Testing Output

Testing Output

class OutputTest extends TestCase {
    public function testPrintsHello(): void {
        $this->expectOutputString("Hello, World!");
        (new Greeter)->greet("World");
    }

    public function testOutputContains(): void {
        $this->expectOutputRegex("/Hello, w+!/");
        (new Greeter)->greet("Alice");
    }

    // Capture output manually
    public function testCaptureOutput(): void {
        ob_start();
        (new Greeter)->greet("Bob");
        $output = ob_get_clean();

        $this->assertStringContainsString("Bob", $output);
    }

    // Test JSON output
    public function testJsonResponse(): void {
        ob_start();
        (new ApiController)->users();
        $raw = ob_get_clean();

        $data = json_decode($raw, true);
        $this->assertArrayHasKey("data", $data);
        $this->assertEquals(200, $data["status"]);
    }
}