Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 1363 insertions, 0 deletions

diff --git a/dom/worklet/tests/common.js b/dom/worklet/tests/common.js
new file mode 100644
index 0000000000..3841a5f73b
--- /dev/null
+++ b/dom/worklet/tests/common.js
@@ -0,0 +1,26 @@
+window.onload = async function () {
+  // We are the parent. Let's load the test.
+  if (parent == this || !location.search.includes("worklet_iframe")) {
+    SimpleTest.waitForExplicitFinish();
+
+    // configureTest is optional
+    if (window.configureTest) {
+      await window.configureTest();
+    }
+
+    var iframe = document.createElement("iframe");
+    iframe.src = location.href + "?worklet_iframe";
+    document.body.appendChild(iframe);
+
+    return;
+  }
+
+  // Here we are in the iframe.
+  window.SimpleTest = parent.SimpleTest;
+  window.is = parent.is;
+  window.isnot = parent.isnot;
+  window.ok = parent.ok;
+  window.info = parent.info;
+
+  runTestInIframe();
+};
diff --git a/dom/worklet/tests/dynamic_import.js b/dom/worklet/tests/dynamic_import.js
new file mode 100644
index 0000000000..a5196d212f
--- /dev/null
+++ b/dom/worklet/tests/dynamic_import.js
@@ -0,0 +1,7 @@
+import("./empty-worklet-script.js")
+  .then(() => {
+    console.log("Fail");
+  })
+  .catch(e => {
+    console.log(e.name + ": Success");
+  });
diff --git a/dom/worklet/tests/invalid_specifier.mjs b/dom/worklet/tests/invalid_specifier.mjs
new file mode 100644
index 0000000000..128b60ffa6
--- /dev/null
+++ b/dom/worklet/tests/invalid_specifier.mjs
@@ -0,0 +1,3 @@
+/* eslint-disable import/no-unassigned-import */
+/* eslint-disable import/no-unresolved */
+import "foo";
diff --git a/dom/worklet/tests/mochitest.toml b/dom/worklet/tests/mochitest.toml
new file mode 100644
index 0000000000..2515355476
--- /dev/null
+++ b/dom/worklet/tests/mochitest.toml
@@ -0,0 +1,58 @@
+[DEFAULT]
+scheme = "https"
+support-files = ["common.js"]
+
+["test_audioWorklet.html"]
+support-files = ["worklet_audioWorklet.js"]
+
+["test_audioWorkletGlobalScopeRegisterProcessor.html"]
+support-files = ["worklet_test_audioWorkletGlobalScopeRegisterProcessor.js"]
+
+["test_audioWorklet_WASM.html"]
+skip-if = ["release_or_beta"] # requires dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled
+support-files = ["worklet_audioWorklet_WASM.js"]
+
+["test_audioWorklet_WASM_Features.html"]
+support-files = ["worklet_audioWorklet_WASM_features.js"]
+
+["test_audioWorklet_insecureContext.html"]
+scheme = "http"
+skip-if = [
+  "http3",
+  "http2",
+]
+
+["test_audioWorklet_options.html"]
+skip-if = ["release_or_beta"] # requires dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled
+support-files = ["worklet_audioWorklet_options.js"]
+
+["test_basic.html"]
+
+["test_console.html"]
+support-files = ["worklet_console.js"]
+
+["test_dump.html"]
+support-files = ["worklet_dump.js"]
+
+["test_dynamic_import.html"]
+support-files = ["dynamic_import.js"]
+
+["test_exception.html"]
+support-files = [
+  "worklet_exception.js",
+  "invalid_specifier.mjs",
+]
+
+["test_fetch_failed.html"]
+support-files = ["specifier_with_user.mjs"]
+
+["test_import_with_cache.html"]
+skip-if = ["verify"]
+support-files = ["server_import_with_cache.sjs"]
+
+["test_paintWorklet.html"]
+skip-if = ["release_or_beta"]
+support-files = ["worklet_paintWorklet.js"]
+
+["test_promise.html"]
+support-files = ["worklet_promise.js"]
diff --git a/dom/worklet/tests/server_import_with_cache.sjs b/dom/worklet/tests/server_import_with_cache.sjs
new file mode 100644
index 0000000000..ed34a7a72f
--- /dev/null
+++ b/dom/worklet/tests/server_import_with_cache.sjs
@@ -0,0 +1,12 @@
+function handleRequest(request, response) {
+  response.setHeader("Content-Type", "text/javascript", false);
+
+  var state = getState("alreadySent");
+  if (!state) {
+    setState("alreadySent", "1");
+  } else {
+    response.setStatusLine("1.1", 404, "Not Found");
+  }
+
+  response.write("42");
+}
diff --git a/dom/worklet/tests/specifier_with_user.mjs b/dom/worklet/tests/specifier_with_user.mjs
new file mode 100644
index 0000000000..3d9bdb45cf
--- /dev/null
+++ b/dom/worklet/tests/specifier_with_user.mjs
@@ -0,0 +1,3 @@
+/* eslint-disable import/no-unassigned-import */
+/* eslint-disable import/no-unresolved */
+import "http://user@example1.com/a.js";
diff --git a/dom/worklet/tests/test_audioWorklet.html b/dom/worklet/tests/test_audioWorklet.html
new file mode 100644
index 0000000000..0dfb6fcf15
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorklet.html
@@ -0,0 +1,48 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for AudioWorklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+
+function configureTest() {
+  const ConsoleAPIStorage = SpecialPowers.Cc[
+    "@mozilla.org/consoleAPI-storage;1"
+  ].getService(SpecialPowers.Ci.nsIConsoleAPIStorage);
+
+  function consoleListener() {
+    this.observe = this.observe.bind(this);
+    ConsoleAPIStorage.addLogEventListener(this.observe, SpecialPowers.wrap(document).nodePrincipal);
+  }
+
+  consoleListener.prototype  = {
+    observe(aSubject) {
+      var obj = aSubject.wrappedJSObject;
+      if (obj.arguments[0] == "So far so good") {
+        ok(true, "Message received \\o/");
+
+        ConsoleAPIStorage.removeLogEventListener(this.observe);
+        SimpleTest.finish();
+      }
+    }
+  }
+
+  var cl = new consoleListener();
+}
+
+// This function is called into an iframe.
