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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\Small;
use PHPUnit\Framework\ExpectationFailedException;
use PHPUnit\Framework\TestCase;
#[CoversClass(Callback::class)]
#[CoversClass(Constraint::class)]
#[Small]
final class CallbackTest extends TestCase
{
public function testCanBeEvaluated(): void
{
$this->assertTrue($this->acceptingCallbackConstraint()->evaluate('actual', returnResult: true));
$this->assertFalse($this->rejectingCallbackConstraint()->evaluate('actual', returnResult: true));
try {
$this->rejectingCallbackConstraint()->evaluate('actual');
} catch (ExpectationFailedException $e) {
$this->assertSame('Failed asserting that \'actual\' is accepted by specified callback.', $e->getMessage());
return;
}
$this->fail();
}
public function testCanBeRepresentedAsString(): void
{
$this->assertSame('is accepted by specified callback', $this->acceptingCallbackConstraint()->toString());
}
public function testIsCountable(): void
{
$this->assertCount(1, $this->acceptingCallbackConstraint());
}
public function testIsVariadic(): void
{
$class = new class
{
public function __invoke(string ...$values): void
{
}
};
$this->assertTrue((new Callback($class))->isVariadic());
}
public function testIsNotVariadic(): void
{
$class = new class
{
public function __invoke(string $value): void
{
}
};
$this->assertFalse((new Callback($class))->isVariadic());
}
private function acceptingCallbackConstraint(): Callback
{
return new Callback(static fn (): bool => true);
}
private function rejectingCallbackConstraint(): Callback
{
return new Callback(static fn (): bool => false);
}
}
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