diff --git a/tests/test-bdiff.out b/tests/test-bdiff.out
new file mode 100644
--- /dev/null
+++ b/tests/test-bdiff.out
@@ -0,0 +1,20 @@
+*** 'a\nc\n\n\n\n' 'a\nb\n\n\n'
+*** 'a\nb\nc\n' 'a\nc\n'
+*** '' ''
+*** 'a\nb\nc' 'a\nb\nc'
+*** 'a\nb\nc\nd\n' 'a\nd\n'
+*** 'a\nb\nc\nd\n' 'a\nc\ne\n'
+*** 'a\nb\nc\n' 'a\nc\n'
+*** 'a\n' 'c\na\nb\n'
+*** 'a\n' ''
+*** 'a\n' 'b\nc\n'
+*** 'a\n' 'c\na\n'
+*** '' 'adjfkjdjksdhfksj'
+*** '' 'ab'
+*** '' 'abc'
+*** 'a' 'a'
+*** 'ab' 'ab'
+*** 'abc' 'abc'
+*** 'a\n' 'a\n'
+*** 'a\nb' 'a\nb'
+done