/**
  * @covers WindowsAzure\MediaServices\Models\ContentKeyAuthorizationPolicyRestriction::requiredFields
  */
 public function testRequiredFields()
 {
     // Setup
     $contentKeyAuthorizationRestriction = new ContentKeyAuthorizationPolicyRestriction();
     $fixture = ['KeyRestrictionType'];
     // Test
     $result = $contentKeyAuthorizationRestriction->requiredFields();
     // Assert
     $this->assertEquals($fixture, $result);
 }