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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library matcher.operator_matchers; | |
| 6 | |
| 7 import 'interfaces.dart'; | |
| 8 import 'util.dart'; | |
| 9 | |
| 10 /// This returns a matcher that inverts [matcher] to its logical negation. | |
| 11 Matcher isNot(matcher) => new _IsNot(wrapMatcher(matcher)); | |
| 12 | |
| 13 class _IsNot extends Matcher { | |
| 14 final Matcher _matcher; | |
| 15 | |
| 16 const _IsNot(this._matcher); | |
| 17 | |
| 18 bool matches(item, Map matchState) => !_matcher.matches(item, matchState); | |
| 19 | |
| 20 Description describe(Description description) => | |
| 21 description.add('not ').addDescriptionOf(_matcher); | |
| 22 } | |
| 23 | |
| 24 /// This returns a matcher that matches if all of the matchers passed as | |
| 25 /// arguments (up to 7) match. | |
| 26 /// | |
| 27 /// Instead of passing the matchers separately they can be passed as a single | |
| 28 /// List argument. Any argument that is not a matcher is implicitly wrapped in a | |
| 29 /// Matcher to check for equality. | |
| 30 Matcher allOf(arg0, | |
| 31 [arg1 = null, | |
| 32 arg2 = null, | |
| 33 arg3 = null, | |
| 34 arg4 = null, | |
| 35 arg5 = null, | |
| 36 arg6 = null]) { | |
| 37 return new _AllOf(_wrapArgs(arg0, arg1, arg2, arg3, arg4, arg5, arg6)); | |
| 38 } | |
| 39 | |
| 40 class _AllOf extends Matcher { | |
| 41 final List<Matcher> _matchers; | |
| 42 | |
| 43 const _AllOf(this._matchers); | |
| 44 | |
| 45 bool matches(item, Map matchState) { | |
| 46 for (var matcher in _matchers) { | |
| 47 if (!matcher.matches(item, matchState)) { | |
| 48 addStateInfo(matchState, {'matcher': matcher}); | |
| 49 return false; | |
| 50 } | |
| 51 } | |
| 52 return true; | |
| 53 } | |
| 54 | |
| 55 Description describeMismatch(item, Description mismatchDescription, | |
| 56 Map matchState, bool verbose) { | |
| 57 var matcher = matchState['matcher']; | |
| 58 matcher.describeMismatch(item, mismatchDescription, | |
| 59 matchState['state'], verbose); | |
| 60 return mismatchDescription; | |
| 61 } | |
| 62 | |
| 63 Description describe(Description description) => | |
| 64 description.addAll('(', ' and ', ')', _matchers); | |
| 65 } | |
| 66 | |
| 67 /// Matches if any of the given matchers evaluate to true. | |
| 68 /// | |
| 69 /// The arguments can be a set of matchers as separate parameters | |
| 70 /// (up to 7), or a List of matchers. | |
| 71 /// | |
| 72 /// The matchers are evaluated from left to right using short-circuit | |
| 73 /// evaluation, so evaluation stops as soon as a matcher returns true. | |
| 74 /// | |
| 75 /// Any argument that is not a matcher is implicitly wrapped in a | |
| 76 /// Matcher to check for equality. | |
| 77 Matcher anyOf(arg0, | |
| 78 [arg1 = null, | |
| 79 arg2 = null, | |
| 80 arg3 = null, | |
| 81 arg4 = null, | |
| 82 arg5 = null, | |
| 83 arg6 = null]) { | |
| 84 return new _AnyOf(_wrapArgs(arg0, arg1, arg2, arg3, arg4, arg5, arg6)); | |
| 85 } | |
| 86 | |
| 87 class _AnyOf extends Matcher { | |
| 88 final List<Matcher> _matchers; | |
| 89 | |
| 90 const _AnyOf(this._matchers); | |
| 91 | |
| 92 bool matches(item, Map matchState) { | |
| 93 for (var matcher in _matchers) { | |
| 94 if (matcher.matches(item, matchState)) { | |
| 95 return true; | |
| 96 } | |
| 97 } | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 Description describe(Description description) => | |
| 102 description.addAll('(', ' or ', ')', _matchers); | |
| 103 } | |
| 104 | |
| 105 List<Matcher> _wrapArgs(arg0, arg1, arg2, arg3, arg4, arg5, arg6) { | |
| 106 Iterable<Matcher> matchers; | |
| 107 if (arg0 is List) { | |
| 108 if (arg1 != null || arg2 != null || arg3 != null || arg4 != null || | |
| 109 arg5 != null || arg6 != null) { | |
| 110 throw new ArgumentError('If arg0 is a List, all other arguments must be' | |
| 111 ' null.'); | |
| 112 } | |
| 113 | |
| 114 matchers = arg0; | |
| 115 } else { | |
| 116 matchers = [arg0, arg1, arg2, arg3, arg4, arg5, arg6] | |
| 117 .where((e) => e != null); | |
| 118 } | |
| 119 | |
| 120 return matchers | |
| 121 .map((e) => wrapMatcher(e)) | |
| 122 .toList(); | |
| 123 } | |
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Chromium Code Reviews
Issue 807193003:
Re-apply "Remove unittest and matcher from the repo." (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart