diff options
Diffstat (limited to 'lib/printf_test.c')
-rw-r--r-- | lib/printf_test.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/lib/printf_test.c b/lib/printf_test.c new file mode 100644 index 00000000..a2683d93 --- /dev/null +++ b/lib/printf_test.c @@ -0,0 +1,79 @@ +/* + * BIRD Library -- String Functions Tests + * + * (c) 2015 CZ.NIC z.s.p.o. + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +#include "test/birdtest.h" + +#include "lib/string.h" + +#define BSPRINTF(nw, res, buf, fmt, ...) \ + do { \ + int n = bsprintf(buf, fmt, ##__VA_ARGS__); \ + bt_assert_msg(n == nw, "fmt=\"%s\" returns n=%d, want %d", fmt, n, nw); \ + bt_assert_msg(buf[n] == 0, "fmt=\"%s\" buf[%d] should be \'\\0\', found 0x%02x", fmt, n, buf[n]); \ + bt_assert_msg(memcmp(buf, res, nw) == 0, "fmt=\"%s\" writes \"%*s\", want \"%*s\"", fmt, (n < nw ? n : nw), buf, nw, res); \ + } while (0) + +static int +t_simple(void) +{ + char buf[256]; + memset(buf, 0xa5, 256); + + BSPRINTF(0, "", buf, "", NULL); + BSPRINTF(1, "%", buf, "%%", NULL); + BSPRINTF(2, "%%", buf, "%%%%", NULL); + + BSPRINTF(1, "\x00", buf, "%c", 0); + BSPRINTF(1, "@", buf, "@", 64); + BSPRINTF(1, "\xff", buf, "%c", 0xff); + + errno = 5; + BSPRINTF(18, "Input/output error", buf, "%m"); + errno = 0; + + BSPRINTF(18, "Input/output error", buf, "%M", 5); + + BSPRINTF(11, "TeSt%StRiNg", buf, "%s", "TeSt%StRiNg"); + + if (sizeof(void *) == 4) + BSPRINTF(8, "1a15600d", buf, "%p", (void *) 0x1a15600d); + else + BSPRINTF(16, "00000fee1a15600d", buf, "%p", (void *) 0xfee1a15600d); + + long ln = 0; + BSPRINTF(10, "TeStStRiNg", buf, "TeStS%lntRiNg", &ln); + bt_assert_msg(ln == 5, "fmt=\"TeStS%%lntRiNg\", &ln makes ln=%ld, want 5", ln); + + BSPRINTF(2, "%d", buf, "%%d", 1); + BSPRINTF(1, "1", buf, "%d", 1); + BSPRINTF(2, "+1", buf, "%+d", 1); + BSPRINTF(2, " 1", buf, "% d", 1); + BSPRINTF(2, "-1", buf, "%d", -1); + BSPRINTF(11, "-2147483648", buf, "%d", -2147483648); + + BSPRINTF(7, "123.456", buf, "%t", (btime) 123456789); + BSPRINTF(7, "123.456", buf, "%2t", (btime) 123456789); + BSPRINTF(8, " 123.456", buf, "%8t", (btime) 123456789); + BSPRINTF(4, " 123", buf, "%4.0t", (btime) 123456789); + BSPRINTF(8, "123.4567", buf, "%8.4t", (btime) 123456789); + BSPRINTF(9, "0123.4567", buf, "%09.4t", (btime) 123456789); + BSPRINTF(12, " 123.456789", buf, "%12.10t", (btime) 123456789); + BSPRINTF(8, " 123.004", buf, "%8t", (btime) 123004 MS); + + return 1; +} + +int +main(int argc, char *argv[]) +{ + bt_init(argc, argv); + + bt_test_suite(t_simple, "printf without varargs"); + + return bt_exit_value(); +} |