Add input streams based on supplying data from lists

tests/standalone/src/StringStreamTest.dart

 // Copyright (c) 2011, 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.
 
-class ListInputStream implements InputStream {
-  List<int> read() {
-    var result = _data;
-    _data = null;
-    return result;
-  }
-
-  void set dataHandler(void callback()) {
-    _dataHandler = callback;
-  }
-
-  void set closeHandler(void callback()) {
-    _closeHandler = callback;
-  }
-
-  void set errorHandler(void callback(int error)) {
-  }
-
-  void write(List<int> data) {
-    Expect.equals(null, _data);
-    _data = data;
-    if (_dataHandler != null) {
-      // Data handler is not called through the event loop here.
-      _dataHandler();
-    }
-  }
-
-  void close() {
-    // Close handler is not called through the event loop here.
-    if (_closeHandler != null) _closeHandler();
-  }
-
-  List<int> _data;
-  var _dataHandler;
-  var _closeHandler;
-}
-
 void testUtf8() {
   List<int> data = [0x01,
                     0x7f,
                     0xc2, 0x80,
                     0xdf, 0xbf,
                     0xe0, 0xa0, 0x80,
                     0xef, 0xbf, 0xbf];
-  InputStream s = new ListInputStream();
+  InputStream s = new ListInputStream(data);
   StringInputStream stream = new StringInputStream(s);
   void stringData() {
     String s = stream.read();
     Expect.equals(6, s.length);
     Expect.equals(new String.fromCharCodes([0x01]), s[0]);
     Expect.equals(new String.fromCharCodes([0x7f]), s[1]);
     Expect.equals(new String.fromCharCodes([0x80]), s[2]);
     Expect.equals(new String.fromCharCodes([0x7ff]), s[3]);
     Expect.equals(new String.fromCharCodes([0x800]), s[4]);
     Expect.equals(new String.fromCharCodes([0xffff]), s[5]);
   }
   stream.dataHandler = stringData;
-  s.write(data);
 }
 
 void testLatin1() {
   List<int> data = [0x01,
                     0x7f,
                     0x44, 0x61, 0x72, 0x74,
                     0x80,
                     0xff];
-  InputStream s = new ListInputStream();
+  InputStream s = new ListInputStream(data);
   StringInputStream stream = new StringInputStream(s, "ISO-8859-1");
   void stringData() {
     String s = stream.read();
     Expect.equals(8, s.length);
     Expect.equals(new String.fromCharCodes([0x01]), s[0]);
     Expect.equals(new String.fromCharCodes([0x7f]), s[1]);
     Expect.equals("Dart", s.substring(2, 6));
     Expect.equals(new String.fromCharCodes([0x80]), s[6]);
     Expect.equals(new String.fromCharCodes([0xff]), s[7]);
   }
   stream.dataHandler = stringData;
-  s.write(data);
 }
 
 void testAscii() {
   List<int> data = [0x01,
                     0x44, 0x61, 0x72, 0x74,
                     0x7f];
-  InputStream s = new ListInputStream();
+  InputStream s = new ListInputStream(data);
   StringInputStream stream = new StringInputStream(s, "ASCII");
   void stringData() {
     String s = stream.read();
     Expect.equals(6, s.length);
     Expect.equals(new String.fromCharCodes([0x01]), s[0]);
     Expect.equals("Dart", s.substring(1, 5));
     Expect.equals(new String.fromCharCodes([0x7f]), s[5]);
   }
   stream.dataHandler = stringData;
-  s.write(data);
 }
 
 void testReadLine1() {
-  InputStream s = new ListInputStream();
+  InputStream s = new DynamicListInputStream();
   StringInputStream stream = new StringInputStream(s);
   var stage = 0;
 
   void stringData() {
     var line;
     if (stage == 0) {
       line = stream.readLine();
       Expect.equals(null, line);
       stage++;
-      s.close();
+      s.markEndOfStream();
     } else if (stage == 1) {
       line = stream.readLine();
       Expect.equals("Line", line);
       line = stream.readLine();
       Expect.equals(null, line);
       stage++;
     }
   }
 
   void streamClosed() {
     Expect.equals(true, stream.closed);
     Expect.equals(2, stage);
   }
 
   stream.dataHandler = stringData;
   stream.closeHandler = streamClosed;
   s.write("Line".charCodes());
 }
 
 void testReadLine2() {
-  InputStream s = new ListInputStream();
+  InputStream s = new DynamicListInputStream();
   StringInputStream stream = new StringInputStream(s);
   var stage = 0;
 
   void stringData() {
     var line;
     if (stage == 0) {
       line = stream.readLine();
       Expect.equals("Line1", line);
       line = stream.readLine();
       Expect.equals("Line2", line);
@@ skipping 13 matching lines @@
     } else if (stage == 2) {
       // Expect 5 empty lines. As long as the stream is not closed the
       // final \r cannot be interpreted as a end of line.
       for (int i = 0; i < 5; i++) {
         line = stream.readLine();
         Expect.equals("", line);
       }
       line = stream.readLine();
       Expect.equals(null, line);
       stage++;
-      s.close();
+      s.markEndOfStream();
     } else if (stage == 3) {
       // The final \r can now be interpreted as an end of line.
       line = stream.readLine();
       Expect.equals("", line);
       line = stream.readLine();
       Expect.equals(null, line);
       stage++;
     }
   }
 
   void streamClosed() {
     Expect.equals(4, stage);
     Expect.equals(true, stream.closed);
   }
 
   stream.lineHandler = stringData;
   stream.closeHandler = streamClosed;
   s.write("Line1\nLine2\r\nLine3\rLi".charCodes());
 }
 
 main() {
   testUtf8();
   testLatin1();
   testAscii();
   testReadLine1();
   testReadLine2();
 }