Implement driverSwitched handler

Since init code is being moved to doConfigure, it wouldn't run following
a driverSwitched event ordinarily, so doConfigure should be called from
the driverSwitched event handler.

Author: nickolas-deboom

drivers/SmartThings/matter-switch/src/init.lua

@@ -764,6 +764,10 @@ local function do_configure(driver, device)
   end
 end
 
+local function driver_switched(driver, device)
+  do_configure(driver, device)
+end
+
 local function device_removed(driver, device)
   log.info("device removed")
   delete_import_poll_schedule(device)
@@ -1446,7 +1450,8 @@ local matter_driver_template = {
     added = device_added,
     removed = device_removed,
     infoChanged = info_changed,
-    doConfigure = do_configure
+    doConfigure = do_configure,
+    driverSwitched = driver_switched
   },
   matter_handlers = {
     attr = {

drivers/SmartThings/matter-switch/src/test/test_matter_multi_button_switch_mcd.lua

@@ -408,5 +408,21 @@ test.register_coroutine_test(
   { test_init = test_init_mcd_unsupported_switch_device_type }
 )
 
+test.register_coroutine_test(
+  "Test driver switched event",
+  function()
+    test.socket.device_lifecycle:__queue_receive({ mock_device.id, "driverSwitched" })
+    mock_device:expect_metadata_update({ profile = "light-level-3-button" })
+    configure_buttons()
+    mock_device:expect_device_create({
+      type = "EDGE_CHILD",
+      label = "Matter Switch 2",
+      profile = "light-color-level",
+      parent_device_id = mock_device.id,
+      parent_assigned_child_key = string.format("%d", mock_device_ep5)
+    })
+  end
+)
+
 -- run the tests
 test.run_registered_tests()