mirror of
https://github.com/dart-lang/sdk
synced 2024-09-18 21:31:20 +00:00
50aa43569d
Fixes issue #24884 BUG= http://dartbug.com/24884 R=floitsch@google.com Review URL: https://codereview.chromium.org/1440663003 .
592 lines
18 KiB
Dart
592 lines
18 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 "dart:collection";
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import "dart:typed_data";
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import "package:expect/expect.dart";
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void main() {
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// Typed lists - fixed length and can only contain integers.
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testTypedList(new Uint8List(4));
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testTypedList(new Int8List(4));
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testTypedList(new Uint16List(4));
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testTypedList(new Int16List(4));
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testTypedList(new Uint32List(4));
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testTypedList(new Int32List(4));
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testTypedList(new Uint8List(4).toList(growable: false));
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testTypedList(new Int8List(4).toList(growable: false));
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testTypedList(new Uint16List(4).toList(growable: false));
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testTypedList(new Int16List(4).toList(growable: false));
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testTypedList(new Uint32List(4).toList(growable: false));
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testTypedList(new Int32List(4).toList(growable: false));
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// Fixed length lists, length 4.
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testFixedLengthList(new List(4));
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testFixedLengthList(new List(4).toList(growable: false));
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testFixedLengthList((new List()..length = 4).toList(growable: false));
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// ListBase implementation of List.
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testFixedLengthList(new MyFixedList(new List(4)));
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testFixedLengthList(new MyFixedList(new List(4)).toList(growable: false));
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// Growable lists. Initial length 0.
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testGrowableList(new List());
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testGrowableList(new List().toList());
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testGrowableList(new List(0).toList());
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testGrowableList(new List.filled(0, null, growable: true));
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testGrowableList([]);
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testGrowableList((const []).toList());
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testGrowableList(new MyList([]));
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testGrowableList(new MyList([]).toList());
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testTypedGrowableList(new Uint8List(0).toList());
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testTypedGrowableList(new Int8List(0).toList());
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testTypedGrowableList(new Uint16List(0).toList());
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testTypedGrowableList(new Int16List(0).toList());
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testTypedGrowableList(new Uint32List(0).toList());
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testTypedGrowableList(new Int32List(0).toList());
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testListConstructor();
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testErrors();
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}
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void testErrors() {
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// Regression for issue http://dartbug.com/24295
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testIndexError(list, index, name) {
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try {
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list[list.length];
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} catch (err, s) {
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Expect.isTrue(err is RangeError, "$name[$index]");
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Expect.equals(list.length, err.invalidValue, "$name[$index] value");
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Expect.equals(list.length - 1, err.end, "$name[$index] end");
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Expect.equals(0, err.start, "$name[$index] start");
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}
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}
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testIndex(list, name) {
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testIndexError(list, list.length, name); // Just too big.
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testIndexError(list, -1, name); // Negative.
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testIndexError(list, 0x123456789, name); // > 2^32.
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testIndexError(list, -0x123456789, name); // < -2^32.
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}
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// Slices.
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testSliceError(list, start, end, name) {
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name = "$name[$start:$end]";
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var realError;
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try {
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RangeError.checkValidRange(start, end, list.length);
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} catch (e) {
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realError = e;
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}
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var result;
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try {
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result = list.sublist(start, end);
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} catch (actualError) {
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Expect.isNotNull(realError, "$name should not fail");
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Expect.isTrue(actualError is RangeError, "$name is-error: $actualError");
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Expect.equals(realError.name, actualError.name, "$name name");
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Expect.equals(realError.invalidValue, actualError.invalidValue,
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"$name[0:l+1] value");
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Expect.equals(realError.start, actualError.start, "$name[0:l+1] start");
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Expect.equals(realError.end, actualError.end, "$name[0:l+1] end");
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return;
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}
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// Didn't throw.
