1 files changed, 77 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_persistent_logs.js b/devtools/client/netmonitor/test/browser_net_persistent_logs.js
new file mode 100644
index 0000000000..ed44f8dfd1
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_persistent_logs.js
@@ -0,0 +1,77 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests if the network monitor leaks on initialization and sudden destruction.
+ * You can also use this initialization format as a template for other tests.
+ */
+
+add_task(async function () {
+  const { monitor } = await initNetMonitor(SINGLE_GET_URL, {
+    requestCount: 1,
+  });
+  info("Starting test... ");
+
+  const { document, store, windowRequire } = monitor.panelWin;
+  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
+
+  store.dispatch(Actions.batchEnable(false));
+
+  Services.prefs.setBoolPref("devtools.netmonitor.persistlog", false);
+
+  await reloadAndWait();
+
+  // Using waitUntil in the test is necessary to ensure all requests are added correctly.
+  // Because reloadAndWait call may catch early uncaught requests from initNetMonitor, so
+  // the actual number of requests after reloadAndWait could be wrong since all requests
+  // haven't finished.
+  await waitUntil(
+    () => document.querySelectorAll(".request-list-item").length === 2
+  );
+  is(
+    document.querySelectorAll(".request-list-item").length,
+    2,
+    "The request list should have two items at this point."
+  );
+
+  await reloadAndWait();
+
+  await waitUntil(
+    () => document.querySelectorAll(".request-list-item").length === 2
+  );
+  // Since the reload clears the log, we still expect two requests in the log
+  is(
+    document.querySelectorAll(".request-list-item").length,
+    2,
+    "The request list should still have two items at this point."
+  );
+
+  // Now we toggle the persistence logs on
+  Services.prefs.setBoolPref("devtools.netmonitor.persistlog", true);
+
+  await reloadAndWait();
+
+  await waitUntil(
+    () => document.querySelectorAll(".request-list-item").length === 4
+  );
+  // Since we togged the persistence logs, we expect four items after the reload
+  is(
+    document.querySelectorAll(".request-list-item").length,
+    4,
+    "The request list should now have four items at this point."
+  );
+
+  Services.prefs.setBoolPref("devtools.netmonitor.persistlog", false);
+  return teardown(monitor);
+
+  /**
+   * Reload the page and wait for 2 GET requests.
+   */
+  async function reloadAndWait() {
+    const wait = waitForNetworkEvents(monitor, 2);
+    await reloadBrowser();
+    return wait;
+  }
+});