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-rw-r--r--lib/ccan/tally/test/run-min-max.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/ccan/tally/test/run-min-max.c b/lib/ccan/tally/test/run-min-max.c
new file mode 100644
index 00000000000..c92f6d382a4
--- /dev/null
+++ b/lib/ccan/tally/test/run-min-max.c
@@ -0,0 +1,21 @@
+#include <ccan/tally/tally.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ int i;
+ struct tally *tally = tally_new(0);
+
+ plan_tests(100 * 4);
+ /* Test max, min and num. */
+ for (i = 0; i < 100; i++) {
+ tally_add(tally, i);
+ ok1(tally_num(tally) == i*2 + 1);
+ tally_add(tally, -i);
+ ok1(tally_num(tally) == i*2 + 2);
+ ok1(tally_max(tally) == i);
+ ok1(tally_min(tally) == -i);
+ }
+ free(tally);
+ return exit_status();
+}