1 files changed, 53 insertions, 0 deletions
diff --git a/tests/utime/test_utime.c b/tests/utime/test_utime.c
new file mode 100644
index 00000000..1793f4a5
--- /dev/null
+++ b/tests/utime/test_utime.c
@@ -0,0 +1,53 @@
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/stat.h>
+
+void setup() {
+  mkdir("writeable", 0777);
+  mkdir("unwriteable", 0111);
+}
+
+void cleanup() {
+  rmdir("writeable");
+  rmdir("unwriteable");
+}
+
+void test() {
+  struct stat s;
+  // currently, the most recent timestamp is shared for atime,
+  // ctime and mtime. using unique values for each in the test
+  // will fail
+  struct utimbuf t = {1000000000, 1000000000};
+
+  utime("writeable", &t);
+  assert(!errno);
+  memset(&s, 0, sizeof s);
+  stat("writeable", &s);
+  assert(s.st_atime == t.actime);
+  assert(s.st_mtime == t.modtime);
+
+  // write permissions aren't checked when setting node
+  // attributes unless the user uid isn't the owner (so
+  // therefor, this should work fine)
+  utime("unwriteable", &t);
+  assert(!errno);
+  memset(&s, 0, sizeof s);
+  stat("unwriteable", &s);
+  assert(s.st_atime == t.actime);
+  assert(s.st_mtime == t.modtime);
+
+  puts("success");
+}
+
+int main() {
+  atexit(cleanup);
+  signal(SIGABRT, cleanup);
+  setup();
+  test();
+  return EXIT_SUCCESS;
+}
+\ No newline at end of file