[thirdparty/git.git] / t / t4034-diff-words.sh

#!/bin/sh

test_description='word diff colors'

TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-diff.sh

cat >pre.simple <<-\EOF
	h(4)

	a = b + c
EOF
cat >post.simple <<-\EOF
	h(4),hh[44]

	a = b + c

	aa = a

	aeff = aeff * ( aaa )
EOF
pre=$(git rev-parse --short $(git hash-object pre.simple))
post=$(git rev-parse --short $(git hash-object post.simple))
cat >expect.letter-runs-are-words <<-EOF
	<BOLD>diff --git a/pre b/post<RESET>
	<BOLD>index $pre..$post 100644<RESET>
	<BOLD>--- a/pre<RESET>
	<BOLD>+++ b/post<RESET>
	<CYAN>@@ -1,3 +1,7 @@<RESET>
	h(4),<GREEN>hh<RESET>[44]

	a = b + c<RESET>

	<GREEN>aa = a<RESET>

	<GREEN>aeff = aeff * ( aaa<RESET> )
EOF
cat >expect.non-whitespace-is-word <<-EOF
	<BOLD>diff --git a/pre b/post<RESET>
	<BOLD>index $pre..$post 100644<RESET>
	<BOLD>--- a/pre<RESET>
	<BOLD>+++ b/post<RESET>
	<CYAN>@@ -1,3 +1,7 @@<RESET>
	h(4)<GREEN>,hh[44]<RESET>

	a = b + c<RESET>

	<GREEN>aa = a<RESET>

	<GREEN>aeff = aeff * ( aaa )<RESET>
EOF

word_diff () {
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	test_must_fail git diff --no-index "$@" pre post >output &&
	test_decode_color <output >output.decrypted &&
	sed -e "2s/index [^ ]*/index $pre..$post/" expect >expected
	test_cmp expected output.decrypted
}

test_language_driver () {
	lang=$1
	test_expect_success "diff driver '$lang'" '
		cp "$TEST_DIRECTORY/t4034/'"$lang"'/pre" \
			"$TEST_DIRECTORY/t4034/'"$lang"'/post" \
			"$TEST_DIRECTORY/t4034/'"$lang"'/expect" . &&
		echo "* diff='"$lang"'" >.gitattributes &&
		word_diff --color-words
	'
	test_expect_success "diff driver '$lang' in Islandic" '
		LANG=is_IS.UTF-8 LANGUAGE=is LC_ALL="$is_IS_locale" \
		word_diff --color-words
	'
}

test_expect_success setup '
	git config diff.color.old red &&
	git config diff.color.new green &&
	git config diff.color.func magenta
'

test_expect_success 'set up pre and post with runs of whitespace' '
	cp pre.simple pre &&
	cp post.simple post
'

test_expect_success 'word diff with runs of whitespace' '
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1,3 +1,7 @@<RESET>
		<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>

		a = b + c<RESET>

		<GREEN>aa = a<RESET>

		<GREEN>aeff = aeff * ( aaa )<RESET>
	EOF
	word_diff --color-words &&
	word_diff --word-diff=color &&
	word_diff --color --word-diff=color
'

test_expect_success '--word-diff=porcelain' '
	sed "s/#.*$//" >expect <<-EOF &&
		diff --git a/pre b/post
		index $pre..$post 100644
		--- a/pre
		+++ b/post
		@@ -1,3 +1,7 @@
		-h(4)
		+h(4),hh[44]
		~
		 # significant space
		~
		 a = b + c
		~
		~
		+aa = a
		~
		~
		+aeff = aeff * ( aaa )
		~
	EOF
	word_diff --word-diff=porcelain
'

test_expect_success '--word-diff=plain' '
	cat >expect <<-EOF &&
		diff --git a/pre b/post
		index $pre..$post 100644
		--- a/pre
		+++ b/post
		@@ -1,3 +1,7 @@
		[-h(4)-]{+h(4),hh[44]+}

		a = b + c

		{+aa = a+}

		{+aeff = aeff * ( aaa )+}
	EOF
	word_diff --word-diff=plain &&
	word_diff --word-diff=plain --no-color
'

test_expect_success '--word-diff=plain --color' '
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1,3 +1,7 @@<RESET>
		<RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>

		a = b + c<RESET>

		<GREEN>{+aa = a+}<RESET>

		<GREEN>{+aeff = aeff * ( aaa )+}<RESET>
	EOF
	word_diff --word-diff=plain --color
'

test_expect_success 'word diff without context' '
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1 +1 @@<RESET>
		<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
		<CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>

