Re-apply "Remove unittest and matcher from the repo."

pkg/matcher/lib/src/string_matchers.dart

Index: pkg/matcher/lib/src/string_matchers.dart
diff --git a/pkg/matcher/lib/src/string_matchers.dart b/pkg/matcher/lib/src/string_matchers.dart
deleted file mode 100644
index 616a4b633c58f9248fdeee5596b06b66c09693ce..0000000000000000000000000000000000000000
--- a/pkg/matcher/lib/src/string_matchers.dart
+++ /dev/null
@@ -1,203 +0,0 @@
-// 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.
-
-library matcher.string_matchers;
-
-import 'interfaces.dart';
-
-/// Returns a matcher which matches if the match argument is a string and
-/// is equal to [value] when compared case-insensitively.
-Matcher equalsIgnoringCase(String value) => new _IsEqualIgnoringCase(value);
-
-class _IsEqualIgnoringCase extends _StringMatcher {
-  final String _value;
-  final String _matchValue;
-
-  _IsEqualIgnoringCase(String value)
-      : _value = value,
-        _matchValue = value.toLowerCase();
-
-  bool matches(item, Map matchState) =>
-      item is String && _matchValue == item.toLowerCase();
-
-  Description describe(Description description) =>
-      description.addDescriptionOf(_value).add(' ignoring case');
-}
-
-/// Returns a matcher which matches if the match argument is a string and
-/// is equal to [value], ignoring whitespace.
-///
-/// In this matcher, "ignoring whitespace" means comparing with all runs of
-/// whitespace collapsed to single space characters and leading and trailing
-/// whitespace removed.
-///
-/// For example, the following will all match successfully:
-///
-///     expect("hello   world", equalsIgnoringCase("hello world"));
-///     expect("  hello world", equalsIgnoringCase("hello world"));
-///     expect("hello world  ", equalsIgnoringCase("hello world"));
-///
-/// The following will not match:
-///
-///     expect("helloworld", equalsIgnoringCase("hello world"));
-///     expect("he llo world", equalsIgnoringCase("hello world"));
-Matcher equalsIgnoringWhitespace(String value) =>
-    new _IsEqualIgnoringWhitespace(value);
-
-class _IsEqualIgnoringWhitespace extends _StringMatcher {
-  final String _value;
-  final String _matchValue;
-
-  _IsEqualIgnoringWhitespace(String value)
-      : _value = value,
-        _matchValue = collapseWhitespace(value);
-
-  bool matches(item, Map matchState) =>
-      item is String && _matchValue == collapseWhitespace(item);
-
-  Description describe(Description description) =>
-    description.addDescriptionOf(_matchValue).add(' ignoring whitespace');
-
-  Description describeMismatch(item, Description mismatchDescription,
-                               Map matchState, bool verbose) {
-    if (item is String) {
-      return mismatchDescription.add('is ').
-          addDescriptionOf(collapseWhitespace(item)).
-          add(' with whitespace compressed');
-    } else {
-      return super.describeMismatch(item, mismatchDescription,
-          matchState, verbose);
-    }
-  }
-}
-
-/// Returns a matcher that matches if the match argument is a string and
-/// starts with [prefixString].
-Matcher startsWith(String prefixString) => new _StringStartsWith(prefixString);
-
-class _StringStartsWith extends _StringMatcher {
-  final String _prefix;
-
-  const _StringStartsWith(this._prefix);
-
-  bool matches(item, Map matchState) =>
-      item is String && item.startsWith(_prefix);
-
-  Description describe(Description description) =>
-      description.add('a string starting with ').addDescriptionOf(_prefix);
-}
-
-/// Returns a matcher that matches if the match argument is a string and
-/// ends with [suffixString].
-Matcher endsWith(String suffixString) => new _StringEndsWith(suffixString);
-
-class _StringEndsWith extends _StringMatcher {
-  final String _suffix;
-
-  const _StringEndsWith(this._suffix);
-
-  bool matches(item, Map matchState) =>
-      item is String && item.endsWith(_suffix);
-
-  Description describe(Description description) =>
-      description.add('a string ending with ').addDescriptionOf(_suffix);
-}
-
-/// Returns a matcher that matches if the match argument is a string and
-/// contains a given list of [substrings] in relative order.
-///
-/// For example, `stringContainsInOrder(["a", "e", "i", "o", "u"])` will match
-/// "abcdefghijklmnopqrstuvwxyz".
-
-Matcher stringContainsInOrder(List<String> substrings) =>
-    new _StringContainsInOrder(substrings);
-
-class _StringContainsInOrder extends _StringMatcher {
-  final List<String> _substrings;
-
-  const _StringContainsInOrder(this._substrings);
-
-  bool matches(item, Map matchState) {
-    if (!(item is String)) {
-      return false;
-    }
-    var from_index = 0;
-    for (var s in _substrings) {
-      from_index = item.indexOf(s, from_index);
-      if (from_index < 0) return false;
-    }
-    return true;
-  }
-
-  Description describe(Description description) =>
-      description.addAll('a string containing ', ', ', ' in order',
-                                                  _substrings);
-}
-
-/// Returns a matcher that matches if the match argument is a string and
-/// matches the regular expression given by [re].
-///
-/// [re] can be a [RegExp] instance or a [String]; in the latter case it will be
-/// used to create a RegExp instance.
-Matcher matches(re) => new _MatchesRegExp(re);
-
-class _MatchesRegExp extends _StringMatcher {
-  RegExp _regexp;
-
-  _MatchesRegExp(re) {
-    if (re is String) {
-      _regexp = new RegExp(re);
-    } else if (re is RegExp) {
-      _regexp = re;
-    } else {
-      throw new ArgumentError('matches requires a regexp or string');
-    }
-  }
-
-  bool matches(item, Map matchState) =>
-    item is String ? _regexp.hasMatch(item) : false;
-
-  Description describe(Description description) =>
-      description.add("match '${_regexp.pattern}'");
-}
-
-// String matchers match against a string. We add this intermediate
-// class to give better mismatch error messages than the base Matcher class.
-abstract class _StringMatcher extends Matcher {
-  const _StringMatcher();
-  Description describeMismatch(item, Description mismatchDescription,
-                               Map matchState, bool verbose) {
-    if (!(item is String)) {
-      return mismatchDescription.
-          addDescriptionOf(item).
-          add(' not a string');
-    } else {
-      return super.describeMismatch(item, mismatchDescription,
-          matchState, verbose);
-    }
-  }
-}
-
-/// Utility function to collapse whitespace runs to single spaces
-/// and strip leading/trailing whitespace.
-String collapseWhitespace(String string) {
-  var result = new StringBuffer();
-  var skipSpace = true;
-  for (var i = 0; i < string.length; i++) {
-    var character = string[i];
-    if (_isWhitespace(character)) {
-      if (!skipSpace) {
-        result.write(' ');
-        skipSpace = true;
-      }
-    } else {
-      result.write(character);
-      skipSpace = false;
-    }
-  }
-  return result.toString().trim();
-}
-
-bool _isWhitespace(String ch) =>
-    ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t';