1 files changed, 92 insertions, 0 deletions
diff --git a/t/t4126-apply-empty.sh b/t/t4126-apply-empty.sh
new file mode 100755
index 0000000000..eff783f8d6
--- /dev/null
+++ b/t/t4126-apply-empty.sh
@@ -0,0 +1,92 @@
+#!/bin/sh
+
+test_description='apply empty'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	>empty &&
+	git add empty &&
+	test_tick &&
+	git commit -m initial &&
+	git commit --allow-empty -m "empty commit" &&
+	git format-patch --always HEAD~ >empty.patch &&
+	test_write_lines a b c d e >empty &&
+	cat empty >expect &&
+	git diff |
+	sed -e "/^diff --git/d" \
+	    -e "/^index /d" \
+	    -e "s|a/empty|empty.orig|" \
+	    -e "s|b/empty|empty|" >patch0 &&
+	sed -e "s|empty|missing|" patch0 >patch1 &&
+	>empty &&
+	git update-index --refresh
+'
+
+test_expect_success 'apply empty' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply patch0 &&
+	test_cmp expect empty
+'
+
+test_expect_success 'apply empty patch fails' '
+	test_when_finished "git reset --hard" &&
+	test_must_fail git apply empty.patch &&
+	test_must_fail git apply - </dev/null
+'
+
+test_expect_success 'apply with --allow-empty succeeds' '
+	test_when_finished "git reset --hard" &&
+	git apply --allow-empty empty.patch &&
+	git apply --allow-empty - </dev/null
+'
+
+test_expect_success 'apply --index empty' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply --index patch0 &&
+	test_cmp expect empty &&
+	git diff --exit-code
+'
+
+test_expect_success 'apply create' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply patch1 &&
+	test_cmp expect missing
+'
+
+test_expect_success 'apply --index create' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply --index patch1 &&
+	test_cmp expect missing &&
+	git diff --exit-code
+'
+
+test_expect_success !MINGW 'apply with no-contents and a funny pathname' '
+	test_when_finished "rm -fr \"funny \"; git reset --hard" &&
+
+	mkdir "funny " &&
+	>"funny /empty" &&
+	git add "funny /empty" &&
+	git diff HEAD -- "funny /" >sample.patch &&
+	git diff -R HEAD -- "funny /" >elpmas.patch &&
+
+	git reset --hard &&
+
+	git apply --stat --check --apply sample.patch &&
+	test_must_be_empty "funny /empty" &&
+
+	git apply --stat --check --apply elpmas.patch &&
+	test_path_is_missing "funny /empty" &&
+
+	git apply -R --stat --check --apply elpmas.patch &&
+	test_must_be_empty "funny /empty" &&
+
+	git apply -R --stat --check --apply sample.patch &&
+	test_path_is_missing "funny /empty"
+'
+
+test_done