Bug 1819120 - [bidi] Migrate test_RemoteValue.js to a browser mochitest r=webdriver-reviewers,whimboo

Depends on D170809
Migrate the test to a browser mochitest and start testing deserialization in WindowRealm

Differential Revision: https://phabricator.services.mozilla.com/D171107

remote/webdriver-bidi/moz.build

@@ -7,4 +7,8 @@ JAR_MANIFESTS += ["jar.mn"]
 with Files("**"):
     BUG_COMPONENT = ("Remote Protocol", "WebDriver BiDi")
 
+BROWSER_CHROME_MANIFESTS += [
+    "test/browser/browser.ini",
+]
+
 XPCSHELL_TESTS_MANIFESTS += ["test/xpcshell/xpcshell.ini"]

remote/webdriver-bidi/test/browser/browser.ini

@@ -0,0 +1,5 @@
+[DEFAULT]
+tags = remote
+subsuite = remote
+
+[browser_RemoteValue.js]

remote/webdriver-bidi/test/browser/browser_RemoteValue.js

@@ -418,6 +418,20 @@ add_task(function test_deserializeLocalValues() {
   }
 });
 
+add_task(async function test_deserializeLocalValuesInWindowRealm() {
+  for (const type of REMOTE_SIMPLE_VALUES.concat(REMOTE_COMPLEX_VALUES)) {
+    const { value: expectedValue, serialized, deserializable } = type;
+
+    // Skip non deserializable cases
+    if (!deserializable) {
+      continue;
+    }
+
+    const value = await deserializeInWindowRealm(serialized);
+    assertLocalValue(serialized.type, value, expectedValue);
+  }
+});
+
 add_task(function test_deserializeLocalValuesByHandle() {
   // Create two realms, realm1 will be used to serialize values, while realm2
   // will be used as a reference empty realm without any object reference.
@@ -986,3 +1000,21 @@ function assertInternalIds(serializationInternalMap, amount) {
     "Got expected amount of internalIds in serializationInternalMap"
   );
 }
+
+function deserializeInWindowRealm(serialized) {
+  return SpecialPowers.spawn(
+    gBrowser.selectedBrowser,
+    [serialized],
+    async _serialized => {
+      const { WindowRealm } = ChromeUtils.importESModule(
+        "chrome://remote/content/webdriver-bidi/Realm.sys.mjs"
+      );
+      const { deserialize } = ChromeUtils.importESModule(
+        "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs"
+      );
+      const realm = new WindowRealm(content);
+      info(`Checking '${_serialized.type}'`);
+      return deserialize(realm, _serialized);
+    }
+  );
+}

remote/webdriver-bidi/test/xpcshell/xpcshell.ini

@@ -3,5 +3,4 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 [test_Realm.js]
-[test_RemoteValue.js]
 [test_WebDriverBiDiConnection.js]