gtestutils: fix g_test_set_nonfatal_assertions()

g_test_set_nonfatal_assertions() was a no-op, because
g_assertion_message() wasn't actually checking the
test_nonfatal_assertions flag. Fix that and add a test.

Also, g_test_set_nonfatal_assertions() has to set test_mode_fatal to
FALSE as well, or else a failed assertion will cause the test program
to abort at the end of the failed test.

Also, belatedly add this and the new g_assert_* methods to the docs.

https://bugzilla.gnome.org/show_bug.cgi?id=711800

docs/reference/glib/glib-sections.txt

@@ -2966,6 +2966,7 @@ g_test_rand_double_range
 
 g_assert
 g_assert_not_reached
+
 g_assert_cmpstr
 g_assert_cmpint
 g_assert_cmpuint
@@ -2973,6 +2974,10 @@ g_assert_cmphex
 g_assert_cmpfloat
 g_assert_no_error
 g_assert_error
+g_assert_true
+g_assert_false
+g_assert_null
+g_test_set_nonfatal_assertions
 
 GTestCase
 GTestSuite

glib/gtestutils.c

@@ -1754,7 +1754,9 @@ g_test_failed (void)
  * g_assert_true(), g_assert_false(), g_assert_null(), g_assert_no_error(),
  * g_assert_error(), g_test_assert_expected_messages() and the various
  * g_test_trap_assert_*() macros to not abort to program, but instead
- * call g_test_fail() and continue.
+ * call g_test_fail() and continue. (This also changes the behavior of
+ * g_test_fail() so that it will not cause the test program to abort
+ * after completing the failed test.)
  *
  * Note that the g_assert_not_reached() and g_assert() are not
  * affected by this.
@@ -1769,6 +1771,7 @@ g_test_set_nonfatal_assertions (void)
   if (!g_test_config_vars->test_initialized)
     g_error ("g_test_set_nonfatal_assertions called without g_test_init");
   test_nonfatal_assertions = TRUE;
+  test_mode_fatal = FALSE;
 }
 
 /**
@@ -2271,15 +2274,23 @@ g_assertion_message (const char     *domain,
                    " ", message, NULL);
   g_printerr ("**\n%s\n", s);
 
+  g_test_log (G_TEST_LOG_ERROR, s, NULL, 0, NULL);
+
+  if (test_nonfatal_assertions)
+    {
+      g_free (s);
+      g_test_fail ();
+      return;
+    }
+
   /* 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 the old one */
-      free (__glib_assert_msg);
+    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);
   _g_log_abort ();
 }

glib/tests/testing.c

@@ -563,6 +563,25 @@ test_dash_p (void)
   g_test_trap_assert_stdout_unmatched ("*Test /misc/dash-p/subprocess/hidden*");
 }
 
+static void
+test_nonfatal_subprocess (void)
+{
+  g_test_set_nonfatal_assertions ();
+
+  g_assert_cmpint (4, ==, 5);
+
+  g_print ("The End\n");
+}
+
+static void
+test_nonfatal (void)
+{
+  g_test_trap_subprocess ("/misc/nonfatal/subprocess", 0, 0);
+  g_test_trap_assert_failed ();
+  g_test_trap_assert_stderr ("*assertion failed*4 == 5*");
+  g_test_trap_assert_stdout ("*The End*");
+}
+
 int
 main (int   argc,
       char *argv[])
@@ -624,5 +643,8 @@ main (int   argc,
   g_test_add_func ("/misc/dash-p/subprocess/hidden", test_dash_p_hidden);
   g_test_add_func ("/misc/dash-p/subprocess/hidden/sub", test_dash_p_hidden_sub);
 
+  g_test_add_func ("/misc/nonfatal", test_nonfatal);
+  g_test_add_func ("/misc/nonfatal/subprocess", test_nonfatal_subprocess);
+
   return g_test_run();
 }