1 files changed, 45 insertions, 0 deletions
diff --git a/t/t4135/make-patches b/t/t4135/make-patches
new file mode 100755
index 000000000000..f5f45ddd099e
--- /dev/null
+++ b/t/t4135/make-patches
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+do_filename() {
+	desc=$1
+	postimage=$2
+
+	rm -fr file-creation &&
+	git init file-creation &&
+	(
+		cd file-creation &&
+		git commit --allow-empty -m init &&
+		echo postimage >"$postimage" &&
+		git add -N "$postimage" &&
+		git diff HEAD >"../git-$desc.diff"
+	) &&
+
+	rm -fr trad-modification &&
+	mkdir trad-modification &&
+	(
+		cd trad-modification &&
+		echo preimage >"$postimage.orig" &&
+		echo postimage >"$postimage" &&
+		! diff -u "$postimage.orig" "$postimage" >"../diff-$desc.diff"
+	) &&
+
+	rm -fr trad-creation &&
+	mkdir trad-creation &&
+	(
+		cd trad-creation &&
+		mkdir a b &&
+		echo postimage >"b/$postimage" &&
+		! diff -pruN a b >"../add-$desc.diff"
+	)
+}
+
+do_filename plain postimage.txt &&
+do_filename 'with spaces' 'post image.txt' &&
+do_filename 'with tab' 'post	image.txt' &&
+do_filename 'with backslash' 'post\image.txt' &&
+do_filename 'with quote' '"postimage".txt' &&
+expand add-plain.diff >damaged.diff ||
+{
+	echo >&2 Failed. &&
+	exit 1
+}