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#!/bin/sh
test_description='diff hunk fusing'
. ./test-lib.sh
f() {
echo $1
i=1
while test $i -le $2
do
echo $i
i=$(expr $i + 1)
done
echo $3
}
t() {
use_config=
git config --unset diff.interHunkContext
case $# in
4) hunks=$4; cmd="diff -U$3";;
5) hunks=$5; cmd="diff -U$3 --inter-hunk-context=$4";;
6) hunks=$5; cmd="diff -U$3"; git config diff.interHunkContext $4; use_config="(diff.interHunkContext=$4) ";;
esac
label="$use_config$cmd, $1 common $2"
file=f$1
expected=expected.$file.$3.$hunks
if ! test -f $file
then
f A $1 B >$file
git add $file
git commit -q -m. $file
f X $1 Y >$file
fi
test_expect_success "$label: count hunks ($hunks)" "
test $(git $cmd $file | grep '^@@ ' | wc -l) = $hunks
"
test -f $expected &&
test_expect_success "$label: check output" "
git $cmd $file | grep -v '^index ' >actual &&
test_cmp $expected actual
"
}
cat <<EOF >expected.f1.0.1 || exit 1
diff --git a/f1 b/f1
--- a/f1
+++ b/f1
@@ -1,3 +1,3 @@
-A
+X
1
-B
+Y
EOF
cat <<EOF >expected.f1.0.2 || exit 1
diff --git a/f1 b/f1
--- a/f1
+++ b/f1
@@ -1 +1 @@
-A
+X
@@ -3 +3 @@ A
-B
+Y
EOF
# common lines ctx intrctx hunks
t 1 line 0 2
t 1 line 0 0 2
t 1 line 0 1 1
t 1 line 0 2 1
t 1 line 1 1
t 2 lines 0 2
t 2 lines 0 0 2
t 2 lines 0 1 2
t 2 lines 0 2 1
t 2 lines 1 1
t 3 lines 1 2
t 3 lines 1 0 2
t 3 lines 1 1 1
t 3 lines 1 2 1
t 9 lines 3 2
t 9 lines 3 2 2
t 9 lines 3 3 1
# use diff.interHunkContext?
t 1 line 0 0 2 config
t 1 line 0 1 1 config
t 1 line 0 2 1 config
t 9 lines 3 3 1 config
t 2 lines 0 0 2 config
t 2 lines 0 1 2 config
t 2 lines 0 2 1 config
t 3 lines 1 0 2 config
t 3 lines 1 1 1 config
t 3 lines 1 2 1 config
t 9 lines 3 2 2 config
t 9 lines 3 3 1 config
test_expect_success 'diff.interHunkContext invalid' '
git config diff.interHunkContext asdf &&
test_must_fail git diff &&
git config diff.interHunkContext -1 &&
test_must_fail git diff
'
test_done