# HG changeset patch
# User Mark Thomas <mbthomas@fb.com>
# Date 1508504013 25200
#      Fri Oct 20 05:53:33 2017 -0700
# Branch stable
# Node ID 2c80a864e83eb05fdc9d17e78f1fc83ccffabde8
# Parent  aa05b95949fe53cbbe01f7dd933e90c3d17b8dec
tests: add a test demonstrating failure to clean up dirstate backups

Differential Revision: https://phab.mercurial-scm.org/D1200

diff --git a/tests/test-dirstate-backup.t b/tests/test-dirstate-backup.t
new file mode 100644
--- /dev/null
+++ b/tests/test-dirstate-backup.t
@@ -0,0 +1,19 @@
+Set up
+
+  $ hg init repo
+  $ cd repo
+
+Try to import an empty patch
+
+  $ hg import --no-commit - <<EOF
+  > EOF
+  applying patch from stdin
+  abort: stdin: no diffs found
+  [255]
+
+A dirstate backup is left behind
+
+  $ ls .hg/dirstate* | sort
+  .hg/dirstate
+  .hg/dirstate.backup.import.* (glob)
+