public function testEquals() { parent::testEquals(); $productA = new Product(); $productB = new Product(); $this->assertFalse($productA->equals($productB)); $productA = Product::findOne(1); $productB = Product::findOne(2); $this->assertFalse($productA->equals($productB)); $productB = Product::findOne(1); $this->assertTrue($productA->equals($productB)); }