1 files changed, 68 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_pane-collapse.js b/devtools/client/netmonitor/test/browser_net_pane-collapse.js
new file mode 100644
index 0000000000..465b4740ac
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_pane-collapse.js
@@ -0,0 +1,68 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests if the network monitor panes collapse properly.
+ */
+
+add_task(async function () {
+  const { monitor } = await initNetMonitor(SIMPLE_URL, {
+    requestCount: 1,
+  });
+  info("Starting test... ");
+
+  const { document, store, windowRequire } = monitor.panelWin;
+  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
+  const { Prefs } = windowRequire("devtools/client/netmonitor/src/utils/prefs");
+
+  const wait = waitForNetworkEvents(monitor, 1);
+  await reloadBrowser();
+  await wait;
+
+  ok(
+    !document.querySelector(".network-details-bar") &&
+      !document.querySelector(".sidebar-toggle"),
+    "The details panel should initially be hidden."
+  );
+
+  store.dispatch(Actions.toggleNetworkDetails());
+
+  is(
+    ~~document.querySelector(".network-details-bar").clientWidth,
+    Prefs.networkDetailsWidth,
+    "The details panel has an incorrect width."
+  );
+  ok(
+    document.querySelector(".network-details-bar") &&
+      document.querySelector(".sidebar-toggle"),
+    "The details panel should at this point be visible."
+  );
+
+  EventUtils.sendMouseEvent(
+    { type: "click" },
+    document.querySelector(".sidebar-toggle")
+  );
+
+  ok(
+    !document.querySelector(".network-details-bar") &&
+      !document.querySelector(".sidebar-toggle"),
+    "The details panel should not be visible after collapsing."
+  );
+
+  store.dispatch(Actions.toggleNetworkDetails());
+
+  is(
+    ~~document.querySelector(".network-details-bar").clientWidth,
+    Prefs.networkDetailsWidth,
+    "The details panel has an incorrect width after uncollapsing."
+  );
+  ok(
+    document.querySelector(".network-details-bar") &&
+      document.querySelector(".sidebar-toggle"),
+    "The details panel should be visible again after uncollapsing."
+  );
+
+  await teardown(monitor);
+});