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

#!/bin/sh

test_description='word diff colors'

. ./test-lib.sh
. "$TEST_DIRECTORY"/diff-lib.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
cat >expect.letter-runs-are-words <<-\EOF
	<BOLD>diff --git a/pre b/post<RESET>
	<BOLD>index 330b04f..5ed8eff 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 330b04f..5ed8eff 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 () {
	test_must_fail git diff --no-index "$@" pre post >output &&
	test_decode_color <output >output.decrypted &&
	test_cmp expect 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 330b04f..5ed8eff 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 330b04f..5ed8eff 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 330b04f..5ed8eff 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 330b04f..5ed8eff 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 330b04f..5ed8eff 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 '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 330b04f..5ed8eff 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 330b04f..5ed8eff 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 &&
	cat >expect <<-\EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index c29453b..be22f37 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 &&
	cat >expect <<-\EOF &&
		<BOLD>diff --git a/pre b/post<RESET>
		<BOLD>index 289cb9d..2d06f37 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 &&
	cat >expect <<-\EOF &&
		diff --git a/pre b/post
		index 289cb9d..2d06f37 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 fortran
test_language_driver html
test_language_driver java
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 tex

test_expect_success 'word-diff with diff.sbe' '
	cat >expect <<-\EOF &&
	diff --git a/pre b/post
	index a1a53b5..bc8fe6d 100644
	--- a/pre
	+++ b/post
	@@ -1,3 +1,3 @@
	a

	[-b-]{+c+}
	EOF
	cat >pre <<-\EOF &&
	a

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

	c
	EOF
	test_config diff.suppress-blank-empty true &&
	word_diff --word-diff=plain
'

