public function testWeeks()
 {
     $ci = new CarbonInterval(0, 0, 1);
     $this->assertInstanceOfCarbonInterval($ci);
     $this->assertCarbonInterval($ci, 0, 0, 7, 0, 0, 0);
     $ci = CarbonInterval::weeks(2);
     $this->assertInstanceOfCarbonInterval($ci);
     $this->assertCarbonInterval($ci, 0, 0, 14, 0, 0, 0);
     $ci = CarbonInterval::week();
     $this->assertInstanceOfCarbonInterval($ci);
     $this->assertCarbonInterval($ci, 0, 0, 7, 0, 0, 0);
     $ci = CarbonInterval::week(3);
     $this->assertInstanceOfCarbonInterval($ci);
     $this->assertCarbonInterval($ci, 0, 0, 21, 0, 0, 0);
 }
 public function testFluentSettersDaysOverwritesWeeks()
 {
     $ci = CarbonInterval::weeks(3)->days(5);
     $this->assertCarbonInterval($ci, 0, 0, 5, 0, 0, 0);
 }