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Diffstat (limited to 'grub-core/tests/setjmp_test.c')
-rw-r--r-- | grub-core/tests/setjmp_test.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/grub-core/tests/setjmp_test.c b/grub-core/tests/setjmp_test.c new file mode 100644 index 0000000..604a6ce --- /dev/null +++ b/grub-core/tests/setjmp_test.c @@ -0,0 +1,80 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/test.h> +#include <grub/dl.h> +#include <grub/setjmp.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_jmp_buf jmp_point; +static int expected, ctr; + +/* This fixes GCC7 "unintentional fallthrough" warning */ +static void jmp0 (void) __attribute__ ((noreturn)); +static void jmp1 (void) __attribute__ ((noreturn)); +static void jmp2 (void) __attribute__ ((noreturn)); + +static void +jmp0 (void) +{ + grub_longjmp (jmp_point, 0); +} + +static void +jmp1 (void) +{ + grub_longjmp (jmp_point, 1); +} + +static void +jmp2 (void) +{ + grub_longjmp (jmp_point, 2); +} + +static void +setjmp_test (void) +{ + int val; + + expected = 0; + ctr = 0; + val = grub_setjmp (jmp_point); + + grub_test_assert (val == expected, "setjmp returned %d instead of %d", + val, expected); + switch (ctr++) + { + case 0: + expected = 1; + jmp0 (); + case 1: + expected = 1; + jmp1 (); + case 2: + expected = 2; + jmp2 (); + case 3: + return; + } + grub_test_assert (0, "setjmp didn't return enough times"); +} + +/* Register example_test method as a functional test. */ +GRUB_FUNCTIONAL_TEST (setjmp_test, setjmp_test); |