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