Add tests for new Worker() and worker.postMessage() to happen in para…

…llel with main page executing JS code. Resolves whatwg/html#10228.
juj · Apr 3, 2024 · a8a022a · a8a022a
1 parent ad97a5b
commit a8a022a
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diff --git a/workers/Worker-creation-happens-in-parallel.html b/workers/Worker-creation-happens-in-parallel.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<title>Test that creation of a "new Worker()" will occur in parallel to the main JS thread performing other computation, and can be joined with.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+promise_test(t => {
+  return new Promise(resolve => {
+    let worker = new Worker("support/Worker-creation-happens-in-parallel.js");
+    let sab = new Uint8Array(new SharedArrayBuffer(16));
+    worker.postMessage(sab);
+    while(sab[0] != 1) /*wait to join with the result*/;
+    resolve();
+  });
+}, 'Tests that creation of a "new Worker()" will occur in parallel');
+</script>
diff --git a/workers/Worker-creation-happens-in-parallel.html.headers b/workers/Worker-creation-happens-in-parallel.html.headers
@@ -0,0 +1,2 @@
+Cross-Origin-Opener-Policy:same-origin
+Cross-Origin-Embedder-Policy:require-corp
diff --git a/workers/Worker-postMessage-happens-in-parallel.html b/workers/Worker-postMessage-happens-in-parallel.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<title>Test that calling "worker.postMessage()" will occur truly in parallel to the main JS thread performing other computation.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+promise_test(t => {
+  return new Promise(resolve => {
+    let worker = new Worker("support/Worker-postMessage-happens-in-parallel.js");
+    worker.postMessage('init');
+    worker.onmessage = () => {
+      let sab = new Uint8Array(new SharedArrayBuffer(16));
+      worker.postMessage(sab);
+      while(sab[0] != 1) /*wait to join with the result*/;
+      resolve();
+    };
+  });
+}, 'Tests that calling "worker.postMessage()" will occur truly in parallel to the main JS thread');
+</script>
diff --git a/workers/Worker-postMessage-happens-in-parallel.html.headers b/workers/Worker-postMessage-happens-in-parallel.html.headers
@@ -0,0 +1,2 @@
+Cross-Origin-Opener-Policy:same-origin
+Cross-Origin-Embedder-Policy:require-corp
diff --git a/workers/support/Worker-creation-happens-in-parallel.js b/workers/support/Worker-creation-happens-in-parallel.js
@@ -0,0 +1,3 @@
+onmessage = (e) => {
+  e.data[0] = 1;
+}
diff --git a/workers/support/Worker-postMessage-happens-in-parallel.js b/workers/support/Worker-postMessage-happens-in-parallel.js
@@ -0,0 +1,7 @@
+onmessage = (e) => {
+  if (e.data == 'init') {
+    postMessage(0);
+  } else {
+    e.data[0] = 1;
+  }
+}
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		Cross-Origin-Opener-Policy:same-origin
		Cross-Origin-Embedder-Policy:require-corp