X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fstrset%2Ftest%2Frun.c;h=cfda0ee38f0ce998a16c5779fc793d8bf0722565;hp=557c7080aaba6af5939c97b53df4435db5df9e97;hb=2578442d9f40350f51cca44eeef60768dbae2dc6;hpb=ed1b25bbd01f79b5b333fd28b53455d2c91b831f

diff --git a/ccan/strset/test/run.c b/ccan/strset/test/run.c
index 557c7080..cfda0ee3 100644
--- a/ccan/strset/test/run.c
+++ b/ccan/strset/test/run.c
@@ -10,7 +10,7 @@ int main(void)
 	char *dup = strdup(str);
 
 	/* This is how many tests you plan to run */
-	plan_tests(24);
+	plan_tests(26);
 
 	strset_init(&set);
 
@@ -25,6 +25,10 @@ int main(void)
 	ok1(strset_test(&set, dup));
 	ok1(!strset_test(&set, none));
 
+	/* Add of duplicate should fail. */
+	ok1(!strset_set(&set, dup));
+	ok1(errno == EEXIST);
+
 	/* Delete should return original string. */
 	ok1(strset_clear(&set, dup) == str);
 	ok1(!strset_test(&set, str));