From 754c677b0bbf3ea6c7d2a73c93848f1b0d68c91e Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Mon, 20 Jun 2011 16:54:15 +0930 Subject: lib: import ccan modules for tdb2 Imported from git://git.ozlabs.org/~ccan/ccan init-1161-g661d41f Signed-off-by: Rusty Russell --- lib/ccan/tally/test/run-mean.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 lib/ccan/tally/test/run-mean.c (limited to 'lib/ccan/tally/test/run-mean.c') diff --git a/lib/ccan/tally/test/run-mean.c b/lib/ccan/tally/test/run-mean.c new file mode 100644 index 0000000000..a4a67cf9c8 --- /dev/null +++ b/lib/ccan/tally/test/run-mean.c @@ -0,0 +1,29 @@ +#include +#include + +int main(void) +{ + int i; + struct tally *tally = tally_new(0); + ssize_t min, max; + + max = (ssize_t)~(1ULL << (sizeof(max)*CHAR_BIT - 1)); + min = (ssize_t)(1ULL << (sizeof(max)*CHAR_BIT - 1)); + + plan_tests(100 + 100); + /* Simple mean test: should always be 0. */ + for (i = 0; i < 100; i++) { + tally_add(tally, i); + tally_add(tally, -i); + ok1(tally_mean(tally) == 0); + } + + /* Works for big values too... */ + for (i = 0; i < 100; i++) { + tally_add(tally, max - i); + tally_add(tally, min + 1 + i); + ok1(tally_mean(tally) == 0); + } + + return exit_status(); +} -- cgit