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-rwxr-xr-xt/t4029-diff-trailing-space.sh43
1 files changed, 43 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..32b6e9a4e7
--- /dev/null
+++ b/t/t4029-diff-trailing-space.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# Copyright (c) Jim Meyering
+#
+test_description='diff honors config option, diff.suppressBlankEmpty'
+
+. ./test-lib.sh
+
+cat <<\EOF >expected ||
+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 "$test_description" '
+ printf "\nx\n" > f &&
+ before=$(git hash-object f) &&
+ before=$(git rev-parse --short $before) &&
+ git add f &&
+ git commit -q -m. f &&
+ printf "\ny\n" > f &&
+ after=$(git hash-object f) &&
+ after=$(git rev-parse --short $after) &&
+ sed -e "s/^index .*/index $before..$after 100644/" expected >exp &&
+ git config --bool diff.suppressBlankEmpty true &&
+ git diff f > actual &&
+ test_cmp exp actual &&
+ perl -i.bak -p -e "s/^\$/ /" exp &&
+ git config --bool diff.suppressBlankEmpty false &&
+ git diff f > actual &&
+ test_cmp exp actual &&
+ git config --bool --unset diff.suppressBlankEmpty &&
+ git diff f > actual &&
+ test_cmp exp actual
+'
+
+test_done