What are some best practices for writing effective unit tests in PHP and JS applications?

Best practices for writing effective unit tests in PHP and JS applications include writing clear, descriptive test names, keeping tests focused on one specific aspect of the code, using fixtures to set up test data, and ensuring tests are independent and can be run in any order. PHP example: 

public function testCalculateTotal()
{
    $cart = new Cart();
    $cart->addItem(new Item('Product A', 10));
    $cart->addItem(new Item('Product B', 20));

    $this->assertEquals(30, $cart->calculateTotal());
}

Keywords

unit testing PHP JavaScript PHPUnit Jest

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