Robert Nystrom
2034061433
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Srujan Gaddam <srujzs@google.com>
72 lines
1.8 KiB
Dart
Executable File
72 lines
1.8 KiB
Dart
Executable File
// Copyright (c) 2019, 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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// VMOptions=--deterministic
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import "package:expect/expect.dart";
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import 'dart:typed_data';
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// Found by "value-guided" DartFuzzing: incorrect clamping.
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// https://github.com/dart-lang/sdk/issues/37868
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@pragma("vm:never-inline")
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foo(List<int> x) => Uint8ClampedList.fromList(x);
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@pragma("vm:never-inline")
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bar(List<int> x) => Uint8List.fromList(x);
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@pragma("vm:never-inline")
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baz(List<int> x) => Int8List.fromList(x);
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main() {
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// Proper values.
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final List<int> x = [
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9223372036854775807,
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-9223372036854775808,
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9223372032559808513,
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-9223372032559808513,
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5000000000,
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-5000000000,
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2147483647,
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-2147483648,
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255,
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-255,
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11,
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-11,
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0,
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-1,
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];
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Expect.listEquals(
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[255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 11, 0, 0, 0], foo(x));
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Expect.listEquals(
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[255, 0, 1, 255, 0, 0, 255, 0, 255, 1, 11, 245, 0, 255], bar(x));
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Expect.listEquals([-1, 0, 1, -1, 0, 0, -1, 0, -1, 1, 11, -11, 0, -1], baz(x));
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// Hidden null.
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final List<int> a = [1, null, 2].cast<int>();
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int num_exceptions = 0;
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try {
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foo(a);
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} catch (e) {
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// In strong mode, .cast() throws a TypeError when casting to int. In weak
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// mode, that cast succeeds and then NoSuchMethod is thrown later when the
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// null is used.
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Expect.isTrue(e is TypeError || e is NoSuchMethodError);
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num_exceptions++;
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}
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try {
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bar(a);
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} catch (e) {
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Expect.isTrue(e is TypeError || e is NoSuchMethodError);
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num_exceptions++;
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}
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try {
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baz(a);
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} catch (e) {
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Expect.isTrue(e is TypeError || e is NoSuchMethodError);
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num_exceptions++;
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}
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Expect.equals(3, num_exceptions);
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}
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