public function testProduct() { $product = new Product($this->title, $this->unitPrice, $this->size, $this->description); $this->assertEquals($this->title, $product->getTitle()); $this->assertEquals(number_format($this->unitPrice, 2), $product->getUnitPrice()); $this->assertEquals('1.5kb', $product->getSize()); $this->assertEquals($this->description, $product->getDescription()); }