[thirdparty/git.git] / t / t1404-update-ref-errors.sh

#!/bin/sh

test_description='Test git update-ref error handling'

TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh

# Create some references, perhaps run pack-refs --all, then try to
# create some more references. Ensure that the second creation fails
# with the correct error message.
# Usage: test_update_rejected <before> <pack> <create> <error>
#   <before> is a ws-separated list of refs to create before the test
#   <pack> (true or false) tells whether to pack the refs before the test
#   <create> is a list of variables to attempt creating
#   <error> is a string to look for in the stderr of update-ref.
# All references are created in the namespace specified by the current
# value of $prefix.
test_update_rejected () {
	before="$1" &&
	pack="$2" &&
	create="$3" &&
	error="$4" &&
	printf "create $prefix/%s $C\n" $before |
	git update-ref --stdin &&
	git for-each-ref $prefix >unchanged &&
	if $pack
	then
		git pack-refs --all
	fi &&
	printf "create $prefix/%s $C\n" $create >input &&
	test_must_fail git update-ref --stdin <input 2>output.err &&
	test_grep -F "$error" output.err &&
	git for-each-ref $prefix >actual &&
	test_cmp unchanged actual
}

# Test adding and deleting D/F-conflicting references in a single
# transaction.
df_test() {
	prefix="$1"
	pack=: symadd=false symdel=false add_del=false addref= delref=
	shift
	while test $# -gt 0
	do
		case "$1" in
		--pack)
			pack="git pack-refs --all"
			shift
			;;
		--sym-add)
			# Perform the add via a symbolic reference
			symadd=true
			shift
			;;
		--sym-del)
			# Perform the del via a symbolic reference
			symdel=true
			shift
			;;
		--del-add)
			# Delete first reference then add second
			add_del=false
			delref="$prefix/r/$2"
			addref="$prefix/r/$3"
			shift 3
			;;
		--add-del)
			# Add first reference then delete second
			add_del=true
			addref="$prefix/r/$2"
			delref="$prefix/r/$3"
			shift 3
			;;
		*)
			echo 1>&2 "Extra args to df_test: $*"
			return 1
			;;
		esac
	done
	git update-ref "$delref" $C &&
	if $symadd
	then
		addname="$prefix/s/symadd" &&
		git symbolic-ref "$addname" "$addref"
	else
		addname="$addref"
	fi &&
	if $symdel
	then
		delname="$prefix/s/symdel" &&
		git symbolic-ref "$delname" "$delref"
	else
		delname="$delref"
	fi &&
	$pack &&
	if $add_del
	then
		printf "%s\n" "create $addname $D" "delete $delname"
	else
		printf "%s\n" "delete $delname" "create $addname $D"
	fi >commands &&
	test_must_fail git update-ref --stdin <commands 2>output.err &&
	grep "fatal:\( cannot lock ref $SQ$addname$SQ:\)\? $SQ$delref$SQ exists; cannot create $SQ$addref$SQ" output.err &&
	printf "%s\n" "$C $delref" >expected-refs &&
	git for-each-ref --format="%(objectname) %(refname)" $prefix/r >actual-refs &&
	test_cmp expected-refs actual-refs
}

test_expect_success 'setup' '

	git commit --allow-empty -m Initial &&
	C=$(git rev-parse HEAD) &&
	git commit --allow-empty -m Second &&
	D=$(git rev-parse HEAD) &&
	git commit --allow-empty -m Third &&
	E=$(git rev-parse HEAD)
'

test_expect_success 'existing loose ref is a simple prefix of new' '

	prefix=refs/1l &&
	test_update_rejected "a c e" false "b c/x d" \
		"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"

'

test_expect_success 'existing packed ref is a simple prefix of new' '

	prefix=refs/1p &&
	test_update_rejected "a c e" true "b c/x d" \
		"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"

'

test_expect_success 'existing loose ref is a deeper prefix of new' '

	prefix=refs/2l &&
	test_update_rejected "a c e" false "b c/x/y d" \
		"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"

'

test_expect_success 'existing packed ref is a deeper prefix of new' '

	prefix=refs/2p &&
	test_update_rejected "a c e" true "b c/x/y d" \
		"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"

