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[PATCH] t0021: make sure clean filter runs

From
Thomas Gummerer <t.gummerer@gmail.com>
Date
Aug 20, 2019, 06:56 UTC
Message-ID
<20190820065625.128130-1-t.gummerer@gmail.com>

In t0021.15 one of the things we are checking is that the clean filter is run when checking out empty-branch. The clean filter needs to be run to make sure there are no modifications on the file system for the test.r file, and thus it isn't dangerous to overwrite it.

However in the current test setup it is not always necessary to run the clean filter, and thus the test sometimes fails, as debug.log isn't written.

This happens when test.r has an older mtime than the index itself. That mtime is also recorded as stat data for test.r in the index, and based on the heuristic we're using for index entries, git correctly assumes this file is up-to-date.

Usually this test succeeds because the mtime of test.r is the same as the mtime of the index. In this case test.r is racily clean, so git actually checks the contents, for which the clean filter is run.

Fix the test by updating the mtime of test.r, so git is forced to check the contents of the file, and the clean filter is run as the test expects.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
---
 t/t0021-conversion.sh | 1 +
 1 file changed, 1 insertion(+)
diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index e10f5f787f..66f75005d5 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -390,6 +390,7 @@ test_expect_success PERL 'required process filter should filter data' '
 		EOF
 		test_cmp_exclude_clean expected.log debug.log &&
 
+		touch test.r &&
 		filter_git checkout --quiet --no-progress empty-branch &&
 		cat >expected.log <<-EOF &&
 			START
-- 
2.23.0.rc2.194.ge5444969c9
Next: Junio C Hamano
Message 1 of 14 in “t0021: make sure clean filter runs”
  1. t0021: make sure clean filter runsThomas Gummerer, Aug 20, 2019
  2. Junio C HamanoAug 20, 2019
  3. Thomas GummererAug 21, 2019
  4. Junio C HamanoAug 21, 2019
  5. Johannes SixtAug 20, 2019
  6. Thomas GummererAug 21, 2019
  7. Johannes SixtAug 21, 2019
  8. SZEDER GáborAug 21, 2019
  9. Thomas GummererAug 22, 2019
  10. Junio C HamanoAug 22, 2019
  11. Johannes SixtAug 22, 2019
  12. t0021: make sure clean filter runsThomas Gummerer, Aug 22, 2019
  13. Junio C HamanoAug 22, 2019
  14. SZEDER GáborAug 23, 2019

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