1 files changed, 57 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_background_update.js b/devtools/client/netmonitor/test/browser_net_background_update.js
new file mode 100644
index 0000000000..e46db87a79
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_background_update.js
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Check that network logs created when the Net panel is not visible
+ * are displayed when the user shows the panel again.
+ */
+add_task(async () => {
+  const { tab, monitor, toolbox } = await initNetMonitor(CUSTOM_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));
+
+  // Execute two requests
+  await performRequests(monitor, tab, 2);
+
+  // Wait for two logs
+  await waitUntil(
+    () => document.querySelectorAll(".request-list-item").length == 2
+  );
+
+  info("Select the inspector");
+  await toolbox.selectTool("inspector");
+
+  info("Wait for Net panel to be hidden");
+  await waitUntil(() => document.visibilityState == "hidden");
+
+  // Execute another two requests
+  await performRequests(monitor, tab, 2);
+
+  // The number of rendered requests should be the same since
+  // requests shouldn't be rendered while the net panel is in
+  // background
+  is(
+    document.querySelectorAll(".request-list-item").length,
+    2,
+    "There should be expected number of requests"
+  );
+
+  info("Select the Net panel again");
+  await toolbox.selectTool("netmonitor");
+
+  // Wait for another two logs to be rendered since the panel
+  // is selected now.
+  await waitUntil(
+    () => document.querySelectorAll(".request-list-item").length == 4
+  );
+
+  return teardown(monitor);
+});