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Add g_test_build_filename()

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This function allows testcases to find data files in various situations
of srcdir == builddir, srcdir != builddir and for installed tests.

https://bugzilla.gnome.org/show_bug.cgi?id=549783
This commit is contained in:
Ryan Lortie
2013-05-28 12:44:41 -04:00
parent 2afd39a90d
commit 0c4806733c
4 changed files with 115 additions and 3 deletions
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98
glib/gtestutils.c
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@@ -562,6 +562,9 @@ static char *test_uri_base = NULL;
static gboolean test_debug_log = FALSE;
static DestroyEntry *test_destroy_queue = NULL;
static char *test_argv0 = NULL;
static char *test_argv0_dirname;
static const char *test_disted_files_dir;
static const char *test_built_files_dir;
static char *test_initial_cwd = NULL;
static gboolean test_in_subprocess = FALSE;
static GTestConfig mutable_test_config_vars = {
@@ -1034,6 +1037,25 @@ g_test_init (int *argc,
/* 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);
test_argv0_dirname = g_path_get_dirname (test_argv0);
/* Make sure we get the real dirname that the test was run from */
if (g_str_has_suffix (test_argv0_dirname, "/.libs"))
{
gchar *tmp;
tmp = g_path_get_dirname (test_argv0_dirname);
g_free (test_argv0_dirname);
test_argv0_dirname = tmp;
}
test_disted_files_dir = g_getenv ("G_TEST_SRCDIR");
if (!test_disted_files_dir)
test_disted_files_dir = test_argv0_dirname;
test_built_files_dir = g_getenv ("G_TEST_BUILDDIR");
if (!test_built_files_dir)
test_built_files_dir = test_argv0_dirname;
}
static void
@@ -2881,6 +2903,82 @@ g_test_log_msg_free (GTestLogMsg *tmsg)
g_free (tmsg);
}
/**
* g_test_build_filename:
* @file_type: the type of file (built vs. disted)
* @first_path: the first segment of the pathname
* ...: NULL terminated additional path segments
*
* Creates the pathname to a data file that is required for a test.
*
* This function is conceptually similar to g_build_filename() except
* that the first argument has been replaced with a #GTestFileType
* argument.
*
* The data file should either have been disted with the module
* containing the test (%G_TEST_DISTED) or built as part of the build
* system of that module (%G_TEST_BUILT).
*
* In order for this function to work in srcdir != builddir situations,
* the G_TEST_SRCDIR and G_TEST_BUILDDIR environment variables need to
* have been defined. As of 2.38, this is done by the Makefile.decl
* included in GLib. Please ensure that your copy is up to date before
* using this function.
*
* In case neither variable is set, this function will fall back to
* using the dirname portion of argv[0], possibly removing ".libs".
* This allows for casual running of tests directly from the commandline
* in the srcdir == builddir case and should also support running of
* installed tests, assuming the data files have been installed in the
* same relative path as the test binary.
*
* Returns: the path of the file, to be freed using g_free()
*
* Since: 2.38
**/
/**
* GTestFileType:
* @G_TEST_DISTED: a file that was included in the distribution tarball
* @G_TEST_BUILT: a file that was built on the compiling machine
*
* The type of file to return the filename for, when used with
* g_test_build_filename().
*
* Since: 2.38
**/
gchar *
g_test_build_filename (GTestFileType file_type,
const gchar *first_path,
...)
{
const gchar *pathv[16];
gint num_path_segments;
va_list ap;
g_assert (g_test_initialized ());
if (file_type == G_TEST_DISTED)
pathv[0] = test_disted_files_dir;
else if (file_type == G_TEST_BUILT)
pathv[0] = test_built_files_dir;
else
g_assert_not_reached ();
pathv[1] = first_path;
va_start (ap, first_path);
for (num_path_segments = 2; num_path_segments < G_N_ELEMENTS (pathv); num_path_segments++)
{
pathv[num_path_segments] = va_arg (ap, const char *);
if (pathv[num_path_segments] == NULL)
break;
}
g_assert_cmpint (num_path_segments, <, G_N_ELEMENTS (pathv));
return g_build_filenamev ((gchar **) pathv);
}
/* --- macros docs START --- */
/**
* g_test_add: