Method with an enum argument and default value can't be mocked

[bicpi]

Hi,
given this enum (PHP 8.1+):

enum AppType
{
    case IOS;
    case ANDROID;
}

And an interface with a method using the enum as default argument of a method:

interface BarService
{
    public function doIt(AppType $appType = AppType::ANDROID): void;
}

And a service using the interface as a dependency:

class FooService
{
    public function __construct(
        readonly private BarService $bar
    ) {
    }

    public function execute(): void
    {
        $this->bar->doIt();
    }
}

The following test fails:

namespace Tests;

use PHPUnit\Framework\TestCase;
use Prophecy\PhpUnit\ProphecyTrait;

enum AppType {...}
interface BarService {...}
class FooService {...}

class FooServiceTest extends TestCase
{
    use ProphecyTrait;

    /**
     * @test
     */
    public function it_fails(): void
    {
        $someService = $this->prophesize(BarService::class);
        $someService
            ->doIt()
            ->shouldBeCalled();

        $fooService = new FooService($someService->reveal());
        $fooService->execute();
    }
}

The error message is:

Error : Class "Double\BarService\Tests\AppType" not found

When passing the default value explicitly works though.

[stof]

This error has nothing to do with new in initializers (there is no new in your initializers). It is about support for enums in default values of an argument.

[bicpi]

True, I think I also observed an issue with new usage, I'll refine the description.

[stof]

If there is also an issue with new (which is likely as we haven't done anything to support it), please open a separate issue for it (as the fix might not be the same).

[bicpi]

I reduced this issue to the problem with the enum argument; after testing the case with the new usage in a method's default value, I created the separate issue #568.

[lyrixx]

I confirm the issue.

As soon as a default value is used for an argument typed with a Enum, prophecy crash.

[jdreesen]

I can also confirm this. The problem is, that the generated default value is in the wrong namespace, because the leading \ is missing.

This seems only to be a problem in PHP 8.1, see: https://3v4l.org/3JPCM

I proposed a fix: #618