
* g_test_suite_add_suite:
* @suite: a #GTestSuite
* @nestedsuite: another #GTestSuite
*
* Adds @nestedsuite to @suite.
*
* Since: 2.16
*/
void
g_test_suite_add_suite (GTestSuite *suite,
GTestSuite *nestedsuite)
{
g_return_if_fail (suite != NULL);
g_return_if_fail (nestedsuite != NULL);
suite->suites = g_slist_prepend (suite->suites, nestedsuite);
}
/**
* g_test_queue_free:
* @gfree_pointer: the pointer to be stored.
*
* Enqueue a pointer to be released with g_free() during the next
* teardown phase. This is equivalent to calling g_test_queue_destroy()
* with a destroy callback of g_free().
*
* Since: 2.16
*/
void
g_test_queue_free (gpointer gfree_pointer)
{
if (gfree_pointer)
g_test_queue_destroy (g_free, gfree_pointer);
}
/**
* g_test_queue_destroy:
* @destroy_func: Destroy callback for teardown phase.
* @destroy_data: Destroy callback data.
*
* This function enqueus a callback @destroy_func() to be executed
* during the next test case teardown phase. This is most useful
* to auto destruct allocted test resources at the end of a test run.
* Resources are released in reverse queue order, that means enqueueing
* callback A before callback B will cause B() to be called before
* A() during teardown.
*
* Since: 2.16
*/
void
g_test_queue_destroy (GDestroyNotify destroy_func,
gpointer destroy_data)
{
DestroyEntry *dentry;
g_return_if_fail (destroy_func != NULL);
dentry = g_slice_new0 (DestroyEntry);
dentry->destroy_func = destroy_func;
dentry->destroy_data = destroy_data;
dentry->next = test_destroy_queue;
test_destroy_queue = dentry;
}
static gboolean
test_case_run (GTestCase *tc)
{
gchar *old_name = test_run_name, *old_base = g_strdup (test_uri_base);
gboolean success = TRUE;
test_run_name = g_strconcat (old_name, "/", tc->name, NULL);
if (++test_run_count <= test_skip_count)
g_test_log (G_TEST_LOG_SKIP_CASE, test_run_name, NULL, 0, NULL);
else if (test_run_list)
{
g_print ("%s\n", test_run_name);
g_test_log (G_TEST_LOG_LIST_CASE, test_run_name, NULL, 0, NULL);
}
else
{
GTimer *test_run_timer = g_timer_new();
long double largs[3];
void *fixture;
g_test_log (G_TEST_LOG_START_CASE, test_run_name, NULL, 0, NULL);
test_run_forks = 0;
test_run_success = TRUE;
g_test_log_set_fatal_handler (NULL, NULL);
g_timer_start (test_run_timer);
fixture = tc->fixture_size ? g_malloc0 (tc->fixture_size) : tc->test_data;
test_run_seed (test_run_seedstr);
if (tc->fixture_setup)
tc->fixture_setup (fixture, tc->test_data);
tc->fixture_test (fixture, tc->test_data);
test_trap_clear();
while (test_destroy_queue)
{
DestroyEntry *dentry = test_destroy_queue;
test_destroy_queue = dentry->next;
dentry->destroy_func (dentry->destroy_data);
g_slice_free (DestroyEntry, dentry);
}
if (tc->fixture_teardown)
tc->fixture_teardown (fixture, tc->test_data);
if (tc->fixture_size)
g_free (fixture);
g_timer_stop (test_run_timer);
success = test_run_success;
test_run_success = FALSE;
largs[0] = success ? 0 : 1; /* OK */
largs[1] = test_run_forks;
largs[2] = g_timer_elapsed (test_run_timer, NULL);
g_test_log (G_TEST_LOG_STOP_CASE, NULL, NULL, G_N_ELEMENTS (largs), largs);
g_timer_destroy (test_run_timer);
}
g_free (test_run_name);
test_run_name = old_name;
g_free (test_uri_base);
test_uri_base = old_base;
return success;
}
static int
g_test_run_suite_internal (GTestSuite *suite,
const char *path)
