v8/test/mjsunit/wasm/async-compile.js
Clemens Hammacher 1e1ca02865 [wasm] Slightly improve async tests
These tests are also used for streaming. This CL changes the test to
actually output the exception that unexpectedly happened.

R=ahaas@chromium.org

Bug: v8:7921
Change-Id: Ia9c91a7d3d9452f9c0180329a5434f049b56c3c8
Reviewed-on: https://chromium-review.googlesource.com/c/1319755
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57284}
2018-11-06 15:09:52 +00:00

81 lines
2.6 KiB
JavaScript

// 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.
// Flags: --wasm-async-compilation --expose-wasm --allow-natives-syntax
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
async function assertCompiles(buffer) {
var module = await WebAssembly.compile(buffer);
assertInstanceof(module, WebAssembly.Module);
}
async function assertCompileError(buffer) {
try {
await WebAssembly.compile(buffer);
assertUnreachable();
} catch (e) {
if (!(e instanceof WebAssembly.CompileError)) throw e;
}
}
assertPromiseResult(async function basicCompile() {
let ok_buffer = (() => {
var builder = new WasmModuleBuilder();
builder.addFunction('f', kSig_i_v)
.addBody([kExprI32Const, 42])
.exportAs('f');
return builder.toBuffer();
})();
// The OK buffer validates and can be made into a module.
assertTrue(WebAssembly.validate(ok_buffer));
let ok_module = new WebAssembly.Module(ok_buffer);
assertTrue(ok_module instanceof WebAssembly.Module);
// The bad buffer does not validate and cannot be made into a module.
let bad_buffer = new ArrayBuffer(0);
assertFalse(WebAssembly.validate(bad_buffer));
assertThrows(
() => new WebAssembly.Module(bad_buffer), WebAssembly.CompileError);
let kNumCompiles = 3;
// Three compilations of the OK module should succeed.
for (var i = 0; i < kNumCompiles; i++) {
await assertCompiles(ok_buffer);
}
// Three compilations of the bad module should fail.
for (var i = 0; i < kNumCompiles; i++) {
await assertCompileError(bad_buffer);
}
}());
assertPromiseResult(async function badFunctionInTheMiddle() {
// We had an error where an exception was generated by a background task and
// later thrown in a foreground task. The handle to the exception died
// between, since the HandleScope was left.
// This test reproduced that error.
let builder = new WasmModuleBuilder();
let sig = builder.addType(kSig_i_v);
for (var i = 0; i < 10; ++i) {
builder.addFunction('a' + i, sig).addBody([kExprI32Const, 42]);
}
builder.addFunction('bad', sig).addBody([]);
for (var i = 0; i < 10; ++i) {
builder.addFunction('b' + i, sig).addBody([kExprI32Const, 42]);
}
let buffer = builder.toBuffer();
await assertCompileError(buffer);
}());
assertPromiseResult(async function importWithoutCode() {
// Regression test for https://crbug.com/898310.
let builder = new WasmModuleBuilder();
builder.addImport('m', 'q', kSig_i_i);
await builder.asyncInstantiate({'m': {'q': i => i}});
}());