1 files changed, 57 insertions, 0 deletions
diff --git a/ccan/tal/test/run-take.c b/ccan/tal/test/run-take.c
new file mode 100644
index 0000000..d93304e
--- /dev/null
+++ b/ccan/tal/test/run-take.c
@@ -0,0 +1,57 @@
+#include <ccan/tal/tal.h>
+#include <ccan/tal/tal.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+	char *parent, *c;
+
+	plan_tests(21);
+
+	/* We can take NULL. */
+	ok1(take(NULL) == NULL);
+	ok1(is_taken(NULL));
+	ok1(taken(NULL)); /* Undoes take() */
+	ok1(!is_taken(NULL));
+	ok1(!taken(NULL));
+
+	parent = tal(NULL, char);
+	ok1(parent);
+
+	ok1(take(parent) == parent);
+	ok1(is_taken(parent));
+	ok1(taken(parent)); /* Undoes take() */
+	ok1(!is_taken(parent));
+	ok1(!taken(parent));
+
+	c = tal(parent, char);
+	*c = 'h';
+	c = tal_dup(parent, char, take(c));
+	ok1(c[0] == 'h');
+	ok1(tal_parent(c) == parent);
+
+	c = tal_dup_arr(parent, char, take(c), 1, 2);
+	ok1(c[0] == 'h');
+	strcpy(c, "hi");
+	ok1(tal_parent(c) == parent);
+
+	/* dup must reparent child. */
+	c = tal_dup(NULL, char, take(c));
+	ok1(c[0] == 'h');
+	ok1(tal_parent(c) == NULL);
+
+	/* No leftover allocations. */
+	tal_free(c);
+	ok1(tal_first(parent) == NULL);
+
+	tal_free(parent);
+	ok1(!taken_any());
+
+	/* NULL pass-through. */
+	c = NULL;
+	ok1(tal_dup_arr(NULL, char, take(c), 5, 5) == NULL);
+	ok1(!taken_any());
+
+	tal_cleanup();
+	return exit_status();
+}