+#!/bin/bash
+#
+# Copyright (c) Jim Meyering
+#
+test_description='diff honors config option, diff.suppress-blank-empty'
+
+. ./test-lib.sh
+
+cat <<\EOF > exp ||
+diff --git a/f b/f
+index 5f6a263..8cb8bae 100644
+--- a/f
++++ b/f
+@@ -1,2 +1,2 @@
+
+-x
++y
+EOF
+exit 1
+
+test_expect_success \
+ "$test_description" \
+ 'printf "\nx\n" > f &&
+ git add f &&
+ git commit -q -m. f &&
+ printf "\ny\n" > f &&
+ git config --bool diff.suppress-blank-empty true &&
+ git diff f > actual &&
+ test_cmp exp actual &&
+ perl -i.bak -p -e "s/^\$/ /" exp &&
+ git config --bool diff.suppress-blank-empty false &&
+ git diff f > actual &&
+ test_cmp exp actual &&
+ git config --bool --unset diff.suppress-blank-empty &&
+ git diff f > actual &&
+ test_cmp exp actual
+ '
+
+test_done