Add missing files from previous commit

tests/standalone/io/string_transformer_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.
+
+import "dart:async";
+import "dart:io";
+import "dart:isolate";
+import "dart:utf";
+
+void testUtf8() {
+  List<int> data = [0x01,
+                    0x7f,
+                    0xc2, 0x80,
+                    0xdf, 0xbf,
+                    0xe0, 0xa0, 0x80,
+                    0xef, 0xbf, 0xbf,
+                    0xf0, 0x9d, 0x84, 0x9e,
+                    0x100, -0x1, -0xFF];
+  var controller = new StreamController();
+  controller.add(data);
+  controller.close();
+  var stringStream = controller.stream
+    .transform(new StringDecoder(Encoding.UTF_8));
+  stringStream.listen(
+    (s) {
+      Expect.equals(11, 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]);
+      Expect.equals(new String.fromCharCodes([0xffff]), s[5]);
+
+      // Surrogate pair for U+1D11E.
+      Expect.equals(new String.fromCharCodes([0xd834, 0xdd1e]),
+                    s.substring(6, 8));
+
+      Expect.equals(new String.fromCharCodes(
+          [UNICODE_REPLACEMENT_CHARACTER_CODEPOINT,
+           UNICODE_REPLACEMENT_CHARACTER_CODEPOINT,
+           UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]),
+          s.substring(8, 11));
+    });
+}
+
+void testLatin1() {
+  List<int> data = [0x01,
+                    0x7f,
+                    0x44, 0x61, 0x72, 0x74,
+                    0x80,
+                    0xff,
+                    0x100, -0x1, -0xff];
+  var controller = new StreamController();
+  controller.add(data);
+  controller.close();
+  var stream = controller.stream
+    .transform(new StringDecoder(Encoding.ISO_8859_1));
+  stream.listen((s) {
+    Expect.equals(11, 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]);
+    Expect.equals('???', s.substring(8, 11));
+  });
+}
+
+void testAscii() {
+  List<int> data = [0x01,
+                    0x44, 0x61, 0x72, 0x74,
+                    0x7f,
+                    0xf4, 0x100, -0x1, -0xff];
+  var controller = new StreamController();
+  controller.add(data);
+  controller.close();
+  var stream = controller.stream
+    .transform(new StringDecoder(Encoding.ASCII));
+  stream.listen((s) {
+    Expect.equals(10, 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]);
+    Expect.equals('????', s.substring(6, 10));
+  });
+}
+
+void testReadLine1() {
+  var controller = new StreamController();
+  var stream = controller.stream
+      .transform(new StringDecoder())
+      .transform(new LineTransformer());
+
+  var stage = 0;
+
+  void stringData(line) {
+    var line;
+    if (stage == 0) {
+      Expect.equals(null, line);
+      stage++;
+      controller.close();
+    } else if (stage == 1) {
+      Expect.equals("Line", line);
+      stage++;
+    }
+  }
+
+  void streamClosed() {
+    Expect.equals(2, stage);
+  }
+
+  stream.listen(
+      stringData,
+      onDone: streamClosed);
+
+  controller.add("Line".charCodes);
+}
+
+void testReadLine2() {
+  var controller = new StreamController();
+
+  var stream = controller.stream
+    .transform(new StringDecoder())
+    .transform(new LineTransformer());
+
+  var stage = 0;
+  var subStage = 0;
+  stream.listen((line) {
+      if (stage == 0) {
+        if (subStage == 0) {
+          Expect.equals("Line1", line);
+          subStage++;
+        } else if (subStage == 1) {
+          Expect.equals("Line2", line);
+          subStage++;
+        } else if (subStage == 2) {
+          Expect.equals("Line3", line);
+          subStage = 0;
+          stage++;
+          controller.add("ne4\n".charCodes);
+        } else {
+          Expect.fail("Stage 0 failed");
+        }
+      } else if (stage == 1) {
+        if (subStage == 0) {
+          Expect.equals("Line4", line);
+          subStage = 0;
+          stage++;
+          controller.add("\n\n\r\n\r\n\r\r".charCodes);
+        } else {
+          Expect.fail("Stage 1 failed");
+        }
+      } else if (stage == 2) {
+        if (subStage < 4) {
+          // Expect 5 empty lines. As long as the stream is not closed the
+          // final \r cannot be interpreted as a end of line.
+          Expect.equals("", line);
+          subStage++;
+        } else if (subStage == 4) {
+          Expect.equals("", line);
+          subStage = 0;
+          stage++;
+          controller.close();
+        } else {
+          Expect.fail("Stage 2 failed");
+        }
+      } else if (stage == 3) {
+        if (subStage == 0) {
+          Expect.equals("", line);
+          stage++;
+        } else {
+          Expect.fail("Stage 3 failed");
+        }
+      }
+    }, onDone: () {
+      Expect.equals(4, stage);
+      Expect.equals(0, subStage);
+    });
+
+  controller.add("Line1\nLine2\r\nLine3\rLi".charCodes);
+}
+
+class TestException implements Exception {
+  TestException();
+}
+
+testErrorHandler() {
+  var controller = new StreamController();
+  var errors = 0;
+  var stream = controller.stream
+    .transform(new StringDecoder())
+    .transform(new LineTransformer());
+  stream.listen(
+      (_) {},
+      onDone: () {
+        Expect.equals(1, errors);
+      },
+      onError: (e) {
+        errors++;
+        Expect.isTrue(e.error is TestException);
+      });
+  controller.signalError(new TestException());
+  controller.close();
+}
+
+testLatin1EncoderError() {
+  List<int> data = [0x01,
+                    0x7f,
+                    0x44, 0x61, 0x72, 0x74,
+                    0x80,
+                    0xff,
+                    0x100];
+  var controller = new StreamController();
+  controller.add(new String.fromCharCodes(data));
+  controller.close();
+  var stream = controller.stream
+    .transform(new StringEncoder(Encoding.ISO_8859_1));
+  stream.listen(
+    (s) {
+      Expect.fail("data not expected");
+    },
+    onError: (error) {
+    print(error);
+      Expect.isTrue(error.error is FormatException);
+    });
+
+}
+
+main() {
+  testUtf8();
+  testLatin1();
+  testAscii();
+  testReadLine1();
+  testReadLine2();
+  testErrorHandler();
+  testLatin1EncoderError();
+}