+function runTestInIframe() {
+  ok(window.isSecureContext, "Test should run in secure context");
+  var audioContext = new AudioContext();
+  ok(audioContext.audioWorklet instanceof AudioWorklet,
+     "AudioContext.audioWorklet should be an instance of AudioWorklet");
+  audioContext.audioWorklet.addModule("worklet_audioWorklet.js")
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_audioWorkletGlobalScopeRegisterProcessor.html b/dom/worklet/tests/test_audioWorkletGlobalScopeRegisterProcessor.html
new file mode 100644
index 0000000000..bce6eca292
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorkletGlobalScopeRegisterProcessor.html
@@ -0,0 +1,73 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for AudioWorklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+
+function configureTest() {
+
+  var expected_errors = [
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: Argument 2 is not a constructor.",
+    "NotSupportedError: AudioWorkletGlobalScope.registerProcessor: Argument 1 should not be an empty string.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: Argument 2 is not an object.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: Element 0 in parameterDescriptors can't be converted to a dictionary.",
+    "NotSupportedError: AudioWorkletGlobalScope.registerProcessor: Argument 1 is invalid: a class with the same name is already registered.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: Missing required 'name' member of AudioParamDescriptor.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: 'defaultValue' member of AudioParamDescriptor is not a finite floating-point value.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: 'minValue' member of AudioParamDescriptor is not a finite floating-point value.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: 'maxValue' member of AudioParamDescriptor is not a finite floating-point value.",
+    "NotSupportedError: AudioWorkletGlobalScope.registerProcessor: Duplicated name \"test\" in parameterDescriptors.",
+    "TypeError: AudioWorkletGlobalScope.registerProcessor: Element 0 in parameterDescriptors can't be converted to a dictionary.",
+    "InvalidStateError: AudioWorkletGlobalScope.registerProcessor: In parameterDescriptors, test defaultValue is out of the range defined by minValue and maxValue.",
+    "InvalidStateError: AudioWorkletGlobalScope.registerProcessor: In parameterDescriptors, test defaultValue is out of the range defined by minValue and maxValue.",
+    "InvalidStateError: AudioWorkletGlobalScope.registerProcessor: In parameterDescriptors, test minValue should be smaller than maxValue.",
+    ];
+
+  var expected_errors_i = 0;
+
+  const ConsoleAPIStorage = SpecialPowers.Cc[
+    "@mozilla.org/consoleAPI-storage;1"
+  ].getService(SpecialPowers.Ci.nsIConsoleAPIStorage);
+
+  function consoleListener() {
+    this.observe = this.observe.bind(this);
+    ConsoleAPIStorage.addLogEventListener(this.observe, SpecialPowers.wrap(document).nodePrincipal);
+  }
+
+  consoleListener.prototype  = {
+    observe(aSubject) {
+      var obj = aSubject.wrappedJSObject;
+      if (obj.arguments[0] == expected_errors[expected_errors_i]) {
+        ok(true, "Expected error received: " + obj.arguments[0]);
+        expected_errors_i++;
+      }
+
+      if (expected_errors_i == expected_errors.length) {
+        // All errors have been received, this test has been completed
+        // succesfully!
+        ConsoleAPIStorage.removeLogEventListener(this.observe);
+        SimpleTest.finish();
+      }
+    }
+  }
+
+  var cl = new consoleListener();
+}
+
+// This function is called into an iframe.
