From e4ce915ea0631f5b17082aa8c70079b0e9dc33af Mon Sep 17 00:00:00 2001 From: Daniel Axtens Date: Fri, 20 Feb 2015 13:45:05 +1100 Subject: Test libc stdlib functions (atoi/strtol and friends) This increases coverage of atoi, atol, strtol and strtoul to 100%. Signed-off-by: Daniel Axtens Reviewed-by: Cyril Bur Signed-off-by: Stewart Smith --- libc/test/run-stdlib.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) (limited to 'libc') diff --git a/libc/test/run-stdlib.c b/libc/test/run-stdlib.c index 15ec9bd..bb64790 100644 --- a/libc/test/run-stdlib.c +++ b/libc/test/run-stdlib.c @@ -23,5 +23,65 @@ int main(void) { + char buf[] = "42, and stuff."; + char *ptr; + + /* atoi/strtol - general correct behavior */ + assert(atoi("0") == 0); + assert(atoi("1") == 1); + assert(atoi(" 123456") == 123456); + assert(atoi("-72") == -72); + assert(atoi(" -84") == -84); + assert(atoi("2147483647") == 2147483647); + + /* atoi/strtol - numbers before and after strings */ + assert(atoi("hello!123") == 0); + assert(atoi(buf) == 42); + assert(atoi("42isthemagicnumber") == 42); + + /* our atoi recognises hex! */ + assert(atoi("0x800") == 0x800); + /* Really weird hex! */ + assert(atoi("0x0x800") == 0x800); + + /* atol - ensure it recognises longs */ + assert(atol("2147483648") == 2147483648); + assert(atol("-2147483649") == -2147483649); + + /* strtol - invalid/weird bases */ + assert(strtol("z", NULL, -1) == 0); + assert(strtol("11111", NULL, 1) == 0); + assert(strtol("z", NULL, 37) == 0); + assert(strtol("z", NULL, 36) == 35); + assert(strtol("-Y", NULL, 36) == -34); + + /* strtol - ptr advanced correctly */ + ptr = buf; + assert(strtol(buf, &ptr, 10) == 42); + assert(ptr == buf + 2); + + /* strtoul - base 10 */ + assert(strtoul("0", NULL, 10) == 0); + assert(strtoul("1", NULL, 10) == 1); + assert(strtoul(" 123456", NULL, 10) == 123456); + assert(strtoul("-72", NULL, 10) == 0); + assert(strtoul("9999999999", NULL, 10) == 9999999999); + assert(strtoul("hello!123", NULL, 10) == 0); + assert(strtoul(buf, NULL, 10) == 42); + assert(strtoul("42isthemagicnumber", NULL, 10) == 42); + + /* strtoul - autodetection of base */ + assert(strtoul(" 123456", NULL, 0) == 123456); + assert(strtoul("0x800", NULL, 0) == 0x800); + /* Again, really weird hex */ + assert(strtoul("0x0x800", NULL, 0) == 0x800); + + /* strtoul - weird/invalid bases */ + assert(strtoul("z", NULL, -1) == 0); + assert(strtoul("11111", NULL, 1) == 0); + assert(strtoul("z", NULL, 37) == 0); + assert(strtoul("z", NULL, 36) == 35); + assert(strtoul("Y", NULL, 36) == 34); + return 0; } -- cgit v1.1