| // Copyright (c) 2019, 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 test program for testing dart:ffi primitive data pointers. |
| // |
| // These mallocs trigger an asan alarm, so these tests are in a separate file |
| // which is excluded in asan mode. |
| |
| library FfiTest; |
| |
| import 'dart:ffi' as ffi; |
| import 'dart:ffi' show Pointer; |
| |
| import "package:expect/expect.dart"; |
| |
| void main() { |
| testPointerAllocateTooLarge(); |
| testPointerAllocateNegative(); |
| } |
| |
| void testPointerAllocateTooLarge() { |
| // Try to allocate something that doesn't fit in 64 bit address space. |
| int maxInt = 9223372036854775807; // 2^63 - 1 |
| Expect.throws(() => Pointer<ffi.Int64>.allocate(count: maxInt)); |
| |
| // Try to allocate almost the full 64 bit address space. |
| int maxInt1_8 = 1152921504606846975; // 2^60 -1 |
| Expect.throws(() => Pointer<ffi.Int64>.allocate(count: maxInt1_8)); |
| } |
| |
| void testPointerAllocateNegative() { |
| // Passing in -1 will be converted into an unsigned integer. So, it will try |
| // to allocate SIZE_MAX - 1 + 1 bytes. This will fail as it is the max amount |
| // of addressable memory on the system. |
| Expect.throws(() => Pointer<ffi.Int8>.allocate(count: -1)); |
| } |