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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 /** |
| 6 * Returns a matcher which matches maps containing the given [value]. |
| 7 */ |
| 8 Matcher containsValue(value) => new _ContainsValue(value); |
| 9 |
| 10 class _ContainsValue extends BaseMatcher { |
| 11 final _value; |
| 12 |
| 13 const _ContainsValue(this._value); |
| 14 |
| 15 bool matches(item) => item.containsValue(_value); |
| 16 Description describe(Description description) => |
| 17 description.add('contains value ').addDescriptionOf(_value); |
| 18 } |
| 19 |
| 20 /** |
| 21 * Returns a matcher which matches maps containing the key-value pair |
| 22 * with [key] => [value]. |
| 23 */ |
| 24 Matcher containsPair(key, value) => |
| 25 new _ContainsMapping(key, wrapMatcher(value)); |
| 26 |
| 27 class _ContainsMapping extends BaseMatcher { |
| 28 final _key; |
| 29 final Matcher _valueMatcher; |
| 30 |
| 31 const _ContainsMapping(this._key, Matcher this._valueMatcher); |
| 32 |
| 33 bool matches(item) => |
| 34 item.containsKey(_key) && _valueMatcher.matches(item[_key]); |
| 35 |
| 36 Description describe(Description description) { |
| 37 return description.add('contains pair ').addDescriptionOf(_key). |
| 38 add(' => ').addDescriptionOf(_valueMatcher); |
| 39 } |
| 40 |
| 41 Description describeMismatch(item, Description mismatchDescription) { |
| 42 if (!item.containsKey(_key)) { |
| 43 return mismatchDescription.addDescriptionOf(item). |
| 44 add("' doesn't contain key '").addDescriptionOf(_key); |
| 45 } else { |
| 46 return mismatchDescription.add(' contains key ').addDescriptionOf(_key). |
| 47 add(' but with value '); |
| 48 _valueMatcher.describeMismatch(item[_key], mismatchDescription); |
| 49 return mismatchDescription; |
| 50 } |
| 51 } |
| 52 } |
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