public void starts_with() {
RequestURIGrep grep = RequestURIGrep.matchUris()
.startsWith("/restricted")
.build();
assertThat(grep.matches("/restricted"), is(true));
assertThat(grep.matches("/restricted/secret"), is(true));
assertThat(grep.matches("/restricted/secret.pdf"), is(true));
assertThat(grep.matches("/open"), is(false));
assertThat(grep.matches("/open/restricted"), is(false));
}