{
guint n_bad = 0, l;
gchar *rest, *old_name = test_run_name;
GSList *slist, *reversed;
g_return_val_if_fail (suite != NULL, -1);
while (path[0] == '/')
path++;
l = strlen (path);
rest = strchr (path, '/');
l = rest ? MIN (l, rest - path) : l;
test_run_name = suite->name[0] == 0 ? g_strdup (test_run_name) : g_strconcat (old_name, "/", suite->name, NULL);
reversed = g_slist_reverse (g_slist_copy (suite->cases));
for (slist = reversed; slist; slist = slist->next)
{
GTestCase *tc = slist->data;
guint n = l ? strlen (tc->name) : 0;
if (l == n && strncmp (path, tc->name, n) == 0)
{
if (!test_case_run (tc))
n_bad++;
}
}
g_slist_free (reversed);
reversed = g_slist_reverse (g_slist_copy (suite->suites));
for (slist = reversed; slist; slist = slist->next)
{
GTestSuite *ts = slist->data;
guint n = l ? strlen (ts->name) : 0;
if (l == n && strncmp (path, ts->name, n) == 0)
n_bad += g_test_run_suite_internal (ts, rest ? rest : "");
}
g_slist_free (reversed);
g_free (test_run_name);
test_run_name = old_name;
return n_bad;
}
/**
* g_test_run_suite:
* @suite: a #GTestSuite
*
* Execute the tests within @suite and all nested #GTestSuites.
* The test suites to be executed are filtered according to
* test path arguments (-p <replaceable>testpath</replaceable>)
* as parsed by g_test_init().
* g_test_run_suite() or g_test_run() may only be called once
* in a program.
*
* Returns: 0 on success
*
* Since: 2.16
*/
int
g_test_run_suite (GTestSuite *suite)
{
guint n_bad = 0;
g_return_val_if_fail (g_test_config_vars->test_initialized, -1);
g_return_val_if_fail (g_test_run_once == TRUE, -1);
g_test_run_once = FALSE;
if (!test_paths)
test_paths = g_slist_prepend (test_paths, "");
while (test_paths)
{
const char *rest, *path = test_paths->data;
guint l, n = strlen (suite->name);
test_paths = g_slist_delete_link (test_paths, test_paths);
while (path[0] == '/')
path++;
if (!n) /* root suite, run unconditionally */
{
n_bad += g_test_run_suite_internal (suite, path);
continue;
}
/* regular suite, match path */
rest = strchr (path, '/');
l = strlen (path);
l = rest ? MIN (l, rest - path) : l;
if ((!l || l == n) && strncmp (path, suite->name, n) == 0)
n_bad += g_test_run_suite_internal (suite, rest ? rest : "");
}
return n_bad;
}
static void
gtest_default_log_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer unused_data)
{
const gchar *strv[16];
gboolean fatal = FALSE;
gchar *msg;
guint i = 0;
if (log_domain)
{
strv[i++] = log_domain;
strv[i++] = "-";
}
if (log_level & G_LOG_FLAG_FATAL)
{
strv[i++] = "FATAL-";
fatal = TRUE;
}
if (log_level & G_LOG_FLAG_RECURSION)
strv[i++] = "RECURSIVE-";
if (log_level & G_LOG_LEVEL_ERROR)
strv[i++] = "ERROR";
if (log_level & G_LOG_LEVEL_CRITICAL)
strv[i++] = "CRITICAL";
if (log_level & G_LOG_LEVEL_WARNING)
strv[i++] = "WARNING";
if (log_level & G_LOG_LEVEL_MESSAGE)
strv[i++] = "MESSAGE";
if (log_level & G_LOG_LEVEL_INFO)
strv[i++] = "INFO";
if (log_level & G_LOG_LEVEL_DEBUG)
strv[i++] = "DEBUG";
strv[i++] = ": ";
strv[i++] = message;
strv[i++] = NULL;
msg = g_strjoinv ("", (gchar**) strv);
g_test_log (fatal ? G_TEST_LOG_ERROR : G_TEST_LOG_MESSAGE, msg, NULL, 0, NULL);
g_log_default_handler (log_domain, log_level, message, unused_data);
g_free (msg);
}
void
g_assertion_message (const char *domain,
const char *file,
int line,
const char *func,
