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Side by Side Diff: tests/corelib/iterable_skip_test.dart

Issue 12041045: List.mappedBy/skip/take returns a List. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Address comments. Created 7 years, 11 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 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 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 main() { 5 main() {
6 List<int> list1 = <int>[1, 2, 3]; 6 List<int> list1 = <int>[1, 2, 3];
7 List<int> list2 = const <int>[4, 5]; 7 List<int> list2 = const <int>[4, 5];
8 List<String> list3 = <String>[]; 8 List<String> list3 = <String>[];
9 Set<int> set1 = new Set<int>(); 9 Set<int> set1 = new Set<int>();
10 set1..add(11) 10 set1..add(11)
11 ..add(12) 11 ..add(12)
12 ..add(13); 12 ..add(13);
13 Set set2 = new Set(); 13 Set set2 = new Set();
14 14
15 Iterable<int> skip0 = list1.skip(0); 15 Iterable<int> skip0 = list1.skip(0);
16 Expect.isTrue(skip0 is List);
16 Iterator<int> it = skip0.iterator; 17 Iterator<int> it = skip0.iterator;
17 Expect.isNull(it.current); 18 Expect.isNull(it.current);
18 Expect.isTrue(it.moveNext()); 19 Expect.isTrue(it.moveNext());
19 Expect.equals(1, it.current); 20 Expect.equals(1, it.current);
20 Expect.isTrue(it.moveNext()); 21 Expect.isTrue(it.moveNext());
21 Expect.equals(2, it.current); 22 Expect.equals(2, it.current);
22 Expect.isTrue(it.moveNext()); 23 Expect.isTrue(it.moveNext());
23 Expect.equals(3, it.current); 24 Expect.equals(3, it.current);
24 Expect.isFalse(it.moveNext()); 25 Expect.isFalse(it.moveNext());
25 Expect.isNull(it.current); 26 Expect.isNull(it.current);
26 27
27 Iterable<int> skip1 = list1.skip(1); 28 Iterable<int> skip1 = list1.skip(1);
29 Expect.isTrue(skip1 is List);
30 Expect.isTrue(skip1.skip(2).skip(1) is List);
28 it = skip1.iterator; 31 it = skip1.iterator;
29 Expect.isNull(it.current); 32 Expect.isNull(it.current);
30 Expect.isTrue(it.moveNext()); 33 Expect.isTrue(it.moveNext());
31 Expect.equals(2, it.current); 34 Expect.equals(2, it.current);
32 Expect.isTrue(it.moveNext()); 35 Expect.isTrue(it.moveNext());
33 Expect.equals(3, it.current); 36 Expect.equals(3, it.current);
34 Expect.isFalse(it.moveNext()); 37 Expect.isFalse(it.moveNext());
35 Expect.isNull(it.current); 38 Expect.isNull(it.current);
36 39
37 Iterable<int> skip2 = list1.skip(2); 40 Iterable<int> skip2 = list1.skip(2);
41 Expect.isTrue(skip2 is List);
42 Expect.isTrue(skip2.skip(2).skip(1) is List);
38 it = skip2.iterator; 43 it = skip2.iterator;
39 Expect.isNull(it.current); 44 Expect.isNull(it.current);
40 Expect.isTrue(it.moveNext()); 45 Expect.isTrue(it.moveNext());
41 Expect.equals(3, it.current); 46 Expect.equals(3, it.current);
42 Expect.isFalse(it.moveNext()); 47 Expect.isFalse(it.moveNext());
43 Expect.isNull(it.current); 48 Expect.isNull(it.current);
44 49
45 Iterable<int> skip3 = list1.skip(3); 50 Iterable<int> skip3 = list1.skip(3);
51 Expect.isTrue(skip3 is List);
52 Expect.isTrue(skip3.skip(2).skip(1) is List);
46 it = skip3.iterator; 53 it = skip3.iterator;
47 Expect.isNull(it.current); 54 Expect.isNull(it.current);
48 Expect.isFalse(it.moveNext()); 55 Expect.isFalse(it.moveNext());
49 Expect.isNull(it.current); 56 Expect.isNull(it.current);
50 57
51 Iterable<int> skip4 = list1.skip(4); 58 Iterable<int> skip4 = list1.skip(4);
59 Expect.isTrue(skip4 is List);
60 Expect.isTrue(skip4.skip(2).skip(1) is List);
52 it = skip4.iterator; 61 it = skip4.iterator;
53 Expect.isNull(it.current); 62 Expect.isNull(it.current);
54 Expect.isFalse(it.moveNext()); 63 Expect.isFalse(it.moveNext());
55 Expect.isNull(it.current); 64 Expect.isNull(it.current);
56 65
57 skip0 = list1.skip(0); 66 skip0 = list1.skip(0);
58 skip1 = skip0.skip(1); 67 skip1 = skip0.skip(1);
59 skip2 = skip1.skip(1); 68 skip2 = skip1.skip(1);
60 skip3 = skip2.skip(1); 69 skip3 = skip2.skip(1);
61 skip4 = skip3.skip(1); 70 skip4 = skip3.skip(1);
(...skipping 24 matching lines...) Expand all
86 it = skip3.iterator; 95 it = skip3.iterator;
87 Expect.isNull(it.current); 96 Expect.isNull(it.current);
88 Expect.isFalse(it.moveNext()); 97 Expect.isFalse(it.moveNext());
