<?php

namespace Clue\Tests\React\Zenity;

use PHPUnit\Framework\TestCase as BaseTestCase;

class TestCase extends BaseTestCase
{
    protected function expectCallableOnce()
    {
        $mock = $this->createCallableMock();

        $mock
            ->expects($this->once())
            ->method('__invoke');

        return $mock;
    }

    protected function expectCallableOnceWith($value)
    {
        $mock = $this->createCallableMock();

        $mock
            ->expects($this->once())
            ->method('__invoke')
            ->with($this->equalTo($value));

        return $mock;
    }

    protected function expectCallableNever()
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects($this->never())
            ->method('__invoke');

        return $mock;
    }

    /**
     * @link https://github.com/reactphp/react/blob/master/tests/React/Tests/Socket/TestCase.php (taken from reactphp/react)
     */
    protected function createCallableMock()
    {
        if (method_exists('PHPUnit\Framework\MockObject\MockBuilder', 'addMethods')) {
            // PHPUnit 9+
            return $this->getMockBuilder('stdClass')->addMethods(array('__invoke'))->getMock();
        } else {
            // legacy PHPUnit 4 - PHPUnit 8
            return $this->getMockBuilder('stdClass')->setMethods(array('__invoke'))->getMock();
        }
    }

    protected function expectPromiseResolve($promise)
    {
        $this->assertInstanceOf('React\Promise\PromiseInterface', $promise);

        $promise->then($this->expectCallableOnce(), $this->expectCallableNever());

        return $promise;
    }

    protected function expectPromiseReject($promise)
    {
        $this->assertInstanceOf('React\Promise\PromiseInterface', $promise);

        $promise->then($this->expectCallableNever(), $this->expectCallableOnce());

        return $promise;
    }
}
