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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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