take: add labels when CCAN_TAKE_DEBUG set, return in taken_any().

[ccan] / ccan / take / test / run-debug.c

diff --git a/ccan/take/test/run-debug.c b/ccan/take/test/run-debug.c
new file mode 100644 (file)
index 0000000..a9dda6e
--- /dev/null
+++ b/ccan/take/test/run-debug.c
@@ -0,0 +1,34 @@
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define CCAN_TAKE_DEBUG 1
+#include <ccan/take/take.h>
+#include <ccan/take/take.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+       const char *p = "hi";
+
+       plan_tests(14);
+
+       /* We can take NULL. */
+       ok1(take(NULL) == NULL);
+       ok1(is_taken(NULL));
+       ok1(strstr(taken_any(), "run-debug.c:16:"));
+       ok1(taken(NULL)); /* Undoes take() */
+       ok1(!is_taken(NULL));
+       ok1(!taken(NULL));
+       ok1(!taken_any());
+
+       /* We can take a real pointer. */
+       ok1(take(p) == p);
+       ok1(is_taken(p));
+       ok1(strends(taken_any(), "run-debug.c:25:p"));
+       ok1(taken(p)); /* Undoes take() */
+       ok1(!is_taken(p));
+       ok1(!taken(p));
+       ok1(!taken_any());
+
+       return exit_status();
+}