1 files changed, 428 insertions, 2 deletions
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index bbee2783ab..eb1691860d 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -892,17 +892,23 @@ test_expect_success 'stdin update/create/verify combination works' '
 '
 
 test_expect_success 'stdin verify succeeds for correct value' '
+	test-tool ref-store main for-each-reflog-ent $m >before &&
 	git rev-parse $m >expect &&
 	echo "verify $m $m" >stdin &&
 	git update-ref --stdin <stdin &&
 	git rev-parse $m >actual &&
-	test_cmp expect actual
+	test_cmp expect actual &&
+	test-tool ref-store main for-each-reflog-ent $m >after &&
+	test_cmp before after
 '
 
 test_expect_success 'stdin verify succeeds for missing reference' '
+	test-tool ref-store main for-each-reflog-ent $m >before &&
 	echo "verify refs/heads/missing $Z" >stdin &&
 	git update-ref --stdin <stdin &&
-	test_must_fail git rev-parse --verify -q refs/heads/missing
+	test_must_fail git rev-parse --verify -q refs/heads/missing &&
+	test-tool ref-store main for-each-reflog-ent $m >after &&
+	test_cmp before after
 '
 
 test_expect_success 'stdin verify treats no value as missing' '
@@ -1356,6 +1362,7 @@ test_expect_success 'fails with duplicate HEAD update' '
 '
 
 test_expect_success 'fails with duplicate ref update via symref' '
+	test_when_finished "git symbolic-ref -d refs/heads/symref2" &&
 	git branch target2 $A &&
 	git symbolic-ref refs/heads/symref2 refs/heads/target2 &&
 	cat >stdin <<-EOF &&
@@ -1643,4 +1650,423 @@ test_expect_success PIPE 'transaction flushes status updates' '
 	test_cmp expected actual
 '
 
+format_command () {
+	if test "$1" = "-z"
+	then
+		shift
+		printf "$F" "$@"
+	else
+		echo "$@"
+	fi
+}
+
+for type in "" "-z"
+do
+
+	test_expect_success "stdin $type symref-verify fails without --no-deref" '
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-verify refs/heads/symref" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type <stdin 2>err &&
+		grep "fatal: symref-verify: cannot operate with deref mode" err
+	'
+
+	test_expect_success "stdin $type symref-verify fails with too many arguments" '
+		format_command $type "symref-verify refs/heads/symref" "$a" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err  &&
+		if test "$type" = "-z"
+		then
+			grep "fatal: unknown command: $a" err
+		else
+			grep "fatal: symref-verify refs/heads/symref: extra input:  $a" err
+		fi
+	'
+
+	test_expect_success "stdin $type symref-verify succeeds for correct value" '
+		git symbolic-ref refs/heads/symref >expect &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >before &&
+		format_command $type "symref-verify refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >after &&
+		test_cmp before after
+	'
+
+	test_expect_success "stdin $type symref-verify fails with no value" '
+		git symbolic-ref refs/heads/symref >expect &&
+		format_command $type "symref-verify refs/heads/symref" "" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin
+	'
+
+	test_expect_success "stdin $type symref-verify succeeds for dangling reference" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref2" &&
+		test_must_fail git symbolic-ref refs/heads/nonexistent &&
+		git symbolic-ref refs/heads/symref2 refs/heads/nonexistent &&
+		format_command $type "symref-verify refs/heads/symref2" "refs/heads/nonexistent" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin
+	'
+
+	test_expect_success "stdin $type symref-verify fails for missing reference" '
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >before &&
+		format_command $type "symref-verify refs/heads/missing" "refs/heads/unknown" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: cannot lock ref ${SQ}refs/heads/missing${SQ}: unable to resolve reference ${SQ}refs/heads/missing${SQ}" err &&
+		test_must_fail git rev-parse --verify -q refs/heads/missing &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >after &&
+		test_cmp before after
+	'
+
+	test_expect_success "stdin $type symref-verify fails for wrong value" '
+		git symbolic-ref refs/heads/symref >expect &&
+		format_command $type "symref-verify refs/heads/symref" "$b" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-verify fails for mistaken null value" '
+		git symbolic-ref refs/heads/symref >expect &&
+		format_command $type "symref-verify refs/heads/symref" "$Z" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-delete fails without --no-deref" '
