/** * Tests the last() method when on an empty collection * * @return void */ public function testLAstWithEmptyCollection() { $collection = new Collection([]); $this->assertNull($collection->last()); }
/** * Tests the last() method * * @return void */ public function testLast() { $collection = new Collection([1, 2, 3]); $this->assertEquals(3, $collection->last()); $collection = $collection->map(function ($e) { return $e * 2; }); $this->assertEquals(6, $collection->last()); }