Add test of the HTTP headers object

tests/standalone/src/io/HttpHeadersTest.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");
+#source("../../../../runtime/bin/http_impl.dart");
+#source("../../../../runtime/bin/http_parser.dart");
+#source("../../../../runtime/bin/http_utils.dart");
+
+void testMultiValue() {
+  _HttpHeaders headers = new _HttpHeaders();
+  Expect.isNull(headers[HttpHeaders.PRAGMA]);
+  headers.add(HttpHeaders.PRAGMA, "pragma1");
+  Expect.equals(1, headers[HttpHeaders.PRAGMA].length);
+  Expect.equals(1, headers["pragma"].length);
+  Expect.equals(1, headers["Pragma"].length);
+  Expect.equals(1, headers["PRAGMA"].length);
+  Expect.equals("pragma1", headers.value(HttpHeaders.PRAGMA));
+
+  headers.add(HttpHeaders.PRAGMA, "pragma2");
+  Expect.equals(2, headers[HttpHeaders.PRAGMA].length);
+  Expect.throws(() => headers.value(HttpHeaders.PRAGMA),
+                (e) => e is HttpException);
+
+  headers.add(HttpHeaders.PRAGMA, ["pragma3", "pragma4"]);
+  Expect.listEquals(["pragma1", "pragma2", "pragma3", "pragma4"],
+                    headers[HttpHeaders.PRAGMA]);
+
+  headers.remove(HttpHeaders.PRAGMA, "pragma3");
+  Expect.equals(3, headers[HttpHeaders.PRAGMA].length);
+  Expect.listEquals(["pragma1", "pragma2", "pragma4"],
+                    headers[HttpHeaders.PRAGMA]);
+
+  headers.remove(HttpHeaders.PRAGMA, "pragma3");
+  Expect.equals(3, headers[HttpHeaders.PRAGMA].length);
+
+  headers.set(HttpHeaders.PRAGMA, "pragma5");
+  Expect.equals(1, headers[HttpHeaders.PRAGMA].length);
+
+  headers.set(HttpHeaders.PRAGMA, ["pragma6", "pragma7"]);
+  Expect.equals(2, headers[HttpHeaders.PRAGMA].length);
+
+  headers.removeAll(HttpHeaders.PRAGMA);
+  Expect.isNull(headers[HttpHeaders.PRAGMA]);
+}
+
+void testExpires() {
+  Date date1 = new Date.withTimeZone(
+      1999, Date.JUN, 11, 18, 46, 53, 0, new TimeZone.utc());
+  String httpDate1 = "Fri, 11 Jun 1999 18:46:53 GMT";
+  Date date2 = new Date.withTimeZone(
+      2000, Date.AUG, 16, 12, 34, 56, 0, new TimeZone.utc());
+  String httpDate2 = "Wed, 16 Aug 2000 12:34:56 GMT";
+
+  _HttpHeaders headers = new _HttpHeaders();
+  Expect.isNull(headers.expires);
+  headers.expires = date1;
+  Expect.equals(date1, headers.expires);
+  Expect.equals(httpDate1, headers.value(HttpHeaders.EXPIRES));
+  Expect.equals(1, headers[HttpHeaders.EXPIRES].length);
+  headers.add(HttpHeaders.EXPIRES, httpDate2);
+  Expect.equals(1, headers[HttpHeaders.EXPIRES].length);
+  Expect.equals(date2, headers.expires);
+  Expect.equals(httpDate2, headers.value(HttpHeaders.EXPIRES));
+  headers.set(HttpHeaders.EXPIRES, httpDate1);
+  Expect.equals(1, headers[HttpHeaders.EXPIRES].length);
+  Expect.equals(date1, headers.expires);
+  Expect.equals(httpDate1, headers.value(HttpHeaders.EXPIRES));
+
+  headers.set(HttpHeaders.EXPIRES, "xxx");
+  Expect.equals("xxx", headers.value(HttpHeaders.EXPIRES));
+  Expect.equals(null, headers.expires);
+}
+
+void testHost() {
+  String host = "www.google.com";
+  _HttpHeaders headers = new _HttpHeaders();
+  Expect.isNull(headers.host);
+  Expect.isNull(headers.port);
+  headers.host = host;
+  Expect.equals(host, headers.value(HttpHeaders.HOST));
+  headers.port = 1234;
+  Expect.equals("$host:1234", headers.value(HttpHeaders.HOST));
+  headers.port = HttpClient.DEFAULT_HTTP_PORT;
+  Expect.equals(host, headers.value(HttpHeaders.HOST));
+
+  headers = new _HttpHeaders();
+  headers.add(HttpHeaders.HOST, host);
+  Expect.equals(host, headers.host);
+  Expect.equals(HttpClient.DEFAULT_HTTP_PORT, headers.port);
+  headers.add(HttpHeaders.HOST, "$host:4567");
+  Expect.equals(1, headers[HttpHeaders.HOST].length);
+  Expect.equals(host, headers.host);
+  Expect.equals(4567, headers.port);
+
+  headers = new _HttpHeaders();
+  headers.add(HttpHeaders.HOST, "$host:xxx");
+  Expect.equals("$host:xxx", headers.value(HttpHeaders.HOST));
+  Expect.equals(host, headers.host);
+  Expect.isNull(headers.port);
+
+  headers = new _HttpHeaders();
+  headers.add(HttpHeaders.HOST, ":1234");
+  Expect.equals(":1234", headers.value(HttpHeaders.HOST));
+  Expect.isNull(headers.host);
+  Expect.equals(1234, headers.port);
+}
+
+main() {
+  testMultiValue();
+  testExpires();
+  testHost();
+}