		<GREEN>aa = a<RESET>

		<GREEN>aeff = aeff * ( aaa )<RESET>
	EOF
	word_diff --color-words --unified=0
'

test_expect_success 'word diff with a regular expression' '
	cp expect.letter-runs-are-words expect &&
	word_diff --color-words="[a-z]+"
'

test_expect_success 'word diff with zero length matches' '
	cp expect.letter-runs-are-words expect &&
	word_diff --color-words="[a-z${LF}]*"
'

test_expect_success 'set up a diff driver' '
	git config diff.testdriver.wordRegex "[^[:space:]]" &&
	cat <<-\EOF >.gitattributes
		pre diff=testdriver
		post diff=testdriver
	EOF
'

test_expect_success 'option overrides .gitattributes' '
	cp expect.letter-runs-are-words expect &&
	word_diff --color-words="[a-z]+"
'

test_expect_success 'use regex supplied by driver' '
	cp expect.non-whitespace-is-word expect &&
	word_diff --color-words
'

test_expect_success 'set up diff.wordRegex option' '
	git config diff.wordRegex "[[:alnum:]]+"
'

test_expect_success 'command-line overrides config' '
	cp expect.letter-runs-are-words expect &&
	word_diff --color-words="[a-z]+"
'

test_expect_success 'command-line overrides config: --word-diff-regex' '
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1,3 +1,7 @@<RESET>
		h(4),<GREEN>{+hh+}<RESET>[44]

		a = b + c<RESET>

		<GREEN>{+aa = a+}<RESET>

		<GREEN>{+aeff = aeff * ( aaa+}<RESET> )
	EOF
	word_diff --color --word-diff-regex="[a-z]+"
'

test_expect_success '.gitattributes override config' '
	cp expect.non-whitespace-is-word expect &&
	word_diff --color-words
'

test_expect_success 'setup: remove diff driver regex' '
	test_unconfig diff.testdriver.wordRegex
'

test_expect_success 'use configured regex' '
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1,3 +1,7 @@<RESET>
		h(4),<GREEN>hh[44<RESET>]

		a = b + c<RESET>

		<GREEN>aa = a<RESET>

		<GREEN>aeff = aeff * ( aaa<RESET> )
	EOF
	word_diff --color-words
'

test_expect_success 'test parsing words for newline' '
	echo "aaa (aaa)" >pre &&
	echo "aaa (aaa) aaa" >post &&
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1 +1 @@<RESET>
		aaa (aaa) <GREEN>aaa<RESET>
	EOF
	word_diff --color-words="a+"
'

test_expect_success 'test when words are only removed at the end' '
	echo "(:" >pre &&
	echo "(" >post &&
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	cat >expect <<-EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index $pre..$post 100644<RESET>
		<BOLD>--- a/pre<RESET>
		<BOLD>+++ b/post<RESET>
		<CYAN>@@ -1 +1 @@<RESET>
		(<RED>:<RESET>
	EOF
	word_diff --color-words=.
'

test_expect_success '--word-diff=none' '
	echo "(:" >pre &&
	echo "(" >post &&
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	cat >expect <<-EOF &&
		diff --git a/pre b/post
		index $pre..$post 100644
		--- a/pre
		+++ b/post
		@@ -1 +1 @@
		-(:
		+(
	EOF
	word_diff --word-diff=plain --word-diff=none
'

test_expect_success 'unset default driver' '
	test_unconfig diff.wordregex
'

test_language_driver ada
test_language_driver bibtex
test_language_driver cpp
test_language_driver csharp
test_language_driver css
test_language_driver dts
test_language_driver fortran
test_language_driver html
test_language_driver java
test_language_driver kotlin
test_language_driver matlab
test_language_driver objc
test_language_driver pascal
test_language_driver perl
test_language_driver php
test_language_driver python
test_language_driver ruby
test_language_driver scheme
test_language_driver tex

test_expect_success 'word-diff with diff.sbe' '
	cat >pre <<-\EOF &&
	a

	b
	EOF
	cat >post <<-\EOF &&
	a

	c
	EOF
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	cat >expect <<-EOF &&
	diff --git a/pre b/post
	index $pre..$post 100644
	--- a/pre
	+++ b/post
	@@ -1,3 +1,3 @@
	a

	[-b-]{+c+}
	EOF
	test_config diff.suppress-blank-empty true &&
	word_diff --word-diff=plain
'

test_expect_success 'word-diff with no newline at EOF' '
	printf "%s" "a a a a a" >pre &&
	printf "%s" "a a ab a a" >post &&
	pre=$(git rev-parse --short $(git hash-object pre)) &&
	post=$(git rev-parse --short $(git hash-object post)) &&
	cat >expect <<-EOF &&
	diff --git a/pre b/post
	index $pre..$post 100644
	--- a/pre
	+++ b/post
	@@ -1 +1 @@
	a a [-a-]{+ab+} a a
	EOF
	word_diff --word-diff=plain
'

test_expect_success 'setup history with two files' '
	echo "a b; c" >a.tex &&
	echo "a b; c" >z.txt &&
	git add a.tex z.txt &&
	git commit -minitial &&

	# modify both
	echo "a bx; c" >a.tex &&
	echo "a bx; c" >z.txt &&
	git commit -mmodified -a
'

test_expect_success 'wordRegex for the first file does not apply to the second' '
	echo "*.tex diff=tex" >.gitattributes &&
	test_config diff.tex.wordRegex "[a-z]+|." &&
	cat >expect <<-\EOF &&
		diff --git a/a.tex b/a.tex
		--- a/a.tex
		+++ b/a.tex
		@@ -1 +1 @@
		a [-b-]{+bx+}; c
		diff --git a/z.txt b/z.txt
		--- a/z.txt
		+++ b/z.txt
		@@ -1 +1 @@
		a [-b;-]{+bx;+} c
	EOF
	git diff --word-diff HEAD~ >actual &&
	compare_diff_patch expect actual
'

test_done
Commit	Line	Data
2e5d2003 JS	1	#!/bin/sh
	2
	3	test_description='word diff colors'
	4
16d4bd4f	5	TEST_PASSES_SANITIZE_LEAK=true
2e5d2003	6	. ./test-lib.sh
ebd73f50	7	. "$TEST_DIRECTORY"/lib-diff.sh
2e5d2003	8
5094d158 JN	9	cat >pre.simple <<-\EOF
5094d158 JN	10	h(4)
2e5d2003	11
5094d158 JN	12	a = b + c
	13	EOF
	14	cat >post.simple <<-\EOF
	15	h(4),hh[44]
2e5d2003	16
5094d158	17	a = b + c
2e5d2003	18
5094d158	19	aa = a
2e5d2003	20
5094d158	21	aeff = aeff * ( aaa )
2e5d2003	22	EOF
0253e126	23	pre=$(git rev-parse --short $(git hash-object pre.simple))
	24	post=$(git rev-parse --short $(git hash-object post.simple))
	25	cat >expect.letter-runs-are-words <<-EOF
5094d158	26	<BOLD>diff --git a/pre b/post<RESET>
0253e126	27	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	28	<BOLD>--- a/pre<RESET>
	29	<BOLD>+++ b/post<RESET>
	30	<CYAN>@@ -1,3 +1,7 @@<RESET>
	31	h(4),<GREEN>hh<RESET>[44]
2e5d2003	32
5094d158	33	a = b + c<RESET>
2e5d2003	34
5094d158	35	<GREEN>aa = a<RESET>
2e5d2003	36
5094d158	37	<GREEN>aeff = aeff * ( aaa<RESET> )
2e5d2003	38	EOF
0253e126	39	cat >expect.non-whitespace-is-word <<-EOF
5094d158	40	<BOLD>diff --git a/pre b/post<RESET>
0253e126	41	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	42	<BOLD>--- a/pre<RESET>
	43	<BOLD>+++ b/post<RESET>
	44	<CYAN>@@ -1,3 +1,7 @@<RESET>
	45	h(4)<GREEN>,hh[44]<RESET>
2e5d2003	46
5094d158	47	a = b + c<RESET>
2e5d2003	48
5094d158	49	<GREEN>aa = a<RESET>
2e5d2003	50
5094d158	51	<GREEN>aeff = aeff * ( aaa )<RESET>
2e5d2003 JS	52	EOF
2e5d2003 JS	53
5094d158	54	word_diff () {
0253e126	55	pre=$(git rev-parse --short $(git hash-object pre)) &&
0253e126	56	post=$(git rev-parse --short $(git hash-object post)) &&
5094d158 JN	57	test_must_fail git diff --no-index "$@" pre post >output &&
5094d158 JN	58	test_decode_color <output >output.decrypted &&
0253e126	59	sed -e "2s/index [^ ]*/index $pre..$post/" expect >expected
0253e126	60	test_cmp expected output.decrypted
5094d158	61	}
2e5d2003	62
5094d158 JN	63	test_language_driver () {
	64	lang=$1
	65	test_expect_success "diff driver '$lang'" '
	66	cp "$TEST_DIRECTORY/t4034/'"$lang"'/pre" \
	67	"$TEST_DIRECTORY/t4034/'"$lang"'/post" \
	68	"$TEST_DIRECTORY/t4034/'"$lang"'/expect" . &&
	69	echo "* diff='"$lang"'" >.gitattributes &&
	70	word_diff --color-words
	71	'
be391449 RS	72	test_expect_success "diff driver '$lang' in Islandic" '
	73	LANG=is_IS.UTF-8 LANGUAGE=is LC_ALL="$is_IS_locale" \
	74	word_diff --color-words
	75	'
5094d158	76	}
2e5d2003	77
5094d158 JN	78	test_expect_success setup '
	79	git config diff.color.old red &&
	80	git config diff.color.new green &&
	81	git config diff.color.func magenta
2e5d2003 JS	82	'
2e5d2003 JS	83
5094d158 JN	84	test_expect_success 'set up pre and post with runs of whitespace' '
	85	cp pre.simple pre &&
	86	cp post.simple post
882749a0 TR	87	'
882749a0 TR	88
5094d158	89	test_expect_success 'word diff with runs of whitespace' '
0253e126	90	cat >expect <<-EOF &&
5094d158	91	<BOLD>diff --git a/pre b/post<RESET>
0253e126	92	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	93	<BOLD>--- a/pre<RESET>
	94	<BOLD>+++ b/post<RESET>
	95	<CYAN>@@ -1,3 +1,7 @@<RESET>
	96	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	97
	98	a = b + c<RESET>
	99
	100	<GREEN>aa = a<RESET>
	101
	102	<GREEN>aeff = aeff * ( aaa )<RESET>