const char *message)
{
char lstr[32];
char *s;
if (!message)
message = "code should not be reached";
g_snprintf (lstr, 32, "%d", line);
s = g_strconcat (domain ? domain : "", domain && domain[0] ? ":" : "",
"ERROR:", file, ":", lstr, ":",
func, func[0] ? ":" : "",
" ", message, NULL);
g_printerr ("**\n%s\n", s);
/* store assertion message in global variable, so that it can be found in a
* core dump */
if (__glib_assert_msg != NULL)
/* free the old one */
free (__glib_assert_msg);
__glib_assert_msg = (char*) malloc (strlen (s) + 1);
strcpy (__glib_assert_msg, s);
g_test_log (G_TEST_LOG_ERROR, s, NULL, 0, NULL);
g_free (s);
abort();
}
void
g_assertion_message_expr (const char *domain,
const char *file,
int line,
const char *func,
const char *expr)
{
char *s = g_strconcat ("assertion failed: (", expr, ")", NULL);
g_assertion_message (domain, file, line, func, s);
g_free (s);
}
void
g_assertion_message_cmpnum (const char *domain,
const char *file,
int line,
const char *func,
const char *expr,
long double arg1,
const char *cmp,
long double arg2,
char numtype)
{
char *s = NULL;
switch (numtype)
{
case 'i': s = g_strdup_printf ("assertion failed (%s): (%.0Lf %s %.0Lf)", expr, arg1, cmp, arg2); break;
case 'x': s = g_strdup_printf ("assertion failed (%s): (0x%08" G_GINT64_MODIFIER "x %s 0x%08" G_GINT64_MODIFIER "x)", expr, (guint64) arg1, cmp, (guint64) arg2); break;
case 'f': s = g_strdup_printf ("assertion failed (%s): (%.9Lg %s %.9Lg)", expr, arg1, cmp, arg2); break;
/* ideally use: floats=%.7g double=%.17g */
}
g_assertion_message (domain, file, line, func, s);
g_free (s);
}
void
g_assertion_message_cmpstr (const char *domain,
const char *file,
int line,
const char *func,
const char *expr,
const char *arg1,
const char *cmp,
const char *arg2)
{
char *a1, *a2, *s, *t1 = NULL, *t2 = NULL;
a1 = arg1 ? g_strconcat ("\"", t1 = g_strescape (arg1, NULL), "\"", NULL) : g_strdup ("NULL");
a2 = arg2 ? g_strconcat ("\"", t2 = g_strescape (arg2, NULL), "\"", NULL) : g_strdup ("NULL");
g_free (t1);
g_free (t2);
s = g_strdup_printf ("assertion failed (%s): (%s %s %s)", expr, a1, cmp, a2);
g_free (a1);
g_free (a2);
g_assertion_message (domain, file, line, func, s);
g_free (s);
}
void
g_assertion_message_error (const char *domain,
const char *file,
int line,
const char *func,
const char *expr,
const GError *error,
GQuark error_domain,
int error_code)
{
GString *gstring;
/* This is used by both g_assert_error() and g_assert_no_error(), so there
* are three cases: expected an error but got the wrong error, expected
* an error but got no error, and expected no error but got an error.
*/
gstring = g_string_new ("assertion failed ");
if (error_domain)
g_string_append_printf (gstring, "(%s == (%s, %d)): ", expr,
g_quark_to_string (error_domain), error_code);
else
g_string_append_printf (gstring, "(%s == NULL): ", expr);
if (error)
g_string_append_printf (gstring, "%s (%s, %d)", error->message,
g_quark_to_string (error->domain), error->code);
else
g_string_append_printf (gstring, "%s is NULL", expr);
g_assertion_message (domain, file, line, func, gstring->str);
g_string_free (gstring, TRUE);
}
/**
* g_strcmp0:
* @str1: a C string or %NULL
* @str2: another C string or %NULL
*
* Compares @str1 and @str2 like strcmp(). Handles %NULL
* gracefully by sorting it before non-%NULL strings.