'

test_expect_success 'new ref is a simple prefix of existing loose' '

	prefix=refs/3l &&
	test_update_rejected "a c/x e" false "b c d" \
		"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"

'

test_expect_success 'new ref is a simple prefix of existing packed' '

	prefix=refs/3p &&
	test_update_rejected "a c/x e" true "b c d" \
		"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"

'

test_expect_success 'new ref is a deeper prefix of existing loose' '

	prefix=refs/4l &&
	test_update_rejected "a c/x/y e" false "b c d" \
		"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"

'

test_expect_success 'new ref is a deeper prefix of existing packed' '

	prefix=refs/4p &&
	test_update_rejected "a c/x/y e" true "b c d" \
		"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"

'

test_expect_success 'one new ref is a simple prefix of another' '

	prefix=refs/5 &&
	test_update_rejected "a e" false "b c c/x d" \
		"cannot process $SQ$prefix/c$SQ and $SQ$prefix/c/x$SQ at the same time"

'

test_expect_success 'D/F conflict prevents add long + delete short' '
	df_test refs/df-al-ds --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents add short + delete long' '
	df_test refs/df-as-dl --add-del foo foo/bar
'

test_expect_success 'D/F conflict prevents delete long + add short' '
	df_test refs/df-dl-as --del-add foo/bar foo
'

test_expect_success 'D/F conflict prevents delete short + add long' '
	df_test refs/df-ds-al --del-add foo foo/bar
'

test_expect_success 'D/F conflict prevents add long + delete short packed' '
	df_test refs/df-al-dsp --pack --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents add short + delete long packed' '
	df_test refs/df-as-dlp --pack --add-del foo foo/bar
'

test_expect_success 'D/F conflict prevents delete long packed + add short' '
	df_test refs/df-dlp-as --pack --del-add foo/bar foo
'

test_expect_success 'D/F conflict prevents delete short packed + add long' '
	df_test refs/df-dsp-al --pack --del-add foo foo/bar
'

# Try some combinations involving symbolic refs...

test_expect_success 'D/F conflict prevents indirect add long + delete short' '
	df_test refs/df-ial-ds --sym-add --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents indirect add long + indirect delete short' '
	df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents indirect add short + indirect delete long' '
	df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar
'

test_expect_success 'D/F conflict prevents indirect delete long + indirect add short' '
	df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo
'

test_expect_success 'D/F conflict prevents indirect add long + delete short packed' '
	df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents indirect add long + indirect delete short packed' '
	df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents add long + indirect delete short packed' '
	df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo
'

test_expect_success 'D/F conflict prevents indirect delete long packed + indirect add short' '
	df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo
'