	103	EOF
	104	word_diff --color-words &&
	105	word_diff --word-diff=color &&
882749a0	106	word_diff --color --word-diff=color
882749a0 TR	107	'
882749a0 TR	108
882749a0	109	test_expect_success '--word-diff=porcelain' '
c76b84a1	110	sed "s/#.*$//" >expect <<-EOF &&
5094d158	111	diff --git a/pre b/post
0253e126	112	index $pre..$post 100644
5094d158 JN	113	--- a/pre
	114	+++ b/post
	115	@@ -1,3 +1,7 @@
	116	-h(4)
	117	+h(4),hh[44]
	118	~
	119	# significant space
	120	~
	121	a = b + c
	122	~
	123	~
	124	+aa = a
	125	~
	126	~
	127	+aeff = aeff * ( aaa )
	128	~
	129	EOF
882749a0	130	word_diff --word-diff=porcelain
882749a0 TR	131	'
882749a0 TR	132
882749a0	133	test_expect_success '--word-diff=plain' '
0253e126	134	cat >expect <<-EOF &&
5094d158	135	diff --git a/pre b/post
0253e126	136	index $pre..$post 100644
5094d158 JN	137	--- a/pre
	138	+++ b/post
	139	@@ -1,3 +1,7 @@
	140	[-h(4)-]{+h(4),hh[44]+}
882749a0	141
5094d158	142	a = b + c
882749a0	143
5094d158	144	{+aa = a+}
882749a0	145
5094d158 JN	146	{+aeff = aeff * ( aaa )+}
	147	EOF
	148	word_diff --word-diff=plain &&
882749a0	149	word_diff --word-diff=plain --no-color
882749a0 TR	150	'
882749a0 TR	151
5094d158	152	test_expect_success '--word-diff=plain --color' '
0253e126	153	cat >expect <<-EOF &&
5094d158	154	<BOLD>diff --git a/pre b/post<RESET>
0253e126	155	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	156	<BOLD>--- a/pre<RESET>
	157	<BOLD>+++ b/post<RESET>
	158	<CYAN>@@ -1,3 +1,7 @@<RESET>
	159	<RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>
882749a0	160
5094d158	161	a = b + c<RESET>
882749a0	162
5094d158	163	<GREEN>{+aa = a+}<RESET>
882749a0	164
5094d158 JN	165	<GREEN>{+aeff = aeff * ( aaa )+}<RESET>
5094d158 JN	166	EOF
882749a0	167	word_diff --word-diff=plain --color
882749a0 TR	168	'
882749a0 TR	169
a4ca1465	170	test_expect_success 'word diff without context' '
0253e126	171	cat >expect <<-EOF &&
5094d158	172	<BOLD>diff --git a/pre b/post<RESET>
0253e126	173	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	174	<BOLD>--- a/pre<RESET>
	175	<BOLD>+++ b/post<RESET>
	176	<CYAN>@@ -1 +1 @@<RESET>
	177	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	178	<CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
	179
	180	<GREEN>aa = a<RESET>
	181
	182	<GREEN>aeff = aeff * ( aaa )<RESET>
	183	EOF
168eff3c	184	word_diff --color-words --unified=0
168eff3c MH	185	'
168eff3c MH	186
2b6a5417	187	test_expect_success 'word diff with a regular expression' '
5094d158	188	cp expect.letter-runs-are-words expect &&
2b6a5417	189	word_diff --color-words="[a-z]+"
2b6a5417 JS	190	'
2b6a5417 JS	191
0324e8fc PW	192	test_expect_success 'word diff with zero length matches' '
	193	cp expect.letter-runs-are-words expect &&
	194	word_diff --color-words="[a-z${LF}]*"
	195	'
	196
5094d158	197	test_expect_success 'set up a diff driver' '
ae3b970a	198	git config diff.testdriver.wordRegex "[^[:space:]]" &&
5094d158 JN	199	cat <<-\EOF >.gitattributes
	200	pre diff=testdriver
	201	post diff=testdriver
	202	EOF
80c49c3d TR	203	'
80c49c3d TR	204
98a4d87b	205	test_expect_success 'option overrides .gitattributes' '
5094d158	206	cp expect.letter-runs-are-words expect &&
80c49c3d	207	word_diff --color-words="[a-z]+"
80c49c3d TR	208	'
80c49c3d TR	209
98a4d87b	210	test_expect_success 'use regex supplied by driver' '
