public function testGetDisplayLabel()
 {
     $displayAttribute = new DisplayAttributeForReportForm('ReportsTestModule', 'ReportModelTestItem', Report::TYPE_SUMMATION);
     $displayAttribute->attributeIndexOrDerivedType = 'string';
     $this->assertEquals('String', $displayAttribute->getDisplayLabel());
     $displayAttribute->attributeIndexOrDerivedType = 'hasOne___name';
     $this->assertEquals('ReportModelTestItem2 >> Name', $displayAttribute->getDisplayLabel());
     $displayAttribute->attributeIndexOrDerivedType = 'hasMany___name';
     $this->assertEquals('ReportModelTestItem3s >> Name', $displayAttribute->getDisplayLabel());
     $displayAttribute->attributeIndexOrDerivedType = 'primaryAddress___street1';
     $this->assertEquals('Primary Address >> Street 1', $displayAttribute->getDisplayLabel());
 }