SymbX/systemd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

parse-util: Introduce new parse_range function

Browse Source 
This function will be useful for CPUAffinity settings that involve
ranges of CPUs.

Make it generic and include test coverage to prevent regressions.
This commit is contained in:
Filipe Brandenburger
2015-10-27 17:56:26 -07:00
parent 4fc66acb93
commit 28cb17ef02
3 changed files with 220 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/test/test-util.c
+180
View File
@@ -979,6 +979,185 @@ static void test_parse_size(void) {
assert_se(parse_size("-10B 20K", 1024, &bytes) == -ERANGE);
}
static void test_parse_range(void) {
unsigned lower, upper;
/* Successful cases */
assert_se(parse_range("111", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 111);
assert_se(parse_range("111-123", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 123);
assert_se(parse_range("123-111", &lower, &upper) == 0);
assert_se(lower == 123);
assert_se(upper == 111);
assert_se(parse_range("123-123", &lower, &upper) == 0);
assert_se(lower == 123);
assert_se(upper == 123);
assert_se(parse_range("0", &lower, &upper) == 0);
assert_se(lower == 0);
assert_se(upper == 0);
assert_se(parse_range("0-15", &lower, &upper) == 0);
assert_se(lower == 0);
assert_se(upper == 15);
assert_se(parse_range("15-0", &lower, &upper) == 0);
assert_se(lower == 15);
assert_se(upper == 0);
assert_se(parse_range("128-65535", &lower, &upper) == 0);
assert_se(lower == 128);
assert_se(upper == 65535);
assert_se(parse_range("1024-4294967295", &lower, &upper) == 0);
assert_se(lower == 1024);
assert_se(upper == 4294967295);
/* Leading whitespace is acceptable */
assert_se(parse_range(" 111", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 111);
assert_se(parse_range(" 111-123", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 123);
assert_se(parse_range("111- 123", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 123);
assert_se(parse_range("\t111-\t123", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 123);
assert_se(parse_range(" \t 111- \t 123", &lower, &upper) == 0);
assert_se(lower == 111);
assert_se(upper == 123);
/* Error cases, make sure they fail as expected */
lower = upper = 9999;
assert_se(parse_range("111garbage", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("garbage111", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("garbage", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123garbage", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111garbage-123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* Empty string */
lower = upper = 9999;
assert_se(parse_range("", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* 111--123 will pass -123 to safe_atou which returns -ERANGE for negative */
assert_se(parse_range("111--123", &lower, &upper) == -ERANGE);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("-111-123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123-", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111.4-123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123.4", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111,4-123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123,4", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* Error on trailing dash */
assert_se(parse_range("111-", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123-", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111--", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111- ", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* Whitespace is not a separator */
assert_se(parse_range("111 123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111\t123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111 \t 123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* Trailing whitespace is invalid (from safe_atou) */
assert_se(parse_range("111 ", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111-123 ", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111 -123", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111 -123 ", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111\t-123\t", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
assert_se(parse_range("111 \t -123 \t ", &lower, &upper) == -EINVAL);
assert_se(lower == 9999);
assert_se(upper == 9999);
/* Out of the "unsigned" range, this is 1<<64 */
assert_se(parse_range("0-18446744073709551616", &lower, &upper) == -ERANGE);
assert_se(lower == 9999);
assert_se(upper == 9999);
}
static void test_parse_cpu_set(void) {
cpu_set_t *c = NULL;
int ncpus;
@@ -2378,6 +2557,7 @@ int main(int argc, char *argv[]) {
test_u64log2();
test_protect_errno();
test_parse_size();
test_parse_range();
test_parse_cpu_set();
test_config_parse_iec_uint64();
test_strextend();