5094d158	211	cp expect.non-whitespace-is-word expect &&
80c49c3d	212	word_diff --color-words
80c49c3d TR	213	'
80c49c3d TR	214
5094d158	215	test_expect_success 'set up diff.wordRegex option' '
ae3b970a	216	git config diff.wordRegex "[[:alnum:]]+"
98a4d87b BSSJ	217	'
98a4d87b BSSJ	218
98a4d87b	219	test_expect_success 'command-line overrides config' '
5094d158	220	cp expect.letter-runs-are-words expect &&
98a4d87b BSSJ	221	word_diff --color-words="[a-z]+"
	222	'
	223
5094d158	224	test_expect_success 'command-line overrides config: --word-diff-regex' '
0253e126	225	cat >expect <<-EOF &&
5094d158	226	<BOLD>diff --git a/pre b/post<RESET>
0253e126	227	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	228	<BOLD>--- a/pre<RESET>
	229	<BOLD>+++ b/post<RESET>
	230	<CYAN>@@ -1,3 +1,7 @@<RESET>
	231	h(4),<GREEN>{+hh+}<RESET>[44]
882749a0	232
5094d158	233	a = b + c<RESET>
882749a0	234
5094d158	235	<GREEN>{+aa = a+}<RESET>
882749a0	236
5094d158 JN	237	<GREEN>{+aeff = aeff * ( aaa+}<RESET> )
5094d158 JN	238	EOF
882749a0 TR	239	word_diff --color --word-diff-regex="[a-z]+"
	240	'
	241
98a4d87b	242	test_expect_success '.gitattributes override config' '
5094d158	243	cp expect.non-whitespace-is-word expect &&
98a4d87b BSSJ	244	word_diff --color-words
	245	'
	246
5094d158	247	test_expect_success 'setup: remove diff driver regex' '
ff73aa40	248	test_unconfig diff.testdriver.wordRegex
98a4d87b BSSJ	249	'
98a4d87b BSSJ	250
5094d158	251	test_expect_success 'use configured regex' '
0253e126	252	cat >expect <<-EOF &&
5094d158	253	<BOLD>diff --git a/pre b/post<RESET>
0253e126	254	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	255	<BOLD>--- a/pre<RESET>
	256	<BOLD>+++ b/post<RESET>
	257	<CYAN>@@ -1,3 +1,7 @@<RESET>
	258	h(4),<GREEN>hh[44<RESET>]
98a4d87b	259
5094d158	260	a = b + c<RESET>
98a4d87b	261
5094d158	262	<GREEN>aa = a<RESET>
98a4d87b	263
5094d158 JN	264	<GREEN>aeff = aeff * ( aaa<RESET> )
5094d158 JN	265	EOF
98a4d87b BSSJ	266	word_diff --color-words
	267	'
	268
2b6a5417	269	test_expect_success 'test parsing words for newline' '
5094d158 JN	270	echo "aaa (aaa)" >pre &&
5094d158 JN	271	echo "aaa (aaa) aaa" >post &&
0253e126	272	pre=$(git rev-parse --short $(git hash-object pre)) &&
	273	post=$(git rev-parse --short $(git hash-object post)) &&
	274	cat >expect <<-EOF &&
5094d158	275	<BOLD>diff --git a/pre b/post<RESET>
0253e126	276	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	277	<BOLD>--- a/pre<RESET>
	278	<BOLD>+++ b/post<RESET>
	279	<CYAN>@@ -1 +1 @@<RESET>
	280	aaa (aaa) <GREEN>aaa<RESET>
	281	EOF
2b6a5417	282	word_diff --color-words="a+"
2b6a5417 JS	283	'
2b6a5417 JS	284
2b6a5417	285	test_expect_success 'test when words are only removed at the end' '
5094d158 JN	286	echo "(:" >pre &&
5094d158 JN	287	echo "(" >post &&
0253e126	288	pre=$(git rev-parse --short $(git hash-object pre)) &&
	289	post=$(git rev-parse --short $(git hash-object post)) &&
	290	cat >expect <<-EOF &&
5094d158	291	<BOLD>diff --git a/pre b/post<RESET>
0253e126	292	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	293	<BOLD>--- a/pre<RESET>
	294	<BOLD>+++ b/post<RESET>
	295	<CYAN>@@ -1 +1 @@<RESET>
	296	(<RED>:<RESET>
	297	EOF
2b6a5417	298	word_diff --color-words=.
2b6a5417 JS	299	'
2b6a5417 JS	300
882749a0	301	test_expect_success '--word-diff=none' '
5094d158 JN	302	echo "(:" >pre &&
