Test new public find() method as well.

tests/CP/Navigation/NavTest.php

@@ -124,14 +124,35 @@ public function it_can_create_a_nav_item_with_a_custom_svg_icon()
     }
 
     /** @test */
-    public function it_can_get_and_modify_an_existing_item()
+    public function it_can_find_and_modify_an_existing_item()
     {
         $this->actingAs(tap(User::make()->makeSuper())->save());
 
         Nav::droids('WAC-47')
             ->url('/pit-droid')
             ->icon('<svg>...</svg>');
 
+        Nav::find('Droids', 'WAC-47')
+            ->url('/d-squad');
+
+        $item = $this->build()->get('Droids')->first();
+
+        $this->assertEquals('Droids', $item->section());
+        $this->assertEquals('WAC-47', $item->display());
+        $this->assertEquals('<svg>...</svg>', $item->icon());
+        $this->assertEquals('http://localhost/d-squad', $item->url());
+    }
+
+    /** @test */
+    public function it_can_find_and_modify_an_existing_item_using_magic_constructor()
+    {
+        $this->actingAs(tap(User::make()->makeSuper())->save());
+
+        Nav::droids('WAC-47')
+            ->url('/pit-droid')
+            ->icon('<svg>...</svg>');
+
+        // Callign the same constructor does a `findOrCreate()` under the hood...
         Nav::droids('WAC-47')
             ->url('/d-squad');