1 files changed, 108 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_tab_zombietab.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_tab_zombietab.js
new file mode 100644
index 0000000000..1243d3374d
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_tab_zombietab.js
@@ -0,0 +1,108 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+let gUniqueCounter = 0;
+
+const triggeringPrincipal_base64 = E10SUtils.SERIALIZED_SYSTEMPRINCIPAL;
+
+const BROWSER_STATE_TABS = [
+  "about:debugging",
+  "data:text/html,<title>TEST_TAB_1</title>",
+  "data:text/html,<title>TEST_TAB_2</title>",
+  "data:text/html,<title>TEST_TAB_3</title>",
+];
+const BROWSER_STATE = {
+  windows: [
+    {
+      tabs: BROWSER_STATE_TABS.map(url => {
+        return {
+          entries: [{ url, triggeringPrincipal_base64 }],
+          extData: { uniq: Date.now() + "-" + ++gUniqueCounter },
+        };
+      }),
+      selected: 1,
+    },
+  ],
+};
+
+// Check that the inspect action is disabled for lazy/zombie tabs, such as the
+// ones created after a session restore.
+add_task(async function () {
+  // This setup is normally handed by the openAboutDebugging helper, but here we
+  // open about:debugging via session restore.
+  silenceWorkerUpdates();
+  await pushPref("devtools.aboutdebugging.local-tab-debugging", true);
+
+  info("Restore 4 tabs including a selected about:debugging tab");
+  const onBrowserSessionRestored = Promise.all([
+    TestUtils.topicObserved("sessionstore-browser-state-restored"),
+    BrowserTestUtils.waitForEvent(gBrowser.tabContainer, "SSTabRestored"),
+  ]);
+  SessionStore.setBrowserState(JSON.stringify(BROWSER_STATE));
+  await onBrowserSessionRestored;
+
+  const tab = gBrowser.selectedTab;
+  const browser = tab.linkedBrowser;
+  const doc = browser.contentDocument;
+  const win = browser.contentWindow;
+  const store = win.AboutDebugging.store;
+
+  info("Wait until Connect page is displayed");
+  await waitUntil(() => doc.querySelector(".qa-connect-page"));
+
+  await selectThisFirefoxPage(doc, store);
+
+  // Check that all inspect butttons are disabled.
+  checkInspectButton("TEST_TAB_1", doc, { expectDisabled: true });
+  checkInspectButton("TEST_TAB_2", doc, { expectDisabled: true });
+  checkInspectButton("TEST_TAB_3", doc, { expectDisabled: true });
+
+  info("Select the TEST_TAB_2 tab top restore it completely");
+  const onTabRestored = BrowserTestUtils.waitForEvent(
+    gBrowser.tabContainer,
+    "SSTabRestored"
+  );
+  gBrowser.selectedTab = gBrowser.tabs[2];
+  await onTabRestored;
+
+  const onTabsSuccess = waitForDispatch(store, "REQUEST_TABS_SUCCESS");
+
+  info("Select the about:debugging tab again");
+  gBrowser.selectedTab = tab;
+
+  info("Wait until the tabs update is finished");
+  await onTabsSuccess;
+
+  info("Wait until the inspect button for TEST_TAB_2 is enabled");
+  await waitUntil(() => {
+    const target = findDebugTargetByText("TEST_TAB_2", doc);
+    if (!target) {
+      // TEST_TAB_2 target might be missing while the tab target list updates.
+      return false;
+    }
+
+    const button = target.querySelector(".qa-debug-target-inspect-button");
+    return !button.disabled;
+  });
+
+  // Check that all inspect butttons are disabled, except for #2.
+  checkInspectButton("TEST_TAB_1", doc, { expectDisabled: true });
+  checkInspectButton("TEST_TAB_2", doc, { expectDisabled: false });
+  checkInspectButton("TEST_TAB_3", doc, { expectDisabled: true });
+});
+
+function checkInspectButton(targetText, doc, { expectDisabled }) {
+  const inspectButton = getInspectButton(targetText, doc);
+  if (expectDisabled) {
+    ok(inspectButton.disabled, `Inspect button is disabled for ${targetText}`);
+  } else {
+    ok(!inspectButton.disabled, `Inspect button is enabled for ${targetText}`);
+  }
+}
+
+function getInspectButton(targetText, doc) {
+  const targetElement = findDebugTargetByText(targetText, doc);
+  return targetElement.querySelector(".qa-debug-target-inspect-button");
+}