5094d158 JN	303	echo "(" >post &&
0253e126	304	pre=$(git rev-parse --short $(git hash-object pre)) &&
	305	post=$(git rev-parse --short $(git hash-object post)) &&
	306	cat >expect <<-EOF &&
5094d158	307	diff --git a/pre b/post
0253e126	308	index $pre..$post 100644
5094d158 JN	309	--- a/pre
	310	+++ b/post
	311	@@ -1 +1 @@
	312	-(:
	313	+(
	314	EOF
882749a0	315	word_diff --word-diff=plain --word-diff=none
882749a0 TR	316	'
882749a0 TR	317
62d39359 JS	318	test_expect_success 'unset default driver' '
	319	test_unconfig diff.wordregex
	320	'
	321
e90d065e	322	test_language_driver ada
5094d158 JN	323	test_language_driver bibtex
	324	test_language_driver cpp
	325	test_language_driver csharp
0719f3ee	326	test_language_driver css
3c81760b	327	test_language_driver dts
5094d158 JN	328	test_language_driver fortran
	329	test_language_driver html
	330	test_language_driver java
09188ed9	331	test_language_driver kotlin
53b10a14	332	test_language_driver matlab
5094d158 JN	333	test_language_driver objc
5094d158 JN	334	test_language_driver pascal
5269edf1	335	test_language_driver perl
5094d158 JN	336	test_language_driver php
	337	test_language_driver python
	338	test_language_driver ruby
a4373903	339	test_language_driver scheme
5094d158	340	test_language_driver tex
8d96e728	341
42536dd9	342	test_expect_success 'word-diff with diff.sbe' '
42536dd9 JM	343	cat >pre <<-\EOF &&
	344	a
	345
	346	b
	347	EOF
	348	cat >post <<-\EOF &&
	349	a
	350
	351	c
	352	EOF
0253e126	353	pre=$(git rev-parse --short $(git hash-object pre)) &&
	354	post=$(git rev-parse --short $(git hash-object post)) &&
	355	cat >expect <<-EOF &&
	356	diff --git a/pre b/post
	357	index $pre..$post 100644
	358	--- a/pre
	359	+++ b/post
	360	@@ -1,3 +1,3 @@
	361	a
	362
	363	[-b-]{+c+}
	364	EOF
ff73aa40	365	test_config diff.suppress-blank-empty true &&
42536dd9 JM	366	word_diff --word-diff=plain
	367	'
	368
c7c2bc0a	369	test_expect_success 'word-diff with no newline at EOF' '
0253e126	370	printf "%s" "a a a a a" >pre &&
	371	printf "%s" "a a ab a a" >post &&
	372	pre=$(git rev-parse --short $(git hash-object pre)) &&
	373	post=$(git rev-parse --short $(git hash-object post)) &&
	374	cat >expect <<-EOF &&
c7c2bc0a	375	diff --git a/pre b/post
0253e126	376	index $pre..$post 100644
c7c2bc0a TR	377	--- a/pre
	378	+++ b/post
	379	@@ -1 +1 @@
	380	a a [-a-]{+ab+} a a
	381	EOF
c7c2bc0a TR	382	word_diff --word-diff=plain
	383	'
	384
62d39359 JS	385	test_expect_success 'setup history with two files' '
	386	echo "a b; c" >a.tex &&
	387	echo "a b; c" >z.txt &&
	388	git add a.tex z.txt &&
	389	git commit -minitial &&
	390
	391	# modify both
	392	echo "a bx; c" >a.tex &&
	393	echo "a bx; c" >z.txt &&
	394	git commit -mmodified -a
	395	'
	396
6440d341	397	test_expect_success 'wordRegex for the first file does not apply to the second' '
62d39359	398	echo "*.tex diff=tex" >.gitattributes &&
ff73aa40	399	test_config diff.tex.wordRegex "[a-z]+\|." &&
62d39359 JS	400	cat >expect <<-\EOF &&
	401	diff --git a/a.tex b/a.tex
	402	--- a/a.tex
	403	+++ b/a.tex
	404	@@ -1 +1 @@
	405	a [-b-]{+bx+}; c
	406	diff --git a/z.txt b/z.txt
	407	--- a/z.txt
	408	+++ b/z.txt
	409	@@ -1 +1 @@
	410	a [-b;-]{+bx;+} c
	411	EOF
	412	git diff --word-diff HEAD~ >actual &&
	413	compare_diff_patch expect actual
	414	'
	415
2e5d2003	416	test_done