* Comparing two %NULL pointers returns 0.
*
* Returns: -1, 0 or 1, if @str1 is <, == or > than @str2.
*
* Since: 2.16
*/
int
g_strcmp0 (const char *str1,
const char *str2)
{
if (!str1)
return -(str1 != str2);
if (!str2)
return str1 != str2;
return strcmp (str1, str2);
}
#ifdef G_OS_UNIX
static int /* 0 on success */
kill_child (int pid,
int *status,
int patience)
{
int wr;
if (patience >= 3) /* try graceful reap */
{
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
}
if (patience >= 2) /* try SIGHUP */
{
kill (pid, SIGHUP);
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
g_usleep (20 * 1000); /* give it some scheduling/shutdown time */
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
g_usleep (50 * 1000); /* give it some scheduling/shutdown time */
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
g_usleep (100 * 1000); /* give it some scheduling/shutdown time */
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
}
if (patience >= 1) /* try SIGTERM */
{
kill (pid, SIGTERM);
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
g_usleep (200 * 1000); /* give it some scheduling/shutdown time */
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
g_usleep (400 * 1000); /* give it some scheduling/shutdown time */
if (waitpid (pid, status, WNOHANG) > 0)
return 0;
}
/* finish it off */
kill (pid, SIGKILL);
do
wr = waitpid (pid, status, 0);
while (wr < 0 && errno == EINTR);
return wr;
}
#endif
static inline int
g_string_must_read (GString *gstring,
int fd)
{
#define STRING_BUFFER_SIZE 4096
char buf[STRING_BUFFER_SIZE];
gssize bytes;
again:
bytes = read (fd, buf, sizeof (buf));
if (bytes == 0)
return 0; /* EOF, calling this function assumes data is available */
else if (bytes > 0)
{
g_string_append_len (gstring, buf, bytes);
return 1;
}
else if (bytes < 0 && errno == EINTR)
goto again;
else /* bytes < 0 */
{
g_warning ("failed to read() from child process (%d): %s", test_trap_last_pid, g_strerror (errno));
return 1; /* ignore error after warning */
}
}
static inline void
g_string_write_out (GString *gstring,
int outfd,
int *stringpos)
{
if (*stringpos < gstring->len)
{
int r;
do
r = write (outfd, gstring->str + *stringpos, gstring->len - *stringpos);
while (r < 0 && errno == EINTR);
*stringpos += MAX (r, 0);
}
}
static void
test_trap_clear (void)
{
test_trap_last_status = 0;
test_trap_last_pid = 0;
g_free (test_trap_last_stdout);
test_trap_last_stdout = NULL;
g_free (test_trap_last_stderr);
test_trap_last_stderr = NULL;
}
#ifdef G_OS_UNIX
static int
sane_dup2 (int fd1,
int fd2)
{
int ret;
do
ret = dup2 (fd1, fd2);
while (ret < 0 && errno == EINTR);
return ret;
}
static guint64
test_time_stamp (void)
{
GTimeVal tv;
guint64 stamp;
g_get_current_time (&tv);
stamp = tv.tv_sec;
stamp = stamp * 1000000 + tv.tv_usec;
return stamp;
}
#endif
/**
* g_test_trap_fork:
* @usec_timeout: Timeout for the forked test in micro seconds.
* @test_trap_flags: Flags to modify forking behaviour.
*
* Fork the current test program to execute a test case that might
* not return or that might abort. The forked test case is aborted
* and considered failing if its run time exceeds @usec_timeout.
*
* The forking behavior can be configured with the #GTestTrapFlags flags.
*
* In the following example, the test code forks, the forked child
* process produces some sample output and exits successfully.
* The forking parent process then asserts successful child program
* termination and validates child program outputs.
