cordtest: Add a test for CORD_cat

* cord/tests/cordtest.c (test_basics): Insert a check of CORD_cat
result to be not CORD_EMPTY (in case of a non-empty input).

diff --git a/cord/tests/cordtest.c b/cord/tests/cordtest.c
index 3b7082b3e30266b00c769b7addb3cfb96848fbec..24f56f1ab53f7b47bae89b9e73d3f95076ff9da8 100644 (file)
--- a/cord/tests/cordtest.c
+++ b/cord/tests/cordtest.c
@@ -58,6 +58,7 @@ void test_basics(void)
     CORD_pos p;
 
     x = CORD_cat(x,x);
+    if (x == CORD_EMPTY) ABORT("CORD_cat(x,x) returned empty cord");
     if (!CORD_IS_STRING(x)) ABORT("short cord should usually be a string");
     if (strcmp(x, "abab") != 0) ABORT("bad CORD_cat result");