# Test various errors when reading the old values of references...

test_expect_success 'missing old value blocks update' '
	prefix=refs/missing-update &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
	EOF
	printf "%s\n" "update $prefix/foo $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks update' '
	prefix=refs/incorrect-update &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "update $prefix/foo $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks create' '
	prefix=refs/existing-create &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/foo$SQ: reference already exists
	EOF
	printf "%s\n" "create $prefix/foo $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks delete' '
	prefix=refs/incorrect-delete &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "delete $prefix/foo $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'missing old value blocks indirect update' '
	prefix=refs/missing-indirect-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
	EOF
	printf "%s\n" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect update' '
	prefix=refs/incorrect-indirect-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks indirect create' '
	prefix=refs/existing-indirect-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
	EOF
	printf "%s\n" "create $prefix/symref $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect delete' '
	prefix=refs/incorrect-indirect-delete &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "delete $prefix/symref $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'missing old value blocks indirect no-deref update' '
	prefix=refs/missing-noderef-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference is missing but expected $D
	EOF
	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect no-deref update' '
	prefix=refs/incorrect-noderef-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks indirect no-deref create' '
	prefix=refs/existing-noderef-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
	EOF
	printf "%s\n" "option no-deref" "create $prefix/symref $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect no-deref delete' '
	prefix=refs/incorrect-noderef-delete &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
	EOF
	printf "%s\n" "option no-deref" "delete $prefix/symref $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_done
Commit	Line	Data
433efcad MH	1	#!/bin/sh
433efcad MH	2
bf0c6603	3	test_description='Test git update-ref error handling'
03267e86 ÆAB	4
03267e86 ÆAB	5	TEST_PASSES_SANITIZE_LEAK=true
433efcad MH	6	. ./test-lib.sh
433efcad MH	7
017f7221 MH	8	# Create some references, perhaps run pack-refs --all, then try to
	9	# create some more references. Ensure that the second creation fails
	10	# with the correct error message.
	11	# Usage: test_update_rejected <before> <pack> <create> <error>
	12	# <before> is a ws-separated list of refs to create before the test
	13	# <pack> (true or false) tells whether to pack the refs before the test
	14	# <create> is a list of variables to attempt creating
	15	# <error> is a string to look for in the stderr of update-ref.
	16	# All references are created in the namespace specified by the current
	17	# value of $prefix.
433efcad	18	test_update_rejected () {
0e4b63b5 MH	19	before="$1" &&
	20	pack="$2" &&
	21	create="$3" &&
	22	error="$4" &&
433efcad MH	23	printf "create $prefix/%s $C\n" $before \|
	24	git update-ref --stdin &&
	25	git for-each-ref $prefix >unchanged &&
	26	if $pack
	27	then
	28	git pack-refs --all
	29	fi &&
	30	printf "create $prefix/%s $C\n" $create >input &&
	31	test_must_fail git update-ref --stdin <input 2>output.err &&
6789275d	32	test_grep -F "$error" output.err &&
433efcad MH	33	git for-each-ref $prefix >actual &&
	34	test_cmp unchanged actual
	35	}
	36
2e9de01a MH	37	# Test adding and deleting D/F-conflicting references in a single
	38	# transaction.
	39	df_test() {
	40	prefix="$1"
	41	pack=: symadd=false symdel=false add_del=false addref= delref=
	42	shift
	43	while test $# -gt 0
	44	do
	45	case "$1" in
	46	--pack)
	47	pack="git pack-refs --all"
	48	shift
	49	;;
	50	--sym-add)
	51	# Perform the add via a symbolic reference
	52	symadd=true
	53	shift
