Adding upstream version 115.8.0esr.upstream/115.8.0esr

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

17 files changed, 698 insertions, 0 deletions

diff --git a/remote/shared/messagehandler/test/browser/resources/modules/ModuleRegistry.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/ModuleRegistry.sys.mjs
new file mode 100644
index 0000000000..7d93f45b33
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/ModuleRegistry.sys.mjs
@@ -0,0 +1,40 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+export const modules = {
+  root: {},
+  "windowglobal-in-root": {},
+  windowglobal: {},
+};
+
+const BASE_FOLDER =
+  "chrome://mochitests/content/browser/remote/shared/messagehandler/test/browser/resources/modules";
+
+// eslint-disable-next-line mozilla/lazy-getter-object-name
+ChromeUtils.defineESModuleGetters(modules.root, {
+  command: `${BASE_FOLDER}/root/command.sys.mjs`,
+  event: `${BASE_FOLDER}/root/event.sys.mjs`,
+  invalid: `${BASE_FOLDER}/root/invalid.sys.mjs`,
+  rootOnly: `${BASE_FOLDER}/root/rootOnly.sys.mjs`,
+  windowglobaltoroot: `${BASE_FOLDER}/root/windowglobaltoroot.sys.mjs`,
+});
+
+// eslint-disable-next-line mozilla/lazy-getter-object-name
+ChromeUtils.defineESModuleGetters(modules["windowglobal-in-root"], {
+  command: `${BASE_FOLDER}/windowglobal-in-root/command.sys.mjs`,
+  event: `${BASE_FOLDER}/windowglobal-in-root/event.sys.mjs`,
+});
+
+// eslint-disable-next-line mozilla/lazy-getter-object-name
+ChromeUtils.defineESModuleGetters(modules.windowglobal, {
+  command: `${BASE_FOLDER}/windowglobal/command.sys.mjs`,
+  commandwindowglobalonly: `${BASE_FOLDER}/windowglobal/commandwindowglobalonly.sys.mjs`,
+  event: `${BASE_FOLDER}/windowglobal/event.sys.mjs`,
+  eventemitter: `${BASE_FOLDER}/windowglobal/eventemitter.sys.mjs`,
+  eventnointercept: `${BASE_FOLDER}/windowglobal/eventnointercept.sys.mjs`,
+  eventonprefchange: `${BASE_FOLDER}/windowglobal/eventonprefchange.sys.mjs`,
+  retry: `${BASE_FOLDER}/windowglobal/retry.sys.mjs`,
+  sessiondataupdate: `${BASE_FOLDER}/windowglobal/sessiondataupdate.sys.mjs`,
+  windowglobaltoroot: `${BASE_FOLDER}/windowglobal/windowglobaltoroot.sys.mjs`,
+});
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/root/command.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/root/command.sys.mjs
new file mode 100644
index 0000000000..29e4a75828
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/root/command.sys.mjs
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class CommandModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testRootModule() {
+    return "root-value";
+  }
+
+  testMissingIntermediaryMethod(params, destination) {
+    // Spawn a new internal command, but with a commandName which doesn't match
+    // any method.
+    return this.messageHandler.handleCommand({
+      moduleName: "command",
+      commandName: "missingMethod",
+      destination,
+    });
+  }
+}
+
+export const command = CommandModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/root/event.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/root/event.sys.mjs
new file mode 100644
index 0000000000..e49437e80d
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/root/event.sys.mjs
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class EventModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testEmitRootEvent() {
+    this.emitEvent("event-from-root", {
+      text: "event from root",
+    });
+  }
+}
+
+export const event = EventModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/root/invalid.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/root/invalid.sys.mjs
new file mode 100644
index 0000000000..3b74769d06
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/root/invalid.sys.mjs
@@ -0,0 +1,4 @@
+// This module is meant to check error reporting when importing a module fails
+// due to an actual issue (syntax error etc...).
