talloc: use failtest to test failure paths.

[ccan] / ccan / talloc / test / run-corruption1.c

diff --git a/ccan/talloc/test/run-corruption1.c b/ccan/talloc/test/run-corruption1.c
new file mode 100644 (file)
index 0000000..d6ac7da
--- /dev/null
+++ b/ccan/talloc/test/run-corruption1.c
@@ -0,0 +1,24 @@
+/* failtest with valgrind caught this read-after-free. */
+#include <ccan/talloc/talloc.c>
+#include <stdbool.h>
+#include <ccan/tap/tap.h>
+
+int main(int argc, char *argv[])
+{
+       void *root, *p1;
+
+       plan_tests(2);
+       talloc_enable_null_tracking();
+       root = talloc_new(NULL);
+       p1 = talloc_strdup(root, "foo");
+       talloc_increase_ref_count(p1);
+       talloc_free(root);
+       ok1(strcmp(p1, "foo") == 0);
+       talloc_unlink(NULL, p1);
+
+       /* This closes the leak, but make sure we're not freeing unexpected. */
+       ok1(!talloc_chunk_from_ptr(null_context)->child);
+       talloc_disable_null_tracking();
+
+       return exit_status();
+}