. ./test-lib.sh
-test_expect_success setup '
+cat >pre.simple <<-\EOF
+ h(4)
- git config diff.color.old red &&
- git config diff.color.new green &&
- git config diff.color.func magenta
+ a = b + c
+EOF
+cat >post.simple <<-\EOF
+ h(4),hh[44]
-'
+ a = b + c
-word_diff () {
- test_must_fail git diff --no-index "$@" pre post > output &&
- test_decode_color <output >output.decrypted &&
- test_cmp expect output.decrypted
-}
+ aa = a
-cat > pre <<\EOF
-h(4)
-
-a = b + c
+ aeff = aeff * ( aaa )
EOF
+cat >expect.letter-runs-are-words <<-\EOF
+ <BOLD>diff --git a/pre b/post<RESET>
+ <BOLD>index 330b04f..5ed8eff 100644<RESET>
+ <BOLD>--- a/pre<RESET>
+ <BOLD>+++ b/post<RESET>
+ <CYAN>@@ -1,3 +1,7 @@<RESET>
+ h(4),<GREEN>hh<RESET>[44]
-cat > post <<\EOF
-h(4),hh[44]
-
-a = b + c
+ a = b + c<RESET>
-aa = a
+ <GREEN>aa = a<RESET>
-aeff = aeff * ( aaa )
+ <GREEN>aeff = aeff * ( aaa<RESET> )
EOF
+cat >expect.non-whitespace-is-word <<-\EOF
+ <BOLD>diff --git a/pre b/post<RESET>
+ <BOLD>index 330b04f..5ed8eff 100644<RESET>
+ <BOLD>--- a/pre<RESET>
+ <BOLD>+++ b/post<RESET>
+ <CYAN>@@ -1,3 +1,7 @@<RESET>
+ h(4)<GREEN>,hh[44]<RESET>
-cat > expect <<\EOF
-<BOLD>diff --git a/pre b/post<RESET>
-<BOLD>index 330b04f..5ed8eff 100644<RESET>
-<BOLD>--- a/pre<RESET>
-<BOLD>+++ b/post<RESET>
-<CYAN>@@ -1,3 +1,7 @@<RESET>
-<RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
-
-a = b + c<RESET>
+ a = b + c<RESET>
-<GREEN>aa = a<RESET>
+ <GREEN>aa = a<RESET>
-<GREEN>aeff = aeff * ( aaa )<RESET>
+ <GREEN>aeff = aeff * ( aaa )<RESET>
EOF
-test_expect_success 'word diff with runs of whitespace' '
+word_diff () {
+ test_must_fail git diff --no-index "$@" pre post >output &&
+ test_decode_color <output >output.decrypted &&
+ test_cmp expect output.decrypted
+}
- word_diff --color-words
+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='"$lang"'" >.gitattributes &&
+ word_diff --color-words
+ '
+}
+test_expect_success setup '
+ git config diff.color.old red &&
+ git config diff.color.new green &&
+ git config diff.color.func magenta
'
-test_expect_success '--word-diff=color' '
-
- word_diff --word-diff=color
-
+test_expect_success 'set up pre and post with runs of whitespace' '
+ cp pre.simple pre &&
+ cp post.simple post
'
-test_expect_success '--color --word-diff=color' '
-
+test_expect_success 'word diff with runs of whitespace' '
+ cat >expect <<-\EOF &&
+ <BOLD>diff --git a/pre b/post<RESET>
+ <BOLD>index 330b04f..5ed8eff 100644<RESET>
+ <BOLD>--- a/pre<RESET>
+ <BOLD>+++ b/post<RESET>
+ <CYAN>@@ -1,3 +1,7 @@<RESET>
+ <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
+
+ a = b + c<RESET>
+
+ <GREEN>aa = a<RESET>
+
+ <GREEN>aeff = aeff * ( aaa )<RESET>
+ EOF
+ word_diff --color-words &&
+ word_diff --word-diff=color &&
word_diff --color --word-diff=color
-
'
-sed 's/#.*$//' > 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
-
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
-
'
-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
-
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]+}
- word_diff --word-diff=plain
-
-'
+ a = b + c
-test_expect_success '--word-diff=plain --no-color' '
+ {+aa = a+}
+ {+aeff = aeff * ( aaa )+}
+ EOF
+ word_diff --word-diff=plain &&
word_diff --word-diff=plain --no-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>
+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>
-<GREEN>{+aeff = aeff * ( aaa )+}<RESET>
-EOF
+ a = b + c<RESET>
-test_expect_success '--word-diff=plain --color' '
+ <GREEN>{+aa = a+}<RESET>
+ <GREEN>{+aeff = aeff * ( aaa )+}<RESET>
+ EOF
word_diff --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 +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
-
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
-
'
-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
-cp expect expect.letter-runs-are-words
-
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 a diff driver' '
+test_expect_success 'set up a diff driver' '
git config diff.testdriver.wordRegex "[^[:space:]]" &&
- cat <<EOF > .gitattributes
-pre diff=testdriver
-post diff=testdriver
-EOF
+ 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]+"
-
'
-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
-cp expect expect.non-whitespace-is-word
-
test_expect_success 'use regex supplied by driver' '
-
+ cp expect.non-whitespace-is-word expect &&
word_diff --color-words
-
'
-test_expect_success 'set diff.wordRegex option' '
+test_expect_success 'set up diff.wordRegex option' '
git config diff.wordRegex "[[:alnum:]]+"
'
-cp expect.letter-runs-are-words expect
-
test_expect_success 'command-line overrides config' '
+ cp expect.letter-runs-are-words expect &&
word_diff --color-words="[a-z]+"
'
-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>
+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]
-<GREEN>{+aa = a+}<RESET>
+ a = b + c<RESET>
-<GREEN>{+aeff = aeff * ( aaa+}<RESET> )
-EOF
+ <GREEN>{+aa = a+}<RESET>
-test_expect_success 'command-line overrides config: --word-diff-regex' '
+ <GREEN>{+aeff = aeff * ( aaa+}<RESET> )
+ EOF
word_diff --color --word-diff-regex="[a-z]+"
'
-cp expect.non-whitespace-is-word expect
-
test_expect_success '.gitattributes override config' '
+ cp expect.non-whitespace-is-word expect &&
word_diff --color-words
'
-test_expect_success 'remove diff driver regex' '
- git config --unset diff.testdriver.wordRegex
+test_expect_success 'setup: remove diff driver regex' '
+ test_might_fail git config --unset diff.testdriver.wordRegex
'
-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>
+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>]
-<GREEN>aa = a<RESET>
+ a = b + c<RESET>
-<GREEN>aeff = aeff * ( aaa<RESET> )
-EOF
+ <GREEN>aa = a<RESET>
-test_expect_success 'use configured regex' '
+ <GREEN>aeff = aeff * ( aaa<RESET> )
+ EOF
word_diff --color-words
'
-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
-
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+"
-
-
'
-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
-
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=.
-
'
-cat > expect <<\EOF
-diff --git a/pre b/post
-index 289cb9d..2d06f37 100644
---- a/pre
-+++ b/post
-@@ -1 +1 @@
--(:
-+(
-EOF
-
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_language_driver bibtex
+test_language_driver cpp
+test_language_driver csharp
+test_language_driver fortran
+test_language_driver html
+test_language_driver java
+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_when_finished "git config --unset diff.suppress-blank-empty" &&
+ git config diff.suppress-blank-empty true &&
+ word_diff --word-diff=plain
'
test_done