public function testIsConcrete() { $a = new Article(); $this->assertFalse($a->isConcrete()); // $a->save(); // $this->assertTrue($a->isConcrete()); $a = new Article(); $this->assertFalse($a->isConcrete()); $a->populate(array('id' => 12, 'title' => 'Title')); $this->assertTrue($a->isConcrete()); }