	54	;;
	55	--sym-del)
	56	# Perform the del via a symbolic reference
	57	symdel=true
	58	shift
	59	;;
	60	--del-add)
	61	# Delete first reference then add second
	62	add_del=false
	63	delref="$prefix/r/$2"
	64	addref="$prefix/r/$3"
	65	shift 3
	66	;;
	67	--add-del)
	68	# Add first reference then delete second
	69	add_del=true
	70	addref="$prefix/r/$2"
	71	delref="$prefix/r/$3"
	72	shift 3
	73	;;
	74	*)
	75	echo 1>&2 "Extra args to df_test: $*"
	76	return 1
	77	;;
	78	esac
	79	done
	80	git update-ref "$delref" $C &&
	81	if $symadd
	82	then
	83	addname="$prefix/s/symadd" &&
	84	git symbolic-ref "$addname" "$addref"
	85	else
	86	addname="$addref"
	87	fi &&
	88	if $symdel
	89	then
	90	delname="$prefix/s/symdel" &&
	91	git symbolic-ref "$delname" "$delref"
	92	else
	93	delname="$delref"
	94	fi &&
2e9de01a MH	95	$pack &&
	96	if $add_del
	97	then
	98	printf "%s\n" "create $addname $D" "delete $delname"
	99	else
	100	printf "%s\n" "delete $delname" "create $addname $D"
	101	fi >commands &&
	102	test_must_fail git update-ref --stdin <commands 2>output.err &&
3f87bb2c	103	grep "fatal:\( cannot lock ref $SQ$addname$SQ:\)\? $SQ$delref$SQ exists; cannot create $SQ$addref$SQ" output.err &&
2e9de01a MH	104	printf "%s\n" "$C $delref" >expected-refs &&
	105	git for-each-ref --format="%(objectname) %(refname)" $prefix/r >actual-refs &&
	106	test_cmp expected-refs actual-refs
	107	}
	108
433efcad MH	109	test_expect_success 'setup' '
	110
	111	git commit --allow-empty -m Initial &&
19dd7d06 MH	112	C=$(git rev-parse HEAD) &&
19dd7d06 MH	113	git commit --allow-empty -m Second &&
c5119dcf MH	114	D=$(git rev-parse HEAD) &&
	115	git commit --allow-empty -m Third &&
	116	E=$(git rev-parse HEAD)
433efcad MH	117	'
	118
	119	test_expect_success 'existing loose ref is a simple prefix of new' '
	120
	121	prefix=refs/1l &&
0e4b63b5	122	test_update_rejected "a c e" false "b c/x d" \
bd482d6e	123	"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
433efcad MH	124
	125	'
	126
	127	test_expect_success 'existing packed ref is a simple prefix of new' '
	128
	129	prefix=refs/1p &&
0e4b63b5	130	test_update_rejected "a c e" true "b c/x d" \
bd482d6e	131	"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
433efcad MH	132
	133	'
	134
	135	test_expect_success 'existing loose ref is a deeper prefix of new' '
	136
	137	prefix=refs/2l &&
0e4b63b5	138	test_update_rejected "a c e" false "b c/x/y d" \
bd482d6e	139	"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
433efcad MH	140
	141	'
	142
	143	test_expect_success 'existing packed ref is a deeper prefix of new' '
	144
	145	prefix=refs/2p &&
0e4b63b5	146	test_update_rejected "a c e" true "b c/x/y d" \
bd482d6e	147	"$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
433efcad MH	148
	149	'
	150
	151	test_expect_success 'new ref is a simple prefix of existing loose' '
	152
	153	prefix=refs/3l &&
0e4b63b5	154	test_update_rejected "a c/x e" false "b c d" \
bd482d6e	155	"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
433efcad MH	156
	157	'
	158
	159	test_expect_success 'new ref is a simple prefix of existing packed' '
	160
	161	prefix=refs/3p &&
0e4b63b5	162	test_update_rejected "a c/x e" true "b c d" \
bd482d6e	163	"$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
433efcad MH	164
	165	'
	166
	167	test_expect_success 'new ref is a deeper prefix of existing loose' '
	168
	169	prefix=refs/4l &&
0e4b63b5	170	test_update_rejected "a c/x/y e" false "b c d" \
bd482d6e	171	"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
433efcad MH	172
	173	'
	174
	175	test_expect_success 'new ref is a deeper prefix of existing packed' '
	176
	177	prefix=refs/4p &&
0e4b63b5	178	test_update_rejected "a c/x/y e" true "b c d" \
bd482d6e	179	"$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
433efcad MH	180
	181	'
	182
e911104c	183	test_expect_success 'one new ref is a simple prefix of another' '
433efcad MH	184
433efcad MH	185	prefix=refs/5 &&
0e4b63b5	186	test_update_rejected "a e" false "b c c/x d" \
bd482d6e	187	"cannot process $SQ$prefix/c$SQ and $SQ$prefix/c/x$SQ at the same time"
433efcad MH	188
	189	'
	190
3f87bb2c	191	test_expect_success 'D/F conflict prevents add long + delete short' '