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Expect.isNull(realError, "$name should fail");
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Expect.equals(end - start, result.length, "$name result length");
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}
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testSlice(list, name) {
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testSliceError(list, 0, list.length, name); // Should not fail.
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testSliceError(list, 0, list.length + 1, name);
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testSliceError(list, 0, 0x123456789, name);
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testSliceError(list, -1, list.length, name);
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testSliceError(list, -0x123456789, list.length, name);
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testSliceError(list, list.length + 1, list.length + 1, name);
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testSliceError(list, -1, null, name);
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if (list.length > 0) {
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testSliceError(list, list.length, list.length - 1, name);
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}
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}
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testRangeErrors(list, name) {
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testIndex(list, "$name#${list.length} index");
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testSlice(list, "$name#${list.length} slice");
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}
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// Empty lists.
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testRangeErrors([], "list");
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testRangeErrors(new List(0), "fixed-list");
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testRangeErrors(const [], "const-list");
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testRangeErrors(new List.unmodifiable([]), "unmodifiable");
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testRangeErrors(new Uint8List(0), "typed-list");
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testRangeErrors(new Uint8List.view(new Uint8List(0).buffer), "typed-list");
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testRangeErrors([1, 2, 3].sublist(1, 1), "sub-list");
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// Non-empty lists.
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testRangeErrors([1, 2, 3], "list");
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testRangeErrors(new List(3), "fixed-list");
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testRangeErrors(const [1, 2, 3], "const-list");
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testRangeErrors(new List.unmodifiable([1, 2, 3]), "unmodifiable");
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testRangeErrors(new Uint8List(3), "typed-list");
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testRangeErrors(new Uint8List.view(new Uint8List(3).buffer), "typed-list");
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testRangeErrors([1, 2, 3, 4, 5].sublist(1, 3), "sub-list");
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}
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void testLength(int length, List list) {
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Expect.equals(length, list.length);
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(length == 0 ? Expect.isTrue : Expect.isFalse)(list.isEmpty);
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(length != 0 ? Expect.isTrue : Expect.isFalse)(list.isNotEmpty);
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}
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void testTypedLengthInvariantOperations(List list) {
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// length
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Expect.equals(list.length, 4);
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// operators [], []=.
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for (int i = 0; i < 4; i++) list[i] = 0;
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list[0] = 4;
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Expect.listEquals([4, 0, 0, 0], list);
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list[1] = 7;
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Expect.listEquals([4, 7, 0, 0], list);
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list[3] = 2;
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Expect.listEquals([4, 7, 0, 2], list);
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for (int i = 0; i < list.length; i++) {
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list[i] = i;
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}
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// indexOf, lastIndexOf
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for (int i = 0; i < 4; i++) {
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Expect.equals(i, list[i]);
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Expect.equals(i, list.indexOf(i));
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Expect.equals(i, list.lastIndexOf(i));
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}
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// setRange.
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list.setRange(0, 4, [3, 2, 1, 0]);
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Expect.listEquals([3, 2, 1, 0], list);
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list.setRange(1, 4, list);
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Expect.listEquals([3, 3, 2, 1], list);
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list.setRange(0, 3, list, 1);
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Expect.listEquals([3, 2, 1, 1], list);
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list.setRange(0, 3, list, 1);
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Expect.listEquals([2, 1, 1, 1], list);
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list.setRange(2, 4, list, 0);
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Expect.listEquals([2, 1, 2, 1], list);
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// setAll.
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list.setAll(0, [3, 2, 0, 1]);
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Expect.listEquals([3, 2, 0, 1], list);
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list.setAll(1, [0, 1]);
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Expect.listEquals([3, 0, 1, 1], list);
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// fillRange.
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list.fillRange(1, 3, 7);
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Expect.listEquals([3, 7, 7, 1], list);
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list.fillRange(0, 0, 9);
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Expect.listEquals([3, 7, 7, 1], list);
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list.fillRange(4, 4, 9);
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Expect.listEquals([3, 7, 7, 1], list);
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list.fillRange(0, 4, 9);
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Expect.listEquals([9, 9, 9, 9], list);
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// sort.
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list.setRange(0, 4, [3, 2, 1, 0]);
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list.sort();
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Expect.listEquals([0, 1, 2, 3], list);
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list.setRange(0, 4, [1, 2, 3, 0]);
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list.sort();
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Expect.listEquals([0, 1, 2, 3], list);
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list.setRange(0, 4, [1, 3, 0, 2]);
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list.sort((a, b) => b - a); // reverse compare.
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Expect.listEquals([3, 2, 1, 0], list);
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list.setRange(0, 4, [1, 2, 3, 0]);
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list.sort((a, b) => b - a);
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Expect.listEquals([3, 2, 1, 0], list);
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// Some Iterable methods.
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list.setRange(0, 4, [0, 1, 2, 3]);
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// map.
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testMap(val) {return val * 2 + 10; }
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List mapped = list.map(testMap).toList();
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Expect.equals(mapped.length, list.length);
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for (var i = 0; i < list.length; i++) {
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Expect.equals(mapped[i], list[i] * 2 + 10);
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}
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matchAll(val) => true;
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matchSome(val) { return (val == 1 || val == 2); }
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matchSomeFirst(val) { return val == 0; }
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matchSomeLast(val) { return val == 3; }
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matchNone(val) => false;
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// where.
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Iterable filtered = list.where(matchSome);
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Expect.equals(filtered.length, 2);
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// every
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Expect.isTrue(list.every(matchAll));
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Expect.isFalse(list.every(matchSome));
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Expect.isFalse(list.every(matchNone));
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// any
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Expect.isTrue(list.any(matchAll));
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Expect.isTrue(list.any(matchSome));
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Expect.isTrue(list.any(matchSomeFirst));
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Expect.isTrue(list.any(matchSomeLast));
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Expect.isFalse(list.any(matchNone));
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// Argument checking isn't implemented for typed arrays in browsers,
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// so it's moved to the method below for now.
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}
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void testLengthInvariantOperations(List list) {
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testTypedLengthInvariantOperations(list);
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// Tests that need untyped lists.
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list.setAll(0, [0, 1, 2, 3]);
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Expect.equals(-1, list.indexOf(100));
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Expect.equals(-1, list.lastIndexOf(100));
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list[2] = new Yes();
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Expect.equals(2, list.indexOf(100));
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Expect.equals(2, list.lastIndexOf(100));
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list[3] = new Yes();
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Expect.equals(2, list.indexOf(100));
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Expect.equals(3, list.lastIndexOf(100));
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list[2] = 2;
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Expect.equals(3, list.indexOf(100));
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Expect.equals(3, list.lastIndexOf(100));
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list[3] = 3;
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Expect.equals(-1, list.indexOf(100));
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Expect.equals(-1, list.lastIndexOf(100));
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// Argument errors on bad indices. List is still [0, 1, 2, 3].
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testArgumentError(action()) {
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Expect.throws(action, (e) => e is ArgumentError);
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}
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// Direct indices (0 <= index < length).
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testArgumentError(() => list[-1]);
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testArgumentError(() => list[4]);
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testArgumentError(() => list[-1] = 99);
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testArgumentError(() => list[4] = 99);
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testArgumentError(() => list.elementAt(-1));
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testArgumentError(() => list.elementAt(4));
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// Ranges (0 <= start <= end <= length).
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testArgumentError(() => list.sublist(-1, 2));
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testArgumentError(() => list.sublist(-1, 5));
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testArgumentError(() => list.sublist(2, 5));
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testArgumentError(() => list.sublist(4, 2));
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testArgumentError(() => list.getRange(-1, 2));
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testArgumentError(() => list.getRange(-1, 5));
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testArgumentError(() => list.getRange(2, 5));
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testArgumentError(() => list.getRange(4, 2));
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testArgumentError(() => list.setRange(-1, 2, [1, 2, 3]));
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testArgumentError(() => list.setRange(-1, 5, [1, 2, 3, 4, 5, 6]));
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testArgumentError(() => list.setRange(2, 5, [1, 2, 3]));
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testArgumentError(() => list.setRange(4, 2, [1, 2]));
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// for setAll, end is implictly start + values.length.
