From c8bae7493d2f2910b57f13ded012e86bdcfb0532 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 16:47:53 +0200
Subject: Adding upstream version 1:2.39.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 t/t1060-object-corruption.sh | 149 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100755 t/t1060-object-corruption.sh

(limited to 't/t1060-object-corruption.sh')

diff --git a/t/t1060-object-corruption.sh b/t/t1060-object-corruption.sh
new file mode 100755
index 0000000..35261af
--- /dev/null
+++ b/t/t1060-object-corruption.sh
@@ -0,0 +1,149 @@
+#!/bin/sh
+
+test_description='see how we handle various forms of corruption'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+# convert "1234abcd" to ".git/objects/12/34abcd"
+obj_to_file() {
+	echo "$(git rev-parse --git-dir)/objects/$(git rev-parse "$1" | sed 's,..,&/,')"
+}
+
+# Convert byte at offset "$2" of object "$1" into '\0'
+corrupt_byte() {
+	obj_file=$(obj_to_file "$1") &&
+	chmod +w "$obj_file" &&
+	printf '\0' | dd of="$obj_file" bs=1 seek="$2" conv=notrunc
+}
+
+test_expect_success 'setup corrupt repo' '
+	git init bit-error &&
+	(
+		cd bit-error &&
+		test_commit content &&
+		corrupt_byte HEAD:content.t 10
+	) &&
+	git init no-bit-error &&
+	(
+		# distinct commit from bit-error, but containing a
+		# non-corrupted version of the same blob
+		cd no-bit-error &&
+		test_tick &&
+		test_commit content
+	)
+'
+
+test_expect_success 'setup repo with missing object' '
+	git init missing &&
+	(
+		cd missing &&
+		test_commit content &&
+		rm -f "$(obj_to_file HEAD:content.t)"
+	)
+'
+
+test_expect_success 'setup repo with misnamed object' '
+	git init misnamed &&
+	(
+		cd misnamed &&
+		test_commit content &&
+		good=$(obj_to_file HEAD:content.t) &&
+		blob=$(echo corrupt | git hash-object -w --stdin) &&
+		bad=$(obj_to_file $blob) &&
+		rm -f "$good" &&
+		mv "$bad" "$good"
+	)
+'
+
+test_expect_success 'streaming a corrupt blob fails' '
+	(
+		cd bit-error &&
+		test_must_fail git cat-file blob HEAD:content.t
+	)
+'
+
+test_expect_success 'getting type of a corrupt blob fails' '
+	(
+		cd bit-error &&
+		test_must_fail git cat-file -s HEAD:content.t
+	)
+'
+
+test_expect_success 'read-tree -u detects bit-errors in blobs' '
+	(
+		cd bit-error &&
+		rm -f content.t &&
+		test_must_fail git read-tree --reset -u HEAD
+	)
+'
+
+test_expect_success 'read-tree -u detects missing objects' '
+	(
+		cd missing &&
+		rm -f content.t &&
+		test_must_fail git read-tree --reset -u HEAD
+	)
+'
+
+# We use --bare to make sure that the transport detects it, not the checkout
+# phase.
+test_expect_success 'clone --no-local --bare detects corruption' '
+	test_must_fail git clone --no-local --bare bit-error corrupt-transport
+'
+
+test_expect_success 'clone --no-local --bare detects missing object' '
+	test_must_fail git clone --no-local --bare missing missing-transport
+'
+
+test_expect_success 'clone --no-local --bare detects misnamed object' '
+	test_must_fail git clone --no-local --bare misnamed misnamed-transport
+'
+
+# We do not expect --local to detect corruption at the transport layer,
+# so we are really checking the checkout() code path.
+test_expect_success 'clone --local detects corruption' '
+	test_must_fail git clone --local bit-error corrupt-checkout
+'
+
+test_expect_success 'error detected during checkout leaves repo intact' '
+	test_path_is_dir corrupt-checkout/.git
+'
+
+test_expect_success 'clone --local detects missing objects' '
+	test_must_fail git clone --local missing missing-checkout
+'
+
+test_expect_failure 'clone --local detects misnamed objects' '
+	test_must_fail git clone --local misnamed misnamed-checkout
+'
+
+test_expect_success 'fetch into corrupted repo with index-pack' '
+	cp -R bit-error bit-error-cp &&
+	test_when_finished "rm -rf bit-error-cp" &&
+	(
+		cd bit-error-cp &&
+		test_must_fail git -c transfer.unpackLimit=1 \
+			fetch ../no-bit-error 2>stderr &&
+		test_i18ngrep ! -i collision stderr
+	)
+'
+
+test_expect_success 'internal tree objects are not "missing"' '
+	git init missing-empty &&
+	(
+		cd missing-empty &&
+		empty_tree=$(git hash-object -t tree /dev/null) &&
+		commit=$(echo foo | git commit-tree $empty_tree) &&
+		git rev-list --objects $commit
+	)
+'
+
+test_expect_success 'partial clone of corrupted repository' '
+	test_config -C misnamed uploadpack.allowFilter true &&
+	git clone --no-local --no-checkout --filter=blob:none \
+		misnamed corrupt-partial && \
+	test_must_fail git -C corrupt-partial checkout --force
+'
+
+test_done
-- 
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