2e9de01a MH	192	df_test refs/df-al-ds --add-del foo/bar foo
	193	'
	194
3f87bb2c	195	test_expect_success 'D/F conflict prevents add short + delete long' '
2e9de01a MH	196	df_test refs/df-as-dl --add-del foo foo/bar
	197	'
	198
3f87bb2c	199	test_expect_success 'D/F conflict prevents delete long + add short' '
2e9de01a MH	200	df_test refs/df-dl-as --del-add foo/bar foo
	201	'
	202
3f87bb2c	203	test_expect_success 'D/F conflict prevents delete short + add long' '
2e9de01a MH	204	df_test refs/df-ds-al --del-add foo foo/bar
	205	'
	206
3f87bb2c	207	test_expect_success 'D/F conflict prevents add long + delete short packed' '
2e9de01a MH	208	df_test refs/df-al-dsp --pack --add-del foo/bar foo
	209	'
	210
3f87bb2c	211	test_expect_success 'D/F conflict prevents add short + delete long packed' '
2e9de01a MH	212	df_test refs/df-as-dlp --pack --add-del foo foo/bar
	213	'
	214
3f87bb2c	215	test_expect_success 'D/F conflict prevents delete long packed + add short' '
2e9de01a MH	216	df_test refs/df-dlp-as --pack --del-add foo/bar foo
	217	'
	218
3f87bb2c	219	test_expect_success 'D/F conflict prevents delete short packed + add long' '
2e9de01a MH	220	df_test refs/df-dsp-al --pack --del-add foo foo/bar
	221	'
	222
	223	# Try some combinations involving symbolic refs...
	224
3f87bb2c	225	test_expect_success 'D/F conflict prevents indirect add long + delete short' '
2e9de01a MH	226	df_test refs/df-ial-ds --sym-add --add-del foo/bar foo
	227	'
	228
3f87bb2c	229	test_expect_success 'D/F conflict prevents indirect add long + indirect delete short' '
2e9de01a MH	230	df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo
	231	'
	232
3f87bb2c	233	test_expect_success 'D/F conflict prevents indirect add short + indirect delete long' '
2e9de01a MH	234	df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar
	235	'
	236
3f87bb2c	237	test_expect_success 'D/F conflict prevents indirect delete long + indirect add short' '
2e9de01a MH	238	df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo
	239	'
	240
3f87bb2c	241	test_expect_success 'D/F conflict prevents indirect add long + delete short packed' '
2e9de01a MH	242	df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo
	243	'
	244
3f87bb2c	245	test_expect_success 'D/F conflict prevents indirect add long + indirect delete short packed' '
2e9de01a MH	246	df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo
	247	'
	248
3f87bb2c	249	test_expect_success 'D/F conflict prevents add long + indirect delete short packed' '
2e9de01a MH	250	df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo
	251	'
	252
3f87bb2c	253	test_expect_success 'D/F conflict prevents indirect delete long packed + indirect add short' '
2e9de01a MH	254	df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo
	255	'
	256
c5119dcf MH	257	# Test various errors when reading the old values of references...
	258
	259	test_expect_success 'missing old value blocks update' '
	260	prefix=refs/missing-update &&
	261	cat >expected <<-EOF &&
bd482d6e	262	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
c5119dcf MH	263	EOF
	264	printf "%s\n" "update $prefix/foo $E $D" \|
	265	test_must_fail git update-ref --stdin 2>output.err &&
	266	test_cmp expected output.err
	267	'
	268
	269	test_expect_success 'incorrect old value blocks update' '
	270	prefix=refs/incorrect-update &&
	271	git update-ref $prefix/foo $C &&
	272	cat >expected <<-EOF &&
bd482d6e	273	fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
c5119dcf MH	274	EOF
	275	printf "%s\n" "update $prefix/foo $E $D" \|
	276	test_must_fail git update-ref --stdin 2>output.err &&
	277	test_cmp expected output.err
	278	'
	279
	280	test_expect_success 'existing old value blocks create' '
	281	prefix=refs/existing-create &&
	282	git update-ref $prefix/foo $C &&
	283	cat >expected <<-EOF &&
bd482d6e	284	fatal: cannot lock ref $SQ$prefix/foo$SQ: reference already exists
c5119dcf MH	285	EOF
	286	printf "%s\n" "create $prefix/foo $E" \|
	287	test_must_fail git update-ref --stdin 2>output.err &&
	288	test_cmp expected output.err
	289	'
	290
	291	test_expect_success 'incorrect old value blocks delete' '
	292	prefix=refs/incorrect-delete &&
	293	git update-ref $prefix/foo $C &&
