X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftal%2Fpath%2Ftest%2Frun-readlink.c;fp=ccan%2Ftal%2Fpath%2Ftest%2Frun-readlink.c;h=28dcf87e53d6469ae72e59168564586ff359c414;hb=892f59bdc1830443f87ad3aaeddaab2eeefb5937;hp=0000000000000000000000000000000000000000;hpb=1322fd3377cc817720f7552a80d56dba447bcfea;p=ccan

diff --git a/ccan/tal/path/test/run-readlink.c b/ccan/tal/path/test/run-readlink.c
new file mode 100644
index 00000000..28dcf87e
--- /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();
+}