[glib: 1/3] Convert tests/mapping-test.c to glib test framework

[Philip Withnall <pwithnall src gnome org>]

commit a67e9cdbe0ab7ddae0f15377426c6817978de84f
Author: Emmanuel Fleury <emmanuel fleury gmail com>
Date:   Fri Apr 15 10:47:46 2022 +0200

    Convert tests/mapping-test.c to glib test framework

 tests/mapping-test.c | 215 +++++++++++++++++++++++++--------------------------
 1 file changed, 107 insertions(+), 108 deletions(-)
---
diff --git a/tests/mapping-test.c b/tests/mapping-test.c
index d4547deba5..260134a916 100644
--- a/tests/mapping-test.c
+++ b/tests/mapping-test.c
@@ -14,13 +14,9 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <signal.h>
 
-#include "glib.h"
-#include "gstdio.h"
+#include <glib.h>
+#include <glib/gstdio.h>
 
 #ifdef G_OS_UNIX
 #include <unistd.h>
@@ -29,12 +25,12 @@
 #include <process.h>
 #endif
 
-static gchar *dir, *global_filename, *global_displayname, *childname;
-
 static gboolean stop = FALSE;
-
 static gint parent_pid;
 
+/* Passing argc and argv through global variables */
+static char **local_argv;
+
 #ifndef G_OS_WIN32
 
 static void
@@ -66,15 +62,11 @@ write_or_die (const gchar *filename,
              gssize       length)
 {
   GError *error = NULL;
-  gchar *displayname;    
+  gboolean result;
 
-  if (!g_file_set_contents (filename, contents, length, &error)) 
-    {
-      displayname = g_filename_display_name (childname);
-      g_print ("failed to write '%s': %s\n", 
-              displayname, error->message);
-      exit (1);
-    }
+  result = g_file_set_contents (filename, contents, length, &error);
+  g_assert_no_error (error);
+  g_assert_true (result);
 }
 
 static GMappedFile *
@@ -83,20 +75,14 @@ map_or_die (const gchar *filename,
 {
   GError *error = NULL;
   GMappedFile *map;
-  gchar *displayname;
 
   map = g_mapped_file_new (filename, writable, &error);
-  if (!map)
-    {
-      displayname = g_filename_display_name (childname);
-      g_print ("failed to map '%s' non-writable, shared: %s\n", 
-              displayname, error->message);
-      exit (1);
-    }
+  g_assert_no_error (error);
+  g_assert_nonnull (map);
 
   return map;
 }
-    
+
 static gboolean
 signal_parent (gpointer data)
 {
@@ -106,13 +92,18 @@ signal_parent (gpointer data)
   return G_SOURCE_REMOVE;
 }
 
-static int
-child_main (int argc, char *argv[])
+static void
+child_main (void)
 {
   GMappedFile *map;
   GMainLoop *loop;
+  gchar *dir, *global_filename, *childname;
+
+  dir = g_get_current_dir ();
+  global_filename = g_build_filename (dir, "maptest", NULL);
+  childname = g_build_filename (dir, "mapchild", NULL);
 
-  parent_pid = atoi (argv[2]);
+  parent_pid = atoi (local_argv[2]);
   map = map_or_die (global_filename, FALSE);
 
 #ifndef G_OS_WIN32
@@ -123,41 +114,58 @@ child_main (int argc, char *argv[])
   g_idle_add (signal_parent, NULL);
   g_main_loop_run (loop);
 
- g_message ("test_child_private: received parent signal");
+  g_test_message ("test_child_private: received parent signal");
 
-  write_or_die (childname, 
-               g_mapped_file_get_contents (map),
-               g_mapped_file_get_length (map));
+  write_or_die (childname,
+                g_mapped_file_get_contents (map),
+                g_mapped_file_get_length (map));
 
-  signal_parent (NULL);
+  g_free (childname);
+  g_free (global_filename);
+  g_free (dir);
 