+function runTestInIframe() {
+  ok(window.isSecureContext, "Test should run in secure context");
+  var audioContext = new AudioContext();
+  ok(audioContext.audioWorklet instanceof AudioWorklet,
+     "AudioContext.audioWorklet should be an instance of AudioWorklet");
+  audioContext.audioWorklet.addModule("worklet_test_audioWorkletGlobalScopeRegisterProcessor.js")
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_audioWorklet_WASM.html b/dom/worklet/tests/test_audioWorklet_WASM.html
new file mode 100644
index 0000000000..0180465118
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorklet_WASM.html
@@ -0,0 +1,84 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for AudioWorklet + WASM</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+
+function configureTest() {
+  return SpecialPowers.pushPrefEnv(
+    {"set": [
+             ["dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled", true],
+             ["browser.tabs.remote.useCrossOriginOpenerPolicy", true],
+             ["browser.tabs.remote.useCrossOriginEmbedderPolicy", true],
+             ["javascript.options.shared_memory", true],
+    ]});
+}
+
+function create_wasmModule() {
+  return new Promise(resolve => {
+    info("Checking if we can play with WebAssembly...");
+
+    if (!SpecialPowers.Cu.getJSTestingFunctions().wasmIsSupported()) {
+      resolve(null);
+      return;
+    }
+
+    ok(WebAssembly, "WebAssembly object should exist");
+    ok(WebAssembly.compile, "WebAssembly.compile function should exist");
+
+    const wasmTextToBinary = SpecialPowers.unwrap(SpecialPowers.Cu.getJSTestingFunctions().wasmTextToBinary);
+    /*
+      js -e '
+        t = wasmTextToBinary(`
+          (module
+            (func $foo (result i32) (i32.const 42))
+            (export "foo" (func $foo))
+          )
+        `);
+        print(t)
+      '
+    */
+    // eslint-disable-next-line
+    const fooModuleCode = new Uint8Array([0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,2,1,0,7,7,1,3,102,111,111,0,0,10,6,1,4,0,65,42,11,0,13,4,110,97,109,101,1,6,1,0,3,102,111,111]);
+
+    WebAssembly.compile(fooModuleCode).then(m => {
+      ok(m instanceof WebAssembly.Module, "The WasmModule has been compiled.");
+      resolve(m);
+    }, () => {
+      ok(false, "The compilation of the wasmModule failed.");
+      resolve(null);
+    });
+  });
+}
+
+function runTestInIframe() {
+  let audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule("worklet_audioWorklet_WASM.js")
+  .then(() => create_wasmModule())
+  .then(wasmModule => {
+    const node = new AudioWorkletNode(audioContext, 'wasm');
+    let msgId = 0;
+    node.port.onmessage = e => {
+      if (msgId++ == 0) {
+        ok(e.data.wasmModule instanceof WebAssembly.Module, "WasmModule received");
+      } else {
+        ok(e.data.sab instanceof SharedArrayBuffer, "SAB received");
+        SimpleTest.finish();
+      }
+    }
+
+    node.port.postMessage({wasmModule});
+    node.port.postMessage({sab: new SharedArrayBuffer(1024)});
+    node.connect(audioContext.destination);
+  });
+}
+</script>
+
+</body>
+</html>
diff --git a/dom/worklet/tests/test_audioWorklet_WASM_Features.html b/dom/worklet/tests/test_audioWorklet_WASM_Features.html
new file mode 100644
index 0000000000..944983a5d3
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorklet_WASM_Features.html
@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for AudioWorklet + WASM features</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+function runTestInIframe() {
+  let audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule("worklet_audioWorklet_WASM_features.js")
+  .then(() => {
+    const node = new AudioWorkletNode(audioContext, 'wasm');
+    node.port.onmessage = e => {
+      let result = e.data;
+      ok(result === true, "Compilation succeeded");
+      SimpleTest.finish();
+    }
+    node.connect(audioContext.destination);
+  });
+}
+</script>
+
+</body>
+</html>
diff --git a/dom/worklet/tests/test_audioWorklet_insecureContext.html b/dom/worklet/tests/test_audioWorklet_insecureContext.html
new file mode 100644
index 0000000000..ac27578b7c
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorklet_insecureContext.html
@@ -0,0 +1,22 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for No AudioWorklet in insecure context</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  ok(!window.isSecureContext, "Test should run in an insecure context");
+  var audioContext = new AudioContext();
+  ok(!("audioWorklet" in audioContext),
+     "AudioWorklet shouldn't be defined in AudioContext in a insecure context");
+  SimpleTest.finish();
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_audioWorklet_options.html b/dom/worklet/tests/test_audioWorklet_options.html
new file mode 100644
index 0000000000..1b4b5c0077
--- /dev/null
+++ b/dom/worklet/tests/test_audioWorklet_options.html
@@ -0,0 +1,80 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for AudioWorklet + Options + WASM</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<script type="application/javascript">
+
+function configureTest() {
+  return SpecialPowers.pushPrefEnv(
+    {"set": [
+             ["dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled", true],
+             ["browser.tabs.remote.useCrossOriginOpenerPolicy", true],
+             ["browser.tabs.remote.useCrossOriginEmbedderPolicy", true],
+             ["javascript.options.shared_memory", true],
+    ]});
+}
+
+function create_wasmModule() {
+  return new Promise(resolve => {
+    info("Checking if we can play with WebAssembly...");
+
