What are some examples of PHP unit testing?

What are some examples of PHP unit testing?

PHP unit testing involves writing tests for your PHP code to ensure it behaves as expected. For example, you can use PHPUnit to test a simple function that adds two numbers.

Can you show me a basic PHPUnit test case?

Sure! Here's a simple test case:

use PHPUnit\Framework\TestCase;

class MathTest extends TestCase {
    public function testAdd() {
        $this->assertEquals(4, add(2, 2));
    }
}

This tests an add function to ensure it returns the correct sum.

What if I want to test for exceptions?

You can use the expectException method in PHPUnit. For example:

public function testAddThrowsException() {
    $this->expectException(InvalidArgumentException::class);
    add('a', 'b');
}

This tests that an exception is thrown when invalid arguments are passed.