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

#!/bin/sh

test_description='word diff colors'

. ./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" '
		test_env 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 bash
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
	5	. ./test-lib.sh
ebd73f50	6	. "$TEST_DIRECTORY"/lib-diff.sh
2e5d2003	7
5094d158 JN	8	cat >pre.simple <<-\EOF
5094d158 JN	9	h(4)
2e5d2003	10
5094d158 JN	11	a = b + c
	12	EOF
	13	cat >post.simple <<-\EOF
	14	h(4),hh[44]
2e5d2003	15
5094d158	16	a = b + c
2e5d2003	17
5094d158	18	aa = a
2e5d2003	19
5094d158	20	aeff = aeff * ( aaa )
2e5d2003	21	EOF
0253e126	22	pre=$(git rev-parse --short $(git hash-object pre.simple))
	23	post=$(git rev-parse --short $(git hash-object post.simple))
	24	cat >expect.letter-runs-are-words <<-EOF
5094d158	25	<BOLD>diff --git a/pre b/post<RESET>
0253e126	26	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	27	<BOLD>--- a/pre<RESET>
	28	<BOLD>+++ b/post<RESET>
	29	<CYAN>@@ -1,3 +1,7 @@<RESET>
	30	h(4),<GREEN>hh<RESET>[44]
2e5d2003	31
5094d158	32	a = b + c<RESET>
2e5d2003	33
5094d158	34	<GREEN>aa = a<RESET>
2e5d2003	35
5094d158	36	<GREEN>aeff = aeff * ( aaa<RESET> )
2e5d2003	37	EOF
0253e126	38	cat >expect.non-whitespace-is-word <<-EOF
5094d158	39	<BOLD>diff --git a/pre b/post<RESET>
0253e126	40	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	41	<BOLD>--- a/pre<RESET>
	42	<BOLD>+++ b/post<RESET>
	43	<CYAN>@@ -1,3 +1,7 @@<RESET>
	44	h(4)<GREEN>,hh[44]<RESET>
2e5d2003	45
5094d158	46	a = b + c<RESET>
2e5d2003	47
5094d158	48	<GREEN>aa = a<RESET>
2e5d2003	49
5094d158	50	<GREEN>aeff = aeff * ( aaa )<RESET>
2e5d2003 JS	51	EOF
2e5d2003 JS	52
5094d158	53	word_diff () {
0253e126	54	pre=$(git rev-parse --short $(git hash-object pre)) &&
0253e126	55	post=$(git rev-parse --short $(git hash-object post)) &&
5094d158 JN	56	test_must_fail git diff --no-index "$@" pre post >output &&
5094d158 JN	57	test_decode_color <output >output.decrypted &&
0253e126	58	sed -e "2s/index [^ ]*/index $pre..$post/" expect >expected
0253e126	59	test_cmp expected output.decrypted
5094d158	60	}
2e5d2003	61
5094d158 JN	62	test_language_driver () {
	63	lang=$1
	64	test_expect_success "diff driver '$lang'" '
	65	cp "$TEST_DIRECTORY/t4034/'"$lang"'/pre" \
	66	"$TEST_DIRECTORY/t4034/'"$lang"'/post" \
	67	"$TEST_DIRECTORY/t4034/'"$lang"'/expect" . &&
	68	echo "* diff='"$lang"'" >.gitattributes &&
	69	word_diff --color-words
	70	'
be391449	71	test_expect_success "diff driver '$lang' in Islandic" '
5e91056a	72	test_env LANG=is_IS.UTF-8 LANGUAGE=is LC_ALL="$is_IS_locale" \
be391449 RS	73	word_diff --color-words
be391449 RS	74	'
5094d158	75	}
2e5d2003	76
5094d158 JN	77	test_expect_success setup '
	78	git config diff.color.old red &&
	79	git config diff.color.new green &&
	80	git config diff.color.func magenta
2e5d2003 JS	81	'
2e5d2003 JS	82
5094d158 JN	83	test_expect_success 'set up pre and post with runs of whitespace' '
	84	cp pre.simple pre &&
	85	cp post.simple post
882749a0 TR	86	'
882749a0 TR	87
5094d158	88	test_expect_success 'word diff with runs of whitespace' '
0253e126	89	cat >expect <<-EOF &&
5094d158	90	<BOLD>diff --git a/pre b/post<RESET>
0253e126	91	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	92	<BOLD>--- a/pre<RESET>
	93	<BOLD>+++ b/post<RESET>
	94	<CYAN>@@ -1,3 +1,7 @@<RESET>
	95	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	96
	97	a = b + c<RESET>
	98
	99	<GREEN>aa = a<RESET>
	100
	101	<GREEN>aeff = aeff * ( aaa )<RESET>
	102	EOF
	103	word_diff --color-words &&
	104	word_diff --word-diff=color &&
882749a0	105	word_diff --color --word-diff=color
882749a0 TR	106	'
