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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 | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 library mock.times_matcher; | |
6 | |
7 import 'package:matcher/matcher.dart'; | |
8 | |
9 /** | |
10 * [_TimesMatcher]s are used to make assertions about the number of | |
11 * times a method was called. | |
12 */ | |
13 class _TimesMatcher extends Matcher { | |
14 final int min, max; | |
15 | |
16 const _TimesMatcher(this.min, [this.max = -1]); | |
17 | |
18 bool matches(logList, Map matchState) => logList.length >= min && | |
19 (max < 0 || logList.length <= max); | |
20 | |
21 Description describe(Description description) { | |
22 description.add('to be called '); | |
23 if (max < 0) { | |
24 description.add('at least $min'); | |
25 } else if (max == min) { | |
26 description.add('$max'); | |
27 } else if (min == 0) { | |
28 description.add('at most $max'); | |
29 } else { | |
30 description.add('between $min and $max'); | |
31 } | |
32 return description.add(' times'); | |
33 } | |
34 | |
35 Description describeMismatch(logList, Description mismatchDescription, | |
36 Map matchState, bool verbose) => | |
37 mismatchDescription.add('was called ${logList.length} times'); | |
38 } | |
39 | |
40 /** [happenedExactly] matches an exact number of calls. */ | |
41 Matcher happenedExactly(count) { | |
42 return new _TimesMatcher(count, count); | |
43 } | |
44 | |
45 /** [happenedAtLeast] matches a minimum number of calls. */ | |
46 Matcher happenedAtLeast(count) { | |
47 return new _TimesMatcher(count); | |
48 } | |
49 | |
50 /** [happenedAtMost] matches a maximum number of calls. */ | |
51 Matcher happenedAtMost(count) { | |
52 return new _TimesMatcher(0, count); | |
53 } | |
54 | |
55 /** [neverHappened] matches zero calls. */ | |
56 const Matcher neverHappened = const _TimesMatcher(0, 0); | |
57 | |
58 /** [happenedOnce] matches exactly one call. */ | |
59 const Matcher happenedOnce = const _TimesMatcher(1, 1); | |
60 | |
61 /** [happenedAtLeastOnce] matches one or more calls. */ | |
62 const Matcher happenedAtLeastOnce = const _TimesMatcher(1); | |
63 | |
64 /** [happenedAtMostOnce] matches zero or one call. */ | |
65 const Matcher happenedAtMostOnce = const _TimesMatcher(0, 1); | |
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