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Side by Side Diff: packages/quiver_iterables/test/partition_test.dart

Issue 2119523002: Added full js & js_util packages (Closed) Base URL: git@github.com:dart-lang/observatory_pub_packages.git@master
Patch Set: Created 4 years, 5 months ago
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1 // Copyright 2014 Google Inc. All Rights Reserved. 1 // Copyright 2014 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.partition_test; 15 library quiver.iterables.partition_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('partition', () { 21 group('partition', () {
22 test('should throw when size is <= 0', () { 22 test('should throw when size is <= 0', () {
23 expect(() => partition([1, 2, 3], 0), throwsArgumentError); 23 expect(() => partition([1, 2, 3], 0), throwsArgumentError);
24 expect(() => partition([1, 2, 3], -1), throwsArgumentError); 24 expect(() => partition([1, 2, 3], -1), throwsArgumentError);
25 }); 25 });
26 26
27 test('should return an empty list for empty input iterable', () { 27 test('should return an empty list for empty input iterable', () {
28 expect(partition([], 5), equals([])); 28 expect(partition([], 5), equals([]));
29 }); 29 });
30 30
31 test('should return one partition if partition size < input size', () { 31 test('should return one partition if partition size < input size', () {
32 var it = partition([1, 2, 3], 5).iterator; 32 var it = partition([1, 2, 3], 5).iterator;
33 expect(it.moveNext(), isTrue); 33 expect(it.moveNext(), isTrue);
34 expect(it.current, equals([1, 2, 3])); 34 expect(it.current, equals([1, 2, 3]));
35 expect(it.moveNext(), isFalse); 35 expect(it.moveNext(), isFalse);
36 expect(it.current, isNull); 36 expect(it.current, isNull);
37 }); 37 });
38 38
39 test('should return one partition if partition size == input size', () { 39 test('should return one partition if partition size == input size', () {
40 var it = partition([1, 2, 3, 4, 5], 5).iterator; 40 var it = partition([1, 2, 3, 4, 5], 5).iterator;
41 expect(it.moveNext(), isTrue); 41 expect(it.moveNext(), isTrue);
42 expect(it.current, equals([1, 2, 3, 4, 5])); 42 expect(it.current, equals([1, 2, 3, 4, 5]));
43 expect(it.moveNext(), isFalse); 43 expect(it.moveNext(), isFalse);
44 expect(it.current, isNull); 44 expect(it.current, isNull);
45 }); 45 });
46 46
47 test('should return partitions of correct size if ' 47 test(
48 'should return partitions of correct size if '
48 'partition size > input size', () { 49 'partition size > input size', () {
49 var it = partition([1, 2, 3, 4, 5], 3).iterator; 50 var it = partition([1, 2, 3, 4, 5], 3).iterator;
50 expect(it.moveNext(), isTrue); 51 expect(it.moveNext(), isTrue);
51 expect(it.current, equals([1, 2, 3])); 52 expect(it.current, equals([1, 2, 3]));
52 expect(it.moveNext(), isTrue); 53 expect(it.moveNext(), isTrue);
53 expect(it.current, equals([4, 5])); 54 expect(it.current, equals([4, 5]));
54 expect(it.moveNext(), isFalse); 55 expect(it.moveNext(), isFalse);
55 expect(it.current, isNull); 56 expect(it.current, isNull);
56 }); 57 });
57 }); 58 });
58 } 59 }
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