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Re: [PATCH 2/4] t1450: increase test coverage of in-tree d/f detection

From
René Scharfe <l.s.r@web.de>
Date
May 21, 2020, 13:31 UTC
Message-ID
<1f982a11-358c-195d-21f4-0299f5b60ff2@web.de>
In-Reply-To
<20200521102053.GA578930@generichostname>
Am 21.05.20 um 12:20 schrieb Denton Liu:
Show 34 quoted lines
> Hi René,
>
> On Thu, May 21, 2020 at 11:52:28AM +0200, René Scharfe wrote:
>> diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
>> index 91a6e34f38..9640ac8ff2 100755
>> --- a/t/t1450-fsck.sh
>> +++ b/t/t1450-fsck.sh
>> @@ -257,21 +257,33 @@ test_expect_success 'tree object with duplicate entries' '
>>  	test_i18ngrep "error in tree .*contains duplicate file entries" out
>>  '
>>
>> -test_expect_success 'tree object with dublicate names' '
>> -	test_when_finished "remove_object \$blob" &&
>> -	test_when_finished "remove_object \$tree" &&
>> -	test_when_finished "remove_object \$badtree" &&
>> -	blob=$(echo blob | git hash-object -w --stdin) &&
>> -	printf "100644 blob %s\t%s\n" $blob x.2 >tree &&
>> -	tree=$(git mktree <tree) &&
>> -	printf "100644 blob %s\t%s\n" $blob x.1 >badtree &&
>> -	printf "100644 blob %s\t%s\n" $blob x >>badtree &&
>> -	printf "040000 tree %s\t%s\n" $tree x >>badtree &&
>> -	badtree=$(git mktree <badtree) &&
>> -	test_must_fail git fsck 2>out &&
>> -	test_i18ngrep "$badtree" out &&
>> -	test_i18ngrep "error in tree .*contains duplicate file entries" out
>> -'
>> +check_duplicate_names () {
>> +	expect=$1 &&
>> +	shift &&
>> +	names=$@ &&
>
> It doesn't really make sense to use $@ here since we're not using the
> argument list behaviour of $@; we're just expanding it normally. I would
> replace this with $* instead.

The assignment to $names flattens the list, so $@ and $* behave the same here. I didn't think much about it, but it would be nice to support names that contain spaces, which we could do by writing the arguments to a file. And if we go that route then support for names with newlines would be nice as well. I'm not sure it's worth it, but a patch for that is below.

At least I'd like to keep the $@ as kind of a reminder that we want to pass on arguments (full names), not words.

Show 29 quoted lines
>
>> +	test_expect_$expect "tree object with duplicate names: $names" '
>> +		test_when_finished "remove_object \$blob" &&
>> +		test_when_finished "remove_object \$tree" &&
>> +		test_when_finished "remove_object \$badtree" &&
>> +		blob=$(echo blob | git hash-object -w --stdin) &&
>> +		printf "100644 blob %s\t%s\n" $blob x.2 >tree &&
>> +		tree=$(git mktree <tree) &&
>> +		for name in $names
>> +		do
>> +			case "$name" in
>> +			*/) printf "040000 tree %s\t%s\n" $tree "${name%/}" ;;
>> +			*)  printf "100644 blob %s\t%s\n" $blob "$name" ;;
>> +			esac
>> +		done >badtree &&
>> +		badtree=$(git mktree <badtree) &&
>> +		test_must_fail git fsck 2>out &&
>> +		test_i18ngrep "$badtree" out &&
>> +		test_i18ngrep "error in tree .*contains duplicate file entries" out
>> +	'
>> +}
>> +
>> +check_duplicate_names success x x.1 x/
>> +check_duplicate_names success x x.1.2 x.1/ x/
>>
>>  test_expect_success 'unparseable tree object' '
>>  	test_oid_cache <<-\EOF &&
>> --
>> 2.26.2
-- >8 --
Subject: [PATCH 5/4] t1450: support names with spaces in check_duplicate_names()
Signed-off-by: René Scharfe <l.s.r@web.de>
---
 t/t1450-fsck.sh | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index 344a2aad82..b1766c8e11 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -257,10 +257,20 @@ test_expect_success 'tree object with duplicate entries' '
 	test_i18ngrep "error in tree .*contains duplicate file entries" out
 '

+names_to_tree () {
+	awk -v blob="$1" -v tree="$2" -v RS='\0' -v FS='/' '
+		NF == 1 {printf "100644 blob %s\t%s%c", blob, $1, 0}
+		NF == 2 {printf "040000 tree %s\t%s%c", tree, $1, 0}
+	'
+}
+
 check_duplicate_names () {
 	expect=$1 &&
 	shift &&
-	names=$@ &&
+	for name in "$@"
+	do
+		printf "%s\0" "$name"
+	done >names &&
 	test_expect_$expect "tree object with duplicate names: $names" '
 		test_when_finished "remove_object \$blob" &&
 		test_when_finished "remove_object \$tree" &&
@@ -268,14 +278,8 @@ check_duplicate_names () {
 		blob=$(echo blob | git hash-object -w --stdin) &&
 		printf "100644 blob %s\t%s\n" $blob x.2 >tree &&
 		tree=$(git mktree <tree) &&
-		for name in $names
-		do
-			case "$name" in
-			*/) printf "040000 tree %s\t%s\n" $tree "${name%/}" ;;
-			*)  printf "100644 blob %s\t%s\n" $blob "$name" ;;
-			esac
-		done >badtree &&
-		badtree=$(git mktree <badtree) &&
+		names_to_tree $blob $tree <names >badtree &&
+		badtree=$(git mktree -z <badtree) &&
 		test_must_fail git fsck 2>out &&
 		test_i18ngrep "$badtree" out &&
 		test_i18ngrep "error in tree .*contains duplicate file entries" out
--
2.26.2
Previous: Denton LiuNext: Junio C Hamano
Message 18 of 23 in “invalid tree and commit object”
  1. Brandon WilliamsMay 9, 2020
  2. René ScharfeMay 9, 2020
  3. Johannes SchindelinMay 9, 2020
  4. René ScharfeMay 9, 2020
  5. Junio C HamanoMay 9, 2020
  6. René ScharfeMay 9, 2020
  7. Junio C HamanoMay 9, 2020
  8. René ScharfeMay 10, 2020
  9. René ScharfeMay 10, 2020
  10. Junio C HamanoMay 11, 2020
  11. Brandon WilliamsMay 13, 2020
  12. René ScharfeMay 21, 2020
  13. 1/4 fsck: fix a typo in a commentRené Scharfe, May 21, 2020
  14. Denton LiuMay 21, 2020
  15. René ScharfeMay 21, 2020
  16. 2/4 t1450: increase test coverage of in-tree d/f detectionRené Scharfe, May 21, 2020
  17. Denton LiuMay 21, 2020
  18. René ScharfeMay 21, 2020
  19. Junio C HamanoMay 21, 2020
  20. 3/4 t1450: demonstrate undetected in-tree d/f conflictRené Scharfe, May 21, 2020
  21. 4/4 fsck: detect more in-tree d/f conflictsRené Scharfe, May 21, 2020
  22. Junio C HamanoMay 10, 2020
  23. René ScharfeMay 21, 2020

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