#!/bin/sh
test_description='diff whitespace error detection'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success setup '
git config diff.color.whitespace "blue reverse" &&
>F &&
git add F &&
echo " Eight SP indent" >>F &&
echo " HT and SP indent" >>F &&
echo "With trailing SP " >>F &&
echo "Carriage ReturnQ" | tr Q "\015" >>F &&
echo "No problem" >>F &&
echo >>F
'
blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
printf "\033[%s" "$blue_grep" >check-grep
if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
then
grep_a=grep
elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
then
grep_a='grep -a'
else
grep_a=grep ;# expected to fail...
fi
rm -f check-grep
prepare_output () {
git diff --color >output
$grep_a "$blue_grep" output >error
$grep_a -v "$blue_grep" output >normal
return 0
}
test_expect_success default '
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'default (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace" >.gitattributes &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'default, tabwidth=10 (attribute)' '
git config core.whitespace "tabwidth=10" &&
echo "F whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'no check (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F -whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'no check, tabwidth=10 (attribute), must be irrelevant' '
git config core.whitespace "tabwidth=10" &&
echo "F -whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -trail' '
rm -f .gitattributes &&
git config core.whitespace -trail &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -trail (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=-trail" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -space' '
rm -f .gitattributes &&
git config core.whitespace -space &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -space (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=-space" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only' '
rm -f .gitattributes &&
git config core.whitespace indent,-trailing,-space &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=indent,-trailing,-space" >.gitattributes &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only, tabwidth=10' '
rm -f .gitattributes &&
git config core.whitespace indent,tabwidth=10,-trailing,-space &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only, tabwidth=10 (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=indent,-trailing,-space,tabwidth=10" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with cr-at-eol' '
rm -f .gitattributes &&
git config core.whitespace cr-at-eol &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with cr-at-eol (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=trailing,cr-at-eol" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'trailing empty lines (1)' '
rm -f .gitattributes &&
test_must_fail git diff --check >output &&
grep "new blank line at" output &&
grep "trailing whitespace" output
'
test_expect_success 'trailing empty lines (2)' '
echo "F -whitespace" >.gitattributes &&
git diff --check >output &&
test_must_be_empty output
'
test_expect_success 'checkdiff shows correct line number for trailing blank lines' '
printf "a\nb\n" > G &&
git add G &&
printf "x\nx\nx\na\nb\nc\n\n" > G &&
[ "$(git diff --check -- G)" = "G:7: new blank line at EOF." ]
'
test_expect_success 'do not color trailing cr in context' '
test_might_fail git config --unset core.whitespace &&
rm -f .gitattributes &&
echo AAAQ | tr Q "\015" >G &&
git add G &&
echo BBBQ | tr Q "\015" >>G &&
git diff --color G | tr "\015" Q >output &&
grep "BBB.*${blue_grep}Q" output &&
grep "AAA.*\[mQ" output
'
test_expect_success 'color new trailing blank lines' '
test_write_lines a b "" "" >x &&
git add x &&
test_write_lines a "" "" "" c "" "" "" "" >x &&
git diff --color x >output &&
cnt=$($grep_a "${blue_grep}" output | wc -l) &&
test $cnt = 2
'
test_done
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