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git/t/t4018-diff-funcname.sh
Ash Holland 09dad9256a userdiff: support Markdown
It's typical to find Markdown documentation alongside source code, and
having better context for documentation changes is useful; see also
commit 69f9c87d4 (userdiff: add support for Fountain documents,
2015-07-21).

The pattern is based on the CommonMark specification 0.29, section 4.2
<https://spec.commonmark.org/> but doesn't match empty headings, as
seeing them in a hunk header is unlikely to be useful.

Only ATX headings are supported, as detecting setext headings would
require printing the line before a pattern matches, or matching a
multiline pattern. The word-diff pattern is the same as the pattern for
HTML, because many Markdown parsers accept inline HTML.

Signed-off-by: Ash Holland <ash@sorrel.sh>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-02 18:04:12 -07:00

116 lines
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#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test custom diff function name patterns'
. ./test-lib.sh
test_expect_success 'setup' '
# a non-trivial custom pattern
git config diff.custom1.funcname "!static
!String
[^ ].*s.*" &&
# a custom pattern which matches to end of line
git config diff.custom2.funcname "......Beer\$" &&
# alternation in pattern
git config diff.custom3.funcname "Beer$" &&
git config diff.custom3.xfuncname "^[ ]*((public|static).*)$" &&
# for regexp compilation tests
echo A >A.java &&
echo B >B.java
'
diffpatterns="
ada
bibtex
cpp
csharp
css
dts
elixir
fortran
fountain
golang
html
java
markdown
matlab
objc
pascal
perl
php
python
ruby
rust
tex
custom1
custom2
custom3
"
for p in $diffpatterns
do
test_expect_success "builtin $p pattern compiles" '
echo "*.java diff=$p" >.gitattributes &&
test_expect_code 1 git diff --no-index \
A.java B.java 2>msg &&
test_i18ngrep ! fatal msg &&
test_i18ngrep ! error msg
'
test_expect_success "builtin $p wordRegex pattern compiles" '
echo "*.java diff=$p" >.gitattributes &&
test_expect_code 1 git diff --no-index --word-diff \
A.java B.java 2>msg &&
test_i18ngrep ! fatal msg &&
test_i18ngrep ! error msg
'
done
test_expect_success 'last regexp must not be negated' '
echo "*.java diff=java" >.gitattributes &&
test_config diff.java.funcname "!static" &&
test_expect_code 128 git diff --no-index A.java B.java 2>msg &&
test_i18ngrep ": Last expression must not be negated:" msg
'
test_expect_success 'setup hunk header tests' '
for i in $diffpatterns
do
echo "$i-* diff=$i"
done > .gitattributes &&
# add all test files to the index
(
cd "$TEST_DIRECTORY"/t4018 &&
git --git-dir="$TRASH_DIRECTORY/.git" add .
) &&
# place modified files in the worktree
for i in $(git ls-files)
do
sed -e "s/ChangeMe/IWasChanged/" <"$TEST_DIRECTORY/t4018/$i" >"$i" || return 1
done
'
# check each individual file
for i in $(git ls-files)
do
if grep broken "$i" >/dev/null 2>&1
then
result=failure
else
result=success
fi
test_expect_$result "hunk header: $i" "
git diff -U1 $i >actual &&
grep '@@ .* @@.*RIGHT' actual
"
done
test_done