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testArgumentError(() => list.setAll(-1, []));
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testArgumentError(() => list.setAll(5, []));
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testArgumentError(() => list.setAll(2, [1, 2, 3]));
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testArgumentError(() => list.fillRange(-1, 2));
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testArgumentError(() => list.fillRange(-1, 5));
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testArgumentError(() => list.fillRange(2, 5));
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testArgumentError(() => list.fillRange(4, 2));
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}
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void testTypedList(List list) {
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testTypedLengthInvariantOperations(list);
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testCannotChangeLength(list);
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}
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void testFixedLengthList(List list) {
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testLengthInvariantOperations(list);
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testCannotChangeLength(list);
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}
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void testCannotChangeLength(List list) {
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isUnsupported(action()) {
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Expect.throws(action, (e) => e is UnsupportedError);
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}
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isUnsupported(() => list.add(0));
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isUnsupported(() => list.addAll([0]));
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isUnsupported(() => list.removeLast());
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isUnsupported(() => list.insert(0, 1));
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isUnsupported(() => list.insertAll(0, [1]));
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isUnsupported(() => list.clear());
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isUnsupported(() => list.remove(1));
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isUnsupported(() => list.removeAt(1));
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isUnsupported(() => list.removeRange(0, 1));
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isUnsupported(() => list.replaceRange(0, 1, []));
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}
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void testTypedGrowableList(List list) {
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testLength(0, list);
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// set length.
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list.length = 4;
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testLength(4, list);
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testTypedLengthInvariantOperations(list);
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testGrowableListOperations(list);
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}
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void testGrowableList(List list) {
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testLength(0, list);
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// set length.
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list.length = 4;
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testLength(4, list);
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testLengthInvariantOperations(list);
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testGrowableListOperations(list);
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}
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void testGrowableListOperations(List list) {
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// add, removeLast.
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list.clear();
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testLength(0, list);
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list.add(4);
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testLength(1, list);
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Expect.equals(4, list.removeLast());
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testLength(0, list);
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for (int i = 0; i < 100; i++) {
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list.add(i);
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}
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Expect.equals(list.length, 100);
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for (int i = 0; i < 100; i++) {
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Expect.equals(i, list[i]);
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}
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Expect.equals(17, list.indexOf(17));
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Expect.equals(17, list.lastIndexOf(17));
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Expect.equals(-1, list.indexOf(999));
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Expect.equals(-1, list.lastIndexOf(999));
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Expect.equals(99, list.removeLast());
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testLength(99, list);
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// remove.
