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-rwxr-xr-xt/t4029-diff-trailing-space.sh39
1 files changed, 39 insertions, 0 deletions
diff --git a/t/t4029-diff-trailing-space.sh b/t/t4029-diff-trailing-space.sh
new file mode 100755
index 0000000000..4ca65e0332
--- /dev/null
+++ b/t/t4029-diff-trailing-space.sh
@@ -0,0 +1,39 @@
+#!/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