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-delete refs/heads/symref" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type <stdin 2>err &&
+		grep "fatal: symref-delete: cannot operate with deref mode" err
+	'
+
+	test_expect_success "stdin $type symref-delete fails with no ref" '
+		format_command $type "symref-delete " >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: symref-delete: missing <ref>" err
+	'
+
+	test_expect_success "stdin $type symref-delete fails deleting regular ref" '
+		test_when_finished "git update-ref -d refs/heads/regularref" &&
+		git update-ref refs/heads/regularref $a &&
+		format_command $type "symref-delete refs/heads/regularref" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: cannot lock ref ${SQ}refs/heads/regularref${SQ}: expected symref with target ${SQ}$a${SQ}: but is a regular ref" err
+	'
+
+	test_expect_success "stdin $type symref-delete fails with too many arguments" '
+		format_command $type "symref-delete refs/heads/symref" "$a" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		if test "$type" = "-z"
+		then
+			grep "fatal: unknown command: $a" err
+		else
+			grep "fatal: symref-delete refs/heads/symref: extra input:  $a" err
+		fi
+	'
+
+	test_expect_success "stdin $type symref-delete fails with wrong old value" '
+		format_command $type "symref-delete refs/heads/symref" "$m" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: verifying symref target: ${SQ}refs/heads/symref${SQ}: is at $a but expected refs/heads/main" err &&
+		git symbolic-ref refs/heads/symref >expect &&
+		echo $a >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-delete works with right old value" '
+		format_command $type "symref-delete refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		test_must_fail git rev-parse --verify -q refs/heads/symref
+	'
+
+	test_expect_success "stdin $type symref-delete works with empty old value" '
+		git symbolic-ref refs/heads/symref $a >stdin &&
+		format_command $type "symref-delete refs/heads/symref" "" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		test_must_fail git rev-parse --verify -q $b
+	'
+
+	test_expect_success "stdin $type symref-delete succeeds for dangling reference" '
+		test_must_fail git symbolic-ref refs/heads/nonexistent &&
+		git symbolic-ref refs/heads/symref2 refs/heads/nonexistent &&
+		format_command $type "symref-delete refs/heads/symref2" "refs/heads/nonexistent" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		test_must_fail git symbolic-ref -d refs/heads/symref2
+	'
+
+	test_expect_success "stdin $type symref-delete deletes regular ref without target" '
+		git update-ref refs/heads/regularref $a &&
+		format_command $type "symref-delete refs/heads/regularref" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin
+	'
+
+	test_expect_success "stdin $type symref-create fails with too many arguments" '
+		format_command $type "symref-create refs/heads/symref" "$a" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		if test "$type" = "-z"
+		then
+			grep "fatal: unknown command: $a" err
+		else
+			grep "fatal: symref-create refs/heads/symref: extra input:  $a" err
+		fi
+	'
+
+	test_expect_success "stdin $type symref-create fails with no target" '
+		format_command $type "symref-create refs/heads/symref" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin
+	'
+
+	test_expect_success "stdin $type symref-create fails with empty target" '
+		format_command $type "symref-create refs/heads/symref" "" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin
+	'
+
+	test_expect_success "stdin $type symref-create works" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-create refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >expect &&
+		echo $a >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-create works with --no-deref" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-create refs/heads/symref" "$a" &&
+		git update-ref --stdin $type <stdin 2>err
+	'
+
+	test_expect_success "stdin $type create dangling symref ref works" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-create refs/heads/symref" "refs/heads/unkown" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >expect &&
+		echo refs/heads/unkown >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-create does not create reflogs by default" '
+		test_when_finished "git symbolic-ref -d refs/symref" &&
