X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=t%2Ft4031-diff-rewrite-binary.sh;h=a894c6062271c53b688830a3230d1c78fb561d70;hb=8851f4800c15fe91b6a53e9e284787b983226c41;hp=e16c35510340228009a95cccddfcc5a0acdf2143;hpb=0c01857df57fe8723714e49459e0c061fcaf056b;p=git.git

diff --git a/t/t4031-diff-rewrite-binary.sh b/t/t4031-diff-rewrite-binary.sh
index e16c35510..a894c6062 100755
--- a/t/t4031-diff-rewrite-binary.sh
+++ b/t/t4031-diff-rewrite-binary.sh
@@ -7,6 +7,8 @@ test_description='rewrite diff on binary file'
 # We must be large enough to meet the MINIMUM_BREAK_SIZE
 # requirement.
 make_file() {
+	# common first line to help identify rewrite versus regular diff
+	printf "=\n" >file
 	for i in 1 2 3 4 5 6 7 8 9 10
 	do
 		for j in 1 2 3 4 5 6 7 8 9
@@ -16,7 +18,7 @@ make_file() {
 				printf "$1\n"
 			done
 		done
-	done >file
+	done >>file
 }
 
 test_expect_success 'create binary file with changes' '
@@ -42,4 +44,24 @@ test_expect_success 'rewrite diff can show binary patch' '
 	grep "GIT binary patch" diff
 '
 
+{
+	echo "#!$SHELL_PATH"
+	cat <<'EOF'
+perl -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
+EOF
+} >dump
+chmod +x dump
+
+test_expect_success 'setup textconv' '
+	echo file diff=foo >.gitattributes &&
+	git config diff.foo.textconv "$PWD"/dump
+'
+
+test_expect_success 'rewrite diff respects textconv' '
+	git diff -B >diff &&
+	grep "dissimilarity index" diff &&
+	grep "^-61" diff &&
+	grep "^-0" diff
+'
+
 test_done