*
* |[
* static void
* test_fork_patterns (void)
* {
* if (g_test_trap_fork (0, G_TEST_TRAP_SILENCE_STDOUT | G_TEST_TRAP_SILENCE_STDERR))
* {
* g_print ("some stdout text: somagic17\n");
* g_printerr ("some stderr text: semagic43\n");
* exit (0); /&ast; successful test run &ast;/
* }
* g_test_trap_assert_passed();
* g_test_trap_assert_stdout ("*somagic17*");
* g_test_trap_assert_stderr ("*semagic43*");
* }
* ]|
*
* This function is implemented only on Unix platforms.
*
* Returns: %TRUE for the forked child and %FALSE for the executing parent process.
*
* Since: 2.16
*/
gboolean
g_test_trap_fork (guint64 usec_timeout,
GTestTrapFlags test_trap_flags)
{
#ifdef G_OS_UNIX
gboolean pass_on_forked_log = FALSE;
int stdout_pipe[2] = { -1, -1 };
int stderr_pipe[2] = { -1, -1 };
int stdtst_pipe[2] = { -1, -1 };
test_trap_clear();
if (pipe (stdout_pipe) < 0 || pipe (stderr_pipe) < 0 || pipe (stdtst_pipe) < 0)
g_error ("failed to create pipes to fork test program: %s", g_strerror (errno));
signal (SIGCHLD, SIG_DFL);
test_trap_last_pid = fork ();
if (test_trap_last_pid < 0)
g_error ("failed to fork test program: %s", g_strerror (errno));
if (test_trap_last_pid == 0) /* child */
{
int fd0 = -1;
close (stdout_pipe[0]);
close (stderr_pipe[0]);
close (stdtst_pipe[0]);
if (!(test_trap_flags & G_TEST_TRAP_INHERIT_STDIN))
fd0 = open ("/dev/null", O_RDONLY);
if (sane_dup2 (stdout_pipe[1], 1) < 0 || sane_dup2 (stderr_pipe[1], 2) < 0 || (fd0 >= 0 && sane_dup2 (fd0, 0) < 0))
g_error ("failed to dup2() in forked test program: %s", g_strerror (errno));
if (fd0 >= 3)
close (fd0);
if (stdout_pipe[1] >= 3)
close (stdout_pipe[1]);
if (stderr_pipe[1] >= 3)
close (stderr_pipe[1]);
test_log_fd = stdtst_pipe[1];
return TRUE;
}
else /* parent */
{
GString *sout = g_string_new (NULL);
GString *serr = g_string_new (NULL);
guint64 sstamp;
int soutpos = 0, serrpos = 0, wr, need_wait = TRUE;
test_run_forks++;
close (stdout_pipe[1]);
close (stderr_pipe[1]);
close (stdtst_pipe[1]);
sstamp = test_time_stamp();
/* read data until we get EOF on all pipes */
while (stdout_pipe[0] >= 0 || stderr_pipe[0] >= 0 || stdtst_pipe[0] > 0)
{
fd_set fds;
struct timeval tv;
int ret;
FD_ZERO (&fds);
if (stdout_pipe[0] >= 0)
FD_SET (stdout_pipe[0], &fds);
if (stderr_pipe[0] >= 0)
FD_SET (stderr_pipe[0], &fds);
if (stdtst_pipe[0] >= 0)
FD_SET (stdtst_pipe[0], &fds);
tv.tv_sec = 0;
tv.tv_usec = MIN (usec_timeout ? usec_timeout : 1000000, 100 * 1000); /* sleep at most 0.5 seconds to catch clock skews, etc. */
ret = select (MAX (MAX (stdout_pipe[0], stderr_pipe[0]), stdtst_pipe[0]) + 1, &fds, NULL, NULL, &tv);
if (ret < 0 && errno != EINTR)
{
