<?php

namespace Amp\Parallel\Test\Context;

use Amp\Loop;
use Amp\Parallel\Context\Process;
use Amp\PHPUnit\TestCase;

class ProcessTest extends TestCase {
    public function testBasicProcess() {
        Loop::run(function () {
            $process = new Process([
                __DIR__ . "/test-process.php",
                "Test"
            ]);
            yield $process->start();
            $this->assertSame("Test", yield $process->join());
        });
    }

    /**
     * @expectedException \Amp\Parallel\Sync\PanicError
     * @expectedExceptionMessage No string provided
     */
    public function testFailingProcess() {
        Loop::run(function () {
            $process = new Process(__DIR__ . "/test-process.php");
            yield $process->start();
            yield $process->join();
        });
    }

    /**
     * @expectedException \Amp\Parallel\Sync\PanicError
     * @expectedExceptionMessage No script found at 'test-process.php'
     */
    public function testInvalidScriptPath() {
        Loop::run(function () {
            $process = new Process("test-process.php");
            yield $process->start();
            yield $process->join();
        });
    }

    /**
     * @expectedException \Amp\Parallel\Sync\PanicError
     * @expectedExceptionMessage The given data cannot be sent because it is not serializable
     */
    public function testInvalidResult() {
        Loop::run(function () {
            $process = new Process(__DIR__ . "/invalid-result-process.php");
            yield $process->start();
            var_dump(yield $process->join());
        });
    }

    /**
     * @expectedException \Amp\Parallel\Sync\PanicError
     * @expectedExceptionMessage did not return a callable function
     */
    public function testNoCallbackReturned() {
        Loop::run(function () {
            $process = new Process(__DIR__ . "/no-callback-process.php");
            yield $process->start();
            var_dump(yield $process->join());
        });
    }

    /**
     * @expectedException \Amp\Parallel\Sync\PanicError
     * @expectedExceptionMessage Uncaught ParseError in execution context
     */
    public function testParseError() {
        Loop::run(function () {
            $process = new Process(__DIR__ . "/parse-error-process.inc");
            yield $process->start();
            var_dump(yield $process->join());
        });
    }
}