Convert shelf to use the string_scanner package.

pkg/shelf/test/string_scanner_test.dart

Index: pkg/shelf/test/string_scanner_test.dart
diff --git a/pkg/shelf/test/string_scanner_test.dart b/pkg/shelf/test/string_scanner_test.dart
deleted file mode 100644
index 4d3d259e5802361fc2ff9737345b16e8571afbe9..0000000000000000000000000000000000000000
--- a/pkg/shelf/test/string_scanner_test.dart
+++ /dev/null
@@ -1,266 +0,0 @@
-// Copyright (c) 2014, 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.
-
-library shelf.string_scanner_test;
-
-import 'package:shelf/src/string_scanner.dart';
-import 'package:unittest/unittest.dart';
-
-void main() {
-  group('with an empty string', () {
-    var scanner;
-    setUp(() {
-      scanner = new StringScanner('');
-    });
-
-    test('is done', () {
-      expect(scanner.isDone, isTrue);
-    });
-
-    test('rest is empty', () {
-      expect(scanner.rest, isEmpty);
-    });
-
-    test('lastMatch is null', () {
-      expect(scanner.lastMatch, isNull);
-    });
-
-    test('position is zero', () {
-      expect(scanner.position, equals(0));
-    });
-
-    test("scan returns false and doesn't change the state", () {
-      expect(scanner.scan(new RegExp('.')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-    });
-
-    test("expect throws a FormatException and doesn't change the state", () {
-      expect(() => scanner.expect(new RegExp('.'), 'error'),
-          throwsFormatException);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-    });
-
-    test("matches returns false and doesn't change the state", () {
-      expect(scanner.matches(new RegExp('.')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-    });
-
-    test('setting position to 1 throws an ArgumentError', () {
-      expect(() {
-        scanner.position = 1;
-      }, throwsArgumentError);
-    });
-
-    test('setting position to -1 throws an ArgumentError', () {
-      expect(() {
-        scanner.position = -1;
-      }, throwsArgumentError);
-    });
-  });
-
-  group('at the beginning of a string', () {
-    var scanner;
-    setUp(() {
-      scanner = new StringScanner('foo bar');
-    });
-
-    test('is not done', () {
-      expect(scanner.isDone, isFalse);
-    });
-
-    test('rest is the whole string', () {
-      expect(scanner.rest, equals('foo bar'));
-    });
-
-    test('lastMatch is null', () {
-      expect(scanner.lastMatch, isNull);
-    });
-
-    test('position is zero', () {
-      expect(scanner.position, equals(0));
-    });
-
-    test("a matching scan returns true and changes the state", () {
-      expect(scanner.scan(new RegExp('f(..)')), isTrue);
-      expect(scanner.lastMatch[1], equals('oo'));
-      expect(scanner.position, equals(3));
-      expect(scanner.rest, equals(' bar'));
-    });
-
-    test("a non-matching scan returns false and sets lastMatch to null", () {
-      expect(scanner.matches(new RegExp('f(..)')), isTrue);
-      expect(scanner.lastMatch, isNotNull);
-
-      expect(scanner.scan(new RegExp('b(..)')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-      expect(scanner.rest, equals('foo bar'));
-    });
-
-    test("a matching expect changes the state", () {
-      scanner.expect(new RegExp('f(..)'), 'error');
-      expect(scanner.lastMatch[1], equals('oo'));
-      expect(scanner.position, equals(3));
-      expect(scanner.rest, equals(' bar'));
-    });
-
-    test("a non-matching expect throws a FormatException and sets lastMatch to "
-        "null", () {
-      expect(scanner.matches(new RegExp('f(..)')), isTrue);
-      expect(scanner.lastMatch, isNotNull);
-
-      expect(() => scanner.expect(new RegExp('b(..)'), 'error'),
-          throwsFormatException);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-      expect(scanner.rest, equals('foo bar'));
-    });
-
-    test("a matching matches returns true and only changes lastMatch", () {
-      expect(scanner.matches(new RegExp('f(..)')), isTrue);
-      expect(scanner.lastMatch[1], equals('oo'));
-      expect(scanner.position, equals(0));
-      expect(scanner.rest, equals('foo bar'));
-    });
-
-    test("a non-matching matches returns false and doesn't change the state",
-        () {
