/**
  * @covers SimpleORM\AbstractDataMapper::AddMappingField
  */
 public function testAddMappingField_SoftDelete()
 {
     \TestHelper::callMethod($this->object, 'addMappingField', ['myfield', ['field' => 'tb_mayfield', 'softdelete' => true]]);
     $correct = ['myfield' => ['field' => 'tb_mayfield', 'softdelete' => true]];
     //-----------------
     $mapping_fields = \TestHelper::getProtectedAttribute($this->object, 'mapping_fields');
     $this->assertEquals($mapping_fields, $correct);
     $soft_delete_key = \TestHelper::getProtectedAttribute($this->object, 'soft_delete_key');
     $this->assertEquals($soft_delete_key, 'tb_mayfield');
 }