function testGetEarliestYear()
{
$vehicle1 = $this->createVehicle(array('make'=>'Honda','model'=>'civic','year'=>2000));
$vehicle2 = $this->createVehicle(array('make'=>'Honda','model'=>'civic','year'=>2001));
$vehicle3 = $this->createVehicle(array('make'=>'Honda','model'=>'civic','year'=>2002));
$vehicle4 = $this->createVehicle(array('make'=>'Honda','model'=>'civic','year'=>2003));
$selection = new VF_Vehicle_Selection(array($vehicle2,$vehicle1,$vehicle3,$vehicle4));
$this->assertEquals(2000, $selection->earliestYear());
}
function testShouldDetectEarliestYearInRange()
{
$selection = new VF_Vehicle_Selection(array('make' => 'Honda', 'model' => 'Civic', 'year_start' => '2000', 'year_end' => '2005'));
$this->assertEquals('2000', $selection->earliestYear(), 'should detect earliest year in year range');
}