-      expect(scanner.matches(new RegExp('b(..)')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(0));
-      expect(scanner.rest, equals('foo bar'));
-    });
-
-    test('setting position to 1 moves the cursor forward', () {
-      scanner.position = 1;
-      expect(scanner.position, equals(1));
-      expect(scanner.rest, equals('oo bar'));
-
-      expect(scanner.scan(new RegExp('oo.')), isTrue);
-      expect(scanner.lastMatch[0], equals('oo '));
-      expect(scanner.position, equals(4));
-      expect(scanner.rest, equals('bar'));
-    });
-
-    test('setting position beyond the string throws an ArgumentError', () {
-      expect(() {
-        scanner.position = 8;
-      }, throwsArgumentError);
-    });
-
-    test('setting position to -1 throws an ArgumentError', () {
-      expect(() {
-        scanner.position = -1;
-      }, throwsArgumentError);
-    });
-
-    test('scan accepts any Pattern', () {
-      expect(scanner.scan('foo'), isTrue);
-      expect(scanner.lastMatch[0], equals('foo'));
-      expect(scanner.position, equals(3));
-      expect(scanner.rest, equals(' bar'));
-    });
-
-    test('scans multiple times', () {
-      expect(scanner.scan(new RegExp('f(..)')), isTrue);
-      expect(scanner.lastMatch[1], equals('oo'));
-      expect(scanner.position, equals(3));
-      expect(scanner.rest, equals(' bar'));
-
-      expect(scanner.scan(new RegExp(' b(..)')), isTrue);
-      expect(scanner.lastMatch[1], equals('ar'));
-      expect(scanner.position, equals(7));
-      expect(scanner.rest, equals(''));
-      expect(scanner.isDone, isTrue);
-    });
-  });
-
-  group('at the end of a string', () {
-    var scanner;
-    setUp(() {
-      scanner = new StringScanner('foo bar');
-      expect(scanner.scan('foo bar'), isTrue);
-    });
-
-    test('is done', () {
-      expect(scanner.isDone, isTrue);
-    });
-
-    test('rest is empty', () {
-      expect(scanner.rest, isEmpty);
-    });
-
-    test('position is zero', () {
-      expect(scanner.position, equals(7));
-    });
-
-    test("scan returns false and sets lastMatch to null", () {
-      expect(scanner.scan(new RegExp('.')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(7));
-    });
-
-    test("expect throws a FormatException and sets lastMatch to null", () {
-      expect(() => scanner.expect(new RegExp('.'), 'error'),
-          throwsFormatException);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(7));
-    });
-
-    test("matches returns false sets lastMatch to null", () {
-      expect(scanner.matches(new RegExp('.')), isFalse);
-      expect(scanner.lastMatch, isNull);
-      expect(scanner.position, equals(7));
-    });
-
-    test('setting position to 1 moves the cursor backward', () {
-      scanner.position = 1;
-      expect(scanner.position, equals(1));
-      expect(scanner.rest, equals('oo bar'));
-
-      expect(scanner.scan(new RegExp('oo.')), isTrue);
-      expect(scanner.lastMatch[0], equals('oo '));
-      expect(scanner.position, equals(4));
-      expect(scanner.rest, equals('bar'));
-    });
-
-    test('setting position beyond the string throws an ArgumentError', () {
-      expect(() {
-        scanner.position = 8;
-      }, throwsArgumentError);
-    });
-
-    test('setting position to -1 throws an ArgumentError', () {
-      expect(() {
-        scanner.position = -1;
-      }, throwsArgumentError);
-    });
-  });
-
-  group('a scanner constructed with a custom position', () {
-    test('starts scanning from that position', () {
-      var scanner = new StringScanner('foo bar', position: 1);
-      expect(scanner.position, equals(1));
-      expect(scanner.rest, equals('oo bar'));
-
-      expect(scanner.scan(new RegExp('oo.')), isTrue);
-      expect(scanner.lastMatch[0], equals('oo '));
-      expect(scanner.position, equals(4));
-      expect(scanner.rest, equals('bar'));
-    });
-
-    test('throws an ArgumentError if the position is -1', () {
-      expect(() => new StringScanner('foo bar', position: -1),
-          throwsArgumentError);
-    });
-
-    test('throws an ArgumentError if the position is beyond the string', () {
-      expect(() => new StringScanner('foo bar', position: 8),
-          throwsArgumentError);
-    });
-  });
-}