1 files changed, 33 insertions, 0 deletions
diff --git a/ccan/tal/test/run-expand.c b/ccan/tal/test/run-expand.c
new file mode 100644
index 0000000..841735f
--- /dev/null
+++ b/ccan/tal/test/run-expand.c
@@ -0,0 +1,33 @@
+#include <ccan/tal/tal.h>
+#include <ccan/tal/tal.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+	int *a;
+	const int arr[] = { 1, 2 };
+
+	plan_tests(13);
+
+	a = tal_arrz(NULL, int, 1);
+	ok1(a);
+
+	ok1(tal_expand(&a, arr, 2));
+	ok1(tal_count(a) == 3);
+	ok1(a[0] == 0);
+	ok1(a[1] == 1);
+	ok1(a[2] == 2);
+
+	ok1(tal_expand(&a, take(tal_arrz(NULL, int, 1)), 1));
+	ok1(tal_count(a) == 4);
+	ok1(a[0] == 0);
+	ok1(a[1] == 1);
+	ok1(a[2] == 2);
+	ok1(a[3] == 0);
+	ok1(tal_first(NULL) == a && !tal_next(a) && !tal_first(a));
+
+	tal_free(a);
+
+	tal_cleanup();
+	return exit_status();
+}