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Expect.isTrue(list.remove(4));
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testLength(98, list);
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Expect.isFalse(list.remove(4));
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testLength(98, list);
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list.clear();
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testLength(0, list);
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list.add(4);
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list.add(4);
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testLength(2, list);
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Expect.isTrue(list.remove(4));
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testLength(1, list);
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Expect.isTrue(list.remove(4));
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testLength(0, list);
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Expect.isFalse(list.remove(4));
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testLength(0, list);
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// removeWhere, retainWhere
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for (int i = 0; i < 100; i++) {
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list.add(i);
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}
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testLength(100, list);
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list.removeWhere((int x) => x.isOdd);
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testLength(50, list);
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for (int i = 0; i < list.length; i++) {
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Expect.isTrue(list[i].isEven);
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}
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list.retainWhere((int x) => (x % 3) == 0);
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testLength(17, list);
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for (int i = 0; i < list.length; i++) {
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Expect.isTrue((list[i] % 6) == 0);
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}
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// insert, remove, removeAt
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list.clear();
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testLength(0, list);
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list.insert(0, 0);
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Expect.listEquals([0], list);
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list.insert(0, 1);
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Expect.listEquals([1, 0], list);
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list.insert(0, 2);
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Expect.listEquals([2, 1, 0], list);
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Expect.isTrue(list.remove(1));
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Expect.listEquals([2, 0], list);
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list.insert(1, 1);
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Expect.listEquals([2, 1, 0], list);
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list.removeAt(1);
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Expect.listEquals([2, 0], list);
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list.removeAt(1);
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Expect.listEquals([2], list);
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// insertAll
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list.insertAll(0, [1, 2, 3]);
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Expect.listEquals([1, 2, 3, 2], list);
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list.insertAll(2, []);
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Expect.listEquals([1, 2, 3, 2], list);
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list.insertAll(4, [7, 9]);
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Expect.listEquals([1, 2, 3, 2, 7, 9], list);
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// addAll
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list.addAll(list.reversed.toList());
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Expect.listEquals([1, 2, 3, 2, 7, 9, 9, 7, 2, 3, 2, 1], list);
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list.addAll([]);
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Expect.listEquals([1, 2, 3, 2, 7, 9, 9, 7, 2, 3, 2, 1], list);
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// replaceRange
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list.replaceRange(3, 7, [0, 0]);
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Expect.listEquals([1, 2, 3, 0, 0, 7, 2, 3, 2, 1], list);
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list.replaceRange(2, 3, [5, 5, 5]);
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Expect.listEquals([1, 2, 5, 5, 5, 0, 0, 7, 2, 3, 2, 1], list);
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list.replaceRange(2, 4, [6, 6]);
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Expect.listEquals([1, 2, 6, 6, 5, 0, 0, 7, 2, 3, 2, 1], list);
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list.replaceRange(6, 8, []);
|
|
Expect.listEquals([1, 2, 6, 6, 5, 0, 2, 3, 2, 1], list);
|
|
|
|
// Operations that change the length cause ConcurrentModificationError.
|
|
void testConcurrentModification(action()) {
|
|
testIterator(int when) {
|
|
list.length = 4;
|
|
list.setAll(0, [0, 1, 2, 3]);
|
|
Expect.throws(() {
|
|
for (var element in list) {
|
|
if (element == when) action();
|
|
}
|
|
}, (e) => e is ConcurrentModificationError);
|
|
}
|
|
testForEach(int when) {
|
|
list.length = 4;
|
|
list.setAll(0, [0, 1, 2, 3]);
|
|
Expect.throws(() {
|
|
list.forEach((var element) {
|
|
if (element == when) action();
|
|
});
|
|
}, (e) => e is ConcurrentModificationError);
|
|
}
|
|
// Test the change at different points of the iteration.
|
|
testIterator(0);
|
|
testIterator(1);
|
|
testIterator(3);
|
|
testForEach(0);
|
|
testForEach(1);
|
|
testForEach(3);
|
|
}
|
|
|
|
testConcurrentModification(() => list.add(5));
|
|
testConcurrentModification(() => list.addAll([5, 6]));
|
|
testConcurrentModification(() => list.removeLast());
|
|
for (int i = 0; i < 4; i++) {
|
|
testConcurrentModification(() => list.remove(i));
|
|
testConcurrentModification(() => list.removeAt(i));
|
|
testConcurrentModification(() => list.removeWhere((x) => x == i));
|
|
testConcurrentModification(() => list.retainWhere((x) => x != i));
|
|
testConcurrentModification(() => list.insert(i, 5));
|
|
testConcurrentModification(() => list.insertAll(i, [5, 6]));
|
|
testConcurrentModification(() => list.removeRange(i, i + 1));
|
|
testConcurrentModification(() => list.replaceRange(i, i + 1, [5, 6]));
|
|
}
|
|
|
|
// Any operation that doesn't change the length should be safe for iteration.
