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-rwxr-xr-xt/t4015-diff-whitespace.sh22
1 files changed, 22 insertions, 0 deletions
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index ab4670d236..6b087df3dc 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -2008,4 +2008,26 @@ test_expect_success 'compare mixed whitespace delta across moved blocks' '
test_cmp expected actual
'
+# Note that the "6" in the expected hunk header below is funny, since we only
+# show 5 lines (the missing one was blank and thus ignored). This is how
+# --ignore-blank-lines behaves even without --function-context, and this test
+# is just checking the interaction of the two features. Don't take it as an
+# endorsement of that output.
+test_expect_success 'combine --ignore-blank-lines with --function-context' '
+ test_write_lines 1 "" 2 3 4 5 >a &&
+ test_write_lines 1 2 3 4 >b &&
+ test_must_fail git diff --no-index \
+ --ignore-blank-lines --function-context a b >actual.raw &&
+ sed -n "/@@/,\$p" <actual.raw >actual &&
+ cat <<-\EOF >expect &&
+ @@ -1,6 +1,4 @@
+ 1
+ 2
+ 3
+ 4
+ -5
+ EOF
+ test_cmp expect actual
+'
+
test_done