test_expect_success 'word-diff with no newline at EOF' '
	cat >expect <<-\EOF &&
	diff --git a/pre b/post
	index 7bf316e..3dd0303 100644
	--- a/pre
	+++ b/post
	@@ -1 +1 @@
	a a [-a-]{+ab+} a a
	EOF
	printf "%s" "a a a a a" >pre &&
	printf "%s" "a a ab a a" >post &&
	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
62d39359	6	. "$TEST_DIRECTORY"/diff-lib.sh
2e5d2003	7
5094d158 JN	8	cat >pre.simple <<-\EOF
5094d158 JN	9	h(4)
2e5d2003	10
5094d158 JN	11	a = b + c
	12	EOF
	13	cat >post.simple <<-\EOF
	14	h(4),hh[44]
2e5d2003	15
5094d158	16	a = b + c
2e5d2003	17
5094d158	18	aa = a
2e5d2003	19
5094d158	20	aeff = aeff * ( aaa )
2e5d2003	21	EOF
5094d158 JN	22	cat >expect.letter-runs-are-words <<-\EOF
	23	<BOLD>diff --git a/pre b/post<RESET>
	24	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	25	<BOLD>--- a/pre<RESET>
	26	<BOLD>+++ b/post<RESET>
	27	<CYAN>@@ -1,3 +1,7 @@<RESET>
	28	h(4),<GREEN>hh<RESET>[44]
2e5d2003	29
5094d158	30	a = b + c<RESET>
2e5d2003	31
5094d158	32	<GREEN>aa = a<RESET>
2e5d2003	33
5094d158	34	<GREEN>aeff = aeff * ( aaa<RESET> )
2e5d2003	35	EOF
5094d158 JN	36	cat >expect.non-whitespace-is-word <<-\EOF
	37	<BOLD>diff --git a/pre b/post<RESET>
	38	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	39	<BOLD>--- a/pre<RESET>
	40	<BOLD>+++ b/post<RESET>
	41	<CYAN>@@ -1,3 +1,7 @@<RESET>
	42	h(4)<GREEN>,hh[44]<RESET>
2e5d2003	43
5094d158	44	a = b + c<RESET>
2e5d2003	45
5094d158	46	<GREEN>aa = a<RESET>
2e5d2003	47
5094d158	48	<GREEN>aeff = aeff * ( aaa )<RESET>
2e5d2003 JS	49	EOF
2e5d2003 JS	50
5094d158 JN	51	word_diff () {
	52	test_must_fail git diff --no-index "$@" pre post >output &&
	53	test_decode_color <output >output.decrypted &&
	54	test_cmp expect output.decrypted
	55	}
2e5d2003	56
5094d158 JN	57	test_language_driver () {
	58	lang=$1
	59	test_expect_success "diff driver '$lang'" '
	60	cp "$TEST_DIRECTORY/t4034/'"$lang"'/pre" \
	61	"$TEST_DIRECTORY/t4034/'"$lang"'/post" \
	62	"$TEST_DIRECTORY/t4034/'"$lang"'/expect" . &&
	63	echo "* diff='"$lang"'" >.gitattributes &&
	64	word_diff --color-words
	65	'
	66	}
2e5d2003	67
5094d158 JN	68	test_expect_success setup '
	69	git config diff.color.old red &&
	70	git config diff.color.new green &&
	71	git config diff.color.func magenta
2e5d2003 JS	72	'
2e5d2003 JS	73
5094d158 JN	74	test_expect_success 'set up pre and post with runs of whitespace' '
	75	cp pre.simple pre &&
	76	cp post.simple post
882749a0 TR	77	'
882749a0 TR	78
5094d158 JN	79	test_expect_success 'word diff with runs of whitespace' '
	80	cat >expect <<-\EOF &&
	81	<BOLD>diff --git a/pre b/post<RESET>
	82	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	83	<BOLD>--- a/pre<RESET>
	84	<BOLD>+++ b/post<RESET>
	85	<CYAN>@@ -1,3 +1,7 @@<RESET>
	86	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	87
	88	a = b + c<RESET>
	89
	90	<GREEN>aa = a<RESET>
	91
	92	<GREEN>aeff = aeff * ( aaa )<RESET>
	93	EOF
	94	word_diff --color-words &&
	95	word_diff --word-diff=color &&
882749a0	96	word_diff --color --word-diff=color
882749a0 TR	97	'
882749a0 TR	98
882749a0	99	test_expect_success '--word-diff=porcelain' '
5094d158 JN	100	sed 's/#.*$//' >expect <<-\EOF &&
	101	diff --git a/pre b/post
	102	index 330b04f..5ed8eff 100644
	103	--- a/pre
	104	+++ b/post
	105	@@ -1,3 +1,7 @@
	106	-h(4)
	107	+h(4),hh[44]
	108	~
	109	# significant space
	110	~
	111	a = b + c
	112	~
	113	~
	114	+aa = a
	115	~
	116	~
	117	+aeff = aeff * ( aaa )
	118	~
	119	EOF
882749a0	120	word_diff --word-diff=porcelain
882749a0 TR	121	'
882749a0 TR	122
882749a0	123	test_expect_success '--word-diff=plain' '
5094d158 JN	124	cat >expect <<-\EOF &&
	125	diff --git a/pre b/post
	126	index 330b04f..5ed8eff 100644
	127	--- a/pre
	128	+++ b/post
	129	@@ -1,3 +1,7 @@
	130	[-h(4)-]{+h(4),hh[44]+}
882749a0	131
5094d158	132	a = b + c
882749a0	133
5094d158	134	{+aa = a+}
882749a0	135
5094d158 JN	136	{+aeff = aeff * ( aaa )+}
