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// META: global=window,dedicatedworker,jsshell
// META: script=/wasm/jsapi/wasm-module-builder.js
let emptyModuleBinary;
setup(() => {
emptyModuleBinary = new WasmModuleBuilder().toBuffer();
});
test(() => {
assert_throws_js(TypeError, () => WebAssembly.validate());
}, "Missing argument");
test(() => {
const invalidArguments = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
ArrayBuffer,
ArrayBuffer.prototype,
Array.from(emptyModuleBinary),
];
for (const argument of invalidArguments) {
assert_throws_js(TypeError, () => WebAssembly.validate(argument),
`validate(${format_value(argument)})`);
}
}, "Invalid arguments");
test(() => {
const fn = WebAssembly.validate;
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly,
];
for (const thisValue of thisValues) {
assert_true(fn.call(thisValue, emptyModuleBinary), `this=${format_value(thisValue)}`);
}
}, "Branding");
const modules = [
// Incomplete header.
[[], false],
[[0x00], false],
[[0x00, 0x61], false],
[[0x00, 0x61, 0x73], false],
[[0x00, 0x61, 0x73, 0x6d], false],
[[0x00, 0x61, 0x73, 0x6d, 0x01], false],
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00], false],
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00], false],
// Complete header.
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00], true],
// Invalid version.
[[0x00, 0x61, 0x73, 0x6d, 0x00, 0x00, 0x00, 0x00], false],
[[0x00, 0x61, 0x73, 0x6d, 0x02, 0x00, 0x00, 0x00], false],
// Nameless custom section.
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00], false],
// Custom section with empty name.
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00], true],
// Custom section with name "a".
[[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x01, 0x61], true],
];
const bufferTypes = [
Uint8Array,
Int8Array,
Uint16Array,
Int16Array,
Uint32Array,
Int32Array,
];
for (const [module, expected] of modules) {
const name = module.map(n => n.toString(16)).join(" ");
for (const bufferType of bufferTypes) {
if (module.length % bufferType.BYTES_PER_ELEMENT === 0) {
test(() => {
const bytes = new Uint8Array(module);
const moduleBuffer = new bufferType(bytes.buffer);
assert_equals(WebAssembly.validate(moduleBuffer), expected);
}, `Validating module [${name}] in ${bufferType.name}`);
}
}
}
test(() => {
assert_true(WebAssembly.validate(emptyModuleBinary, {}));
}, "Stray argument");
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