882749a0 TR	107
882749a0	108	test_expect_success '--word-diff=porcelain' '
c76b84a1	109	sed "s/#.*$//" >expect <<-EOF &&
5094d158	110	diff --git a/pre b/post
0253e126	111	index $pre..$post 100644
5094d158 JN	112	--- a/pre
	113	+++ b/post
	114	@@ -1,3 +1,7 @@
	115	-h(4)
	116	+h(4),hh[44]
	117	~
	118	# significant space
	119	~
	120	a = b + c
	121	~
	122	~
	123	+aa = a
	124	~
	125	~
	126	+aeff = aeff * ( aaa )
	127	~
	128	EOF
882749a0	129	word_diff --word-diff=porcelain
882749a0 TR	130	'
882749a0 TR	131
882749a0	132	test_expect_success '--word-diff=plain' '
0253e126	133	cat >expect <<-EOF &&
5094d158	134	diff --git a/pre b/post
0253e126	135	index $pre..$post 100644
5094d158 JN	136	--- a/pre
	137	+++ b/post
	138	@@ -1,3 +1,7 @@
	139	[-h(4)-]{+h(4),hh[44]+}
882749a0	140
5094d158	141	a = b + c
882749a0	142
5094d158	143	{+aa = a+}
882749a0	144
5094d158 JN	145	{+aeff = aeff * ( aaa )+}
	146	EOF
	147	word_diff --word-diff=plain &&
882749a0	148	word_diff --word-diff=plain --no-color
882749a0 TR	149	'
882749a0 TR	150
5094d158	151	test_expect_success '--word-diff=plain --color' '
0253e126	152	cat >expect <<-EOF &&
5094d158	153	<BOLD>diff --git a/pre b/post<RESET>
0253e126	154	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	155	<BOLD>--- a/pre<RESET>
	156	<BOLD>+++ b/post<RESET>
	157	<CYAN>@@ -1,3 +1,7 @@<RESET>
	158	<RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>
882749a0	159
5094d158	160	a = b + c<RESET>
882749a0	161
5094d158	162	<GREEN>{+aa = a+}<RESET>
882749a0	163
5094d158 JN	164	<GREEN>{+aeff = aeff * ( aaa )+}<RESET>
5094d158 JN	165	EOF
882749a0	166	word_diff --word-diff=plain --color
882749a0 TR	167	'
882749a0 TR	168
a4ca1465	169	test_expect_success 'word diff without context' '
0253e126	170	cat >expect <<-EOF &&
5094d158	171	<BOLD>diff --git a/pre b/post<RESET>
0253e126	172	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	173	<BOLD>--- a/pre<RESET>
	174	<BOLD>+++ b/post<RESET>
	175	<CYAN>@@ -1 +1 @@<RESET>
	176	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	177	<CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
	178
	179	<GREEN>aa = a<RESET>
	180
	181	<GREEN>aeff = aeff * ( aaa )<RESET>
	182	EOF
168eff3c	183	word_diff --color-words --unified=0
168eff3c MH	184	'
168eff3c MH	185
2b6a5417	186	test_expect_success 'word diff with a regular expression' '
5094d158	187	cp expect.letter-runs-are-words expect &&
2b6a5417	188	word_diff --color-words="[a-z]+"
2b6a5417 JS	189	'
2b6a5417 JS	190
0324e8fc PW	191	test_expect_success 'word diff with zero length matches' '
	192	cp expect.letter-runs-are-words expect &&
	193	word_diff --color-words="[a-z${LF}]*"
	194	'
	195
5094d158	196	test_expect_success 'set up a diff driver' '
ae3b970a	197	git config diff.testdriver.wordRegex "[^[:space:]]" &&
5094d158 JN	198	cat <<-\EOF >.gitattributes
	199	pre diff=testdriver
	200	post diff=testdriver
	201	EOF
80c49c3d TR	202	'
80c49c3d TR	203
98a4d87b	204	test_expect_success 'option overrides .gitattributes' '
5094d158	205	cp expect.letter-runs-are-words expect &&
80c49c3d	206	word_diff --color-words="[a-z]+"
80c49c3d TR	207	'
80c49c3d TR	208
98a4d87b	209	test_expect_success 'use regex supplied by driver' '
5094d158	210	cp expect.non-whitespace-is-word expect &&
80c49c3d	211	word_diff --color-words
80c49c3d TR	212	'
80c49c3d TR	213
5094d158	214	test_expect_success 'set up diff.wordRegex option' '
ae3b970a	215	git config diff.wordRegex "[[:alnum:]]+"
98a4d87b BSSJ	216	'
98a4d87b BSSJ	217
98a4d87b	218	test_expect_success 'command-line overrides config' '
5094d158	219	cp expect.letter-runs-are-words expect &&
98a4d87b BSSJ	220	word_diff --color-words="[a-z]+"
