Support for cookies in the HTTP library

tests/standalone/io/http_headers_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #source("../../../runtime/bin/input_stream.dart");
 #source("../../../runtime/bin/output_stream.dart");
 #source("../../../runtime/bin/chunked_stream.dart");
 #source("../../../runtime/bin/string_stream.dart");
 #source("../../../runtime/bin/stream_util.dart");
 #source("../../../runtime/bin/http.dart");
@@ skipping 258 matching lines @@
   headers.set(HttpHeaders.CONTENT_TYPE, "text/plain; charset=utf-8");
   Expect.equals("text", headers.contentType.primaryType);
   Expect.equals("plain", headers.contentType.subType);
   Expect.equals("text/plain", headers.contentType.value);
   headers.removeAll(HttpHeaders.CONTENT_TYPE);
   Expect.equals("", headers.contentType.primaryType);
   Expect.equals("", headers.contentType.subType);
   Expect.equals("/", headers.contentType.value);
 }
 
+void testCookie() {
+  void checkCookiesEquals(a, b) {
+    Expect.equals(a.name, b.name);
+    Expect.equals(a.value, b.value);
+    Expect.equals(a.expires, b.expires);
+    Expect.equals(a.toString(), b.toString());
+  }
+
+  void checkCookie(cookie, s) {
+    Expect.equals(s, cookie.toString());
+    var c = new _Cookie.fromSetCookieValue(s);
+    checkCookiesEquals(cookie, c);
+  }
+
+  Cookie cookie;
+  cookie = new Cookie("name", "value");
+  Expect.equals("name=value", cookie.toString());
+  TimeZone utc = new TimeZone.utc();
+  Date date = new Date.withTimeZone(2014, Date.JAN, 5, 23, 59, 59, 0, utc);
+  cookie.expires = date;
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT");
+  cookie.maxAge = 567;
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT"
+                      "; Max-Age=567");
+  cookie.domain = "example.com";
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT"
+                      "; Max-Age=567"
+                      "; Domain=example.com");
+  cookie.path = "/xxx";
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT"
+                      "; Max-Age=567"
+                      "; Domain=example.com"
+                      "; Path=/xxx");
+  cookie.secure = true;
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT"
+                      "; Max-Age=567"
+                      "; Domain=example.com"
+                      "; Path=/xxx"
+                      "; Secure");
+  cookie.httpOnly = true;
+  checkCookie(cookie, "name=value"
+                      "; Expires=Sun, 5 Jan 2014 23:59:59 GMT"
+                      "; Max-Age=567"
+                      "; Domain=example.com"
+                      "; Path=/xxx"
+                      "; Secure"
+                      "; HttpOnly");
+  cookie.expires = null;
+  checkCookie(cookie, "name=value"
+                      "; Max-Age=567"
+                      "; Domain=example.com"
+                      "; Path=/xxx"
+                      "; Secure"
+                      "; HttpOnly");
+  cookie.maxAge = null;
+  checkCookie(cookie, "name=value"
+                      "; Domain=example.com"
+                      "; Path=/xxx"
+                      "; Secure"
+                      "; HttpOnly");
+  cookie.domain = null;
+  checkCookie(cookie, "name=value"
+                      "; Path=/xxx"
+                      "; Secure"
+                      "; HttpOnly");
+  cookie.path = null;
+  checkCookie(cookie, "name=value"
+                      "; Secure"
+                      "; HttpOnly");
+  cookie.secure = false;
+  checkCookie(cookie, "name=value"
+                      "; HttpOnly");
+  cookie.httpOnly = false;
+  checkCookie(cookie, "name=value");
+}
+
 main() {
   testMultiValue();
   testExpires();
   testHost();
   testEnumeration();
   testHeaderValue();
   testContentType();
   testContentTypeCache();
+  testCookie();
 }