+
+SyntaxError(;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/root/rootOnly.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/root/rootOnly.sys.mjs
new file mode 100644
index 0000000000..0931a7ee8e
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/root/rootOnly.sys.mjs
@@ -0,0 +1,70 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { ContextDescriptorType } from "chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs";
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class RootOnlyModule extends Module {
+  #sessionDataReceived;
+  #subscribedEvents;
+
+  constructor(messageHandler) {
+    super(messageHandler);
+
+    this.#sessionDataReceived = [];
+    this.#subscribedEvents = new Set();
+  }
+
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  getSessionDataReceived() {
+    return this.#sessionDataReceived;
+  }
+
+  testCommand(params = {}) {
+    return params;
+  }
+
+  _applySessionData(params) {
+    const added = [];
+    const removed = [];
+
+    const filteredSessionData = params.sessionData.filter(item =>
+      this.messageHandler.matchesContext(item.contextDescriptor)
+    );
+    for (const event of this.#subscribedEvents.values()) {
+      const hasSessionItem = filteredSessionData.some(
+        item => item.value === event
+      );
+      // If there are no session items for this context, we should unsubscribe from the event.
+      if (!hasSessionItem) {
+        this.#subscribedEvents.delete(event);
+        removed.push(event);
+      }
+    }
+
+    // Subscribe to all events, which have an item in SessionData
+    for (const { value } of filteredSessionData) {
+      if (!this.#subscribedEvents.has(value)) {
+        this.#subscribedEvents.add(value);
+        added.push(value);
+      }
+    }
+
+    this.#sessionDataReceived.push({
+      category: params.category,
+      added,
+      removed,
+      contextDescriptor: {
+        type: ContextDescriptorType.All,
+      },
+    });
+  }
+}
+
+export const rootOnly = RootOnlyModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/root/windowglobaltoroot.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/root/windowglobaltoroot.sys.mjs
new file mode 100644
index 0000000000..0975c4abd5
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/root/windowglobaltoroot.sys.mjs
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class WindowGlobalToRootModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  getValueFromRoot() {
+    this.#assertParentProcess();
+    return "root-value-called-from-windowglobal";
+  }
+
+  #assertParentProcess() {
+    const isParent =
+      Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_DEFAULT;
+
+    if (!isParent) {
+      throw new Error("Can only run in the parent process");
+    }
+  }
+}
+
+export const windowglobaltoroot = WindowGlobalToRootModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/command.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/command.sys.mjs
new file mode 100644
index 0000000000..f9a2e5d4eb
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/command.sys.mjs
@@ -0,0 +1,28 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class CommandModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testInterceptModule() {
+    return "intercepted-value";
+  }
+
+  async testInterceptAndForwardModule(params, destination) {
+    const windowGlobalValue = await this.messageHandler.handleCommand({
+      moduleName: "command",
+      commandName: "testForwardToWindowGlobal",
+      destination,
+    });
+    return "intercepted-and-forward+" + windowGlobalValue;
+  }
+}
+
+export const command = CommandModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/event.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/event.sys.mjs
new file mode 100644
index 0000000000..2969e0a3e8
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal-in-root/event.sys.mjs
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class EventModule extends Module {
+  destroy() {}
+
+  interceptEvent(name, payload) {
+    if (name === "event.testEventWithInterception") {
+      return {
+        ...payload,
+        additionalInformation: "information added through interception",
+      };
+    }
+    return payload;
+  }
+
+  /**
+   * Commands
+   */
+
+  testEmitWindowGlobalInRootEvent(params, destination) {
+    this.emitEvent("event-from-window-global-in-root", {
+      text: `windowglobal-in-root event for ${destination.id}`,
+    });
+  }
+}
+
+export const event = EventModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/command.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/command.sys.mjs
new file mode 100644
index 0000000000..99ee76a4b8
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/command.sys.mjs
@@ -0,0 +1,85 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class CommandModule extends Module {
+  constructor(messageHandler) {
+    super(messageHandler);
+    this._subscribedEvents = new Set();
+
+    this._createdByMessageHandlerConstructor =
+      this._isCreatedByMessageHandlerConstructor();
+  }
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  _applySessionData(params) {
+    if (params.category === "testCategory") {
+      const filteredSessionData = params.sessionData.filter(item =>
+        this.messageHandler.matchesContext(item.contextDescriptor)
+      );
+      for (const event of this._subscribedEvents.values()) {
+        const hasSessionItem = filteredSessionData.some(
+          item => item.value === event
+        );
+        // If there are no session items for this context, we should unsubscribe from the event.
