1 files changed, 27 insertions, 0 deletions
diff --git a/devtools/client/responsive/test/browser/browser_zoom.js b/devtools/client/responsive/test/browser/browser_zoom.js
new file mode 100644
index 0000000000..8eb0db3e18
--- /dev/null
+++ b/devtools/client/responsive/test/browser/browser_zoom.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const URL = "data:text/html,foo";
+
+addRDMTaskWithPreAndPost(
+  URL,
+  async function pre({ browser }) {
+    info("Setting zoom");
+    // It's important that we do this so that we don't race with FullZoom's use
+    // of ContentSettings, which would reset the zoom.
+    FullZoom.setZoom(2.0, browser);
+  },
+  async function task({ browser, ui }) {
+    is(
+      ZoomManager.getZoomForBrowser(browser),
+      2.0,
+      "Zoom shouldn't have got lost"
+    );
+
+    // wait for the list of devices to be loaded to prevent pending promises
+    await waitForDeviceAndViewportState(ui);
+  },
+  async function post() {}
+);