### Question:
HttpHeadersTools { public boolean isBasicAuth() { Matcher m; if (authHeader == null) { return false; } m = basicRe.matcher(authHeader); if (!m.find()) { return false; } return true; } HttpHeadersTools();  HttpHeadersTools(HttpServletRequest req, HttpServletResponse res); boolean isValidAuth(); boolean isBasicAuth(); HttpServletRequest getReq(); void setReq(HttpServletRequest req); HttpServletResponse getRes(); void setRes(HttpServletResponse res); String getBasicString(); String getBasicUser(); String getBasicPassword(); boolean isHeaderTrue(String name); static Set<String> commastr2set(String valueStr); static String set2commastr(Set<String> values);  }### Answer:
@Test public void testIsBasicAuthShouldReturnFalseWhenAuthHeaderIsNotBasic() { httpHeadersTools = new HttpHeadersTools(otherAuthReq, resp); assertFalse(httpHeadersTools.isBasicAuth()); }
@Test public void testIsBasicAuthShouldReturnTrueWhenAuthIsBasic() { assertTrue(new HttpHeadersTools(AuthReq, resp).isBasicAuth()); assertTrue(new HttpHeadersTools(badBase64, resp).isBasicAuth()); assertTrue(new HttpHeadersTools(badUserPassPair, resp).isBasicAuth()); }
@Test public void testIsBasicAuthShouldReturnFalseWhenNoAuthHeaderSet() { httpHeadersTools = new HttpHeadersTools(noAuthReq, resp); assertFalse(httpHeadersTools.isBasicAuth()); }