Add unit test for #1491
diff --git a/src/util_test.cc b/src/util_test.cc
index b4b7516..d97b48c 100644
--- a/src/util_test.cc
+++ b/src/util_test.cc
@@ -419,10 +419,12 @@
 TEST(ElideMiddle, NothingToElide) {
   string input = "Nothing to elide in this short string.";
   EXPECT_EQ(input, ElideMiddle(input, 80));
+  EXPECT_EQ(input, ElideMiddle(input, 38));
 }
 
 TEST(ElideMiddle, ElideInTheMiddle) {
   string input = "01234567890123456789";
   string elided = ElideMiddle(input, 10);
   EXPECT_EQ("012...789", elided);
+  EXPECT_EQ("01234567...23456789", ElideMiddle(input, 19));
 }