blob: 31466efcb1c9343185d2ddbe750695fa92a0e5ea [file] [log] [blame]
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library map_unmodifiable_cast_test;
import "package:expect/expect.dart";
import 'dart:collection';
void main() {
testNum(const {1: 37}, "const");
testNum(const <num, num>{1: 37}.cast<int, int>(), "const.cast");
testNum(new UnmodifiableMapView({1: 37}), "unmod");
testNum(new UnmodifiableMapView<num, num>(<num, num>{1: 37}), "unmod.cast");
testNum(new UnmodifiableMapView<num, num>(<num, num>{1: 37}).cast<int, int>(),
testNum(new UnmodifiableMapView<num, num>(<int, int>{1: 37}).cast<int, int>(),
new UnmodifiableMapView<Object, Object>(<num, num>{1: 37})
.cast<int, int>(),
new UnmodifiableMapView<Object, Object>(<int, int>{1: 37})
.cast<num, num>(),
var m2 = new Map<num, num>.unmodifiable({1: 37});
testNum(m2, "Map<num>.unmod");
testNum(m2.cast<int, int>(), "Map<num>.unmod.cast<int>");
Map<Symbol, dynamic> nsm = new NsmMap().foo(a: 0);
test<Symbol, dynamic>(nsm, #a, 0, "nsm", noSuchMethodMap: true);
test<Object, int>(nsm.cast<Object, int>(), #a, 0, "nsm.cast",
noSuchMethodMap: true);
void testNum(Map<Object, Object> map, String name) {
test<int, int>(map, 1, 37, name);
void test<K, V>(map, firstKey, firstValue, String name,
{bool noSuchMethodMap: false}) {
if (!noSuchMethodMap) {
Expect.isTrue(map.containsKey(firstKey), "$name.containsKey");
Expect.equals(1, map.length, "$name.length");
Expect.equals(firstKey, map.keys.first, "$name.keys.first");
Expect.equals(firstValue, map.values.first, "$name.values.first");
Expect.throwsUnsupportedError(map.clear, "$name.clear");
Expect.throwsUnsupportedError(() {
}, "$name.remove");
Expect.throwsUnsupportedError(() {
map[firstKey] = firstValue;
}, "$name[]=");
Expect.throwsUnsupportedError(() {
map.addAll(<K, V>{firstKey: firstValue});
}, "$name.addAll");
class NsmMap {
noSuchMethod(i) => i.namedArguments;
foo({a, b, c, d});