	137	EOF
	138	word_diff --word-diff=plain &&
882749a0	139	word_diff --word-diff=plain --no-color
882749a0 TR	140	'
882749a0 TR	141
5094d158 JN	142	test_expect_success '--word-diff=plain --color' '
	143	cat >expect <<-\EOF &&
	144	<BOLD>diff --git a/pre b/post<RESET>
	145	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	146	<BOLD>--- a/pre<RESET>
	147	<BOLD>+++ b/post<RESET>
	148	<CYAN>@@ -1,3 +1,7 @@<RESET>
	149	<RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>
882749a0	150
5094d158	151	a = b + c<RESET>
882749a0	152
5094d158	153	<GREEN>{+aa = a+}<RESET>
882749a0	154
5094d158 JN	155	<GREEN>{+aeff = aeff * ( aaa )+}<RESET>
5094d158 JN	156	EOF
882749a0	157	word_diff --word-diff=plain --color
882749a0 TR	158	'
882749a0 TR	159
a4ca1465	160	test_expect_success 'word diff without context' '
5094d158 JN	161	cat >expect <<-\EOF &&
	162	<BOLD>diff --git a/pre b/post<RESET>
	163	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	164	<BOLD>--- a/pre<RESET>
	165	<BOLD>+++ b/post<RESET>
	166	<CYAN>@@ -1 +1 @@<RESET>
	167	<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
	168	<CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
	169
	170	<GREEN>aa = a<RESET>
	171
	172	<GREEN>aeff = aeff * ( aaa )<RESET>
	173	EOF
168eff3c	174	word_diff --color-words --unified=0
168eff3c MH	175	'
168eff3c MH	176
2b6a5417	177	test_expect_success 'word diff with a regular expression' '
5094d158	178	cp expect.letter-runs-are-words expect &&
2b6a5417	179	word_diff --color-words="[a-z]+"
2b6a5417 JS	180	'
2b6a5417 JS	181
5094d158	182	test_expect_success 'set up a diff driver' '
ae3b970a	183	git config diff.testdriver.wordRegex "[^[:space:]]" &&
5094d158 JN	184	cat <<-\EOF >.gitattributes
	185	pre diff=testdriver
	186	post diff=testdriver
	187	EOF
80c49c3d TR	188	'
80c49c3d TR	189
98a4d87b	190	test_expect_success 'option overrides .gitattributes' '
5094d158	191	cp expect.letter-runs-are-words expect &&
80c49c3d	192	word_diff --color-words="[a-z]+"
80c49c3d TR	193	'
80c49c3d TR	194
98a4d87b	195	test_expect_success 'use regex supplied by driver' '
5094d158	196	cp expect.non-whitespace-is-word expect &&
80c49c3d	197	word_diff --color-words
80c49c3d TR	198	'
80c49c3d TR	199
5094d158	200	test_expect_success 'set up diff.wordRegex option' '
ae3b970a	201	git config diff.wordRegex "[[:alnum:]]+"
98a4d87b BSSJ	202	'
98a4d87b BSSJ	203
98a4d87b	204	test_expect_success 'command-line overrides config' '
5094d158	205	cp expect.letter-runs-are-words expect &&
98a4d87b BSSJ	206	word_diff --color-words="[a-z]+"
	207	'
	208
5094d158 JN	209	test_expect_success 'command-line overrides config: --word-diff-regex' '
	210	cat >expect <<-\EOF &&
	211	<BOLD>diff --git a/pre b/post<RESET>
	212	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	213	<BOLD>--- a/pre<RESET>
	214	<BOLD>+++ b/post<RESET>
	215	<CYAN>@@ -1,3 +1,7 @@<RESET>
	216	h(4),<GREEN>{+hh+}<RESET>[44]
882749a0	217
5094d158	218	a = b + c<RESET>
882749a0	219
5094d158	220	<GREEN>{+aa = a+}<RESET>
882749a0	221
5094d158 JN	222	<GREEN>{+aeff = aeff * ( aaa+}<RESET> )
5094d158 JN	223	EOF
882749a0 TR	224	word_diff --color --word-diff-regex="[a-z]+"
	225	'
	226
98a4d87b	227	test_expect_success '.gitattributes override config' '
5094d158	228	cp expect.non-whitespace-is-word expect &&
98a4d87b BSSJ	229	word_diff --color-words
	230	'
	231
5094d158	232	test_expect_success 'setup: remove diff driver regex' '
ff73aa40	233	test_unconfig diff.testdriver.wordRegex
98a4d87b BSSJ	234	'
98a4d87b BSSJ	235
5094d158 JN	236	test_expect_success 'use configured regex' '
	237	cat >expect <<-\EOF &&
	238	<BOLD>diff --git a/pre b/post<RESET>
	239	<BOLD>index 330b04f..5ed8eff 100644<RESET>
	240	<BOLD>--- a/pre<RESET>
	241	<BOLD>+++ b/post<RESET>
	242	<CYAN>@@ -1,3 +1,7 @@<RESET>
	243	h(4),<GREEN>hh[44<RESET>]
98a4d87b	244
5094d158	245	a = b + c<RESET>
98a4d87b	246
5094d158	247	<GREEN>aa = a<RESET>
