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test-fileio: add explicit check for safe_fgetc() with 0xFF

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This commit is contained in:
Lennart Poettering 2018-12-20 11:21:36 +01:00
parent 517b776042
commit cdce33f987
1 changed files with 5 additions and 4 deletions
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9
src/test/test-fileio.c
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@ -611,7 +611,7 @@ static void test_tempfn(void) {
}
static const char chars[] =
"Aąę„”\n루";
"Aąę„”\n루\377";
static void test_fgetc(void) {
_cleanup_fclose_ FILE *f = NULL;
@ -624,11 +624,12 @@ static void test_fgetc(void) {
assert_se(safe_fgetc(f, &c) == 1);
assert_se(c == chars[i]);
assert_se(ungetc(c, f) != EOF);
assert_se(safe_fgetc(f, &c) == 1);
/* EOF is -1, and hence we can't push value 255 in this way */
assert_se(ungetc(c, f) != EOF || c == EOF);
assert_se(c == EOF || safe_fgetc(f, &c) == 1);
assert_se(c == chars[i]);
/* Check that ungetc doesn't care about unsigned char vs signed char */
/* But it works when we push it properly cast */
assert_se(ungetc((unsigned char) c, f) != EOF);
assert_se(safe_fgetc(f, &c) == 1);
assert_se(c == chars[i]);