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1 // Copyright 2013 Google Inc. All Rights Reserved. | 1 // Copyright 2013 Google Inc. All Rights Reserved. |
2 // | 2 // |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
4 // you may not use this file except in compliance with the License. | 4 // you may not use this file except in compliance with the License. |
5 // You may obtain a copy of the License at | 5 // You may obtain a copy of the License at |
6 // | 6 // |
7 // http://www.apache.org/licenses/LICENSE-2.0 | 7 // http://www.apache.org/licenses/LICENSE-2.0 |
8 // | 8 // |
9 // Unless required by applicable law or agreed to in writing, software | 9 // Unless required by applicable law or agreed to in writing, software |
10 // distributed under the License is distributed on an "AS IS" BASIS, | 10 // distributed under the License is distributed on an "AS IS" BASIS, |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 // See the License for the specific language governing permissions and | 12 // See the License for the specific language governing permissions and |
13 // limitations under the License. | 13 // limitations under the License. |
14 | 14 |
15 library quiver.iterables.enumerate_test; | 15 library quiver.iterables.enumerate_test; |
16 | 16 |
17 import 'package:test/test.dart'; | 17 import 'package:test/test.dart'; |
18 import 'package:quiver/iterables.dart'; | 18 import 'package:quiver_iterables/iterables.dart'; |
19 | 19 |
20 main() { | 20 main() { |
21 group('enumerate', () { | 21 group('enumerate', () { |
22 test("should add indices to its argument", () { | 22 test("should add indices to its argument", () { |
23 var e = enumerate(['a', 'b', 'c']); | 23 var e = enumerate(['a', 'b', 'c']); |
24 expect(e.map((v) => v.index), [0, 1, 2]); | 24 expect(e.map((v) => v.index), [0, 1, 2]); |
25 expect(e.map((v) => v.value), ['a', 'b', 'c']); | 25 expect(e.map((v) => v.value), ['a', 'b', 'c']); |
26 }); | 26 }); |
27 | 27 |
28 test("should return an empty iterable given an empty iterable", () { | 28 test("should return an empty iterable given an empty iterable", () { |
29 expect(enumerate([]), []); | 29 expect(enumerate([]), []); |
30 }); | 30 }); |
31 | 31 |
32 test("should add indices to its argument", () { | 32 test("should add indices to its argument", () { |
33 var e = enumerate(['a', 'b', 'c']); | 33 var e = enumerate(['a', 'b', 'c']); |
34 expect(e.map((v) => v.index), [0, 1, 2]); | 34 expect(e.map((v) => v.index), [0, 1, 2]); |
35 expect(e.map((v) => v.index), [ 0, 1, 2 ], | 35 expect(e.map((v) => v.index), [0, 1, 2], |
36 reason: 'should enumerate to the same values a second time'); | 36 reason: 'should enumerate to the same values a second time'); |
37 }); | 37 }); |
38 | 38 |
39 test("first", () { | 39 test("first", () { |
40 var e = enumerate(['a', 'b', 'c']); | 40 var e = enumerate(['a', 'b', 'c']); |
41 expect(e.first.value, 'a'); | 41 expect(e.first.value, 'a'); |
42 expect(e.first.index, 0); | 42 expect(e.first.index, 0); |
43 expect(e.first.value, 'a'); | 43 expect(e.first.value, 'a'); |
44 }); | 44 }); |
45 | 45 |
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77 var e1 = enumerate(list); | 77 var e1 = enumerate(list); |
78 var e2 = enumerate(list); | 78 var e2 = enumerate(list); |
79 for (int i = 0; i < 2; i++) { | 79 for (int i = 0; i < 2; i++) { |
80 expect(e1.elementAt(i), e2.elementAt(i)); | 80 expect(e1.elementAt(i), e2.elementAt(i)); |
81 expect(e1.elementAt(i).hashCode, e1.elementAt(i).hashCode); | 81 expect(e1.elementAt(i).hashCode, e1.elementAt(i).hashCode); |
82 expect(identical(e1.elementAt(i), e2.elementAt(i)), isFalse); | 82 expect(identical(e1.elementAt(i), e2.elementAt(i)), isFalse); |
83 } | 83 } |
84 }); | 84 }); |
85 }); | 85 }); |
86 } | 86 } |
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