[libsoup/wip/smcv/save-server-root-2-74: 3/3] test-utils: Save Apache server root during initialization

[Simon McVittie <smcv src gnome org>]

commit 508472e43e189635ad3f0bfbff913d2ca1e58cd6
Author: Simon McVittie <smcv debian org>
Date:   Mon Dec 27 18:09:35 2021 +0000

    test-utils: Save Apache server root during initialization
    
    By the time we want to use it during teardown, it is no longer safe to
    call g_test_build_filename(), because some GTest state is discarded
    at the end of g_test_run() (see glib#2563). As a result, the command
    that should shut down the server fails, the server continues to run, and
    its port is unavailable for the next test-case.
    
    This should mostly resolve
    <https://gitlab.gnome.org/GNOME/libsoup/-/issues/175>.
    
    Signed-off-by: Simon McVittie <smcv debian org>

 tests/test-utils.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/tests/test-utils.c b/tests/test-utils.c
index 64f09ad6..cd580d21 100644
--- a/tests/test-utils.c
+++ b/tests/test-utils.c
@@ -9,6 +9,7 @@
 
 #ifdef HAVE_APACHE
 static gboolean apache_running;
+static char *server_root = NULL;
 #endif
 
 static SoupLogger *logger;
@@ -150,7 +151,7 @@ static gboolean
 apache_cmd (const char *cmd)
 {
        GPtrArray *argv;
-       char *server_root, *cwd, *pid_file;
+       char *cwd, *pid_file;
 #ifdef HAVE_APACHE_2_4
        char *default_runtime_dir;
 #endif
@@ -159,7 +160,10 @@ apache_cmd (const char *cmd)
        GString *str;
        guint i;
 
-       server_root = soup_test_build_filename_abs (G_TEST_BUILT, "", NULL);
+       if (server_root == NULL) {
+               g_test_message ("Server root not initialized");
+               return FALSE;
+       }
 
        cwd = g_get_current_dir ();
 #ifdef HAVE_APACHE_2_4
@@ -202,7 +206,6 @@ apache_cmd (const char *cmd)
        if (ok)
                ok = (status == 0);
 
-       g_free (server_root);
        g_free (cwd);
        g_free (pid_file);
 #ifdef HAVE_APACHE_2_4
@@ -222,6 +225,8 @@ apache_init (void)
        if (g_getenv ("SOUP_TESTS_ALREADY_RUNNING_APACHE"))
                return;
 
+       server_root = soup_test_build_filename_abs (G_TEST_BUILT, "", NULL);
+
        if (!apache_cmd ("start")) {
                g_printerr ("Could not start apache\n");
                exit (1);
@@ -249,6 +254,8 @@ apache_cleanup (void)
                while (kill (pid, 0) == 0)
                        g_usleep (100);
        }
+
+       g_clear_pointer (&server_root, g_free);
 }
 
 #endif /* HAVE_APACHE */