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-rwxr-xr-xt/t0021-conversion.sh11
1 files changed, 11 insertions, 0 deletions
diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index 7bac2bcf26..e799e59544 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -268,4 +268,15 @@ test_expect_success 'disable filter with empty override' '
test_must_be_empty err
'
+test_expect_success 'diff does not reuse worktree files that need cleaning' '
+ test_config filter.counter.clean "echo . >>count; sed s/^/clean:/" &&
+ echo "file filter=counter" >.gitattributes &&
+ test_commit one file &&
+ test_commit two file &&
+
+ >count &&
+ git diff-tree -p HEAD &&
+ test_line_count = 0 count
+'
+
test_done