diff --git a/tests/unit/data/base/InvalidRulesModel.php b/tests/unit/data/base/InvalidRulesModel.php
new file mode 100644
index 0000000..f5a8438
--- /dev/null
+++ b/tests/unit/data/base/InvalidRulesModel.php
@@ -0,0 +1,17 @@
+<?php
+namespace yiiunit\data\base;
+use yii\base\Model;
+
+/**
+ * InvalidRulesModel
+ */
+class InvalidRulesModel extends Model
+{
+	public function rules()
+	{
+		return array(
+			array('test'),
+		);
+	}
+
+}
diff --git a/tests/unit/data/base/Singer.php b/tests/unit/data/base/Singer.php
new file mode 100644
index 0000000..3305b98
--- /dev/null
+++ b/tests/unit/data/base/Singer.php
@@ -0,0 +1,21 @@
+<?php
+namespace yiiunit\data\base;
+use yii\base\Model;
+
+/**
+ * Singer
+ */
+class Singer extends Model
+{
+	public $fistName;
+	public $lastName;
+
+	public function rules()
+	{
+		return array(
+			array('lastName', 'default', 'value' => 'Lennon'),
+			array('lastName', 'required'),
+			array('underscore_style', 'yii\validators\CaptchaValidator'),
+		);
+	}
+}
\ No newline at end of file
diff --git a/tests/unit/data/base/Speaker.php b/tests/unit/data/base/Speaker.php
index 240b691..93dd496 100644
--- a/tests/unit/data/base/Speaker.php
+++ b/tests/unit/data/base/Speaker.php
@@ -1,11 +1,10 @@
 <?php
 namespace yiiunit\data\base;
+use yii\base\Model;
 
 /**
  * Speaker
  */
-use yii\base\Model;
-
 class Speaker extends Model
 {
 	public $firstName;
diff --git a/tests/unit/framework/base/ModelTest.php b/tests/unit/framework/base/ModelTest.php
index bd10f45..aa15230 100644
--- a/tests/unit/framework/base/ModelTest.php
+++ b/tests/unit/framework/base/ModelTest.php
@@ -1,8 +1,11 @@
 <?php
 
 namespace yiiunit\framework\base;
+use yii\base\Model;
 use yiiunit\TestCase;
 use yiiunit\data\base\Speaker;
+use yiiunit\data\base\Singer;
+use yiiunit\data\base\InvalidRulesModel;
 
 /**
  * ModelTest
@@ -169,4 +172,32 @@ class ModelTest extends TestCase
 		$this->assertNull($speaker['firstName']);
 		$this->assertFalse(isset($speaker['firstName']));
 	}
+
+	public function testDefaults()
+	{
+		$singer = new Model();
+		$this->assertEquals(array(), $singer->rules());
+		$this->assertEquals(array(), $singer->attributeLabels());
+	}
+
+	public function testDefaultScenarios()
+	{
+		$singer = new Singer();
+		$this->assertEquals(array('default' => array('lastName', 'underscore_style')), $singer->scenarios());
+	}
+
+	public function testIsAttributeRequired()
+	{
+		$singer = new Singer();
+		$this->assertFalse($singer->isAttributeRequired('firstName'));
+		$this->assertTrue($singer->isAttributeRequired('lastName'));
+	}
+
+	public function testCreateValidators()
+	{
+		$this->setExpectedException('yii\base\InvalidConfigException', 'Invalid validation rule: a rule must be an array specifying both attribute names and validator type.');
+
+		$invalid = new InvalidRulesModel();
+		$invalid->createValidators();
+	}
 }