g_warning ("Unexpected error in select() while reading from child process (%d): %s", test_trap_last_pid, g_strerror (errno));
break;
}
if (stdout_pipe[0] >= 0 && FD_ISSET (stdout_pipe[0], &fds) &&
g_string_must_read (sout, stdout_pipe[0]) == 0)
{
close (stdout_pipe[0]);
stdout_pipe[0] = -1;
}
if (stderr_pipe[0] >= 0 && FD_ISSET (stderr_pipe[0], &fds) &&
g_string_must_read (serr, stderr_pipe[0]) == 0)
{
close (stderr_pipe[0]);
stderr_pipe[0] = -1;
}
if (stdtst_pipe[0] >= 0 && FD_ISSET (stdtst_pipe[0], &fds))
{
guint8 buffer[4096];
gint l, r = read (stdtst_pipe[0], buffer, sizeof (buffer));
if (r > 0 && test_log_fd > 0)
do
l = write (pass_on_forked_log ? test_log_fd : -1, buffer, r);
while (l < 0 && errno == EINTR);
if (r == 0 || (r < 0 && errno != EINTR && errno != EAGAIN))
{
close (stdtst_pipe[0]);
stdtst_pipe[0] = -1;
}
}
if (!(test_trap_flags & G_TEST_TRAP_SILENCE_STDOUT))
g_string_write_out (sout, 1, &soutpos);
if (!(test_trap_flags & G_TEST_TRAP_SILENCE_STDERR))
g_string_write_out (serr, 2, &serrpos);
if (usec_timeout)
{
guint64 nstamp = test_time_stamp();
int status = 0;
sstamp = MIN (sstamp, nstamp); /* guard against backwards clock skews */
if (usec_timeout < nstamp - sstamp)
{
/* timeout reached, need to abort the child now */
kill_child (test_trap_last_pid, &status, 3);
test_trap_last_status = 1024; /* timeout */
if (0 && WIFSIGNALED (status))
g_printerr ("%s: child timed out and received: %s\n", G_STRFUNC, g_strsignal (WTERMSIG (status)));
need_wait = FALSE;
break;
}
}
}
if (stdout_pipe[0] != -1)
close (stdout_pipe[0]);
if (stderr_pipe[0] != -1)
close (stderr_pipe[0]);
if (stdtst_pipe[0] != -1)
close (stdtst_pipe[0]);
if (need_wait)
{
int status = 0;
do
wr = waitpid (test_trap_last_pid, &status, 0);
while (wr < 0 && errno == EINTR);
if (WIFEXITED (status)) /* normal exit */
test_trap_last_status = WEXITSTATUS (status); /* 0..255 */
else if (WIFSIGNALED (status))
test_trap_last_status = (WTERMSIG (status) << 12); /* signalled */
else /* WCOREDUMP (status) */
test_trap_last_status = 512; /* coredump */
}
test_trap_last_stdout = g_string_free (sout, FALSE);
test_trap_last_stderr = g_string_free (serr, FALSE);
return FALSE;
}
#else
g_message ("Not implemented: g_test_trap_fork");
return FALSE;
#endif
}
/**
* g_test_trap_has_passed:
*
* Check the result of the last g_test_trap_fork() call.
*
* Returns: %TRUE if the last forked child terminated successfully.
*
* Since: 2.16
*/
gboolean
g_test_trap_has_passed (void)
{
return test_trap_last_status == 0; /* exit_status == 0 && !signal && !coredump */
}
/**
* g_test_trap_reached_timeout:
*
* Check the result of the last g_test_trap_fork() call.
*
* Returns: %TRUE if the last forked child got killed due to a fork timeout.
