public function testCanCreateFromRange() { $range = Arr::range(5); $this->assertEquals([1, 2, 3, 4, 5], $range); $range = Arr::range(-2, 2); $this->assertEquals([-2, -1, 0, 1, 2], $range); $range = Arr::range(1, 10, 2); $this->assertEquals([1, 3, 5, 7, 9], $range); }