89 Expect.isNull(it.current); 98 Expect.isNull(it.current);
90 it = skip4.iterator; 99 it = skip4.iterator;
91 Expect.isNull(it.current); 100 Expect.isNull(it.current);
92 Expect.isFalse(it.moveNext()); 101 Expect.isFalse(it.moveNext());
93 Expect.isNull(it.current); 102 Expect.isNull(it.current);
94 103
95 skip0 = list2.skip(0); 104 skip0 = list2.skip(0);
105 Expect.isTrue(skip0 is List);
106 Expect.isTrue(skip0.skip(2).skip(1) is List);
96 it = skip0.iterator; 107 it = skip0.iterator;
97 Expect.isNull(it.current); 108 Expect.isNull(it.current);
98 Expect.isTrue(it.moveNext()); 109 Expect.isTrue(it.moveNext());
99 Expect.equals(4, it.current); 110 Expect.equals(4, it.current);
100 Expect.isTrue(it.moveNext()); 111 Expect.isTrue(it.moveNext());
101 Expect.equals(5, it.current); 112 Expect.equals(5, it.current);
102 Expect.isFalse(it.moveNext()); 113 Expect.isFalse(it.moveNext());
103 Expect.isNull(it.current); 114 Expect.isNull(it.current);
104 115
105 skip1 = list2.skip(1); 116 skip1 = list2.skip(1);
117 Expect.isTrue(skip1 is List);
118 Expect.isTrue(skip1.skip(2).skip(1) is List);
106 it = skip1.iterator; 119 it = skip1.iterator;
107 Expect.isNull(it.current); 120 Expect.isNull(it.current);
108 Expect.isTrue(it.moveNext()); 121 Expect.isTrue(it.moveNext());
109 Expect.equals(5, it.current); 122 Expect.equals(5, it.current);
110 Expect.isFalse(it.moveNext()); 123 Expect.isFalse(it.moveNext());
111 Expect.isNull(it.current); 124 Expect.isNull(it.current);
112 125
113 skip2 = list2.skip(2); 126 skip2 = list2.skip(2);
127 Expect.isTrue(skip2 is List);
128 Expect.isTrue(skip2.skip(2).skip(1) is List);
114 it = skip2.iterator; 129 it = skip2.iterator;
115 Expect.isNull(it.current); 130 Expect.isNull(it.current);
116 Expect.isFalse(it.moveNext()); 131 Expect.isFalse(it.moveNext());
117 Expect.isNull(it.current); 132 Expect.isNull(it.current);
118 133
119 skip3 = list2.skip(3); 134 skip3 = list2.skip(3);
135 Expect.isTrue(skip3 is List);
136 Expect.isTrue(skip3.skip(2).skip(1) is List);
120 it = skip3.iterator; 137 it = skip3.iterator;
121 Expect.isNull(it.current); 138 Expect.isNull(it.current);
122 Expect.isFalse(it.moveNext()); 139 Expect.isFalse(it.moveNext());
123 Expect.isNull(it.current); 140 Expect.isNull(it.current);
124 141
125 Iterable<String> skip02 = list3.skip(0); 142 Iterable<String> skip02 = list3.skip(0);
143 Expect.isTrue(skip02 is List);
144 Expect.isTrue(skip02.skip(2).skip(1) is List);
126 Iterator<String> it2 = skip02.iterator; 145 Iterator<String> it2 = skip02.iterator;
127 Expect.isNull(it2.current); 146 Expect.isNull(it2.current);
128 Expect.isFalse(it2.moveNext()); 147 Expect.isFalse(it2.moveNext());
129 Expect.isNull(it2.current); 148 Expect.isNull(it2.current);
130 149
131 Iterable<String> skip12 = list3.skip(1); 150 Iterable<String> skip12 = list3.skip(1);
151 Expect.isTrue(skip12 is List);
152 Expect.isTrue(skip12.skip(2).skip(1) is List);
132 it2 = skip12.iterator; 153 it2 = skip12.iterator;
133 Expect.isNull(it2.current); 154 Expect.isNull(it2.current);
134 Expect.isFalse(it2.moveNext()); 155 Expect.isFalse(it2.moveNext());
135 Expect.isNull(it2.current); 156 Expect.isNull(it2.current);
136 157
137 skip0 = set1.skip(0); 158 skip0 = set1.skip(0);
138 List<int> copied = skip0.toList(); 159 List<int> copied = skip0.toList();
139 Expect.equals(3, copied.length); 160 Expect.equals(3, copied.length);
140 Expect.isTrue(set1.contains(copied[0])); 161 Expect.isTrue(set1.contains(copied[0]));
141 Expect.isTrue(set1.contains(copied[1])); 162 Expect.isTrue(set1.contains(copied[1]));
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after
197 Expect.isNull(it.current); 218 Expect.isNull(it.current);
198 Expect.isFalse(it.moveNext()); 219 Expect.isFalse(it.moveNext());
199 Expect.isNull(it.current); 220 Expect.isNull(it.current);
200 221
201 skip1 = set2.skip(1); 222 skip1 = set2.skip(1);
202 it = skip1.iterator; 223 it = skip1.iterator;
203 Expect.isNull(it.current); 224 Expect.isNull(it.current);
204 Expect.isFalse(it.moveNext()); 225 Expect.isFalse(it.moveNext());
205 Expect.isNull(it.current); 226 Expect.isNull(it.current);
206 } 227 }
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