1 files changed, 121 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_thisfirefox.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_thisfirefox.js
new file mode 100644
index 0000000000..3f673df758
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_thisfirefox.js
@@ -0,0 +1,121 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const EXPECTED_TARGET_PANES = [
+  "Tabs",
+  "Temporary Extensions",
+  "Extensions",
+  "Service Workers",
+  "Shared Workers",
+  "Other Workers",
+];
+
+/**
+ * Check that the This Firefox runtime page contains the expected categories if
+ * the preference to enable local tab debugging is true.
+ */
+add_task(async function testThisFirefoxWithLocalTab() {
+  const { document, tab, window } = await openAboutDebugging({
+    enableLocalTabs: true,
+  });
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  // Expect all target panes to be displayed including tabs.
+  await checkThisFirefoxTargetPanes(document, EXPECTED_TARGET_PANES);
+
+  await removeTab(tab);
+});
+
+/**
+ * Check that the This Firefox runtime page contains the expected categories if
+ * the preference to enable local tab debugging is false.
+ */
+add_task(async function testThisFirefoxWithoutLocalTab() {
+  const { document, tab, window } = await openAboutDebugging({
+    enableLocalTabs: false,
+  });
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  // Expect all target panes but tabs to be displayed.
+  const expectedTargetPanesWithoutTabs = EXPECTED_TARGET_PANES.filter(
+    p => p !== "Tabs"
+  );
+  await checkThisFirefoxTargetPanes(document, expectedTargetPanesWithoutTabs);
+
+  await removeTab(tab);
+});
+
+/**
+ * Check that the tab which is discarded keeps the state after open the aboutdebugging.
+ */
+add_task(async function testThisFirefoxKeepDiscardedTab() {
+  const targetTab = await addTab("https://example.com/");
+  const blankTab = await addTab("about:blank");
+  targetTab.ownerGlobal.gBrowser.discardBrowser(targetTab);
+
+  const { document, tab, window } = await openAboutDebugging({
+    enableLocalTabs: false,
+  });
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  ok(!targetTab.linkedPanel, "The target tab is still discarded");
+
+  await removeTab(blankTab);
+  await removeTab(targetTab);
+  await removeTab(tab);
+});
+
+/**
+ * Check that the Temporary Extensions is hidden if "xpinstall.enabled" is set to false.
+ */
+add_task(async function testThisFirefoxWithXpinstallDisabled() {
+  await pushPref("xpinstall.enabled", false);
+
+  const { document, tab, window } = await openAboutDebugging();
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  // Expect all target panes but temporary extensions to be displayed.
+  const expectedTargetPanesWithXpinstallDisabled = EXPECTED_TARGET_PANES.filter(
+    p => p !== "Temporary Extensions"
+  );
+  await checkThisFirefoxTargetPanes(
+    document,
+    expectedTargetPanesWithXpinstallDisabled
+  );
+
+  await removeTab(tab);
+});
+
+async function checkThisFirefoxTargetPanes(doc, expectedTargetPanes) {
+  const win = doc.ownerGlobal;
+  // Check that the selected sidebar item is "This Firefox"/"This Nightly"/...
+  const selectedSidebarItem = doc.querySelector(".qa-sidebar-item-selected");
+  ok(selectedSidebarItem, "An item is selected in the sidebar");
+
+  const thisFirefoxString = getThisFirefoxString(win);
+  is(
+    selectedSidebarItem.textContent,
+    thisFirefoxString,
+    "The selected sidebar item is " + thisFirefoxString
+  );
+
+  const paneTitlesEls = doc.querySelectorAll(".qa-debug-target-pane-title");
+  is(
+    paneTitlesEls.length,
+    expectedTargetPanes.length,
+    "This Firefox has the expected number of debug target categories"
+  );
+
+  const paneTitles = [...paneTitlesEls].map(el => el.textContent);
+
+  for (let i = 0; i < expectedTargetPanes.length; i++) {
+    const expectedPaneTitle = expectedTargetPanes[i];
+    const actualPaneTitle = paneTitles[i];
+    ok(
+      actualPaneTitle.startsWith(expectedPaneTitle),
+      `Expected debug target category found: ${expectedPaneTitle}`
+    );
+  }
+}