1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/weird-exit-code.rs b/src/test/ui/weird-exit-code.rs
new file mode 100644
index 000000000..a067b7b5b
--- /dev/null
+++ b/src/test/ui/weird-exit-code.rs
@@ -0,0 +1,28 @@
+// run-pass
+// On Windows the GetExitCodeProcess API is used to get the exit code of a
+// process, but it's easy to mistake a process exiting with the code 259 as
+// "still running" because this is the value of the STILL_ACTIVE constant. Make
+// sure we handle this case in the standard library and correctly report the
+// status.
+//
+// Note that this is disabled on unix as processes exiting with 259 will have
+// their exit status truncated to 3 (only the lower 8 bits are used).
+
+#[cfg(windows)]
+fn main() {
+    use std::process::{self, Command};
+    use std::env;
+
+    if env::args().len() == 1 {
+        let status = Command::new(env::current_exe().unwrap())
+                             .arg("foo")
+                             .status()
+                             .unwrap();
+        assert_eq!(status.code(), Some(259));
+    } else {
+        process::exit(259);
+    }
+}
+
+#[cfg(not(windows))]
+fn main() {}