tal/path: new module

[ccan] / ccan / tal / path / test / run-readlink.c

diff --git a/ccan/tal/path/test/run-readlink.c b/ccan/tal/path/test/run-readlink.c
new file mode 100644 (file)
index 0000000..28dcf87
--- /dev/null
+++ b/ccan/tal/path/test/run-readlink.c
@@ -0,0 +1,46 @@
+#include <ccan/tal/path/path.h>
+#include <ccan/tal/path/path.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+       char *link, *ctx = tal_strdup(NULL, "ctx");
+
+       plan_tests(12);
+
+       unlink("run-readlink-link");
+
+       link = path_readlink(ctx, "run-readlink-link");
+       ok1(errno == ENOENT);
+       ok1(!link);
+
+       link = path_readlink(ctx, take(tal_strdup(ctx, "run-readlink-link")));
+       ok1(errno == ENOENT);
+       ok1(!link);
+       ok1(tal_first(ctx) == NULL);
+
+       if (symlink("/tmp", "run-readlink-link") != 0)
+               abort();
+
+       link = path_readlink(ctx, "run-readlink-link");
+       ok1(tal_parent(link) == ctx);
+       ok1(streq(link, "/tmp"));
+       tal_free(link);
+
+       link = path_readlink(ctx, take(tal_strdup(ctx, "run-readlink-link")));
+       ok1(tal_parent(link) == ctx);
+       ok1(streq(link, "/tmp"));
+       ok1(tal_first(ctx) == link && tal_next(ctx, link) == NULL);
+
+       unlink("run-readlink-link");
+
+       if (symlink("some-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-long-name", "run-readlink-link") != 0)
+               abort();
+
+       link = path_readlink(ctx, "run-readlink-link");
+       ok1(tal_parent(link) == ctx);
+       ok1(streq(link, "some-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-really-long-name"));
+       tal_free(ctx);
+
+       return exit_status();
+}