Test for btrfs custom storage scenario

test/check-storage-cockpit

@@ -338,6 +338,58 @@ class TestStorageCockpitIntegration(VirtInstallMachineCase, StorageCase):
         self.assertTrue("/mnt/sysroot btrfs noauto,subvol=root 0 0" in fstab)
         self.assertTrue("/mnt/sysroot/home btrfs noauto,subvol=home 0 0" in fstab)
 
+    @nondestructive
+    def testBtrfsAndConfigureedStorage(self):
+        b = self.browser
+        m = self.machine
+        i = Installer(b, m, scenario="use-configured-storage")
+        s = Storage(b, m)
+        r = Review(b, m)
+
+        i.open()
+        i.reach(i.steps.INSTALLATION_METHOD)
+        s.wait_scenario_visible("use-configured-storage", False)
+        s.check_single_disk_destination("vda")
+        s.modify_storage()
+        s.confirm_entering_cockpit_storage()
+        b.wait_visible(".cockpit-storage-integration-sidebar")
+
+        frame = "iframe[name='cockpit-storage']"
+        b._wait_present(frame)
+        b.switch_to_frame("cockpit-storage")
+        b._wait_present("#storage.ct-page-fill")
+
+        # Create GPT partition table
+        self.click_dropdown(self.card_row("Storage", 1), "Create partition table")
+        self.confirm()
+
+        # Create BIOS boot partition
+        self.click_dropdown(self.card_row("Storage", 2), "Create partition")
+        self.dialog({"size": 1, "type": "biosboot"})
+
+        # Create ext4 partition for /boot
+        self.click_dropdown(self.card_row("Storage", 3), "Create partition")
+        self.dialog({"size": 1070, "type": "ext4", "mount_point": "/boot"})
+
+        # Create Btrfs partition for /
+        self.click_dropdown(self.card_row("Storage", 4), "Create partition")
+        self.dialog({"type": "btrfs", "mount_point": "/"})
+
+        # Exit the cockpit-storage iframe
+        b.switch_to_top()
+
+        s.return_to_installation()
+        s.return_to_installation_confirm()
+
+        s.set_partitioning("use-configured-storage")
+
+        i.reach(i.steps.REVIEW)
+
+        # verify review screen
+        dev = "vda"
+        r.check_disk(dev, "16.1 GB vda (0x1af4)")
+
+        i.begin_installation(button_text="Install")
 
 
 if __name__ == '__main__':