test_expect_success 'another test, without options' 'test_cmp expect out'
cat << EOF > expect
-diff --git a/x b/x
-index d99af23..8b32fb5 100644
EOF
git diff -w > out
test_expect_success 'another test, with -w' 'test_cmp expect out'
test_expect_success 'check spaces as indentation (indent-with-non-tab: off)' '
- git config core.whitespace "-indent-with-non-tab"
+ git config core.whitespace "-indent-with-non-tab" &&
echo " foo ();" > x &&
git diff --check
'
+test_expect_success 'check tabs as indentation (tab-in-indent: off)' '
+
+ git config core.whitespace "-tab-in-indent" &&
+ echo " foo ();" > x &&
+ git diff --check
+
+'
+
+test_expect_success 'check tabs as indentation (tab-in-indent: on)' '
+
+ git config core.whitespace "tab-in-indent" &&
+ echo " foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tabs and spaces as indentation (tab-in-indent: on)' '
+
+ git config core.whitespace "tab-in-indent" &&
+ echo " foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tab-in-indent and indent-with-non-tab conflict' '
+
+ git config core.whitespace "tab-in-indent,indent-with-non-tab" &&
+ echo "foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tab-in-indent excluded from wildcard whitespace attribute' '
+
+ git config --unset core.whitespace &&
+ echo "x whitespace" > .gitattributes &&
+ echo " foo ();" > x &&
+ git diff --check &&
+ rm -f .gitattributes
+
+'
+
test_expect_success 'line numbers in --check output are correct' '
echo "" > x &&
git diff --check
'
+cat <<EOF >expect
+EOF
+test_expect_success 'whitespace-only changes not reported' '
+ git reset --hard &&
+ echo >x "hello world" &&
+ git add x &&
+ git commit -m "hello 1" &&
+ echo >x "hello world" &&
+ git diff -b >actual &&
+ test_cmp expect actual
+'
+
+cat <<EOF >expect
+diff --git a/x b/z
+similarity index NUM%
+rename from x
+rename to z
+index 380c32a..a97b785 100644
+EOF
+test_expect_success 'whitespace-only changes reported across renames' '
+ git reset --hard &&
+ for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
+ git add x &&
+ git commit -m "base" &&
+ sed -e "5s/^/ /" x >z &&
+ git rm x &&
+ git add z &&
+ git diff -w -M --cached |
+ sed -e "/^similarity index /s/[0-9][0-9]*/NUM/" >actual &&
+ test_cmp expect actual
+'
+
+cat >expected <<\EOF
+diff --git a/empty b/void
+similarity index 100%
+rename from empty
+rename to void
+EOF
+
+test_expect_success 'rename empty' '
+ git reset --hard &&
+ >empty &&
+ git add empty &&
+ git commit -m empty &&
+ git mv empty void &&
+ git diff -w --cached -M >current &&
+ test_cmp expected current
+'
+
test_expect_success 'combined diff with autocrlf conversion' '
git reset --hard &&