blob: 1207a5419a6c4c8f898cdc4d19fc4137afee0b3d [file] [log] [blame]
// Copyright (c) 2011, 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.
// @dart = 2.9
import "package:expect/expect.dart";
import 'dart:collection';
main() {
defaultFunctionValuesTest();
defaultKeyFunctionTest();
defaultValueFunctionTest();
noDefaultValuesTest();
emptyIterableTest();
equalElementsTest();
genericTypeTest();
typedTest();
}
void defaultFunctionValuesTest() {
var map = new SplayTreeMap.fromIterable([1, 2, 3]);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(3, map.length);
Expect.equals(3, map.keys.length);
Expect.equals(3, map.values.length);
Expect.equals(1, map[1]);
Expect.equals(2, map[2]);
Expect.equals(3, map[3]);
}
void defaultKeyFunctionTest() {
var map = new SplayTreeMap.fromIterable([1, 2, 3], value: (x) => x + 1);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(3, map.length);
Expect.equals(3, map.keys.length);
Expect.equals(3, map.values.length);
Expect.equals(2, map[1]);
Expect.equals(3, map[2]);
Expect.equals(4, map[3]);
}
void defaultValueFunctionTest() {
var map = new SplayTreeMap.fromIterable([1, 2, 3], key: (x) => x + 1);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(3, map.length);
Expect.equals(3, map.keys.length);
Expect.equals(3, map.values.length);
Expect.equals(1, map[2]);
Expect.equals(2, map[3]);
Expect.equals(3, map[4]);
}
void noDefaultValuesTest() {
var map = new SplayTreeMap.fromIterable([1, 2, 3],
key: (x) => x + 1, value: (x) => x - 1);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(3, map.length);
Expect.equals(3, map.keys.length);
Expect.equals(3, map.values.length);
Expect.equals(0, map[2]);
Expect.equals(1, map[3]);
Expect.equals(2, map[4]);
}
void emptyIterableTest() {
var map = new SplayTreeMap.fromIterable([]);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(0, map.length);
Expect.equals(0, map.keys.length);
Expect.equals(0, map.values.length);
}
void equalElementsTest() {
var map = new SplayTreeMap.fromIterable([1, 2, 2], key: (x) => x + 1);
Expect.isTrue(map is Map);
Expect.isTrue(map is SplayTreeMap);
Expect.isFalse(map is HashMap);
Expect.equals(2, map.length);
Expect.equals(2, map.keys.length);
Expect.equals(2, map.values.length);
Expect.equals(1, map[2]);
Expect.equals(2, map[3]);
}
void genericTypeTest() {
var map =
new SplayTreeMap<int, String>.fromIterable([1, 2, 3], value: (x) => '$x');
Expect.isTrue(map is Map<int, String>);
Expect.isTrue(map is SplayTreeMap<int, String>);
// Make sure it is not just SplayTreeMap<dynamic, dynamic>.
Expect.isFalse(map is SplayTreeMap<String, dynamic>);
Expect.isFalse(map is SplayTreeMap<dynamic, int>);
}
typedef String objectToString(Object v);
typedef bool objectToBool(Object v);
// Test in checked mode with explicitly given types.
void typedTest() {
// Assign functions to typed function variables.
objectToString key = (v) => "$v";
objectToBool value = (v) => (v as int).isOdd;
Function id = (int i) => i;
Expect.throws(() {
new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3], key: key
// No "value" map, defaults to identity, which returns int, not bool.
);
});
Expect.throws(() {
new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
// No "key" map, defaults to identity, which returns int, not String.
value: value);
});
Expect.throws(() {
new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
key: id as dynamic, // wrong type.
value: value);
});
Expect.throws(() {
new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
key: key, value: id as dynamic // wrong type.
);
});
// But it works with explicit types when used correctly.
SplayTreeMap<String, bool> map = new SplayTreeMap<String, bool>.fromIterable(
<int>[1, 2, 3],
key: key, value: value);
Iterable<String> keys = map.keys;
Iterable<bool> values = map.values;
List<String> keyList = keys.toList();
List<bool> valueList = values.toList();
Expect.equals(3, keyList.length);
Expect.equals(3, valueList.length);
Expect.equals(keys.first, map.firstKey());
Expect.equals(keys.last, map.lastKey());
}