public function testCalcSunExternal()
 {
     $date = new Zend_Date_DateObject(-14830988400);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => -29), -0.0145439, true), -14830958811);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => -29), -0.0145439, false), -14830924484);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => -29), -0.0145439, true), -14830968296);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => -29), -0.0145439, false), -14830915016);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => 29), -0.0145439, true), -14830972733);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => 29), -0.0145439, false), -14830938411);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => 29), -0.0145439, true), -14830982224);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => 29), -0.0145439, false), -14830928938);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => 129), -0.0145439, true), -14830910336);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => 129), -0.0145439, false), -14830962424);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => 129), -0.0145439, true), -14830919837);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => 129), -0.0145439, false), -14830952941);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => -129), -0.0145439, true), -14830934808);
     $this->assertSame($date->calcSun(array('latitude' => 38.4, 'longitude' => -129), -0.0145439, false), -14830986871);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => -129), -0.0145439, true), -14830944283);
     $this->assertSame($date->calcSun(array('latitude' => -38.4, 'longitude' => -129), -0.0145439, false), -14830977414);
 }