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author | Andrew Bartlett <abartlet@samba.org> | 2011-06-24 16:26:23 +1000 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2011-06-24 16:26:23 +1000 |
commit | 6da26870e0ae5acd6ff49a30ec2f6886b44d095e (patch) | |
tree | 850c71039563c16a5d563c47e7ba2ab645baf198 /lib/ccan/tally/test/run-mode.c | |
parent | 6925a799d04c6fa59dd2ddef1f5510f9bb7d17d1 (diff) | |
parent | 2610c05b5b95cc7036b3d6dfb894c6cfbdb68483 (diff) | |
download | samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.tar.gz samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.tar.bz2 samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.zip |
Merge 2610c05b5b95cc7036b3d6dfb894c6cfbdb68483 as Samba-4.0alpha16
Diffstat (limited to 'lib/ccan/tally/test/run-mode.c')
-rw-r--r-- | lib/ccan/tally/test/run-mode.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/ccan/tally/test/run-mode.c b/lib/ccan/tally/test/run-mode.c new file mode 100644 index 0000000000..cd2f230443 --- /dev/null +++ b/lib/ccan/tally/test/run-mode.c @@ -0,0 +1,46 @@ +#include <ccan/tally/tally.c> +#include <ccan/tap/tap.h> + +int main(void) +{ + int i; + struct tally *tally = tally_new(100); + ssize_t min, max, mode; + size_t err; + + max = (ssize_t)~(1ULL << (sizeof(max)*CHAR_BIT - 1)); + min = (ssize_t)(1ULL << (sizeof(max)*CHAR_BIT - 1)); + + plan_tests(100 + 50 + 100 + 100 + 10); + /* Simple mode test: should always be around 0 (we add that twice). */ + for (i = 0; i < 100; i++) { + tally_add(tally, i); + tally_add(tally, -i); + mode = tally_approx_mode(tally, &err); + if (i < 50) + ok1(err == 0); + ok1(mode - (ssize_t)err <= 0 && mode + (ssize_t)err >= 0); + } + + /* Works for big values too... */ + for (i = 0; i < 100; i++) { + tally_add(tally, max - i); + tally_add(tally, min + 1 + i); + mode = tally_approx_mode(tally, &err); + ok1(mode - (ssize_t)err <= 0 && mode + (ssize_t)err >= 0); + } + free(tally); + + tally = tally_new(10); + tally_add(tally, 0); + for (i = 0; i < 100; i++) { + tally_add(tally, i); + mode = tally_approx_mode(tally, &err); + if (i < 10) + ok1(err == 0); + ok1(mode - (ssize_t)err <= 0 && mode + (ssize_t)err >= 0); + } + + free(tally); + return exit_status(); +} |