make all test pass

updated seeder to be informative
fix seeder error on test

tests/TestCase.php

@@ -8,6 +8,6 @@ use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
 
 abstract class TestCase extends BaseTestCase
 {
-    use RefreshDatabase;
-    use CreatesApplication;
+    use RefreshDatabase; 
+    use CreatesApplication; 
 }