TEST_F(RouterTest, AppendUpstreamHost10) {
  testAppendUpstreamHost(absl::make_optional(Http::LowerCaseString("x-custom-upstream-hostname")),
                         absl::nullopt);
}
TEST_F(RouterTest, AppendUpstreamHost10) {
  testAppendUpstreamHost(absl::make_optional(Http::LowerCaseString("x-custom-upstream-hostname")),
                         absl::nullopt);
}