assertEscapePattern("", "# Test");
        assertEscapePattern(".*\\Q!/\\E.*", "!/");
        assertEscapePattern("\\Qindex.html\\E", "index.html");
        assertEscapePattern("^\\Qhttp://\\E.*", "^http://");
        assertEscapePattern(".*\\Qindex.html\\E$", "index.html$");
        assertEscapePattern("^\\Qhttp://www.codelibs.org/page.html\\E$", "^http://www.codelibs.org/page.html$");