+    if (!SpecialPowers.Cu.getJSTestingFunctions().wasmIsSupported()) {
+      resolve(null);
+      return;
+    }
+
+    ok(WebAssembly, "WebAssembly object should exist");
+    ok(WebAssembly.compile, "WebAssembly.compile function should exist");
+
+    const wasmTextToBinary = SpecialPowers.unwrap(SpecialPowers.Cu.getJSTestingFunctions().wasmTextToBinary);
+
+    /*
+      js -e '
+        t = wasmTextToBinary(`
+          (module
+            (func $foo (result i32) (i32.const 42))
+            (export "foo" (func $foo))
+          )
+        `);
+        print(t)
+      '
+    */
+    // eslint-disable-next-line
+    const fooModuleCode = new Uint8Array([0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,2,1,0,7,7,1,3,102,111,111,0,0,10,6,1,4,0,65,42,11,0,13,4,110,97,109,101,1,6,1,0,3,102,111,111]);
+
+    WebAssembly.compile(fooModuleCode).then(m => {
+      ok(m instanceof WebAssembly.Module, "The WasmModule has been compiled.");
+      resolve(m);
+    }, () => {
+      ok(false, "The compilation of the wasmModule failed.");
+      resolve(null);
+    });
+  });
+}
+
+function runTestInIframe() {
+  let audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule("worklet_audioWorklet_options.js")
+  .then(() => create_wasmModule())
+  .then(wasmModule => {
+    const node = new AudioWorkletNode(audioContext, 'options', { processorOptions: {
+      wasmModule, sab: new SharedArrayBuffer(1024),
+    }});
+    node.port.onmessage = e => {
+      ok(e.data.wasmModule instanceof WebAssembly.Module, "WasmModule received");
+      ok(e.data.sab instanceof SharedArrayBuffer, "SAB received");
+      SimpleTest.finish();
+    }
+
+    node.connect(audioContext.destination);
+  });
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_basic.html b/dom/worklet/tests/test_basic.html
new file mode 100644
index 0000000000..989f6f8866
--- /dev/null
+++ b/dom/worklet/tests/test_basic.html
@@ -0,0 +1,59 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Worklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  ok(!!audioContext.audioWorklet, "audioContext.audioWorklet exists");
+
+  // First loading
+  audioContext.audioWorklet.addModule("common.js")
+  .then(() => {
+    ok(true, "Import should load a resource.");
+  })
+
+  // Second loading - same file
+  .then(() => {
+    return audioContext.audioWorklet.addModule("common.js")
+  })
+  .then(() => {
+    ok(true, "Import should load a resource.");
+  })
+
+  // 3rd loading - a network error
+  .then(() => {
+    return audioContext.audioWorklet.addModule("404.js");
+  })
+  .then(() => {
+    ok(false, "The loading should fail.");
+  }, () => {
+    ok(true, "The loading should fail.");
+  })
+
+  // 4th loading - a network error
+  .then(() => {
+    return audioContext.audioWorklet.addModule("404.js");
+  })
+  .then(() => {
+    ok(false, "The loading should fail.");
+  }, () => {
+    ok(true, "The loading should fail.");
+  })
+
+  // done
+  .then(() => {
+    SimpleTest.finish();
+  });
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_console.html b/dom/worklet/tests/test_console.html
new file mode 100644
index 0000000000..5e4e43daa0
--- /dev/null
+++ b/dom/worklet/tests/test_console.html
@@ -0,0 +1,49 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Worklet - Console</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+const WORKLET_SCRIPT = "worklet_console.js";
+
+function configureTest() {
+  const ConsoleAPIStorage = SpecialPowers.Cc[
+    "@mozilla.org/consoleAPI-storage;1"
+  ].getService(SpecialPowers.Ci.nsIConsoleAPIStorage);
+
+  function consoleListener() {
+    this.observe = this.observe.bind(this);
+    ConsoleAPIStorage.addLogEventListener(this.observe, SpecialPowers.wrap(document).nodePrincipal);
+  }
+
+  consoleListener.prototype  = {
+    observe(aSubject) {
+      var obj = aSubject.wrappedJSObject;
+      if (obj.arguments[0] == "Hello world from a worklet") {
+        ok(true, "Message received \\o/");
+        is(obj.filename,
+           new URL(WORKLET_SCRIPT, document.baseURI).toString());
+
+        ConsoleAPIStorage.removeLogEventListener(this.observe);
+        SimpleTest.finish();
+      }
+    }
+  }
+
+  var cl = new consoleListener();
+}
+
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule(WORKLET_SCRIPT);
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_dump.html b/dom/worklet/tests/test_dump.html
new file mode 100644
index 0000000000..9ee0a378b5
--- /dev/null
+++ b/dom/worklet/tests/test_dump.html
@@ -0,0 +1,23 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Worklet - Console</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule("worklet_dump.js")
+  .then(() => {
+    ok(true, "All good!");
+    SimpleTest.finish();
+  });
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_dynamic_import.html b/dom/worklet/tests/test_dynamic_import.html
new file mode 100644
index 0000000000..9d87a7a709
--- /dev/null
+++ b/dom/worklet/tests/test_dynamic_import.html
@@ -0,0 +1,50 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test import() should throw a TypeError for Worklets</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+const WORKLET_SCRIPT = "dynamic_import.js";
+
+function configureTest() {
+  const ConsoleAPIStorage = SpecialPowers.Cc[
+    "@mozilla.org/consoleAPI-storage;1"
+  ].getService(SpecialPowers.Ci.nsIConsoleAPIStorage);
+
+  // We use console API to check if a TypeError has been thrown, as worklets
+  // have limitations to post the result back to the main document:
+  // Worklets have a different global, and they don't have postMessage() APIs,
+  // and static import SimpleTest.js in worklets also don't work.