+        if (!hasSessionItem) {
+          this._subscribedEvents.delete(event);
+        }
+      }
+
+      // Subscribe to all events, which have an item in SessionData
+      for (const { value } of filteredSessionData) {
+        if (!this._subscribedEvents.has(value)) {
+          this._subscribedEvents.add(value);
+        }
+      }
+    }
+
+    if (params.category === "browser_session_data_browser_element") {
+      this.emitEvent("received-session-data", {
+        contextId: this.messageHandler.contextId,
+      });
+    }
+  }
+
+  testWindowGlobalModule() {
+    return "windowglobal-value";
+  }
+
+  testSetValue(params) {
+    const { value } = params;
+
+    this._testValue = value;
+  }
+
+  testGetValue() {
+    return this._testValue;
+  }
+
+  testForwardToWindowGlobal() {
+    return "forward-to-windowglobal-value";
+  }
+
+  testIsCreatedByMessageHandlerConstructor() {
+    return this._createdByMessageHandlerConstructor;
+  }
+
+  _isCreatedByMessageHandlerConstructor() {
+    let caller = Components.stack.caller;
+    while (caller) {
+      if (caller.name === this.messageHandler.constructor.name) {
+        return true;
+      }
+      caller = caller.caller;
+    }
+    return false;
+  }
+}
+
+export const command = CommandModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/commandwindowglobalonly.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/commandwindowglobalonly.sys.mjs
new file mode 100644
index 0000000000..1e4e6c1574
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/commandwindowglobalonly.sys.mjs
@@ -0,0 +1,41 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class CommandWindowGlobalOnlyModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testOnlyInWindowGlobal() {
+    return "only-in-windowglobal";
+  }
+
+  testBroadcast() {
+    return `broadcast-${this.messageHandler.contextId}`;
+  }
+
+  testBroadcastWithParameter(params) {
+    return `broadcast-${this.messageHandler.contextId}-${params.value}`;
+  }
+
+  testError() {
+    throw new Error("error-from-module");
+  }
+
+  testMissingIntermediaryMethod(params, destination) {
+    // Spawn a new internal command, but with a commandName which doesn't match
+    // any method.
+    return this.messageHandler.handleCommand({
+      moduleName: "commandwindowglobalonly",
+      commandName: "missingMethod",
+      destination,
+    });
+  }
+}
+
+export const commandwindowglobalonly = CommandWindowGlobalOnlyModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/event.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/event.sys.mjs
new file mode 100644
index 0000000000..5bb50cb83d
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/event.sys.mjs
@@ -0,0 +1,26 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class EventModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testEmitEvent() {
+    // Emit a payload including the contextId to check which context emitted
+    // a specific event.
+    const text = `event from ${this.messageHandler.contextId}`;
+    this.emitEvent("event-from-window-global", { text });
+  }
+
+  testEmitEventWithInterception() {
+    this.emitEvent("event.testEventWithInterception", {});
+  }
+}
+
+export const event = EventModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventemitter.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventemitter.sys.mjs
new file mode 100644
index 0000000000..c86954c5e0
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventemitter.sys.mjs
@@ -0,0 +1,81 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class EventEmitterModule extends Module {
+  #isSubscribed;
+  #subscribedEvents;
+
+  constructor(messageHandler) {
+    super(messageHandler);
+    this.#isSubscribed = false;
+    this.#subscribedEvents = new Set();
+  }
+
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  emitTestEvent() {
+    if (this.#isSubscribed) {
+      const text = `event from ${this.messageHandler.contextId}`;
+      this.emitEvent("eventemitter.testEvent", { text });
+    }
+
+    // Emit another event consistently for monitoring during the test.