+		format_command $type "symref-create refs/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/symref >expect &&
+		echo $a >actual &&
+		test_cmp expect actual &&
+		test_must_fail git reflog exists refs/symref
+	'
+
+	test_expect_success "stdin $type symref-create reflogs with --create-reflog" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-create refs/heads/symref" "$a" >stdin &&
+		git update-ref --create-reflog --stdin $type --no-deref <stdin &&
+		git symbolic-ref refs/heads/symref >expect &&
+		echo $a >actual &&
+		test_cmp expect actual &&
+		git reflog exists refs/heads/symref
+	'
+
+	test_expect_success "stdin $type symref-update fails with too many arguments" '
+		format_command $type "symref-update refs/heads/symref" "$a" "ref" "$a" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		if test "$type" = "-z"
+		then
+			grep "fatal: unknown command: $a" err
+		else
+			grep "fatal: symref-update refs/heads/symref: extra input:  $a" err
+		fi
+	'
+
+	test_expect_success "stdin $type symref-update fails with wrong old value argument" '
+		format_command $type "symref-update refs/heads/symref" "$a" "foo" "$a" "$a" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: symref-update refs/heads/symref: invalid arg ${SQ}foo${SQ} for old value" err
+	'
+
+	test_expect_success "stdin $type symref-update creates with zero old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-update refs/heads/symref" "$a" "oid" "$Z" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $a >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update creates with no old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-update refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $a >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update creates dangling" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		test_must_fail git rev-parse refs/heads/nonexistent &&
+		format_command $type "symref-update refs/heads/symref" "refs/heads/nonexistent" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo refs/heads/nonexistent >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update fails with wrong old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-update refs/heads/symref" "$m" "ref" "$b" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin 2>err &&
+		grep "fatal: verifying symref target: ${SQ}refs/heads/symref${SQ}: is at $a but expected $b" err &&
+		test_must_fail git rev-parse --verify -q $c
+	'
+
+	test_expect_success "stdin $type symref-update updates dangling ref" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		test_must_fail git rev-parse refs/heads/nonexistent &&
+		git symbolic-ref refs/heads/symref refs/heads/nonexistent &&
+		format_command $type "symref-update refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $a >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update updates dangling ref with old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		test_must_fail git rev-parse refs/heads/nonexistent &&
+		git symbolic-ref refs/heads/symref refs/heads/nonexistent &&
+		format_command $type "symref-update refs/heads/symref" "$a" "ref" "refs/heads/nonexistent" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $a >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update fails update dangling ref with wrong old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		test_must_fail git rev-parse refs/heads/nonexistent &&
+		git symbolic-ref refs/heads/symref refs/heads/nonexistent &&
+		format_command $type "symref-update refs/heads/symref" "$a" "ref" "refs/heads/wrongref" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin &&
+		echo refs/heads/nonexistent >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update works with right old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-update refs/heads/symref" "$m" "ref" "$a" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $m >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update works with no old value" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-update refs/heads/symref" "$m" >stdin &&
+		git update-ref --stdin $type --no-deref <stdin &&
+		echo $m >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update fails with empty old ref-target" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		git symbolic-ref refs/heads/symref $a &&
+		format_command $type "symref-update refs/heads/symref" "$m" "ref" "" >stdin &&
