1 files changed, 34 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_minimize.js b/browser/base/content/test/general/browser_minimize.js
new file mode 100644
index 0000000000..694808f516
--- /dev/null
+++ b/browser/base/content/test/general/browser_minimize.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function() {
+  registerCleanupFunction(function() {
+    window.restore();
+  });
+  function waitForActive() {
+    return gBrowser.selectedTab.linkedBrowser.docShellIsActive;
+  }
+  function waitForInactive() {
+    return !gBrowser.selectedTab.linkedBrowser.docShellIsActive;
+  }
+  await TestUtils.waitForCondition(waitForActive);
+  is(
+    gBrowser.selectedTab.linkedBrowser.docShellIsActive,
+    true,
+    "Docshell should be active"
+  );
+  window.minimize();
+  await TestUtils.waitForCondition(waitForInactive);
+  is(
+    gBrowser.selectedTab.linkedBrowser.docShellIsActive,
+    false,
+    "Docshell should be Inactive"
+  );
+  window.restore();
+  await TestUtils.waitForCondition(waitForActive);
+  is(
+    gBrowser.selectedTab.linkedBrowser.docShellIsActive,
+    true,
+    "Docshell should be active again"
+  );
+});