+    this.emitEvent("eventemitter.monitoringEvent", {});
+  }
+
+  isSubscribed() {
+    return this.#isSubscribed;
+  }
+
+  _applySessionData(params) {
+    const { category } = params;
+    if (category === "event") {
+      const filteredSessionData = params.sessionData.filter(item =>
+        this.messageHandler.matchesContext(item.contextDescriptor)
+      );
+      for (const event of this.#subscribedEvents.values()) {
+        const hasSessionItem = filteredSessionData.some(
+          item => item.value === event
+        );
+        // If there are no session items for this context, we should unsubscribe from the event.
+        if (!hasSessionItem) {
+          this.#unsubscribeEvent(event);
+        }
+      }
+
+      // Subscribe to all events, which have an item in SessionData
+      for (const { value } of filteredSessionData) {
+        this.#subscribeEvent(value);
+      }
+    }
+  }
+
+  #subscribeEvent(event) {
+    if (event === "eventemitter.testEvent") {
+      if (this.#isSubscribed) {
+        throw new Error("Already subscribed to eventemitter.testEvent");
+      }
+      this.#isSubscribed = true;
+      this.#subscribedEvents.add(event);
+    }
+  }
+
+  #unsubscribeEvent(event) {
+    if (event === "eventemitter.testEvent") {
+      if (!this.#isSubscribed) {
+        throw new Error("Not subscribed to eventemitter.testEvent");
+      }
+      this.#isSubscribed = false;
+      this.#subscribedEvents.delete(event);
+    }
+  }
+}
+
+export const eventemitter = EventEmitterModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventnointercept.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventnointercept.sys.mjs
new file mode 100644
index 0000000000..48bbfbf951
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventnointercept.sys.mjs
@@ -0,0 +1,16 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class EventNoInterceptModule extends Module {
+  destroy() {}
+
+  testEvent() {
+    const text = `event no interception`;
+    this.emitEvent("eventnointercept.testEvent", { text });
+  }
+}
+
+export const eventnointercept = EventNoInterceptModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventonprefchange.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventonprefchange.sys.mjs
new file mode 100644
index 0000000000..33cb25d10b
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/eventonprefchange.sys.mjs
@@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+const TEST_PREF = "remote.messagehandler.test.pref";
+
+class EventOnPrefChangeModule extends Module {
+  constructor(messageHandler) {
+    super(messageHandler);
+    Services.prefs.addObserver(TEST_PREF, this.#onPreferenceUpdated);
+  }
+
+  destroy() {
+    Services.prefs.removeObserver(TEST_PREF, this.#onPreferenceUpdated);
+  }
+
+  #onPreferenceUpdated = () => {
+    this.emitEvent("preference-changed");
+  };
+
+  /**
+   * Commands
+   */
+
+  ping() {
+    // We only use this command to force creating the module.
+    return 1;
+  }
+}
+
+export const eventonprefchange = EventOnPrefChangeModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/retry.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/retry.sys.mjs
new file mode 100644
index 0000000000..f7b2279018
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/retry.sys.mjs
@@ -0,0 +1,84 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+// Store counters in the JSM scope to persist them across reloads.
+let callsToBlockedOneTime = 0;
+let callsToBlockedTenTimes = 0;
+let callsToBlockedElevenTimes = 0;
+
+// This module provides various commands which all hang for various reasons.
+// The test is supposed to trigger the command and then destroy the
+// JSWindowActor pair by any mean (eg a navigation) in order to trigger an
+// AbortError and a retry.
+class RetryModule extends Module {
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  // Resolves only if called while on the example.net domain.
+  async blockedOnNetDomain(params) {
+    // Note: we do not store a call counter here, because this is used for a
+    // cross-group navigation test, and the JSM will be loaded in different
+    // processes.
