/**
* @test
*/
public function groupValuesIfAllParamsAreEqualsAndYearDoNot()
{
$grouper = new DataGrouper();
$this->assertTrue($grouper->groupDataValues($this->listOfValues()) instanceof HashMap);
$this->assertTrue($grouper->groupDataValues($this->listOfValues())->get(0) instanceof ArrayObject);
$this->assertEquals(3, $grouper->groupDataValues($this->listOfValues())->get(0)->count());
}
private function buildReportForDistinctGroups($valuesGroup1, $valuesGroup2, array $years, DataGrouper $grouper)
{
$group1 = $grouper->groupDataValues($valuesGroup1);
$group2 = $grouper->groupDataValues($valuesGroup2);
return $this->buildForGroupedData(array($group1, $group2), $years);
}