Add data-URI support class to dart:core (next to Uri).

tests/corelib/uri_query_test.dart

-// Copyright (c) 2013, 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.
-
-import "package:expect/expect.dart";
-
-void testInvalidArguments() {
-}
-
-void testEncodeQueryComponent() {
-  // This exact data is from posting a form in Chrome 26 with the one
-  // exception that * is encoded as %30 and ~ is not encoded as %7E.
-  Expect.equals(
-      "%21%22%23%24%25%26%27%28%29%2A%2B%2C-.%2F%"
-      "3A%3B%3C%3D%3E%3F%40%5B%5C%5D%5E_%60%7B%7C%7D~",
-      Uri.encodeQueryComponent("!\"#\$%&'()*+,-./:;<=>?@[\\]^_`{|}~"));
-  Expect.equals("+%2B+", Uri.encodeQueryComponent(" + "));
-  Expect.equals("%2B+%2B", Uri.encodeQueryComponent("+ +"));
-}
-
-void testQueryParameters() {
-  test(String query, Map<String, String> parameters, [String normalizedQuery]) {
-    if (normalizedQuery == null) normalizedQuery = query;
-    check(uri) {
-      Expect.isTrue(uri.hasQuery);
-      Expect.equals(normalizedQuery, uri.query);
-      Expect.equals("?$normalizedQuery", uri.toString());
-      if (parameters.containsValue(null)) {
-        var map = new Map.from(parameters);
-        map.forEach((k, v) { if (v == null) map[k] = ""; });
-        Expect.mapEquals(map, uri.queryParameters);
-      } else {
-        Expect.mapEquals(parameters, uri.queryParameters);
-      }
-    }
-
-    var uri1 = new Uri(queryParameters: parameters);
-    var uri2 = new Uri(query: query);
-    var uri3 = Uri.parse("?$query");
-    check(uri1);
-    if (query != "") {
-      check(uri2);
-    } else {
-      Expect.isFalse(uri2.hasQuery);
-    }
-    check(uri3);
-    Expect.equals(uri1, uri3);
-    if (query != "") Expect.equals(uri2, uri3);
-    if (parameters.containsValue(null)) {
-      var map = new Map.from(parameters);
-      map.forEach((k, v) { if (v == null) map[k] = ""; });
-      Expect.mapEquals(map, Uri.splitQueryString(query));
-    } else {
-      Expect.mapEquals(parameters, Uri.splitQueryString(query));
-    }
-  }
-
-  test("", {});
-  test("A", {"A": null});
-  test("%25", {"%": null});
-  test("%41", {"A": null}, "A");
-  test("%41A", {"AA": null}, "AA");
-  test("A", {"A": ""});
-  test("%25", {"%": ""});
-  test("%41", {"A": ""}, "A");
-  test("%41A", {"AA": ""}, "AA");
-  test("A=a", {"A": "a"});
-  test("%25=a", {"%": "a"});
-  test("%41=%61", {"A": "a"}, "A=a");
-  test("A=+", {"A": " "});
-  test("A=%2B", {"A": "+"});
-  test("A=a&B", {"A": "a", "B": null});
-  test("A=a&B", {"A": "a", "B": ""});
-  test("A=a&B=b", {"A": "a", "B": "b"});
-  test("%41=%61&%42=%62", {"A": "a", "B": "b"}, "A=a&B=b");
-
-  var unreserved = "-._~0123456789"
-                   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                   "abcdefghijklmnopqrstuvwxyz";
-  var encoded = new StringBuffer();
-  var allEncoded = new StringBuffer();
-  var unencoded = new StringBuffer();
-  for (int i = 32; i < 128; i++) {
-    if (i == 32) {
-      encoded.write("+");
-    } else if (unreserved.indexOf(new String.fromCharCode(i)) != -1) {
-      encoded.writeCharCode(i);
-    } else {
-      encoded.write("%");
-      encoded.write(i.toRadixString(16).toUpperCase());
-    }
-    if (i == 32) {
-      allEncoded.write("+");
-    } else {
-      allEncoded.write("%");
-      allEncoded.write(i.toRadixString(16).toUpperCase());
-    }
-    unencoded.writeCharCode(i);
-  }
-  encoded = encoded.toString();
-  unencoded = unencoded.toString();
-  test("a=$encoded", {"a": unencoded});
-  test("a=$encoded&b=$encoded", {"a": unencoded, "b": unencoded});
-
-  var map = new Map();
-  map[unencoded] = unencoded;
-  test("$encoded=$encoded", map);
-  test("$encoded=$allEncoded", map, "$encoded=$encoded");
-  test("$allEncoded=$encoded", map, "$encoded=$encoded");
-  test("$allEncoded=$allEncoded", map, "$encoded=$encoded");
-  map[unencoded] = null;
-  test("$encoded", map);
-  map[unencoded] = "";
-  test("$encoded", map);
-}
-
-testInvalidQueryParameters() {
-  test(String query, Map<String, String> parameters) {
-    check(uri) {
-      Expect.equals(query, uri.query);
-      if (query.isEmpty) {
-        Expect.equals(query, uri.toString());
-      } else {
-        Expect.equals("?$query", uri.toString());
-      }
-      if (parameters.containsValue(null)) {
-      } else {
-        Expect.mapEquals(parameters, uri.queryParameters);
-      }
-    }
-
-    var uri1 = new Uri(query: query);
-    var uri2 = Uri.parse("?$query");
-    check(uri1);
-    check(uri2);
-    Expect.equals(uri1, uri2);
-  }
-
-  test("=", {});
-  test("=xxx", {});
-  test("===", {});
-  test("=xxx=yyy=zzz", {});
-  test("=&=&=", {});
-  test("=xxx&=yyy&=zzz", {});
-  test("&=&=&", {});
-  test("&=xxx&=xxx&", {});
-}
-
-testQueryParametersImmutableMap() {
-  test(map) {
-    bool isUnsupported(e) => e is UnsupportedError;
-
-    Expect.isTrue(map.containsValue("b"));
-    Expect.isTrue(map.containsKey("a"));
-    Expect.equals("b", map["a"]);
-    Expect.throws(() => map["a"] = "c", isUnsupported);
-    Expect.throws(() => map.putIfAbsent("b", () => "e"), isUnsupported);
-    Expect.throws(() => map.remove("a"), isUnsupported);
-    Expect.throws(() => map.clear(), isUnsupported);
-    var count = 0;
-    map.forEach((key, value) => count++);
-    Expect.equals(2, count);
-    Expect.equals(2, map.keys.length);
-    Expect.equals(2, map.values.length);
-    Expect.equals(2, map.length);
-    Expect.isFalse(map.isEmpty);
-    Expect.isTrue(map.isNotEmpty);
-  }
-
-  test(Uri.parse("?a=b&c=d").queryParameters);
-  test(new Uri(queryParameters: {"a": "b", "c": "d"}).queryParameters);
-}
-
-main() {
-  testInvalidArguments();
-  testEncodeQueryComponent();
-  testQueryParameters();
-  testInvalidQueryParameters();
-  testQueryParametersImmutableMap();
-}