[PATCH v2] generic/245: Filter mv error message

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Coreutils commit 3cb862ce5f10 ( mv: better diagnostic for 'mv dir x' failure)
was released in v9.4, changed the error message from
'mv: cannot move 'b/t' to 'a/t': Directory not empty' to
'mv: cannot overwrite 'a/t': Directory not empty' in case of
EDQUOT/EEXIST/EISDIR/EMLINK/ENOSPC/ENOTEMPTY/ETXTBSY.

The change breaks generic/245 due to the mismatched output:

generic/245 1s ... - output mismatch (see /root/xfstests-dev/results//generic/245.out.bad)
    --- tests/generic/245.out   2023-10-05 11:15:21.124295738 +0800
    +++ /root/xfstests-dev/results//generic/245.out.bad 2023-10-05 11:15:23.456315468 +0800
    @@ -1,2 +1,2 @@
    QA output created by 245
    -mv: cannot move 'TEST_DIR/test-mv/ab/aa/' to 'TEST_DIR/test-mv/aa': File exists
    +mv: cannot overwrite 'TEST_DIR/test-mv/aa': File exists
    ...
    (Run 'diff -u /root/xfstests-dev/tests/generic/245.out /root/xfstests-dev/results//generic/245.out.bad'  to see the entire diff)

Filter out and replace mv error messages to fix the test.

Signed-off-by: Su Yue <glass.su@xxxxxxxx>
---
v2:
  change sed regrex expression as Zorro suggested.
---
 tests/generic/245     | 5 ++++-
 tests/generic/245.out | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests/generic/245 b/tests/generic/245
index e2d5c926e906..8e0f22366db3 100755
--- a/tests/generic/245
+++ b/tests/generic/245
@@ -29,9 +29,12 @@ _cleanup()
 # According to the rename(2) manpage you can get either EEXIST or ENOTEMPTY as an
 # error for trying to rename a non-empty directory, so just catch the error for
 # ENOTMEMPTY and replace it with the EEXIST output so that either result passes
+# Also, mv v9.4+ modified error message when a nonempty destination directory fails
+# to be overwriteen
 _filter_directory_not_empty()
 {
-	sed -e "s,Directory not empty,File exists,g"
+	sed -e "s,Directory not empty,File exists,g" \
+		-e "s,cannot move .* to \(.*\):\(.*\),cannot overwrite \1:\2,g"
 }
  
 
diff --git a/tests/generic/245.out b/tests/generic/245.out
index f5b5f182619d..19b598e4a175 100644
--- a/tests/generic/245.out
+++ b/tests/generic/245.out
@@ -1,2 +1,2 @@
 QA output created by 245
-mv: cannot move 'TEST_DIR/test-mv/ab/aa/' to 'TEST_DIR/test-mv/aa': File exists
+mv: cannot overwrite 'TEST_DIR/test-mv/aa': File exists
-- 
2.41.0




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