-  return 0;
+  signal_parent (NULL);
 }
 
 static void
-test_mapping (void)
+test_mapping_flags (void)
 {
   GMappedFile *map;
+  gchar *dir, *global_filename;
+
+ dir = g_get_current_dir ();
+  global_filename = g_build_filename (dir, "maptest", NULL);
 
   write_or_die (global_filename, "ABC", -1);
 
   map = map_or_die (global_filename, FALSE);
-  g_assert (g_mapped_file_get_length (map) == 3);
-  g_mapped_file_free (map);
+  g_assert_cmpint (g_mapped_file_get_length (map), ==, 3);
+  g_mapped_file_unref (map);
 
   map = map_or_die (global_filename, TRUE);
-  g_assert (g_mapped_file_get_length (map) == 3);
-  g_mapped_file_free (map);
-  g_message ("test_mapping: ok");
+  g_assert_cmpint (g_mapped_file_get_length (map), ==, 3);
+  g_mapped_file_unref (map);
+  g_test_message ("test_mapping: ok");
+
+  /* Cleaning left over files */
+  g_remove ("maptest");
+
+  g_free (global_filename);
+  g_free (dir);
 }
 
-static void 
+static void
 test_private (void)
 {
   GError *error = NULL;
   GMappedFile *map;
+  gboolean result;
   gchar *buffer;
   gsize len;
+  gchar *dir, *global_filename;
+
+  dir = g_get_current_dir ();
+  global_filename = g_build_filename (dir, "maptest", NULL);
 
   write_or_die (global_filename, "ABC", -1);
   map = map_or_die (global_filename, TRUE);
@@ -166,27 +174,30 @@ test_private (void)
   buffer[0] = '1';
   buffer[1] = '2';
   buffer[2] = '3';
-  g_mapped_file_free (map);
+  g_mapped_file_unref (map);
 
-  if (!g_file_get_contents (global_filename, &buffer, &len, &error))
-    {
-      g_print ("failed to read '%s': %s\n",
-               global_displayname, error->message);
-      exit (1);
-      
-    }
-  g_assert (len == 3);
-  g_assert (strcmp (buffer, "ABC") == 0);
+  result = g_file_get_contents (global_filename, &buffer, &len, &error);
+  g_assert_no_error (error);
+  g_assert_true (result);
+  g_assert_cmpint (len, ==, 3);
+  g_assert_cmpstr (buffer, ==, "ABC");
   g_free (buffer);
 
-  g_message ("test_private: ok");
+  g_free (global_filename);
+  g_free (dir);
+
+  /* Cleaning left over files */
+  g_remove ("maptest");
+
+  g_test_message ("test_private: ok");
 }
 
 static void
-test_child_private (gchar *argv0)
+test_child_private (void)
 {
   GError *error = NULL;
   GMappedFile *map;
+  gboolean result;
   gchar *buffer;
   gsize len;
   gchar *child_argv[4];
@@ -195,12 +206,17 @@ test_child_private (gchar *argv0)
   GMainLoop *loop;
 #endif
   gchar pid[100];
-  
+  gchar *dir, *global_filename, *childname;
+
 #ifdef G_OS_WIN32
   g_remove ("STOP");
-  g_assert (!g_file_test ("STOP", G_FILE_TEST_EXISTS));
+  g_assert_false (g_file_test ("STOP", G_FILE_TEST_EXISTS));
 #endif
 
+  dir = g_get_current_dir ();
+  global_filename = g_build_filename (dir, "maptest", NULL);
+  childname = g_build_filename (dir, "mapchild", NULL);
+
   write_or_die (global_filename, "ABC", -1);
   map = map_or_die (global_filename, TRUE);
 