+  function consoleListener() {
+    this.observe = this.observe.bind(this);
+    ConsoleAPIStorage.addLogEventListener(this.observe, SpecialPowers.wrap(document).nodePrincipal);
+  }
+
+  consoleListener.prototype  = {
+    observe(aSubject) {
+      var obj = aSubject.wrappedJSObject;
+      info("Got console message:" + obj.arguments[0]);
+      is(TypeError.name + ": Success", obj.arguments[0], "import() should throw");
+
+      ConsoleAPIStorage.removeLogEventListener(this.observe);
+      SimpleTest.finish();
+    }
+  }
+
+  var cl = new consoleListener();
+}
+
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule(WORKLET_SCRIPT);
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_exception.html b/dom/worklet/tests/test_exception.html
new file mode 100644
index 0000000000..83d4ce4fd2
--- /dev/null
+++ b/dom/worklet/tests/test_exception.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Exception in Worklet script</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  let error;
+
+  // This loading should fail
+  var audioContext = new AudioContext();
+  audioContext.audioWorklet.addModule("404.js")
+  .then(() => {
+    ok(false, "We should not be called!");
+  }, () => {
+    ok(true, "The script thrown but we are still here.");
+  })
+
+  // This should throw from JS
+  .then(() => {
+    return audioContext.audioWorklet.addModule("worklet_exception.js")
+  })
+  .then(() => {
+    ok(true, "The script threw but we are still here.");
+  }, () => {
+    ok(false, "We should not be called!");
+  })
+
+  // invalid_specifier.mjs will throw a TypeError.
+  .then(() => {
+    return audioContext.audioWorklet.addModule("invalid_specifier.mjs")
+  })
+  .then(() => {
+    ok(false, "We should not be called!");
+  }, (e) => {
+    ok(true, "The script thrown but we are still here.");
+    ok(e instanceof TypeError, "The error should be a TypeError.");
+    error = e;
+  })
+
+  // import "invalid_specifier.mjs" again, this will reuse the response from the
+  // previous addModule("invalid_specifier.mjs") call.
+  .then(() => {
+    return audioContext.audioWorklet.addModule("invalid_specifier.mjs")
+  })
+  .then(() => {
+    ok(false, "We should not be called!");
+  }, (e) => {
+    ok(true, "The script thrown but we are still here.");
+    ok (e === error, "The TypeError object should be reused.");
+  })
+
+  .then(() => {
+    SimpleTest.finish();
+  });
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_fetch_failed.html b/dom/worklet/tests/test_fetch_failed.html
new file mode 100644
index 0000000000..e60b332745
--- /dev/null
+++ b/dom/worklet/tests/test_fetch_failed.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test fetch an child module script with an invalid uri for Worklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  ok(!!audioContext.audioWorklet, "audioContext.audioWorklet exists");
+
+  audioContext.audioWorklet.addModule("specifier_with_user.mjs")
+  .then(() => {
+    ok(false, "Error: load shouldn't succeed.");
+  }, () => {
+    ok(true, "OK: load should fail.");
+  })
+
+  // done
+  .then(() => {
+    SimpleTest.finish();
+  });
+}
+
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_import_with_cache.html b/dom/worklet/tests/test_import_with_cache.html
new file mode 100644
index 0000000000..17c5be3b21
--- /dev/null
+++ b/dom/worklet/tests/test_import_with_cache.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Worklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+// This function is called into an iframe.
+function runTestInIframe() {
+  var audioContext = new AudioContext();
+  function loading() {
+    audioContext.audioWorklet.addModule("server_import_with_cache.sjs")
+    .then(() => {
+      ok(true, "Import should load a resource.");
+    }, () => {
+      ok(false, "Import should load a resource.");
+    })
+    .then(() => {
+      done();
+    });
+  }
+
+  var count = 0;
+  const MAX = 10;
+
+  function done() {
+    if (++count == MAX) {
+      SimpleTest.finish();
+    }
+  }
+
+  for (var i = 0; i < MAX; ++i) {
+    loading();
+  }
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_paintWorklet.html b/dom/worklet/tests/test_paintWorklet.html
new file mode 100644
index 0000000000..53b407e619
--- /dev/null
+++ b/dom/worklet/tests/test_paintWorklet.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for PaintWorklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+
+function configureTest() {
+  const ConsoleAPIStorage = SpecialPowers.Cc[
+    "@mozilla.org/consoleAPI-storage;1"
+  ].getService(SpecialPowers.Ci.nsIConsoleAPIStorage);
+
+  function consoleListener() {
+    this.observe = this.observe.bind(this);
+    ConsoleAPIStorage.addLogEventListener(this.observe, SpecialPowers.wrap(document).nodePrincipal);
+  }
+
+  consoleListener.prototype  = {
+    observe(aSubject) {
+      var obj = aSubject.wrappedJSObject;
+      if (obj.arguments[0] == "So far so good") {
+        ok(true, "Message received \\o/");
+
+        ConsoleAPIStorage.removeLogEventListener(this.observe);
+        SimpleTest.finish();
+      }
+    }
+  }
+
+  var cl = new consoleListener();
+
+  return SpecialPowers.pushPrefEnv({ "set": [["dom.paintWorklet.enabled", true]] });
+}
+
+// This function is called into an iframe.