+    const uri = this.messageHandler.window.document.baseURI;
+    if (!uri.includes("example.net")) {
+      await new Promise(r => {});
+    }
+
+    return { ...params };
+  }
+
+  // Resolves only if called more than once.
+  async blockedOneTime(params) {
+    callsToBlockedOneTime++;
+    if (callsToBlockedOneTime < 2) {
+      await new Promise(r => {});
+    }
+
+    // Return:
+    // - params sent to the command to check that retries have correct params
+    // - the call counter
+    return { ...params, callsToCommand: callsToBlockedOneTime };
+  }
+
+  // Resolves only if called more than ten times (which is exactly the maximum
+  // of retry attempts).
+  async blockedTenTimes(params) {
+    callsToBlockedTenTimes++;
+    if (callsToBlockedTenTimes < 11) {
+      await new Promise(r => {});
+    }
+
+    // Return:
+    // - params sent to the command to check that retries have correct params
+    // - the call counter
+    return { ...params, callsToCommand: callsToBlockedTenTimes };
+  }
+
+  // Resolves only if called more than eleven times (which is greater than the
+  // maximum of retry attempts).
+  async blockedElevenTimes(params) {
+    callsToBlockedElevenTimes++;
+    if (callsToBlockedElevenTimes < 12) {
+      await new Promise(r => {});
+    }
+
+    // Return:
+    // - params sent to the command to check that retries have correct params
+    // - the call counter
+    return { ...params, callsToCommand: callsToBlockedElevenTimes };
+  }
+
+  cleanup() {
+    callsToBlockedOneTime = 0;
+    callsToBlockedTenTimes = 0;
+    callsToBlockedElevenTimes = 0;
+  }
+}
+
+export const retry = RetryModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/sessiondataupdate.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/sessiondataupdate.sys.mjs
new file mode 100644
index 0000000000..5e9ce00b46
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/sessiondataupdate.sys.mjs
@@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+
+class SessionDataUpdateModule extends Module {
+  #sessionDataUpdates;
+
+  constructor(messageHandler) {
+    super(messageHandler);
+    this.#sessionDataUpdates = [];
+  }
+
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  _applySessionData(params) {
+    const filteredSessionData = params.sessionData.filter(item =>
+      this.messageHandler.matchesContext(item.contextDescriptor)
+    );
+    this.#sessionDataUpdates.push(filteredSessionData);
+  }
+
+  getSessionDataUpdates() {
+    return this.#sessionDataUpdates;
+  }
+}
+
+export const sessiondataupdate = SessionDataUpdateModule;
diff --git a/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/windowglobaltoroot.sys.mjs b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/windowglobaltoroot.sys.mjs
new file mode 100644
index 0000000000..815a836d9c
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/resources/modules/windowglobal/windowglobaltoroot.sys.mjs
@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
+import { RootMessageHandler } from "chrome://remote/content/shared/messagehandler/RootMessageHandler.sys.mjs";
+
+class WindowGlobalToRootModule extends Module {
+  constructor(messageHandler) {
+    super(messageHandler);
+    this.#assertContentProcess();
+  }
+
+  destroy() {}
+
+  /**
+   * Commands
+   */
+
+  testHandleCommandToRoot(params, destination) {
+    return this.messageHandler.handleCommand({
+      moduleName: "windowglobaltoroot",
+      commandName: "getValueFromRoot",
+      destination: {
+        type: RootMessageHandler.type,
+      },
+    });
+  }
+
+  testSendRootCommand(params, destination) {
+    return this.messageHandler.sendRootCommand({
+      moduleName: "windowglobaltoroot",
+      commandName: "getValueFromRoot",
+    });
+  }
+
+  #assertContentProcess() {
+    const isContent =
+      Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT;
+
+    if (!isContent) {
+      throw new Error("Can only run in a content process");
+    }
+  }
+}
+
+export const windowglobaltoroot = WindowGlobalToRootModule;