|
|
testSafeConcurrentModification(action()) {
|
|
list.length = 4;
|
|
list.setAll(0, [0, 1, 2, 3]);
|
|
for (var i in list) {
|
|
action();
|
|
}
|
|
list.forEach((e) => action());
|
|
}
|
|
|
|
testSafeConcurrentModification(() {
|
|
list.add(5);
|
|
list.removeLast();
|
|
});
|
|
testSafeConcurrentModification(() {
|
|
list.add(list[0]);
|
|
list.removeAt(0);
|
|
});
|
|
testSafeConcurrentModification(() {
|
|
list.insert(0, list.removeLast());
|
|
});
|
|
testSafeConcurrentModification(() {
|
|
list.replaceRange(1, 3, list.sublist(1, 3).reversed);
|
|
});
|
|
|
|
// Argument errors on bad indices for methods that are only allowed
|
|
// on growable lists.
|
|
list.length = 4;
|
|
list.setAll(0, [0, 1, 2, 3]);
|
|
testArgumentError(action()) {
|
|
Expect.throws(action, (e) => e is ArgumentError);
|
|
}
|
|
|
|
// Direct indices (0 <= index < length).
|
|
testArgumentError(() => list.removeAt(-1));
|
|
testArgumentError(() => list.removeAt(4));
|
|
// Direct indices including end (0 <= index <= length).
|
|
testArgumentError(() => list.insert(-1, 0));
|
|
testArgumentError(() => list.insert(5, 0));
|
|
testArgumentError(() => list.insertAll(-1, [0]));
|
|
testArgumentError(() => list.insertAll(5, [0]));
|
|
testArgumentError(() => list.insertAll(-1, [0]));
|
|
testArgumentError(() => list.insertAll(5, [0]));
|
|
// Ranges (0 <= start <= end <= length).
|
|
testArgumentError(() => list.removeRange(-1, 2));
|
|
testArgumentError(() => list.removeRange(2, 5));
|
|
testArgumentError(() => list.removeRange(-1, 5));
|
|
testArgumentError(() => list.removeRange(4, 2));
|
|
testArgumentError(() => list.replaceRange(-1, 2, [9]));
|
|
testArgumentError(() => list.replaceRange(2, 5, [9]));
|
|
testArgumentError(() => list.replaceRange(-1, 5, [9]));
|
|
testArgumentError(() => list.replaceRange(4, 2, [9]));
|
|
}
|
|
|
|
class Yes {
|
|
operator ==(var other) => true;
|
|
int get hashCode => 0;
|
|
}
|
|
|
|
class MyList<E> extends ListBase<E> {
|
|
List<E> _source;
|
|
MyList(this._source);
|
|
int get length => _source.length;
|
|
void set length(int length) { _source.length = length; }
|
|
E operator[](int index) => _source[index];
|
|
void operator[]=(int index, E value) { _source[index] = value; }
|
|
}
|
|
|
|
class MyFixedList<E> extends ListBase<E> {
|
|
List<E> _source;
|
|
MyFixedList(this._source);
|
|
int get length => _source.length;
|
|
void set length(int length) { throw new UnsupportedError("Fixed length!"); }
|
|
E operator[](int index) => _source[index];
|
|
void operator[]=(int index, E value) { _source[index] = value; }
|
|
}
|
|
|
|
void testListConstructor() {
|
|
Expect.throws(() { new List(0).add(4); }); // Is fixed-length.
|
|
Expect.throws(() { new List(-2); }); // Not negative. /// 01: ok
|
|
Expect.throws(() { new List(null); }); // Not null.
|
|
Expect.listEquals([4], new List()..add(4));
|
|
Expect.throws(() { new List.filled(0, 42).add(4); }); // Is fixed-length.
|
|
Expect.throws(() { new List.filled(-2, 42); }); // Not negative.
|
|
Expect.throws(() { new List.filled(null, 42); }); // Not null.
|
|
}
|