+function runTestInIframe() {
+  paintWorklet.addModule("worklet_paintWorklet.js")
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/test_promise.html b/dom/worklet/tests/test_promise.html
new file mode 100644
index 0000000000..5b438ddcc2
--- /dev/null
+++ b/dom/worklet/tests/test_promise.html
@@ -0,0 +1,50 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for promise in worklet</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+
+<script type="application/javascript">
+function runTestInIframe() {
+  if (!SpecialPowers.Cu.getJSTestingFunctions().wasmIsSupported()) {
+    SimpleTest.finish();
+    return;
+  }
+
+  ok(window.isSecureContext, "Test should run in secure context");
+  var audioContext = new AudioContext();
+  ok(audioContext.audioWorklet instanceof AudioWorklet,
+     "AudioContext.audioWorklet should be an instance of AudioWorklet");
+  audioContext.audioWorklet.addModule("worklet_promise.js")
+  .then(() => {
+    const node = new AudioWorkletNode(audioContext, 'promise');
+    node.port.onmessage = e => {
+      ok(e.data instanceof WebAssembly.Module, "The WasmModule has been compiled into the worklet.");
+      SimpleTest.finish();
+    }
+
+    const wasmTextToBinary = SpecialPowers.unwrap(SpecialPowers.Cu.getJSTestingFunctions().wasmTextToBinary);
+    /*
+      js -e '
+        t = wasmTextToBinary(`
+          (module
+            (func $foo (result i32) (i32.const 42))
+            (export "foo" (func $foo))
+          )
+        `);
+        print(t)
+      '
+    */
+    // eslint-disable-next-line
+    const fooModuleCode = new Uint8Array([0,97,115,109,1,0,0,0,1,5,1,96,0,1,127,3,2,1,0,7,7,1,3,102,111,111,0,0,10,6,1,4,0,65,42,11,0,13,4,110,97,109,101,1,6,1,0,3,102,111,111]);
+
+    node.port.postMessage(fooModuleCode);
+  });
+}
+</script>
+</body>
+</html>
diff --git a/dom/worklet/tests/worklet_audioWorklet.js b/dom/worklet/tests/worklet_audioWorklet.js
new file mode 100644
index 0000000000..fa916d4359
--- /dev/null
+++ b/dom/worklet/tests/worklet_audioWorklet.js
@@ -0,0 +1,16 @@
+class DummyProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+}
+
+// We need to pass a valid AudioWorkletProcessor here, otherwise, it will fail,
+// and the console.log won't be executed
+registerProcessor("sure!", DummyProcessWorkletProcessor);
+console.log(
+  globalThis instanceof AudioWorkletGlobalScope ? "So far so good" : "error"
+);
diff --git a/dom/worklet/tests/worklet_audioWorklet_WASM.js b/dom/worklet/tests/worklet_audioWorklet_WASM.js
new file mode 100644
index 0000000000..1215b4c8d0
--- /dev/null
+++ b/dom/worklet/tests/worklet_audioWorklet_WASM.js
@@ -0,0 +1,16 @@
+class WasmProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor(...args) {
+    super(...args);
+    this.port.onmessage = e => {
+      // Let's send it back.
