119 lines
3.1 KiB
JavaScript
119 lines
3.1 KiB
JavaScript
// Flags: --experimental-wasi-unstable-preview1
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { WASI } = require('wasi');
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const fixtures = require('../common/fixtures');
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const bufferSource = fixtures.readSync('simple.wasm');
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(async () => {
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{
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// Verify that a WebAssembly.Instance is passed in.
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const wasi = new WASI();
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assert.throws(
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() => { wasi.start(); },
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{ code: 'ERR_INVALID_ARG_TYPE', message: /\bWebAssembly\.Instance\b/ }
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);
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}
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{
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// Verify that the passed instance has an exports objects.
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const wasi = new WASI({});
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const wasm = await WebAssembly.compile(bufferSource);
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const instance = await WebAssembly.instantiate(wasm);
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Object.defineProperty(instance, 'exports', { get() { return null; } });
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assert.throws(
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() => { wasi.start(instance); },
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{
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code: 'ERR_INVALID_ARG_TYPE',
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message: /"instance\.exports" property must be of type object/
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}
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);
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}
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{
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// Verify that a _start() export was passed.
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const wasi = new WASI({});
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const wasm = await WebAssembly.compile(bufferSource);
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const instance = await WebAssembly.instantiate(wasm);
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Object.defineProperty(instance, 'exports', { get() { return {}; } });
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assert.throws(
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() => { wasi.start(instance); },
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{
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code: 'ERR_INVALID_ARG_TYPE',
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message: /"instance\.exports\._start" property must be of type function/
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}
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);
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}
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{
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// Verify that an _initialize export was not passed.
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const wasi = new WASI({});
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const wasm = await WebAssembly.compile(bufferSource);
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const instance = await WebAssembly.instantiate(wasm);
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Object.defineProperty(instance, 'exports', {
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get() {
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return {
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_start() {},
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_initialize() {}
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};
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}
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});
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assert.throws(
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() => { wasi.start(instance); },
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{
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code: 'ERR_INVALID_ARG_TYPE',
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message: /"instance\.exports\._initialize" property must be undefined/
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}
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);
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}
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{
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// Verify that a memory export was passed.
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const wasi = new WASI({});
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const wasm = await WebAssembly.compile(bufferSource);
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const instance = await WebAssembly.instantiate(wasm);
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Object.defineProperty(instance, 'exports', {
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get() { return { _start() {} }; }
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});
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assert.throws(
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() => { wasi.start(instance); },
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{
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code: 'ERR_INVALID_ARG_TYPE',
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message: /"instance\.exports\.memory" property .+ WebAssembly\.Memory/
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}
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);
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}
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{
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// Verify that start() can only be called once.
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const wasi = new WASI({});
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const wasm = await WebAssembly.compile(bufferSource);
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const instance = await WebAssembly.instantiate(wasm);
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Object.defineProperty(instance, 'exports', {
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get() {
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return {
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_start() {},
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memory: new WebAssembly.Memory({ initial: 1 })
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};
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}
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});
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wasi.start(instance);
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assert.throws(
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() => { wasi.start(instance); },
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{
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code: 'ERR_WASI_ALREADY_STARTED',
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message: /^WASI instance has already started$/
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}
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);
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}
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})().then(common.mustCall());
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