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// TODO: it would be nice to support `idl_array.add_objects`
function fetch_text(url) {
return fetch(url).then(function (r) {
if (!r.ok) {
throw new Error("Error fetching " + url + ".");
}
return r.text();
});
}
/**
* idl_test_shadowrealm is a promise_test wrapper that handles the fetching of the IDL, and
* running the code in a `ShadowRealm`, avoiding repetitive boilerplate.
*
* @see https://github.com/tc39/proposal-shadowrealm
* @param {String[]} srcs Spec name(s) for source idl files (fetched from
* /interfaces/{name}.idl).
* @param {String[]} deps Spec name(s) for dependency idl files (fetched
* from /interfaces/{name}.idl). Order is important - dependencies from
* each source will only be included if they're already know to be a
* dependency (i.e. have already been seen).
*/
function idl_test_shadowrealm(srcs, deps) {
const script_urls = [
"/resources/testharness.js",
"/resources/WebIDLParser.js",
"/resources/idlharness.js",
];
promise_setup(async t => {
const realm = new ShadowRealm();
// https://github.com/web-platform-tests/wpt/issues/31996
realm.evaluate("globalThis.self = globalThis; undefined;");
realm.evaluate(`
globalThis.self.GLOBAL = {
isWindow: function() { return false; },
isWorker: function() { return false; },
isShadowRealm: function() { return true; },
};
`);
const ss = await Promise.all(script_urls.map(url => fetch_text(url)));
for (const s of ss) {
realm.evaluate(s);
}
const specs = await Promise.all(srcs.concat(deps).map(spec => {
return fetch_text("/interfaces/" + spec + ".idl");
}));
const idls = JSON.stringify(specs);
const results = JSON.parse(await new Promise(
realm.evaluate(`(resolve,reject) => {
const idls = ${idls};
add_completion_callback(function (tests, harness_status, asserts_run) {
resolve(JSON.stringify(tests));
});
// Without the wrapping test, testharness.js will think it's done after it has run
// the first idlharness test.
test(() => {
const idl_array = new IdlArray();
for (let i = 0; i < ${srcs.length}; i++) {
idl_array.add_idls(idls[i]);
}
for (let i = ${srcs.length}; i < ${srcs.length + deps.length}; i++) {
idl_array.add_dependency_idls(idls[i]);
}
idl_array.test();
}, "setup");
}`)
));
// We ran the tests in the ShadowRealm and gathered the results. Now treat them as if
// we'd run them directly here, so we can see them.
for (const {name, status, message} of results) {
// TODO: make this an API in testharness.js - needs RFC?
promise_test(t => {t.set_status(status, message); t.phase = t.phases.HAS_RESULT; t.done()}, name);
}
}, "outer setup");
}
// vim: set expandtab shiftwidth=4 tabstop=4 foldmarker=@{,@} foldmethod=marker:
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