1 files changed, 74 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_reload.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_reload.js
new file mode 100644
index 0000000000..3eba6bcd7e
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_reload.js
@@ -0,0 +1,74 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test can run for a long time on debug platforms.
+requestLongerTimeout(5);
+
+/* import-globals-from helper-collapsibilities.js */
+Services.scriptloader.loadSubScript(
+  CHROME_URL_ROOT + "helper-collapsibilities.js",
+  this
+);
+
+const TOOLS = [
+  "inspector",
+  "webconsole",
+  "jsdebugger",
+  "styleeditor",
+  "memory",
+  "netmonitor",
+  "storage",
+  "accessibility",
+];
+
+/**
+ * Test whether about:devtools-toolbox display correctly after reloading.
+ */
+add_task(async function () {
+  info("Force all debug target panes to be expanded");
+  prepareCollapsibilitiesTest();
+
+  for (const toolId of TOOLS) {
+    await testReloadAboutDevToolsToolbox(toolId);
+  }
+});
+
+async function testReloadAboutDevToolsToolbox(toolId) {
+  const { document, tab, window } = await openAboutDebugging();
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+  // We set the options panel to be the default one because slower panels might lead to
+  // race conditions which create leaks in debug mode.
+  await pushPref("devtools.toolbox.selectedTool", "options");
+  const { devtoolsBrowser, devtoolsTab, devtoolsWindow } =
+    await openAboutDevtoolsToolbox(document, tab, window);
+
+  info(`Select tool: ${toolId}`);
+  const toolbox = getToolbox(devtoolsWindow);
+  await toolbox.selectTool(toolId);
+
+  info("Wait for requests to settle before reloading");
+  await toolbox.commands.client.waitForRequestsToSettle();
+
+  info("Reload about:devtools-toolbox page");
+  devtoolsBrowser.reload();
+  await gDevTools.once("toolbox-ready");
+  ok(true, "Toolbox is re-created again");
+
+  // Check that about:devtools-toolbox is still selected tab. See Bug 1570692.
+  is(
+    devtoolsBrowser,
+    gBrowser.selectedBrowser,
+    "about:devtools-toolbox is still selected"
+  );
+
+  info("Check whether about:devtools-toolbox page displays correctly");
+  ok(
+    devtoolsBrowser.contentDocument.querySelector(".debug-target-info"),
+    "about:devtools-toolbox page displays correctly"
+  );
+
+  await closeAboutDevtoolsToolbox(document, devtoolsTab, window);
+  await removeTab(tab);
+}