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add regression test for charset over-allocation

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This commit is contained in:
Sven M. Hallberg 2015-09-25 16:47:07 +02:00
parent 690985dddd
commit c770fbab1b
1 changed files with 23 additions and 0 deletions
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23
src/t_regression.c
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@ -140,6 +140,28 @@ static void test_cfg_many_seq(void) {
// reshape on h_many.
}
static uint8_t test_charset_bits__buf[256];
static void *test_charset_bits__alloc(HAllocator *allocator, size_t size)
{
g_check_cmp_uint64(size, ==, 256/8);
assert(size <= 256);
return test_charset_bits__buf;
}
static void test_charset_bits(void) {
// charset would allocate 256 bytes instead of 256 bits (= 32 bytes)
HAllocator alloc = {
.alloc = test_charset_bits__alloc,
.realloc = NULL,
.free = NULL,
};
test_charset_bits__buf[32] = 0xAB;
HCharset cs = new_charset(&alloc);
for(size_t i=0; i<32; i++)
g_check_cmp_uint32(test_charset_bits__buf[i], ==, 0);
g_check_cmp_uint32(test_charset_bits__buf[32], ==, 0xAB);
}
void register_regression_tests(void) {
g_test_add_func("/core/regression/bug118", test_bug118);
g_test_add_func("/core/regression/seq_index_path", test_seq_index_path);
@ -147,4 +169,5 @@ void register_regression_tests(void) {
g_test_add_func("/core/regression/llk_zero_end", test_llk_zero_end);
g_test_add_func("/core/regression/lalr_charset_lhs", test_lalr_charset_lhs);
g_test_add_func("/core/regression/cfg_many_seq", test_cfg_many_seq);
g_test_add_func("/core/regression/charset_bits", test_charset_bits);
}