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![Robert Nystrom](/assets/img/avatar_default.png)
Change-Id: I1783f624c7ce7d3b962c301c27ac0f4422d7c28f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126824 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
112 lines
2.8 KiB
Dart
112 lines
2.8 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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import 'dart:collection';
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main() {
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defaultFunctionValuesTest();
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defaultKeyFunctionTest();
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defaultValueFunctionTest();
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noDefaultValuesTest();
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emptyIterableTest();
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equalElementsTest();
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genericTypeTest();
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}
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void defaultFunctionValuesTest() {
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var map = new HashMap.fromIterable([1, 2, 3]);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(3, map.length);
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Expect.equals(3, map.keys.length);
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Expect.equals(3, map.values.length);
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Expect.equals(1, map[1]);
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Expect.equals(2, map[2]);
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Expect.equals(3, map[3]);
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}
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void defaultKeyFunctionTest() {
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var map = new HashMap.fromIterable([1, 2, 3], value: (x) => x + 1);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(3, map.length);
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Expect.equals(3, map.keys.length);
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Expect.equals(3, map.values.length);
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Expect.equals(2, map[1]);
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Expect.equals(3, map[2]);
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Expect.equals(4, map[3]);
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}
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void defaultValueFunctionTest() {
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var map = new HashMap.fromIterable([1, 2, 3], key: (x) => x + 1);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(3, map.length);
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Expect.equals(3, map.keys.length);
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Expect.equals(3, map.values.length);
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Expect.equals(1, map[2]);
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Expect.equals(2, map[3]);
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Expect.equals(3, map[4]);
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}
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void noDefaultValuesTest() {
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var map = new HashMap.fromIterable([1, 2, 3],
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key: (x) => x + 1, value: (x) => x - 1);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(3, map.length);
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Expect.equals(3, map.keys.length);
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Expect.equals(3, map.values.length);
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Expect.equals(0, map[2]);
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Expect.equals(1, map[3]);
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Expect.equals(2, map[4]);
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}
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void emptyIterableTest() {
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var map = new HashMap.fromIterable([]);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(0, map.length);
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Expect.equals(0, map.keys.length);
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Expect.equals(0, map.values.length);
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}
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void equalElementsTest() {
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var map = new HashMap.fromIterable([1, 2, 2], key: (x) => x + 1);
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Expect.isTrue(map is Map);
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Expect.isTrue(map is HashMap);
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Expect.equals(2, map.length);
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Expect.equals(2, map.keys.length);
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Expect.equals(2, map.values.length);
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Expect.equals(1, map[2]);
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Expect.equals(2, map[3]);
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}
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void genericTypeTest() {
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var map = new HashMap<String, String>.fromIterable(<int>[1, 2, 3],
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key: (x) => '$x', value: (x) => '$x');
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Expect.isTrue(map is Map<String, String>);
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// Make sure it is not just Map<dynamic, dynamic>.
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Expect.isFalse(map is Map<int, dynamic>);
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Expect.isFalse(map is Map<dynamic, int>);
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}
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