tests/posix: Add a test for POSIX bug 1859

... which requires we process root paths strictly in-order.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/bftw.c b/src/bftw.c
index f822456..6d1475e 100644
--- a/src/bftw.c
+++ b/src/bftw.c
@@ -1485,7 +1485,8 @@ fail:
 
 /** Check if we should stat() a file asynchronously. */
 static bool bftw_should_ioq_stat(struct bftw_state *state, struct bftw_file *file) {
-	// To avoid surprising users too much, process the roots in order
+	// POSIX wants the root paths to be processed in order
+	// See https://www.austingroupbugs.net/view.php?id=1859
 	if (file->depth == 0) {
 		return false;
 	}