1 files changed, 62 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg_WorkerActor.attach.js b/devtools/client/debugger/test/mochitest/browser_dbg_WorkerActor.attach.js
new file mode 100644
index 000000000..68d7f1b26
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg_WorkerActor.attach.js
@@ -0,0 +1,62 @@
+var MAX_TOTAL_VIEWERS = "browser.sessionhistory.max_total_viewers";
+
+var TAB1_URL = EXAMPLE_URL + "doc_WorkerActor.attach-tab1.html";
+var TAB2_URL = EXAMPLE_URL + "doc_WorkerActor.attach-tab2.html";
+var WORKER1_URL = "code_WorkerActor.attach-worker1.js";
+var WORKER2_URL = "code_WorkerActor.attach-worker2.js";
+
+function test() {
+  Task.spawn(function* () {
+    let oldMaxTotalViewers = SpecialPowers.getIntPref(MAX_TOTAL_VIEWERS);
+    SpecialPowers.setIntPref(MAX_TOTAL_VIEWERS, 10);
+
+    DebuggerServer.init();
+    DebuggerServer.addBrowserActors();
+
+    let client = new DebuggerClient(DebuggerServer.connectPipe());
+    yield connect(client);
+
+    let tab = yield addTab(TAB1_URL);
+    let { tabs } = yield listTabs(client);
+    let [, tabClient] = yield attachTab(client, findTab(tabs, TAB1_URL));
+    yield listWorkers(tabClient);
+
+    // If a page still has pending network requests, it will not be moved into
+    // the bfcache. Consequently, we cannot use waitForWorkerListChanged here,
+    // because the worker is not guaranteed to have finished loading when it is
+    // registered. Instead, we have to wait for the promise returned by
+    // createWorker in the tab to be resolved.
+    yield createWorkerInTab(tab, WORKER1_URL);
+    let { workers } = yield listWorkers(tabClient);
+    let [, workerClient1] = yield attachWorker(tabClient,
+                                               findWorker(workers, WORKER1_URL));
+    is(workerClient1.isClosed, false, "worker in tab 1 should not be closed");
+
+    executeSoon(() => {
+      tab.linkedBrowser.loadURI(TAB2_URL);
+    });
+    yield waitForWorkerClose(workerClient1);
+    is(workerClient1.isClosed, true, "worker in tab 1 should be closed");
+
+    yield createWorkerInTab(tab, WORKER2_URL);
+    ({ workers } = yield listWorkers(tabClient));
+    let [, workerClient2] = yield attachWorker(tabClient,
+                                               findWorker(workers, WORKER2_URL));
+    is(workerClient2.isClosed, false, "worker in tab 2 should not be closed");
+
+    executeSoon(() => {
+      tab.linkedBrowser.contentWindow.history.back();
+    });
+    yield waitForWorkerClose(workerClient2);
+    is(workerClient2.isClosed, true, "worker in tab 2 should be closed");
+
+    ({ workers } = yield listWorkers(tabClient));
+    [, workerClient1] = yield attachWorker(tabClient,
+                                           findWorker(workers, WORKER1_URL));
+    is(workerClient1.isClosed, false, "worker in tab 1 should not be closed");
+
+    yield close(client);
+    SpecialPowers.setIntPref(MAX_TOTAL_VIEWERS, oldMaxTotalViewers);
+    finish();
+  });
+}