+      this.port.postMessage(e.data);
+    };
+  }
+
+  process(inputs, outputs, parameters) {
+    // Do nothing, output silence
+    return true;
+  }
+}
+
+registerProcessor("wasm", WasmProcessWorkletProcessor);
diff --git a/dom/worklet/tests/worklet_audioWorklet_WASM_features.js b/dom/worklet/tests/worklet_audioWorklet_WASM_features.js
new file mode 100644
index 0000000000..e9e4586f91
--- /dev/null
+++ b/dom/worklet/tests/worklet_audioWorklet_WASM_features.js
@@ -0,0 +1,44 @@
+class WasmProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor(...args) {
+    super(...args);
+    this.port.postMessage(testModules());
+  }
+
+  process(inputs, outputs, parameters) {
+    // Do nothing, output silence
+    return true;
+  }
+}
+
+function testModule(binary) {
+  try {
+    let wasmModule = new WebAssembly.Module(binary);
+  } catch (error) {
+    if (error instanceof WebAssembly.CompileError) {
+      return error.message;
+    }
+    return "unknown error";
+  }
+  return true;
+}
+
+// TODO: test more features
+function testModules() {
+  /*
+    js -e '
+      t = wasmTextToBinary(`
+        (module
+          (tag)
+        )
+      `);
+      print(t)
+    '
+  */
+  // eslint-disable-next-line
+  const exceptionHandlingCode = new Uint8Array([
+    0, 97, 115, 109, 1, 0, 0, 0, 1, 4, 1, 96, 0, 0, 13, 3, 1, 0, 0,
+  ]);
+  return testModule(exceptionHandlingCode);
+}
+
+registerProcessor("wasm", WasmProcessWorkletProcessor);
diff --git a/dom/worklet/tests/worklet_audioWorklet_options.js b/dom/worklet/tests/worklet_audioWorklet_options.js
new file mode 100644
index 0000000000..eb7a704234
--- /dev/null
+++ b/dom/worklet/tests/worklet_audioWorklet_options.js
@@ -0,0 +1,12 @@
+class OptionsProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor(...args) {
+    super(...args);
+    this.port.postMessage(args[0].processorOptions);
+  }
+
+  process(inputs, outputs, parameters) {
+    return true;
+  }
+}
+
+registerProcessor("options", OptionsProcessWorkletProcessor);
diff --git a/dom/worklet/tests/worklet_console.js b/dom/worklet/tests/worklet_console.js
new file mode 100644
index 0000000000..557beb1af2
--- /dev/null
+++ b/dom/worklet/tests/worklet_console.js
@@ -0,0 +1 @@
+console.log("Hello world from a worklet");
diff --git a/dom/worklet/tests/worklet_dump.js b/dom/worklet/tests/worklet_dump.js
new file mode 100644
index 0000000000..439d13f700
--- /dev/null
+++ b/dom/worklet/tests/worklet_dump.js
@@ -0,0 +1 @@
+dump("Hello world from a worklet");
diff --git a/dom/worklet/tests/worklet_exception.js b/dom/worklet/tests/worklet_exception.js
new file mode 100644
index 0000000000..f3b473756e
--- /dev/null
+++ b/dom/worklet/tests/worklet_exception.js
@@ -0,0 +1 @@
+foobar();
diff --git a/dom/worklet/tests/worklet_paintWorklet.js b/dom/worklet/tests/worklet_paintWorklet.js
new file mode 100644
index 0000000000..7cf5256e51
--- /dev/null
+++ b/dom/worklet/tests/worklet_paintWorklet.js
@@ -0,0 +1,5 @@
+// This should work for real... at some point.
+registerPaint("sure!", () => {});
+console.log(
+  globalThis instanceof PaintWorkletGlobalScope ? "So far so good" : "error"
+);
diff --git a/dom/worklet/tests/worklet_promise.js b/dom/worklet/tests/worklet_promise.js
new file mode 100644
index 0000000000..8c593fd001
--- /dev/null
+++ b/dom/worklet/tests/worklet_promise.js
@@ -0,0 +1,22 @@
+class WasmProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor(...args) {
+    super(...args);
+    this.port.onmessage = e => {
+      WebAssembly.compile(e.data).then(
+        m => {
+          this.port.postMessage(m);
+        },
+        () => {
+          this.port.postMessage("error");
+        }
+      );
+    };
+  }
+
+  process(inputs, outputs, parameters) {
+    // Do nothing, output silence
+    return true;
+  }
+}
+
+registerProcessor("promise", WasmProcessWorkletProcessor);
diff --git a/dom/worklet/tests/worklet_test_audioWorkletGlobalScopeRegisterProcessor.js b/dom/worklet/tests/worklet_test_audioWorkletGlobalScopeRegisterProcessor.js
new file mode 100644
index 0000000000..cddb9524ec
--- /dev/null
+++ b/dom/worklet/tests/worklet_test_audioWorkletGlobalScopeRegisterProcessor.js
@@ -0,0 +1,384 @@
+// Define several classes.
+class EmptyWorkletProcessor extends AudioWorkletProcessor {}
+
+class NoProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+}
+
+class BadDescriptorsWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return "A string";
+  }
+}
+
+class GoodDescriptorsWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "myParam",
+        defaultValue: 0.707,
+      },
+    ];
+  }
+}
+
+class DummyProcessWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+}
+
+class DescriptorsNoNameWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        defaultValue: 0.707,
+      },
+    ];
+  }
+}
+
+class DescriptorsDefaultValueNotNumberWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        defaultValue: "test",
+      },
+    ];
+  }
+}
+
+class DescriptorsMinValueNotNumberWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        minValue: "test",
+      },
+    ];
+  }
+}
+
+class DescriptorsMaxValueNotNumberWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        maxValue: "test",
+      },
+    ];
+  }
+}
+
+class DescriptorsDuplicatedNameWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+      },
+      {
+        name: "test",
+      },
+    ];
+  }
+}
+
+class DescriptorsNotDictWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [42];
+  }
+}
+
+class DescriptorsOutOfRangeMinWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        defaultValue: 0,
+        minValue: 1,
+        maxValue: 2,
+      },
+    ];
+  }
+}
+
+class DescriptorsOutOfRangeMaxWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        defaultValue: 3,
+        minValue: 1,
+        maxValue: 2,
+      },
+    ];
+  }
+}
+
+class DescriptorsBadRangeMaxWorkletProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process() {
+    // Do nothing, output silence
+  }
+
+  static get parameterDescriptors() {
+    return [
+      {
+        name: "test",
+        defaultValue: 1.5,
+        minValue: 2,
+        maxValue: 1,
+      },
+    ];
+  }
+}
+
+// Test not a constructor
+// "TypeError: Argument 2 of AudioWorkletGlobalScope.registerProcessor is not a constructor."
