Update charted to 0.4.8 and roll

packages/quiver/test/streams/streambuffer_test.dart

-// Copyright 2014 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-library quiver.streams.streambuffer_test;
-
-import 'dart:async';
-import 'package:test/test.dart';
-import 'package:quiver/streams.dart';
-
-void main() {
-  group("StreamBuffer", () {
-    test("returns orderly overlaps", () {
-      StreamBuffer<int> buf = new StreamBuffer();
-      new Stream.fromIterable([[1], [2, 3, 4], [5, 6, 7, 8]]).pipe(buf);
-      return Future.wait([buf.read(2), buf.read(4), buf.read(2)]).then((vals) {
-        expect(vals[0], equals([1, 2]));
-        expect(vals[1], equals([3, 4, 5, 6]));
-        expect(vals[2], equals([7, 8]));
-      }).then((_) {
-        buf.close();
-      });
-    });
-
-    test("respects pausing of stream", () {
-      StreamBuffer<int> buf = new StreamBuffer()..limit = 2;
-      new Stream.fromIterable([[1], [2], [3], [4]]).pipe(buf);
-      return buf.read(2).then((val) {
-        expect(val, [1, 2]);
-      }).then((_) {
-        return buf.read(2);
-      }).then((val) {
-        expect(val, [3, 4]);
-      });
-    });
-
-    test("throws when reading too much", () {
-      StreamBuffer<int> buf = new StreamBuffer()..limit = 1;
-      new Stream.fromIterable([[1], [2]]).pipe(buf);
-      try {
-        buf.read(2);
-      } catch (e) {
-        expect(e, isArgumentError);
-        return;
-      }
-      fail("error not thrown when reading more data than buffer limit");
-    });
-
-    test("allows patching of streams", () {
-      StreamBuffer<int> buf = new StreamBuffer();
-      new Stream.fromIterable([1, 2]).pipe(buf).then((_) {
-        return new Stream.fromIterable([3, 4]).pipe(buf);
-      });
-      return Future.wait([buf.read(1), buf.read(2), buf.read(1)]).then((vals) {
-        expect(vals[0], equals([1]));
-        expect(vals[1], equals([2, 3]));
-        expect(vals[2], equals([4]));
-      });
-    });
-
-    test("underflows when asked to", () {
-      StreamBuffer<int> buf = new StreamBuffer(throwOnError: true);
-      var error;
-      var future = buf.read(4).then((bytes) {
-        fail("should not have gotten bytes: $bytes");
-      }).catchError((e) {
-        error = e;
-      }).then((_) {
-        expect(error is UnderflowError, isTrue,
-            reason: "!UnderflowError: $error");
-      });
-      new Stream.fromIterable([1, 2, 3]).pipe(buf);
-      return future;
-    });
-  });
-}