98a4d87b	248
5094d158 JN	249	<GREEN>aeff = aeff * ( aaa<RESET> )
5094d158 JN	250	EOF
98a4d87b BSSJ	251	word_diff --color-words
	252	'
	253
2b6a5417	254	test_expect_success 'test parsing words for newline' '
5094d158 JN	255	echo "aaa (aaa)" >pre &&
	256	echo "aaa (aaa) aaa" >post &&
	257	cat >expect <<-\EOF &&
	258	<BOLD>diff --git a/pre b/post<RESET>
	259	<BOLD>index c29453b..be22f37 100644<RESET>
	260	<BOLD>--- a/pre<RESET>
	261	<BOLD>+++ b/post<RESET>
	262	<CYAN>@@ -1 +1 @@<RESET>
	263	aaa (aaa) <GREEN>aaa<RESET>
	264	EOF
2b6a5417	265	word_diff --color-words="a+"
2b6a5417 JS	266	'
2b6a5417 JS	267
2b6a5417	268	test_expect_success 'test when words are only removed at the end' '
5094d158 JN	269	echo "(:" >pre &&
	270	echo "(" >post &&
	271	cat >expect <<-\EOF &&
	272	<BOLD>diff --git a/pre b/post<RESET>
	273	<BOLD>index 289cb9d..2d06f37 100644<RESET>
	274	<BOLD>--- a/pre<RESET>
	275	<BOLD>+++ b/post<RESET>
	276	<CYAN>@@ -1 +1 @@<RESET>
	277	(<RED>:<RESET>
	278	EOF
2b6a5417	279	word_diff --color-words=.
2b6a5417 JS	280	'
2b6a5417 JS	281
882749a0	282	test_expect_success '--word-diff=none' '
5094d158 JN	283	echo "(:" >pre &&
	284	echo "(" >post &&
	285	cat >expect <<-\EOF &&
	286	diff --git a/pre b/post
	287	index 289cb9d..2d06f37 100644
	288	--- a/pre
	289	+++ b/post
	290	@@ -1 +1 @@
	291	-(:
	292	+(
	293	EOF
882749a0	294	word_diff --word-diff=plain --word-diff=none
882749a0 TR	295	'
882749a0 TR	296
62d39359 JS	297	test_expect_success 'unset default driver' '
	298	test_unconfig diff.wordregex
	299	'
	300
e90d065e	301	test_language_driver ada
5094d158 JN	302	test_language_driver bibtex
	303	test_language_driver cpp
	304	test_language_driver csharp
0719f3ee	305	test_language_driver css
5094d158 JN	306	test_language_driver fortran
	307	test_language_driver html
	308	test_language_driver java
53b10a14	309	test_language_driver matlab
5094d158 JN	310	test_language_driver objc
5094d158 JN	311	test_language_driver pascal
5269edf1	312	test_language_driver perl
5094d158 JN	313	test_language_driver php
	314	test_language_driver python
	315	test_language_driver ruby
	316	test_language_driver tex
8d96e728	317
42536dd9 JM	318	test_expect_success 'word-diff with diff.sbe' '
	319	cat >expect <<-\EOF &&
	320	diff --git a/pre b/post
	321	index a1a53b5..bc8fe6d 100644
	322	--- a/pre
	323	+++ b/post
	324	@@ -1,3 +1,3 @@
	325	a
	326
	327	[-b-]{+c+}
	328	EOF
	329	cat >pre <<-\EOF &&
	330	a
	331
	332	b
	333	EOF
	334	cat >post <<-\EOF &&
	335	a
	336
	337	c
	338	EOF
ff73aa40	339	test_config diff.suppress-blank-empty true &&
42536dd9 JM	340	word_diff --word-diff=plain
	341	'
	342
c7c2bc0a TR	343	test_expect_success 'word-diff with no newline at EOF' '
	344	cat >expect <<-\EOF &&
	345	diff --git a/pre b/post
	346	index 7bf316e..3dd0303 100644
	347	--- a/pre
	348	+++ b/post
	349	@@ -1 +1 @@
	350	a a [-a-]{+ab+} a a
	351	EOF
	352	printf "%s" "a a a a a" >pre &&
	353	printf "%s" "a a ab a a" >post &&
	354	word_diff --word-diff=plain
	355	'
	356
62d39359 JS	357	test_expect_success 'setup history with two files' '
	358	echo "a b; c" >a.tex &&
	359	echo "a b; c" >z.txt &&
	360	git add a.tex z.txt &&
	361	git commit -minitial &&
	362
	363	# modify both
	364	echo "a bx; c" >a.tex &&
	365	echo "a bx; c" >z.txt &&
	366	git commit -mmodified -a
	367	'
	368
6440d341	369	test_expect_success 'wordRegex for the first file does not apply to the second' '
62d39359	370	echo "*.tex diff=tex" >.gitattributes &&
ff73aa40	371	test_config diff.tex.wordRegex "[a-z]+\|." &&
62d39359 JS	372	cat >expect <<-\EOF &&
	373	diff --git a/a.tex b/a.tex
	374	--- a/a.tex
	375	+++ b/a.tex
	376	@@ -1 +1 @@
	377	a [-b-]{+bx+}; c
	378	diff --git a/z.txt b/z.txt
	379	--- a/z.txt
	380	+++ b/z.txt
	381	@@ -1 +1 @@
	382	a [-b;-]{+bx;+} c
	383	EOF
	384	git diff --word-diff HEAD~ >actual &&
	385	compare_diff_patch expect actual
	386	'
	387
2e5d2003	388	test_done