+try {
+  registerProcessor("sure!", () => {});
+} catch (e) {
+  console.log(e);
+}
+
+// Test empty name
+// "NotSupportedError: Argument 1 of AudioWorkletGlobalScope.registerProcessor should not be an empty string."
+try {
+  registerProcessor("", EmptyWorkletProcessor);
+} catch (e) {
+  console.log(e);
+}
+
+// Test not an object
+// "TypeError: Argument 2 of AudioWorkletGlobalScope.registerProcessor is not an object."
+try {
+  registerProcessor("my-worklet-processor", "");
+} catch (e) {
+  console.log(e);
+}
+
+// Test Empty class definition
+registerProcessor("empty-worklet-processor", EmptyWorkletProcessor);
+
+// Test class with constructor but not process function
+registerProcessor("no-worklet-processor", NoProcessWorkletProcessor);
+
+// Test class with parameterDescriptors being iterable, but the elements are not
+// dictionaries.
+// "TypeError: AudioWorkletGlobalScope.registerProcessor: Element 0 in parameterDescriptors can't be converted to a dictionary.",
+try {
+  registerProcessor(
+    "bad-descriptors-worklet-processor",
+    BadDescriptorsWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// Test class with good parameterDescriptors
+// No error expected here
+registerProcessor(
+  "good-descriptors-worklet-processor",
+  GoodDescriptorsWorkletProcessor
+);
+
+// Test class with constructor and process function
+// No error expected here
+registerProcessor("dummy-worklet-processor", DummyProcessWorkletProcessor);
+
+// Test class adding class with the same name twice
+// "NotSupportedError: Operation is not supported: Argument 1 of AudioWorkletGlobalScope.registerProcessor is invalid: a class with the same name is already registered."
+try {
+  registerProcessor("dummy-worklet-processor", DummyProcessWorkletProcessor);
+} catch (e) {
+  console.log(e);
+}
+
+// "name" is a mandatory field in descriptors
+// "TypeError: Missing required 'name' member of AudioParamDescriptor."
+try {
+  registerProcessor(
+    "descriptors-no-name-worklet-processor",
+    DescriptorsNoNameWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// "defaultValue" should be a number
+// "TypeError: 'defaultValue' member of AudioParamDescriptor is not a finite floating-point value."
+try {
+  registerProcessor(
+    "descriptors-default-value-not-number-worklet-processor",
+    DescriptorsDefaultValueNotNumberWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// "min" should be a number
+// "TypeError: 'minValue' member of AudioParamDescriptor is not a finite floating-point value."
+try {
+  registerProcessor(
+    "descriptors-min-value-not-number-worklet-processor",
+    DescriptorsMinValueNotNumberWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// "max" should be a number
+// "TypeError: 'maxValue' member of AudioParamDescriptor is not a finite floating-point value."
+try {
+  registerProcessor(
+    "descriptors-max-value-not-number-worklet-processor",
+    DescriptorsMaxValueNotNumberWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// Duplicated values are not allowed for "name"
+// "NotSupportedError: Duplicated name \"test\" in parameterDescriptors"
+try {
+  registerProcessor(
+    "descriptors-duplicated-name-worklet-processor",
+    DescriptorsDuplicatedNameWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// Descriptors' elements should be dictionnary
+// "TypeError: Element 0 in parameterDescriptors can't be converted to a dictionary.",
+try {
+  registerProcessor(
+    "descriptors-not-dict-worklet-processor",
+    DescriptorsNotDictWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// defaultValue value should be in range [minValue, maxValue]. defaultValue < minValue is not allowed
+// "NotSupportedError: In parameterDescriptors, test defaultValue is out of the range defined by minValue and maxValue.",
+try {
+  registerProcessor(
+    "descriptors-out-of-range-min-worklet-processor",
+    DescriptorsOutOfRangeMinWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// defaultValue value should be in range [minValue, maxValue]. defaultValue > maxValue is not allowed
+// "NotSupportedError: In parameterDescriptors, test defaultValue is out of the range defined by minValue and maxValue.",
+try {
+  registerProcessor(
+    "descriptors-out-of-range-max-worklet-processor",
+    DescriptorsOutOfRangeMaxWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}
+
+// We should have minValue < maxValue to define a valid range
+// "NotSupportedError: In parameterDescriptors, test minValue should be smaller than maxValue.",
+try {
+  registerProcessor(
+    "descriptors-bad-range-max-worklet-processor",
+    DescriptorsBadRangeMaxWorkletProcessor
+  );
+} catch (e) {
+  console.log(e);
+}