@@ -209,18 +225,16 @@ test_child_private (gchar *argv0)
 #endif
 
   g_snprintf (pid, sizeof(pid), "%d", getpid ());
-  child_argv[0] = argv0;
+  child_argv[0] = local_argv[0];
   child_argv[1] = "mapchild";
   child_argv[2] = pid;
   child_argv[3] = NULL;
-  if (!g_spawn_async (dir, child_argv, NULL,
-                     0, NULL, NULL, &child_pid, &error))
-    {
-      g_print ("failed to spawn child: %s\n", 
-              error->message);
-      exit (1);            
-    }
- g_message ("test_child_private: child spawned");
+
+  result = g_spawn_async (dir, child_argv, NULL,
+                          0, NULL, NULL, &child_pid, &error);
+  g_assert_no_error (error);
+  g_assert_true (result);
+  g_test_message ("test_child_private: child spawned");
 
 #ifndef G_OS_WIN32
   loop = g_main_loop_new (NULL, FALSE);
@@ -231,13 +245,13 @@ test_child_private (gchar *argv0)
   g_usleep (2000000);
 #endif
 
- g_message ("test_child_private: received first child signal");
+  g_test_message ("test_child_private: received first child signal");
 
   buffer = (gchar *)g_mapped_file_get_contents (map);
   buffer[0] = '1';
   buffer[1] = '2';
   buffer[2] = '3';
-  g_mapped_file_free (map);
+  g_mapped_file_unref (map);
 
 #ifndef G_OS_WIN32
   kill (child_pid, SIGUSR1);
@@ -252,44 +266,30 @@ test_child_private (gchar *argv0)
   g_usleep (2000000);
 #endif
 
- g_message ("test_child_private: received second child signal");
+  g_test_message ("test_child_private: received second child signal");
 
-  if (!g_file_get_contents (childname, &buffer, &len, &error))
-    {
-      gchar *name;
-
-      name = g_filename_display_name (childname);
-      g_print ("failed to read '%s': %s\n", name, error->message);
-      exit (1);      
-    }
-  g_assert (len == 3);
-  g_assert (strcmp (buffer, "ABC") == 0);
+  result = g_file_get_contents (childname, &buffer, &len, &error);
+  g_assert_no_error (error);
+  g_assert_true (result);
+  g_assert_cmpint (len, ==, 3);
+  g_assert_cmpstr (buffer, ==, "ABC");
   g_free (buffer);
 
-  g_message ("test_child_private: ok");
-}
-
-static int 
-parent_main (int   argc,
-            char *argv[])
-{
-  /* test mapping with various flag combinations */
-  test_mapping ();
-
-  /* test private modification */
-  test_private ();
+  g_free (childname);
+  g_free (global_filename);
+  g_free (dir);
 
-  /* test multiple clients, non-shared */
-  test_child_private (argv[0]);
+  /* Cleaning left over files */
+  g_remove ("mapchild");
+  g_remove ("maptest");
 
-  return 0;
+  g_test_message ("test_child_private: ok");
 }
 
 int
-main (int argc, 
+main (int argc,
       char *argv[])
 {
-  int ret;
 #ifndef G_OS_WIN32
   sigset_t sig_mask, old_mask;
 
@@ -298,24 +298,23 @@ main (int argc,
   if (sigprocmask (SIG_UNBLOCK, &sig_mask, &old_mask) == 0)
     {
       if (sigismember (&old_mask, SIGUSR1))
-        g_message ("SIGUSR1 was blocked, unblocking it");
+        g_test_message ("SIGUSR1 was blocked, unblocking it");
     }
 #endif
 
-  dir = g_get_current_dir ();
-  global_filename = g_build_filename (dir, "maptest", NULL);
-  global_displayname = g_filename_display_name (global_filename);
-  childname = g_build_filename (dir, "mapchild", NULL);
+  local_argv = argv;
 
   if (argc > 1)
-    ret = child_main (argc, argv);
-  else 
-    ret = parent_main (argc, argv);
+    {
+      child_main ();
+      return EXIT_SUCCESS;
+    }
 
-  g_free (childname);
-  g_free (global_filename);
-  g_free (global_displayname);
-  g_free (dir);
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/mapping/flags", test_mapping_flags);
+  g_test_add_func ("/mapping/private", test_private);
+  g_test_add_func ("/mapping/private-child", test_child_private);
 
-  return ret;
+  return g_test_run ();
 }