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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.iterable_matchers_test; | |
6 | |
7 import 'package:matcher/matcher.dart'; | |
8 import 'package:unittest/unittest.dart' show test, group; | |
9 | |
10 import 'test_utils.dart'; | |
11 | |
12 void main() { | |
13 initUtils(); | |
14 | |
15 test('isEmpty', () { | |
16 shouldPass([], isEmpty); | |
17 shouldFail([1], isEmpty, "Expected: empty Actual: [1]"); | |
18 }); | |
19 | |
20 test('contains', () { | |
21 var d = [1, 2]; | |
22 shouldPass(d, contains(1)); | |
23 shouldFail(d, contains(0), "Expected: contains <0> " | |
24 "Actual: [1, 2]"); | |
25 }); | |
26 | |
27 test('equals with matcher element', () { | |
28 var d = ['foo', 'bar']; | |
29 shouldPass(d, equals(['foo', startsWith('ba')])); | |
30 shouldFail(d, equals(['foo', endsWith('ba')]), | |
31 "Expected: ['foo', <a string ending with 'ba'>] " | |
32 "Actual: ['foo', 'bar'] " | |
33 "Which: does not match a string ending with 'ba' at location [1]"); | |
34 }); | |
35 | |
36 test('isIn', () { | |
37 var d = [1, 2]; | |
38 shouldPass(1, isIn(d)); | |
39 shouldFail(0, isIn(d), "Expected: is in [1, 2] Actual: <0>"); | |
40 }); | |
41 | |
42 test('everyElement', () { | |
43 var d = [1, 2]; | |
44 var e = [1, 1, 1]; | |
45 shouldFail(d, everyElement(1), | |
46 "Expected: every element(<1>) " | |
47 "Actual: [1, 2] " | |
48 "Which: has value <2> which doesn't match <1> at index 1"); | |
49 shouldPass(e, everyElement(1)); | |
50 }); | |
51 | |
52 test('nested everyElement', () { | |
53 var d = [['foo', 'bar'], ['foo'], []]; | |
54 var e = [['foo', 'bar'], ['foo'], 3, []]; | |
55 shouldPass(d, everyElement(anyOf(isEmpty, contains('foo')))); | |
56 shouldFail(d, everyElement(everyElement(equals('foo'))), | |
57 "Expected: every element(every element('foo')) " | |
58 "Actual: [['foo', 'bar'], ['foo'], []] " | |
59 "Which: has value ['foo', 'bar'] which has value 'bar' " | |
60 "which is different. Expected: foo Actual: bar ^ " | |
61 "Differ at offset 0 at index 1 at index 0"); | |
62 shouldFail(d, everyElement(allOf(hasLength(greaterThan(0)), | |
63 contains('foo'))), | |
64 "Expected: every element((an object with length of a value " | |
65 "greater than <0> and contains 'foo')) " | |
66 "Actual: [['foo', 'bar'], ['foo'], []] " | |
67 "Which: has value [] which has length of <0> at index 2"); | |
68 shouldFail(d, everyElement(allOf(contains('foo'), | |
69 hasLength(greaterThan(0)))), | |
70 "Expected: every element((contains 'foo' and " | |
71 "an object with length of a value greater than <0>)) " | |
72 "Actual: [['foo', 'bar'], ['foo'], []] " | |
73 "Which: has value [] which doesn't match (contains 'foo' and " | |
74 "an object with length of a value greater than <0>) at index 2"); | |
75 shouldFail(e, everyElement(allOf(contains('foo'), | |
76 hasLength(greaterThan(0)))), | |
77 "Expected: every element((contains 'foo' and an object with " | |
78 "length of a value greater than <0>)) " | |
79 "Actual: [['foo', 'bar'], ['foo'], 3, []] " | |
80 "Which: has value <3> which is not a string, map or iterable " | |
81 "at index 2"); | |
82 }); | |
83 | |
84 test('anyElement', () { | |
85 var d = [1, 2]; | |
86 var e = [1, 1, 1]; | |
87 shouldPass(d, anyElement(2)); | |
88 shouldFail(e, anyElement(2), | |
