PHPUnit: Mock abstract class

PHPUnitMockAbstractClass.md

use PHPUnit\Framework\TestCase;

abstract class Greeting
{
    public function hello($name)
    {
        return 'Hello '.$name;
    }
}

class GreetingTest extends TestCase
{
    public function testSayHello()
    {
        $greeting = $this->getMockForAbstractClass(Greeting::class);

        $this->assertEquals('Hello Lucas', $greeting->hello('Lucas'));
    }
}