fixed validator test break

tests/unit/data/ar/Customer.php

 <?php
 namespace yiiunit\data\ar;
 
-use yii\db\ActiveQuery;
-
 /**
  * Class Customer
  *

tests/unit/data/validators/models/ValidatorTestMainModel.php

@@ -3,7 +3,7 @@
 namespace yiiunit\data\validators\models;
 
 
-use yii\db\ActiveRecord;
+use yiiunit\data\ar\ActiveRecord;
 
 class ValidatorTestMainModel extends ActiveRecord
 {

tests/unit/data/validators/models/ValidatorTestRefModel.php

@@ -3,7 +3,7 @@
 namespace yiiunit\data\validators\models;
 
 
-use yii\db\ActiveRecord;
+use yiiunit\data\ar\ActiveRecord;
 
 class ValidatorTestRefModel extends ActiveRecord
 {

tests/unit/framework/validators/ExistValidatorTest.php

@@ -13,7 +13,6 @@ use yiiunit\framework\db\DatabaseTestCase;
 
 class ExistValidatorTest extends DatabaseTestCase
 {
-	protected $initializeAppWithDb = true;
 	protected $driverName = 'mysql';
 
 	public function setUp()

tests/unit/framework/validators/UniqueValidatorTest.php

@@ -14,7 +14,6 @@ use yiiunit\TestCase;
 
 class UniqueValidatorTest extends DatabaseTestCase
 {
-	protected $initializeAppWithDb = true;
 	protected $driverName = 'mysql';
 
 	public function setUp()