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

Issue 2990903002: Migrated test block 16 to Dart 2.0. (Closed)
Patch Set: Changed useIntegerKeys to a named parameter Created 3 years, 4 months ago
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1 // Copyright (c) 2011, 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 import "package:expect/expect.dart";
6 import 'dart:collection';
7
8 main() {
9 defaultFunctionValuesTest();
10 defaultKeyFunctionTest();
11 defaultValueFunctionTest();
12 noDefaultValuesTest();
13 emptyIterableTest();
14 equalElementsTest();
15 genericTypeTest();
16 }
17
18 void defaultFunctionValuesTest() {
19 var map = new HashMap.fromIterable([1, 2, 3]);
20
21 Expect.isTrue(map is Map);
22 Expect.isTrue(map is HashMap);
23
24 Expect.equals(3, map.length);
25 Expect.equals(3, map.keys.length);
26 Expect.equals(3, map.values.length);
27
28 Expect.equals(1, map[1]);
29 Expect.equals(2, map[2]);
30 Expect.equals(3, map[3]);
31 }
32
33 void defaultKeyFunctionTest() {
34 var map = new HashMap.fromIterable([1, 2, 3], value: (x) => x + 1);
35
36 Expect.isTrue(map is Map);
37 Expect.isTrue(map is HashMap);
38
39 Expect.equals(3, map.length);
40 Expect.equals(3, map.keys.length);
41 Expect.equals(3, map.values.length);
42
43 Expect.equals(2, map[1]);
44 Expect.equals(3, map[2]);
45 Expect.equals(4, map[3]);
46 }
47
48 void defaultValueFunctionTest() {
49 var map = new HashMap.fromIterable([1, 2, 3], key: (x) => x + 1);
50
51 Expect.isTrue(map is Map);
52 Expect.isTrue(map is HashMap);
53
54 Expect.equals(3, map.length);
55 Expect.equals(3, map.keys.length);
56 Expect.equals(3, map.values.length);
57
58 Expect.equals(1, map[2]);
59 Expect.equals(2, map[3]);
60 Expect.equals(3, map[4]);
61 }
62
63 void noDefaultValuesTest() {
64 var map = new HashMap.fromIterable([1, 2, 3],
65 key: (x) => x + 1, value: (x) => x - 1);
66
67 Expect.isTrue(map is Map);
68 Expect.isTrue(map is HashMap);
69
70 Expect.equals(3, map.length);
71 Expect.equals(3, map.keys.length);
72 Expect.equals(3, map.values.length);
73
74 Expect.equals(0, map[2]);
75 Expect.equals(1, map[3]);
76 Expect.equals(2, map[4]);
77 }
78
79 void emptyIterableTest() {
80 var map = new HashMap.fromIterable([]);
81 Expect.isTrue(map is Map);
82 Expect.isTrue(map is HashMap);
83
84 Expect.equals(0, map.length);
85 Expect.equals(0, map.keys.length);
86 Expect.equals(0, map.values.length);
87 }
88
89 void equalElementsTest() {
90 var map = new HashMap.fromIterable([1, 2, 2], key: (x) => x + 1);
91
92 Expect.isTrue(map is Map);
93 Expect.isTrue(map is HashMap);
94
95 Expect.equals(2, map.length);
96 Expect.equals(2, map.keys.length);
97 Expect.equals(2, map.values.length);
98
99 Expect.equals(1, map[2]);
100 Expect.equals(2, map[3]);
101 }
102
103 void genericTypeTest() {
104 var map = new HashMap<String, String>.fromIterable(<int>[1, 2, 3],
105 key: (x) => '$x', value: (x) => '$x');
106 Expect.isTrue(map is Map<String, String>);
107
108 // Make sure it is not just Map<dynamic, dynamic>.
109 Expect.isFalse(map is Map<int, dynamic>);
110 Expect.isFalse(map is Map<dynamic, int>);
111 }
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