Assertions (iddialar)

<?php
// Bu derste TestCase'i basitçe tanımlıyoruz
class TestCase {
    protected function assertEquals($expected, $actual): void {
        if ($expected !== $actual) {
            throw new Exception("Beklenen $expected, gerçek $actual");
        }
    }
    protected function assertTrue($condition): void {
        if ($condition !== true) { throw new Exception("Koşul true değil"); }
    }
    protected function assertCount($expected, $actual): void {
        if (count($actual) !== $expected) {
            throw new Exception("Beklenen sayı $expected, gerçek " . count($actual));
        }
    }
}

class ScoreKeeper {
    public array $scores = [];
    public function add(int $p): void { $this->scores[] = $p; }
    public function average(): float {
        return count($this->scores) ? array_sum($this->scores) / count($this->scores) : 0;
    }
}

class ScoreKeeperTest extends TestCase {
    public function testStats(): void {
        $sk = new ScoreKeeper();
        $sk->add(10);
        $sk->add(20);
        $this->assertEquals(30, array_sum($sk->scores));
        $this->assertCount(2, $sk->scores);
        $this->assertTrue($sk->average() > 10);
    }
}

// Testi çalıştır
$test = new ScoreKeeperTest();
$test->testStats();
echo "testStats: BAŞARILI\n";