	294	cat >expected <<-EOF &&
bd482d6e	295	fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
c5119dcf MH	296	EOF
	297	printf "%s\n" "delete $prefix/foo $D" \|
	298	test_must_fail git update-ref --stdin 2>output.err &&
	299	test_cmp expected output.err
	300	'
	301
	302	test_expect_success 'missing old value blocks indirect update' '
	303	prefix=refs/missing-indirect-update &&
	304	git symbolic-ref $prefix/symref $prefix/foo &&
	305	cat >expected <<-EOF &&
bd482d6e	306	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
c5119dcf MH	307	EOF
	308	printf "%s\n" "update $prefix/symref $E $D" \|
	309	test_must_fail git update-ref --stdin 2>output.err &&
	310	test_cmp expected output.err
	311	'
	312
	313	test_expect_success 'incorrect old value blocks indirect update' '
	314	prefix=refs/incorrect-indirect-update &&
	315	git symbolic-ref $prefix/symref $prefix/foo &&
	316	git update-ref $prefix/foo $C &&
	317	cat >expected <<-EOF &&
bd482d6e	318	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
c5119dcf MH	319	EOF
	320	printf "%s\n" "update $prefix/symref $E $D" \|
	321	test_must_fail git update-ref --stdin 2>output.err &&
	322	test_cmp expected output.err
	323	'
	324
	325	test_expect_success 'existing old value blocks indirect create' '
	326	prefix=refs/existing-indirect-create &&
	327	git symbolic-ref $prefix/symref $prefix/foo &&
	328	git update-ref $prefix/foo $C &&
	329	cat >expected <<-EOF &&
bd482d6e	330	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
c5119dcf MH	331	EOF
	332	printf "%s\n" "create $prefix/symref $E" \|
	333	test_must_fail git update-ref --stdin 2>output.err &&
	334	test_cmp expected output.err
	335	'
	336
	337	test_expect_success 'incorrect old value blocks indirect delete' '
	338	prefix=refs/incorrect-indirect-delete &&
	339	git symbolic-ref $prefix/symref $prefix/foo &&
	340	git update-ref $prefix/foo $C &&
	341	cat >expected <<-EOF &&
bd482d6e	342	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
c5119dcf MH	343	EOF
	344	printf "%s\n" "delete $prefix/symref $D" \|
	345	test_must_fail git update-ref --stdin 2>output.err &&
	346	test_cmp expected output.err
	347	'
	348
	349	test_expect_success 'missing old value blocks indirect no-deref update' '
	350	prefix=refs/missing-noderef-update &&
	351	git symbolic-ref $prefix/symref $prefix/foo &&
	352	cat >expected <<-EOF &&
bd482d6e	353	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference is missing but expected $D
c5119dcf MH	354	EOF
	355	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" \|
	356	test_must_fail git update-ref --stdin 2>output.err &&
	357	test_cmp expected output.err
	358	'
	359
	360	test_expect_success 'incorrect old value blocks indirect no-deref update' '
	361	prefix=refs/incorrect-noderef-update &&
	362	git symbolic-ref $prefix/symref $prefix/foo &&
	363	git update-ref $prefix/foo $C &&
	364	cat >expected <<-EOF &&
bd482d6e	365	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
c5119dcf MH	366	EOF
	367	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" \|
	368	test_must_fail git update-ref --stdin 2>output.err &&
	369	test_cmp expected output.err
	370	'
	371
e3f51039	372	test_expect_success 'existing old value blocks indirect no-deref create' '
c5119dcf MH	373	prefix=refs/existing-noderef-create &&
	374	git symbolic-ref $prefix/symref $prefix/foo &&
	375	git update-ref $prefix/foo $C &&
	376	cat >expected <<-EOF &&
bd482d6e	377	fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
c5119dcf MH	378	EOF
	379	printf "%s\n" "option no-deref" "create $prefix/symref $E" \|
	380	test_must_fail git update-ref --stdin 2>output.err &&
	381	test_cmp expected output.err
	382	'
	383
	384	test_expect_success 'incorrect old value blocks indirect no-deref delete' '
	385	prefix=refs/incorrect-noderef-delete &&
	386	git symbolic-ref $prefix/symref $prefix/foo &&
	387	git update-ref $prefix/foo $C &&
	388	cat >expected <<-EOF &&
bd482d6e	389	fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
c5119dcf MH	390	EOF
	391	printf "%s\n" "option no-deref" "delete $prefix/symref $D" \|
	392	test_must_fail git update-ref --stdin 2>output.err &&
	393	test_cmp expected output.err
	394	'
	395
433efcad	396	test_done