testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/no-coop-coep.https.any.js

   1 // META: global=window,worker
   2
   3 test(() => {
   4   // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
   5   assert_equals(globalThis.SharedArrayBuffer, undefined);
   6   assert_false("SharedArrayBuffer" in globalThis);
   7 }, "SharedArrayBuffer constructor does not exist without COOP+COEP");
   8
   9 test(() => {
  10   // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
  11   const sab = new WebAssembly.Memory({ shared:true, initial:1, maximum:1 }).buffer;
  12   const channel = new MessageChannel();
  13   assert_throws_dom("DataCloneError", () => channel.port1.postMessage(sab));
  14 }, "SharedArrayBuffer over MessageChannel without COOP+COEP");
  15
  16 test(() => {
  17   // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
  18   const sab = new WebAssembly.Memory({ shared:true, initial:1, maximum:1 }).buffer;
  19   const channel = new BroadcastChannel("Is mir egal");
  20   assert_throws_dom("DataCloneError", () => channel.postMessage(sab));
  21 }, "SharedArrayBuffer over BroadcastChannel without COOP+COEP");
  22
  23 if (self.GLOBAL.isWindow()) {
  24   test(() => {
  25     // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
  26     const sab = new WebAssembly.Memory({ shared:true, initial:1, maximum:1 }).buffer;
  27     assert_throws_dom("DataCloneError", () => self.postMessage(sab));
  28   }, "SharedArrayBuffer over postMessage() without COOP+COEP");
  29 }
  30
  31 test(() => {
  32   assert_false(self.crossOriginIsolated);
  33 }, "Bonus: self.crossOriginIsolated");