	221	'
	222
5094d158	223	test_expect_success 'command-line overrides config: --word-diff-regex' '
0253e126	224	cat >expect <<-EOF &&
5094d158	225	<BOLD>diff --git a/pre b/post<RESET>
0253e126	226	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	227	<BOLD>--- a/pre<RESET>
	228	<BOLD>+++ b/post<RESET>
	229	<CYAN>@@ -1,3 +1,7 @@<RESET>
	230	h(4),<GREEN>{+hh+}<RESET>[44]
882749a0	231
5094d158	232	a = b + c<RESET>
882749a0	233
5094d158	234	<GREEN>{+aa = a+}<RESET>
882749a0	235
5094d158 JN	236	<GREEN>{+aeff = aeff * ( aaa+}<RESET> )
5094d158 JN	237	EOF
882749a0 TR	238	word_diff --color --word-diff-regex="[a-z]+"
	239	'
	240
98a4d87b	241	test_expect_success '.gitattributes override config' '
5094d158	242	cp expect.non-whitespace-is-word expect &&
98a4d87b BSSJ	243	word_diff --color-words
	244	'
	245
5094d158	246	test_expect_success 'setup: remove diff driver regex' '
ff73aa40	247	test_unconfig diff.testdriver.wordRegex
98a4d87b BSSJ	248	'
98a4d87b BSSJ	249
5094d158	250	test_expect_success 'use configured regex' '
0253e126	251	cat >expect <<-EOF &&
5094d158	252	<BOLD>diff --git a/pre b/post<RESET>
0253e126	253	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	254	<BOLD>--- a/pre<RESET>
	255	<BOLD>+++ b/post<RESET>
	256	<CYAN>@@ -1,3 +1,7 @@<RESET>
	257	h(4),<GREEN>hh[44<RESET>]
98a4d87b	258
5094d158	259	a = b + c<RESET>
98a4d87b	260
5094d158	261	<GREEN>aa = a<RESET>
98a4d87b	262
5094d158 JN	263	<GREEN>aeff = aeff * ( aaa<RESET> )
5094d158 JN	264	EOF
98a4d87b BSSJ	265	word_diff --color-words
	266	'
	267
2b6a5417	268	test_expect_success 'test parsing words for newline' '
5094d158 JN	269	echo "aaa (aaa)" >pre &&
5094d158 JN	270	echo "aaa (aaa) aaa" >post &&
0253e126	271	pre=$(git rev-parse --short $(git hash-object pre)) &&
	272	post=$(git rev-parse --short $(git hash-object post)) &&
	273	cat >expect <<-EOF &&
5094d158	274	<BOLD>diff --git a/pre b/post<RESET>
0253e126	275	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	276	<BOLD>--- a/pre<RESET>
	277	<BOLD>+++ b/post<RESET>
	278	<CYAN>@@ -1 +1 @@<RESET>
	279	aaa (aaa) <GREEN>aaa<RESET>
	280	EOF
2b6a5417	281	word_diff --color-words="a+"
2b6a5417 JS	282	'
2b6a5417 JS	283
2b6a5417	284	test_expect_success 'test when words are only removed at the end' '
5094d158 JN	285	echo "(:" >pre &&
5094d158 JN	286	echo "(" >post &&
0253e126	287	pre=$(git rev-parse --short $(git hash-object pre)) &&
	288	post=$(git rev-parse --short $(git hash-object post)) &&
	289	cat >expect <<-EOF &&
5094d158	290	<BOLD>diff --git a/pre b/post<RESET>
0253e126	291	<BOLD>index $pre..$post 100644<RESET>
5094d158 JN	292	<BOLD>--- a/pre<RESET>
	293	<BOLD>+++ b/post<RESET>
	294	<CYAN>@@ -1 +1 @@<RESET>
	295	(<RED>:<RESET>
	296	EOF
2b6a5417	297	word_diff --color-words=.
2b6a5417 JS	298	'
2b6a5417 JS	299
882749a0	300	test_expect_success '--word-diff=none' '
5094d158 JN	301	echo "(:" >pre &&
5094d158 JN	302	echo "(" >post &&
0253e126	303	pre=$(git rev-parse --short $(git hash-object pre)) &&
	304	post=$(git rev-parse --short $(git hash-object post)) &&
	305	cat >expect <<-EOF &&
5094d158	306	diff --git a/pre b/post
0253e126	307	index $pre..$post 100644
5094d158 JN	308	--- a/pre
	309	+++ b/post
	310	@@ -1 +1 @@
	311	-(:
	312	+(
	313	EOF
882749a0	314	word_diff --word-diff=plain --word-diff=none
882749a0 TR	315	'
882749a0 TR	316
62d39359 JS	317	test_expect_success 'unset default driver' '
	318	test_unconfig diff.wordregex
	319	'
	320
e90d065e	321	test_language_driver ada
5094d158	322	test_language_driver bibtex
ea8a71b4	323	test_language_driver bash
5094d158 JN	324	test_language_driver cpp
5094d158 JN	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