*
* Since: 2.16
*/
gboolean
g_test_trap_reached_timeout (void)
{
return 0 != (test_trap_last_status & 1024); /* timeout flag */
}
void
g_test_trap_assertions (const char *domain,
const char *file,
int line,
const char *func,
guint64 assertion_flags, /* 0-pass, 1-fail, 2-outpattern, 4-errpattern */
const char *pattern)
{
#ifdef G_OS_UNIX
gboolean must_pass = assertion_flags == 0;
gboolean must_fail = assertion_flags == 1;
gboolean match_result = 0 == (assertion_flags & 1);
const char *stdout_pattern = (assertion_flags & 2) ? pattern : NULL;
const char *stderr_pattern = (assertion_flags & 4) ? pattern : NULL;
const char *match_error = match_result ? "failed to match" : "contains invalid match";
if (test_trap_last_pid == 0)
g_error ("child process failed to exit after g_test_trap_fork() and before g_test_trap_assert*()");
if (must_pass && !g_test_trap_has_passed())
{
char *msg = g_strdup_printf ("child process (%d) of test trap failed unexpectedly", test_trap_last_pid);
g_assertion_message (domain, file, line, func, msg);
g_free (msg);
}
if (must_fail && g_test_trap_has_passed())
{
char *msg = g_strdup_printf ("child process (%d) did not fail as expected", test_trap_last_pid);
g_assertion_message (domain, file, line, func, msg);
g_free (msg);
}
if (stdout_pattern && match_result == !g_pattern_match_simple (stdout_pattern, test_trap_last_stdout))
{
char *msg = g_strdup_printf ("stdout of child process (%d) %s: %s", test_trap_last_pid, match_error, stdout_pattern);
g_assertion_message (domain, file, line, func, msg);
g_free (msg);
}
if (stderr_pattern && match_result == !g_pattern_match_simple (stderr_pattern, test_trap_last_stderr))
{
char *msg = g_strdup_printf ("stderr of child process (%d) %s: %s", test_trap_last_pid, match_error, stderr_pattern);
g_assertion_message (domain, file, line, func, msg);
g_free (msg);
}
#endif
}
static void
gstring_overwrite_int (GString *gstring,
guint pos,
guint32 vuint)
{
vuint = g_htonl (vuint);
g_string_overwrite_len (gstring, pos, (const gchar*) &vuint, 4);
}
static void
gstring_append_int (GString *gstring,
guint32 vuint)
{
vuint = g_htonl (vuint);
g_string_append_len (gstring, (const gchar*) &vuint, 4);
}
static void
gstring_append_double (GString *gstring,
double vdouble)
{
union { double vdouble; guint64 vuint64; } u;
u.vdouble = vdouble;
u.vuint64 = GUINT64_TO_BE (u.vuint64);
g_string_append_len (gstring, (const gchar*) &u.vuint64, 8);
}
static guint8*
g_test_log_dump (GTestLogMsg *msg,
guint *len)
{
GString *gstring = g_string_sized_new (1024);
guint ui;
gstring_append_int (gstring, 0); /* message length */
gstring_append_int (gstring, msg->log_type);
gstring_append_int (gstring, msg->n_strings);
gstring_append_int (gstring, msg->n_nums);
gstring_append_int (gstring, 0); /* reserved */
for (ui = 0; ui < msg->n_strings; ui++)
{
guint l = strlen (msg->strings[ui]);
gstring_append_int (gstring, l);
g_string_append_len (gstring, msg->strings[ui], l);
}
for (ui = 0; ui < msg->n_nums; ui++)
gstring_append_double (gstring, msg->nums[ui]);
*len = gstring->len;
gstring_overwrite_int (gstring, 0, *len); /* message length */
return (guint8*) g_string_free (gstring, FALSE);
}
static inline long double
net_double (const gchar **ipointer)
{
union { guint64 vuint64; double vdouble; } u;
guint64 aligned_int64;
memcpy (&aligned_int64, *ipointer, 8);
*ipointer += 8;
u.vuint64 = GUINT64_FROM_BE (aligned_int64);
return u.vdouble;
}
static inline guint32
net_int (const gchar **ipointer)
{
guint32 aligned_int;
memcpy (&aligned_int, *ipointer, 4);
*ipointer += 4;
return g_ntohl (aligned_int);
}
static gboolean
g_test_log_extract (GTestLogBuffer *tbuffer)
{
const gchar *p = tbuffer->data->str;
GTestLogMsg msg;
guint mlength;
if (tbuffer->data->len < 4 * 5)
return FALSE;
mlength = net_int (&p);
if (tbuffer->data->len < mlength)
return FALSE;
msg.log_type = net_int (&p);
msg.n_strings = net_int (&p);
msg.n_nums = net_int (&p);
if (net_int (&p) == 0)
{
guint ui;
msg.strings = g_new0 (gchar*, msg.n_strings + 1);
msg.nums = g_new0 (long double, msg.n_nums);
for (ui = 0; ui < msg.n_strings; ui++)
{
guint sl = net_int (&p);
msg.strings[ui] = g_strndup (p, sl);
p += sl;
}
for (ui = 0; ui < msg.n_nums; ui++)
msg.nums[ui] = net_double (&p);
if (p <= tbuffer->data->str + mlength)
{
g_string_erase (tbuffer->data, 0, mlength);
tbuffer->msgs = g_slist_prepend (tbuffer->msgs, g_memdup (&msg, sizeof (msg)));
return TRUE;
}
}
g_free (msg.nums);
g_strfreev (msg.strings);
g_error ("corrupt log stream from test program");
return FALSE;
}
/**
* g_test_log_buffer_new:
*
* Internal function for gtester to decode test log messages, no ABI guarantees provided.
