1 files changed, 129 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_getProcess.js b/devtools/server/tests/browser/browser_getProcess.js
new file mode 100644
index 0000000000..30c9fff589
--- /dev/null
+++ b/devtools/server/tests/browser/browser_getProcess.js
@@ -0,0 +1,129 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test `RootActor.getProcess` method
+ */
+
+"use strict";
+
+add_task(async () => {
+  let client, tab;
+
+  function connect() {
+    // Fake a first connection to the content process
+    const transport = DevToolsServer.connectPipe();
+    client = new DevToolsClient(transport);
+    return client.connect();
+  }
+
+  async function listProcess() {
+    const onNewProcess = new Promise(resolve => {
+      // Call listProcesses in order to start receiving new process notifications
+      client.mainRoot.on("processListChanged", function listener() {
+        client.off("processListChanged", listener);
+        ok(true, "Received processListChanged event");
+        resolve();
+      });
+    });
+    await client.mainRoot.listProcesses();
+    await createNewProcess();
+    return onNewProcess;
+  }
+
+  async function createNewProcess() {
+    tab = await BrowserTestUtils.openNewForegroundTab({
+      gBrowser,
+      url: "data:text/html,new-process",
+      forceNewProcess: true,
+    });
+  }
+
+  async function getProcess() {
+    // Note that we can't assert process count as the number of processes
+    // is affected by previous tests.
+    const processes = await client.mainRoot.listProcesses();
+    const { osPid } = tab.linkedBrowser.browsingContext.currentWindowGlobal;
+    const descriptor = processes.find(process => process.id == osPid);
+    ok(descriptor, "Got the new process descriptor");
+
+    // Connect to the first content process available
+    const content = processes.filter(p => !p.isParentProcessDescriptor)[0];
+
+    const processDescriptor = await client.mainRoot.getProcess(content.id);
+    const front = await processDescriptor.getTarget();
+    const targetForm = front.targetForm;
+    ok(targetForm.consoleActor, "Got the console actor");
+    ok(targetForm.threadActor, "Got the thread actor");
+
+    // Process target are no longer really used/supported beyond listing their workers
+    // from RootFront.
+    const { workers } = await front.listWorkers();
+    is(workers.length, 0, "listWorkers worked and reported no workers");
+
+    return [front, content.id];
+  }
+
+  // Assert that calling client.getProcess against the same process id is
+  // returning the same actor.
+  async function getProcessAgain(firstTargetFront, id) {
+    const processDescriptor = await client.mainRoot.getProcess(id);
+    const front = await processDescriptor.getTarget();
+    is(
+      front,
+      firstTargetFront,
+      "Second call to getProcess with the same id returns the same form"
+    );
+  }
+
+  function processScript() {
+    /* eslint-env mozilla/process-script */
+    const listener = function () {
+      Services.obs.removeObserver(listener, "devtools:loader:destroy");
+      sendAsyncMessage("test:getProcess-destroy", null);
+    };
+    Services.obs.addObserver(listener, "devtools:loader:destroy");
+  }
+
+  async function closeClient() {
+    const onLoaderDestroyed = new Promise(done => {
+      const processListener = function () {
+        Services.ppmm.removeMessageListener(
+          "test:getProcess-destroy",
+          processListener
+        );
+        done();
+      };
+      Services.ppmm.addMessageListener(
+        "test:getProcess-destroy",
+        processListener
+      );
+    });
+    const script = `data:,(${encodeURI(processScript)})()`;
+    Services.ppmm.loadProcessScript(script, true);
+    await client.close();
+
+    await onLoaderDestroyed;
+    Services.ppmm.removeDelayedProcessScript(script);
+    info("Loader destroyed in the content process");
+  }
+
+  // Instantiate a minimal server
+  DevToolsServer.init();
+  DevToolsServer.allowChromeProcess = true;
+  if (!DevToolsServer.createRootActor) {
+    DevToolsServer.registerAllActors();
+  }
+
+  await connect();
+  await listProcess();
+
+  const [front, contentId] = await getProcess();
+
+  await getProcessAgain(front, contentId);
+
+  await closeClient();
+
+  BrowserTestUtils.removeTab(tab);
+  DevToolsServer.destroy();
+});