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-rw-r--r--test/failbackup.test23
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diff --git a/test/failbackup.test b/test/failbackup.test
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+++ b/test/failbackup.test
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+ $ mkdir patches
+
+ $ quilt new test.diff
+ > Patch %{P}test.diff is now on top
+
+ $ quilt add test.txt
+ > File test.txt added to patch %{P}test.diff
+ $ cat > test.txt
+ < This is test.txt.
+ $ quilt refresh
+ > Refreshed patch patches/test.diff
+
+What happens when refresh fails because of a permission error?
+
+ $ chmod -w patches
+ $ cat > test.txt
+ < This is updated test.txt.
+ $ quilt refresh --backup
+ >~ mv: cannot move [`']?%{P}test.diff'? to [`']?%{P}test.diff~'?: Permission denied
+ $ echo %{?}
+ > 1
+
+ $ chmod +w patches