*/
GTestLogBuffer*
g_test_log_buffer_new (void)
{
GTestLogBuffer *tb = g_new0 (GTestLogBuffer, 1);
tb->data = g_string_sized_new (1024);
return tb;
}
/**
* g_test_log_buffer_free
*
* Internal function for gtester to free test log messages, no ABI guarantees provided.
*/
void
g_test_log_buffer_free (GTestLogBuffer *tbuffer)
{
g_return_if_fail (tbuffer != NULL);
while (tbuffer->msgs)
g_test_log_msg_free (g_test_log_buffer_pop (tbuffer));
g_string_free (tbuffer->data, TRUE);
g_free (tbuffer);
}
/**
* g_test_log_buffer_push
*
* Internal function for gtester to decode test log messages, no ABI guarantees provided.
*/
void
g_test_log_buffer_push (GTestLogBuffer *tbuffer,
guint n_bytes,
const guint8 *bytes)
{
g_return_if_fail (tbuffer != NULL);
if (n_bytes)
{
gboolean more_messages;
g_return_if_fail (bytes != NULL);
g_string_append_len (tbuffer->data, (const gchar*) bytes, n_bytes);
do
more_messages = g_test_log_extract (tbuffer);
while (more_messages);
}
}
/**
* g_test_log_buffer_pop:
*
* Internal function for gtester to retrieve test log messages, no ABI guarantees provided.
*/
GTestLogMsg*
g_test_log_buffer_pop (GTestLogBuffer *tbuffer)
{
GTestLogMsg *msg = NULL;
g_return_val_if_fail (tbuffer != NULL, NULL);
if (tbuffer->msgs)
{
GSList *slist = g_slist_last (tbuffer->msgs);
msg = slist->data;
tbuffer->msgs = g_slist_delete_link (tbuffer->msgs, slist);
}
return msg;
}
/**
* g_test_log_msg_free:
*
* Internal function for gtester to free test log messages, no ABI guarantees provided.
*/
void
g_test_log_msg_free (GTestLogMsg *tmsg)
{
g_return_if_fail (tmsg != NULL);
g_strfreev (tmsg->strings);
g_free (tmsg->nums);
g_free (tmsg);
}
/* --- macros docs START --- */
/**
* g_test_add:
* @testpath: The test path for a new test case.
* @Fixture: The type of a fixture data structure.
* @tdata: Data argument for the test functions.
* @fsetup: The function to set up the fixture data.
* @ftest: The actual test function.
* @fteardown: The function to tear down the fixture data.
*
* Hook up a new test case at @testpath, similar to g_test_add_func().
* A fixture data structure with setup and teardown function may be provided
* though, similar to g_test_create_case().
* g_test_add() is implemented as a macro, so that the fsetup(), ftest() and
* fteardown() callbacks can expect a @Fixture pointer as first argument in
* a type safe manner.
*
* Since: 2.16
**/
/* --- macros docs END --- */
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