OLD | NEW |
1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /// The mirror matchers library provides some additional matchers that | 5 /// The mirror matchers library provides some additional matchers that |
6 /// make use of `dart:mirrors`. | 6 /// make use of `dart:mirrors`. |
7 library matcher.mirror_matchers; | 7 library matcher.mirror_matchers; |
8 | 8 |
9 import 'dart:mirrors'; | 9 import 'dart:mirrors'; |
10 | 10 |
11 import 'matcher.dart'; | 11 import 'matcher.dart'; |
12 | 12 |
13 /// Returns a matcher that checks if a class instance has a property | 13 /// Returns a matcher that checks if a class instance has a property |
14 /// with name [name], and optionally, if that property in turn satisfies | 14 /// with name [name], and optionally, if that property in turn satisfies |
15 /// a [matcher]. | 15 /// a [matcher]. |
16 Matcher hasProperty(String name, [matcher]) => | 16 Matcher hasProperty(String name, [matcher]) => |
17 new _HasProperty(name, matcher == null ? null : wrapMatcher(matcher)); | 17 new _HasProperty(name, matcher == null ? null : wrapMatcher(matcher)); |
18 | 18 |
19 class _HasProperty extends Matcher { | 19 class _HasProperty extends Matcher { |
20 final String _name; | 20 final String _name; |
21 final Matcher _matcher; | 21 final Matcher _matcher; |
22 | 22 |
23 const _HasProperty(this._name, [this._matcher]); | 23 const _HasProperty(this._name, [this._matcher]); |
24 | 24 |
25 bool matches(item, Map matchState) { | 25 bool matches(item, Map matchState) { |
26 var mirror = reflect(item); | 26 var mirror = reflect(item); |
27 var classMirror = mirror.type; | 27 var classMirror = mirror.type; |
28 var symbol = new Symbol(_name); | 28 var symbol = new Symbol(_name); |
29 var candidate = classMirror.declarations[symbol]; | 29 var candidate = classMirror.declarations[symbol]; |
30 if (candidate == null) { | 30 if (candidate == null) { |
31 addStateInfo(matchState, {'reason': 'has no property named "$_name"'}); | 31 addStateInfo(matchState, {'reason': 'has no property named "$_name"'}); |
32 return false; | 32 return false; |
33 } | 33 } |
34 bool isInstanceField = candidate is VariableMirror && !candidate.isStatic; | 34 bool isInstanceField = candidate is VariableMirror && !candidate.isStatic; |
35 bool isInstanceGetter = | 35 bool isInstanceGetter = |
36 candidate is MethodMirror && candidate.isGetter && !candidate.isStatic; | 36 candidate is MethodMirror && candidate.isGetter && !candidate.isStatic; |
37 if (!(isInstanceField || isInstanceGetter)) { | 37 if (!(isInstanceField || isInstanceGetter)) { |
38 addStateInfo(matchState, {'reason': | 38 addStateInfo(matchState, { |
39 'has a member named "$_name", but it is not an instance property'}); | 39 'reason': |
| 40 'has a member named "$_name", but it is not an instance property' |
| 41 }); |
40 return false; | 42 return false; |
41 } | 43 } |
42 if (_matcher == null) return true; | 44 if (_matcher == null) return true; |
43 var result = mirror.getField(symbol); | 45 var result = mirror.getField(symbol); |
44 var resultMatches = _matcher.matches(result.reflectee, matchState); | 46 var resultMatches = _matcher.matches(result.reflectee, matchState); |
45 if (!resultMatches) { | 47 if (!resultMatches) { |
46 addStateInfo(matchState, {'value': result.reflectee}); | 48 addStateInfo(matchState, {'value': result.reflectee}); |
47 } | 49 } |
48 return resultMatches; | 50 return resultMatches; |
49 } | 51 } |
50 | 52 |
51 Description describe(Description description) { | 53 Description describe(Description description) { |
52 description.add('has property "$_name"'); | 54 description.add('has property "$_name"'); |
53 if (_matcher != null) { | 55 if (_matcher != null) { |
54 description.add(' which matches ').addDescriptionOf(_matcher); | 56 description.add(' which matches ').addDescriptionOf(_matcher); |
55 } | 57 } |
56 return description; | 58 return description; |
57 } | 59 } |
58 | 60 |
59 Description describeMismatch(item, Description mismatchDescription, | 61 Description describeMismatch( |
60 Map matchState, bool verbose) { | 62 item, Description mismatchDescription, Map matchState, bool verbose) { |
61 var reason = matchState == null ? null : matchState['reason']; | 63 var reason = matchState == null ? null : matchState['reason']; |
62 if (reason != null) { | 64 if (reason != null) { |
63 mismatchDescription.add(reason); | 65 mismatchDescription.add(reason); |
64 } else { | 66 } else { |
65 mismatchDescription.add('has property "$_name" with value '). | 67 mismatchDescription |
66 addDescriptionOf(matchState['value']); | 68 .add('has property "$_name" with value ') |
| 69 .addDescriptionOf(matchState['value']); |
67 var innerDescription = new StringDescription(); | 70 var innerDescription = new StringDescription(); |
68 _matcher.describeMismatch(matchState['value'], innerDescription, | 71 _matcher.describeMismatch( |
69 matchState['state'], verbose); | 72 matchState['value'], innerDescription, matchState['state'], verbose); |
70 if (innerDescription.length > 0) { | 73 if (innerDescription.length > 0) { |
71 mismatchDescription.add(' which ').add(innerDescription.toString()); | 74 mismatchDescription.add(' which ').add(innerDescription.toString()); |
72 } | 75 } |
73 } | 76 } |
74 return mismatchDescription; | 77 return mismatchDescription; |
75 } | 78 } |
76 } | 79 } |
OLD | NEW |