[8.x] Allow a specific seeder to be used in tests (#35864)

* Allow a specific seeder to be used in tests

* if $seeder is set within a test use it instead of the default.

* Update RefreshDatabase.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: patrickomeara

src/Illuminate/Foundation/Testing/RefreshDatabase.php

@@ -79,11 +79,15 @@ protected function refreshTestDatabase()
      */
     protected function migrateFreshUsing()
     {
-        return [
-            '--drop-views' => $this->shouldDropViews(),
-            '--drop-types' => $this->shouldDropTypes(),
-            '--seed' => $this->shouldSeed(),
-        ];
+        $seeder = $this->seeder();
+
+        return array_merge(
+            [
+                '--drop-views' => $this->shouldDropViews(),
+                '--drop-types' => $this->shouldDropTypes(),
+            ],
+            $seeder ? ['--seeder' => $seeder] : ['--seed' => $this->shouldSeed()]
+        );
     }
 
     /**
@@ -157,4 +161,14 @@ protected function shouldSeed()
     {
         return property_exists($this, 'seed') ? $this->seed : false;
     }
+
+    /**
+     * Determine the specific seeder class that should be used when refreshing the database.
+     *
+     * @return mixed
+     */
+    protected function seeder()
+    {
+        return property_exists($this, 'seeder') ? $this->seeder : false;
+    }
 }