From cda09727b451b6b928cc0129c4be7d3127f1aaad Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Sat, 13 May 2017 19:10:15 +1000
Subject: [PATCH] tests/extmod/vfs_fat: Add test for ilistdir of a non-existent
 directory.

---
 tests/extmod/vfs_fat_ramdisk.py     | 6 ++++++
 tests/extmod/vfs_fat_ramdisk.py.exp | 1 +
 2 files changed, 7 insertions(+)

diff --git a/tests/extmod/vfs_fat_ramdisk.py b/tests/extmod/vfs_fat_ramdisk.py
index 89b40e3a24..fe72a8beff 100644
--- a/tests/extmod/vfs_fat_ramdisk.py
+++ b/tests/extmod/vfs_fat_ramdisk.py
@@ -93,3 +93,9 @@ uos.umount(vfs)
 
 vfs = uos.VfsFat(bdev)
 print(list(vfs.ilistdir(b"")))
+
+# list a non-existent directory
+try:
+    vfs.ilistdir(b"no_exist")
+except OSError as e:
+    print('ENOENT:', e.args[0] == uerrno.ENOENT)
diff --git a/tests/extmod/vfs_fat_ramdisk.py.exp b/tests/extmod/vfs_fat_ramdisk.py.exp
index 6298a7efdc..ccd0f7134c 100644
--- a/tests/extmod/vfs_fat_ramdisk.py.exp
+++ b/tests/extmod/vfs_fat_ramdisk.py.exp
@@ -13,3 +13,4 @@ getcwd: /foo_dir
 True
 getcwd: /
 [(b'foo_file.txt', 32768, 0), (b'foo_dir', 16384, 0)]
+ENOENT: True