| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| load('test/mjsunit/wasm/wasm-constants.js'); |
| load('test/mjsunit/wasm/wasm-module-builder.js'); |
| |
| let builder = new WasmModuleBuilder(); |
| builder.addCustomSection('BBBB', []); |
| builder.addCustomSection('AAAA', new Array(32).fill(0)); |
| let buffer = builder.toBuffer(); |
| // Shrink the buffer by 30 bytes (content of the unknown section named 'AAAA'). |
| buffer = buffer.slice(0, buffer.byteLength - 30); |
| // Instantiation should fail on the truncated buffer. |
| assertThrows(() => new WebAssembly.Module(buffer), WebAssembly.CompileError); |