89 "Expected: some element <2> Actual: [1, 1, 1]"); | |
90 }); | |
91 | |
92 test('orderedEquals', () { | |
93 shouldPass([null], orderedEquals([null])); | |
94 var d = [1, 2]; | |
95 shouldPass(d, orderedEquals([1, 2])); | |
96 shouldFail(d, orderedEquals([2, 1]), | |
97 "Expected: equals [2, 1] ordered " | |
98 "Actual: [1, 2] " | |
99 "Which: was <1> instead of <2> at location [0]"); | |
100 }); | |
101 | |
102 test('unorderedEquals', () { | |
103 var d = [1, 2]; | |
104 shouldPass(d, unorderedEquals([2, 1])); | |
105 shouldFail(d, unorderedEquals([1]), | |
106 "Expected: equals [1] unordered " | |
107 "Actual: [1, 2] " | |
108 "Which: has too many elements (2 > 1)"); | |
109 shouldFail(d, unorderedEquals([3, 2, 1]), | |
110 "Expected: equals [3, 2, 1] unordered " | |
111 "Actual: [1, 2] " | |
112 "Which: has too few elements (2 < 3)"); | |
113 shouldFail(d, unorderedEquals([3, 1]), | |
114 "Expected: equals [3, 1] unordered " | |
115 "Actual: [1, 2] " | |
116 "Which: has no match for <3> at index 0"); | |
117 }); | |
118 | |
119 test('unorderedMatchess', () { | |
120 var d = [1, 2]; | |
121 shouldPass(d, unorderedMatches([2, 1])); | |
122 shouldPass(d, unorderedMatches([greaterThan(1), greaterThan(0)])); | |
123 shouldFail(d, unorderedMatches([greaterThan(0)]), | |
124 "Expected: matches [a value greater than <0>] unordered " | |
125 "Actual: [1, 2] " | |
126 "Which: has too many elements (2 > 1)"); | |
127 shouldFail(d, unorderedMatches([3, 2, 1]), | |
128 "Expected: matches [<3>, <2>, <1>] unordered " | |
129 "Actual: [1, 2] " | |
130 "Which: has too few elements (2 < 3)"); | |
131 shouldFail(d, unorderedMatches([3, 1]), | |
132 "Expected: matches [<3>, <1>] unordered " | |
133 "Actual: [1, 2] " | |
134 "Which: has no match for <3> at index 0"); | |
135 shouldFail(d, unorderedMatches([greaterThan(3), greaterThan(0)]), | |
136 "Expected: matches [a value greater than <3>, a value greater than " | |
137 "<0>] unordered " | |
138 "Actual: [1, 2] " | |
139 "Which: has no match for a value greater than <3> at index 0"); | |
140 }); | |
141 | |
142 test('pairwise compare', () { | |
143 var c = [1, 2]; | |
144 var d = [1, 2, 3]; | |
145 var e = [1, 4, 9]; | |
146 shouldFail('x', pairwiseCompare(e, (e,a) => a <= e, | |
147 "less than or equal"), | |
148 "Expected: pairwise less than or equal [1, 4, 9] " | |
149 "Actual: 'x' " | |
150 "Which: is not an Iterable"); | |
151 shouldFail(c, pairwiseCompare(e, (e,a) => a <= e, "less than or equal"), | |
152 "Expected: pairwise less than or equal [1, 4, 9] " | |
153 "Actual: [1, 2] " | |
154 "Which: has length 2 instead of 3"); | |
155 shouldPass(d, pairwiseCompare(e, (e,a) => a <= e, "less than or equal")); | |
156 shouldFail(d, pairwiseCompare(e, (e,a) => a < e, "less than"), | |
157 "Expected: pairwise less than [1, 4, 9] " | |
158 "Actual: [1, 2, 3] " | |
159 "Which: has <1> which is not less than <1> at index 0"); | |
160 shouldPass(d, pairwiseCompare(e, (e,a) => a * a == e, "square root of")); | |
161 shouldFail(d, pairwiseCompare(e, (e,a) => a + a == e, "double"), | |
162 "Expected: pairwise double [1, 4, 9] " | |
163 "Actual: [1, 2, 3] " | |
164 "Which: has <1> which is not double <1> at index 0"); | |
165 }); | |
166 } | |
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