FilterValidator test

tests/unit/framework/validators/FilterValidatorTest.php

+<?php
+
+namespace yiiunit\framework\validators;
+
+
+use yii\validators\FilterValidator;
+use yiiunit\data\validators\models\FakedValidationModel;
+use yiiunit\TestCase;
+
+class FilterValidatorTest extends TestCase
+{
+	public function testAssureExceptionOnInit()
+	{
+		$this->setExpectedException('yii\base\InvalidConfigException');
+		$val = new FilterValidator();
+	}
+
+	public function testValidateAttribute()
+	{
+		$m = FakedValidationModel::createWithAttributes(array(
+				'attr_one' => '  to be trimmed  ',
+				'attr_two' => 'set this to null',
+				'attr_empty1' => '',
+				'attr_empty2' => null
+		));
+		$val = new FilterValidator(array('filter' => 'trim'));
+		$val->validateAttribute($m, 'attr_one');
+		$this->assertSame('to be trimmed', $m->attr_one);
+		$val->filter = function ($value) {
+			return null;
+		};
+		$val->validateAttribute($m, 'attr_two');
+		$this->assertNull($m->attr_two);
+		$val->filter = array($this, 'notToBeNull');
+		$val->validateAttribute($m, 'attr_empty1');
+		$this->assertSame($this->notToBeNull(''), $m->attr_empty1);
+		$val->skipOnEmpty = true;
+		$val->validateAttribute($m, 'attr_empty2');
+		$this->assertNotNull($m->attr_empty2);
+	}
+
+	public function notToBeNull($value)
+	{
+		return 'not null';
+	}
+}
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