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Unified Diff: lib/unittest/collection_matchers.dart

Issue 10836241: Move unittest from lib to pkg. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 4 months ago
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Index: lib/unittest/collection_matchers.dart
===================================================================
--- lib/unittest/collection_matchers.dart (revision 10655)
+++ lib/unittest/collection_matchers.dart (working copy)
@@ -1,199 +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.
-
-/**
- * Returns a matcher which matches [Collection]s in which all elements
- * match the given [matcher].
- */
-Matcher everyElement(matcher) => new _EveryElement(wrapMatcher(matcher));
-
-class _EveryElement extends _CollectionMatcher {
- Matcher _matcher;
-
- _EveryElement(Matcher this._matcher);
-
- bool matches(item, MatchState matchState) {
- if (item is! Iterable) {
- return false;
- }
- var i = 0;
- for (var element in item) {
- if (!_matcher.matches(element, matchState)) {
- matchState.state = {
- 'index': i,
- 'element': element,
- 'state': matchState.state
- };
- return false;
- }
- ++i;
- }
- return true;
- }
-
- Description describe(Description description) =>
- description.add('every element ').addDescriptionOf(_matcher);
-
- Description describeMismatch(item, Description mismatchDescription,
- MatchState matchState, bool verbose) {
- if (matchState.state != null) {
- var index = matchState.state['index'];
- var element = matchState.state['element'];
- return _matcher.describeMismatch(element, mismatchDescription,
- matchState.state['state'], verbose).add(' at position $index');
- }
- return super.describeMismatch(item, mismatchDescription,
- matchState, verbose);
- }
-}
-
-/**
- * Returns a matcher which matches [Collection]s in which at least one
- * element matches the given [matcher].
- */
-Matcher someElement(matcher) => new _SomeElement(wrapMatcher(matcher));
-
-class _SomeElement extends _CollectionMatcher {
- Matcher _matcher;
-
- _SomeElement(this._matcher);
-
- bool matches(item, MatchState matchState) {
- return item.some( (e) => _matcher.matches(e, matchState) );
- }
-
- Description describe(Description description) =>
- description.add('some element ').addDescriptionOf(_matcher);
-}
-
-/**
- * Returns a matcher which matches [Iterable]s that have the same
- * length and the same elements as [expected], and in the same order.
- * This is equivalent to equals but does not recurse.
- */
-
-Matcher orderedEquals(Iterable expected) => new _OrderedEquals(expected);
-
-class _OrderedEquals extends BaseMatcher {
- final Iterable _expected;
- Matcher _matcher;
-
- _OrderedEquals(this._expected) {
- _matcher = equals(_expected, 1);
- }
-
- bool matches(item, MatchState matchState) =>
- (item is Iterable) && _matcher.matches(item, matchState);
-
- Description describe(Description description) =>
- description.add('equals ').addDescriptionOf(_expected).add(' ordered');
-
- Description describeMismatch(item, Description mismatchDescription,
- MatchState matchState, bool verbose) {
- if (item is !Iterable) {
- return mismatchDescription.add('not an Iterable');
- } else {
- return _matcher.describeMismatch(item, mismatchDescription,
- matchState, verbose);
- }
- }
-}
-/**
- * Returns a matcher which matches [Iterable]s that have the same
- * length and the same elements as [expected], but not necessarily in
- * the same order. Note that this is O(n^2) so should only be used on
- * small objects.
- */
-Matcher unorderedEquals(Iterable expected) =>
- new _UnorderedEquals(expected);
-
-class _UnorderedEquals extends BaseMatcher {
- Iterable _expected;
-
- _UnorderedEquals(Iterable this._expected);
-
- String _test(item) {
- if (item is !Iterable) {
- return 'not iterable';
- }
- // Check the lengths are the same.
- var expectedLength = 0;
- if (_expected is Collection) {
- Collection cast = _expected; // "_expected as Collection"
- expectedLength = cast.length;
- } else {
- for (var element in _expected) {
- ++expectedLength;
- }
- }
- var actualLength = 0;
- if (item is Collection) {
- actualLength = item.length;
- } else {
- for (var element in item) {
- ++actualLength;
- }
- }
- if (expectedLength > actualLength) {
- return 'has too few elements (${actualLength} < ${expectedLength})';
- } else if (expectedLength < actualLength) {
- return 'has too many elements (${actualLength} > ${expectedLength})';
- }
- List<bool> matched = new List<bool>(actualLength);
- for (var i = 0; i < actualLength; i++) {
- matched[i] = false;
- }
- var expectedPosition = 0;
- for (var expectedElement in _expected) {
- var actualPosition = 0;
- var gotMatch = false;
- for (var actualElement in item) {
- if (!matched[actualPosition]) {
- if (expectedElement == actualElement) {
- matched[actualPosition] = gotMatch = true;
- break;
- }
- }
- ++actualPosition;
- }
- if (!gotMatch) {
- Description reason = new StringDescription();
- reason.add('has no match for element ').
- addDescriptionOf(expectedElement).
- add(' at position ${expectedPosition}');
- return reason.toString();
- }
- ++expectedPosition;
- }
- return null;
- }
-
- bool matches(item, MatchState mismatchState) => (_test(item) == null);
-
- Description describe(Description description) =>
- description.add('equals ').addDescriptionOf(_expected).add(' unordered');
-
- Description describeMismatch(item, Description mismatchDescription,
- MatchState matchState, bool verbose) =>
- mismatchDescription.add(_test(item));
-}
-
-/**
- * Collection matchers match against [Collection]s. We add this intermediate
- * class to give better mismatch error messages than the base Matcher class.
- */
-/* abstract */ class _CollectionMatcher extends BaseMatcher {
- const _CollectionMatcher();
- Description describeMismatch(item, Description mismatchDescription,
- MatchState matchState, bool verbose) {
- if (item is !Collection) {
- return mismatchDescription.
- addDescriptionOf(item).
- add(' not a collection');
- } else {
- return super.describeMismatch(item, mismatchDescription, matchState,
- verbose);
- }
- }
-}
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