+		test_must_fail git update-ref --stdin $type --no-deref <stdin &&
+		echo $a >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update creates (with deref)" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		format_command $type "symref-update refs/heads/symref" "$a" >stdin &&
+		git update-ref --stdin $type <stdin &&
+		echo $a >expect &&
+		git symbolic-ref --no-recurse refs/heads/symref >actual &&
+		test_cmp expect actual &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >actual &&
+		grep "$Z $(git rev-parse $a)" actual
+	'
+
+	test_expect_success "stdin $type symref-update regular ref to symref with correct old-oid" '
+		test_when_finished "git symbolic-ref -d --no-recurse refs/heads/regularref" &&
+		git update-ref --no-deref refs/heads/regularref $a &&
+		format_command $type "symref-update refs/heads/regularref" "$a" "oid" "$(git rev-parse $a)" >stdin &&
+		git update-ref --stdin $type <stdin &&
+		echo $a >expect &&
+		git symbolic-ref --no-recurse refs/heads/regularref >actual &&
+		test_cmp expect actual &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/regularref >actual &&
+		grep "$(git rev-parse $a) $(git rev-parse $a)" actual
+	'
+
+	test_expect_success "stdin $type symref-update regular ref to symref fails with wrong old-oid" '
+		test_when_finished "git update-ref -d refs/heads/regularref" &&
+		git update-ref --no-deref refs/heads/regularref $a &&
+		format_command $type "symref-update refs/heads/regularref" "$a" "oid" "$(git rev-parse refs/heads/target2)" >stdin &&
+		test_must_fail git update-ref --stdin $type <stdin 2>err &&
+		grep "fatal: cannot lock ref ${SQ}refs/heads/regularref${SQ}: is at $(git rev-parse $a) but expected $(git rev-parse refs/heads/target2)" err &&
+		echo $(git rev-parse $a) >expect &&
+		git rev-parse refs/heads/regularref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update regular ref to symref fails with invalid old-oid" '
+		test_when_finished "git update-ref -d refs/heads/regularref" &&
+		git update-ref --no-deref refs/heads/regularref $a &&
+		format_command $type "symref-update refs/heads/regularref" "$a" "oid" "not-a-ref-oid" >stdin &&
+		test_must_fail git update-ref --stdin $type <stdin 2>err &&
+		grep "fatal: symref-update refs/heads/regularref: invalid oid: not-a-ref-oid" err &&
+		echo $(git rev-parse $a) >expect &&
+		git rev-parse refs/heads/regularref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update existing symref with zero old-oid" '
+		test_when_finished "git symbolic-ref -d --no-recurse refs/heads/symref" &&
+		git symbolic-ref refs/heads/symref refs/heads/target2 &&
+		format_command $type "symref-update refs/heads/symref" "$a" "oid" "$Z" >stdin &&
+		test_must_fail git update-ref --stdin $type <stdin 2>err &&
+		grep "fatal: cannot lock ref ${SQ}refs/heads/symref${SQ}: reference already exists" err &&
+		echo refs/heads/target2 >expect &&
+		git symbolic-ref refs/heads/symref >actual &&
+		test_cmp expect actual
+	'
+
+	test_expect_success "stdin $type symref-update regular ref to symref (with deref)" '
+		test_when_finished "git symbolic-ref -d refs/heads/symref" &&
+		test_when_finished "git update-ref -d --no-deref refs/heads/symref2" &&
+		git update-ref refs/heads/symref2 $a &&
+		git symbolic-ref --no-recurse refs/heads/symref refs/heads/symref2 &&
+		format_command $type "symref-update refs/heads/symref" "$a" >stdin &&
+		git update-ref $type --stdin <stdin &&
+		echo $a >expect &&
+		git symbolic-ref --no-recurse refs/heads/symref2 >actual &&
+		test_cmp expect actual &&
+		echo refs/heads/symref2 >expect &&
+		git symbolic-ref --no-recurse refs/heads/symref >actual &&
+		test_cmp expect actual &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/symref >actual &&
+		grep "$(git rev-parse $a) $(git rev-parse $a)" actual
+	'
+
+	test_expect_success "stdin $type symref-update regular ref to symref" '
+		test_when_finished "git symbolic-ref -d --no-recurse refs/heads/regularref" &&
+		git update-ref --no-deref refs/heads/regularref $a &&
+		format_command $type "symref-update refs/heads/regularref" "$a" >stdin &&
+		git update-ref $type --stdin <stdin &&
+		echo $a >expect &&
+		git symbolic-ref --no-recurse refs/heads/regularref >actual &&
+		test_cmp expect actual &&
+		test-tool ref-store main for-each-reflog-ent refs/heads/regularref >actual &&
+		grep "$(git rev-parse $a) $(git rev-parse $a)" actual
+	'
+
+done
+
 test_done