[PATCH v7 08/17] cat-file tests: test for current --allow-unknown-type behavior

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Add more tests for the current --allow-unknown-type behavior. As noted
in [1] I don't think much of this makes sense, but let's test for it
as-is so we can see if the behavior changes in the future.

1. https://lore.kernel.org/git/87r1i4qf4h.fsf@xxxxxxxxxxxxxxxxxxx/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 t/t1006-cat-file.sh | 61 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/t/t1006-cat-file.sh b/t/t1006-cat-file.sh
index 8bbc34efb0c..269ab7e4729 100755
--- a/t/t1006-cat-file.sh
+++ b/t/t1006-cat-file.sh
@@ -402,6 +402,67 @@ do
 	done
 done
 
+test_expect_success '-e is OK with a broken object without --allow-unknown-type' '
+	git cat-file -e $bogus_short_sha1
+'
+
+test_expect_success '-e can not be combined with --allow-unknown-type' '
+	test_expect_code 128 git cat-file -e --allow-unknown-type $bogus_short_sha1
+'
+
+test_expect_success '-p cannot print a broken object even with --allow-unknown-type' '
+	test_must_fail git cat-file -p $bogus_short_sha1 &&
+	test_expect_code 128 git cat-file -p --allow-unknown-type $bogus_short_sha1
+'
+
+test_expect_success '<type> <hash> does not work with objects of broken types' '
+	cat >err.expect <<-\EOF &&
+	fatal: invalid object type "bogus"
+	EOF
+	test_must_fail git cat-file $bogus_short_type $bogus_short_sha1 2>err.actual &&
+	test_cmp err.expect err.actual
+'
+
+test_expect_success 'broken types combined with --batch and --batch-check' '
+	echo $bogus_short_sha1 >bogus-oid &&
+
+	cat >err.expect <<-\EOF &&
+	fatal: invalid object type
+	EOF
+
+	test_must_fail git cat-file --batch <bogus-oid 2>err.actual &&
+	test_cmp err.expect err.actual &&
+
+	test_must_fail git cat-file --batch-check <bogus-oid 2>err.actual &&
+	test_cmp err.expect err.actual
+'
+
+test_expect_success 'the --batch and --batch-check options do not combine with --allow-unknown-type' '
+	test_expect_code 128 git cat-file --batch --allow-unknown-type <bogus-oid &&
+	test_expect_code 128 git cat-file --batch-check --allow-unknown-type <bogus-oid
+'
+
+test_expect_success 'the --allow-unknown-type option does not consider replacement refs' '
+	cat >expect <<-EOF &&
+	$bogus_short_type
+	EOF
+	git cat-file -t --allow-unknown-type $bogus_short_sha1 >actual &&
+	test_cmp expect actual &&
+
+	# Create it manually, as "git replace" will die on bogus
+	# types.
+	head=$(git rev-parse --verify HEAD) &&
+	test_when_finished "rm -rf .git/refs/replace" &&
+	mkdir -p .git/refs/replace &&
+	echo $head >.git/refs/replace/$bogus_short_sha1 &&
+
+	cat >expect <<-EOF &&
+	commit
+	EOF
+	git cat-file -t --allow-unknown-type $bogus_short_sha1 >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success "Type of broken object is correct" '
 	echo $bogus_short_type >expect &&
 	git cat-file -t --allow-unknown-type $bogus_short_sha1 >actual &&
-- 
2.33.0.1098.g29a6526ae47




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