<?php

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer\Test\Downloader;

use Composer\Downloader\GitDownloader;

class GitDownloaderTest extends \PHPUnit_Framework_TestCase
{
    /**
     * @expectedException \InvalidArgumentException
     */
    public function testDownloadForPackageWithoutSourceReference()
    {
        $packageMock = $this->getMock('Composer\Package\PackageInterface');
        $packageMock->expects($this->once())
            ->method('getSourceReference')
            ->will($this->returnValue(null));

        $downloader = new GitDownloader();
        $downloader->download($packageMock, '/path');
    }

    public function testDownload()
    {
        $expectedGitCommand = 'git clone \'https://github.com/l3l0/composer\' composerPath && cd composerPath && git checkout \'ref\' && git reset --hard \'ref\'';
        $packageMock = $this->getMock('Composer\Package\PackageInterface');
        $packageMock->expects($this->any())
            ->method('getSourceReference')
            ->will($this->returnValue('ref'));
        $packageMock->expects($this->once())
            ->method('getSourceUrl')
            ->will($this->returnValue('https://github.com/l3l0/composer'));
        $processExecutor = $this->getMock('Composer\Util\ProcessExecutor');
        $processExecutor->expects($this->once())
            ->method('execute')
            ->with($this->equalTo($expectedGitCommand));

        $downloader = new GitDownloader($processExecutor);
        $downloader->download($packageMock, 'composerPath');
    }

    /**
     * @expectedException \InvalidArgumentException
     */
    public function testUpdateforPackageWithoutSourceReference()
    {
        $initialPackageMock = $this->getMock('Composer\Package\PackageInterface');
        $sourcePackageMock = $this->getMock('Composer\Package\PackageInterface');
        $sourcePackageMock->expects($this->once())
            ->method('getSourceReference')
            ->will($this->returnValue(null));

        $downloader = new GitDownloader();
        $downloader->update($initialPackageMock, $sourcePackageMock, '/path');
    }

    public function testUpdate()
    {
        $expectedGitUpdateCommand = 'cd composerPath && git fetch && git checkout ref && git reset --hard ref';
        $expectedGitResetCommand = 'cd composerPath && git status --porcelain';

        $packageMock = $this->getMock('Composer\Package\PackageInterface');
        $packageMock->expects($this->any())
            ->method('getSourceReference')
            ->will($this->returnValue('ref'));
        $packageMock->expects($this->any())
            ->method('getSourceUrl')
            ->will($this->returnValue('https://github.com/l3l0/composer'));
        $processExecutor = $this->getMock('Composer\Util\ProcessExecutor');
        $processExecutor->expects($this->at(0))
            ->method('execute')
            ->with($this->equalTo($expectedGitResetCommand));
        $processExecutor->expects($this->at(1))
            ->method('execute')
            ->with($this->equalTo($expectedGitUpdateCommand));

        $downloader = new GitDownloader($processExecutor);
        $downloader->update($packageMock, $packageMock, 'composerPath');
    }

    public function testRemove()
    {
        $expectedGitResetCommand = 'cd composerPath && git status --porcelain';

        $packageMock = $this->getMock('Composer\Package\PackageInterface');
        $processExecutor = $this->getMock('Composer\Util\ProcessExecutor');
        $processExecutor->expects($this->any())
            ->method('execute')
            ->with($this->equalTo($expectedGitResetCommand));

        $downloader = new GitDownloader($processExecutor);
        $downloader->remove($packageMock, 'composerPath');
    }

    public function testGetInstallationSource()
    {
        $downloader = new GitDownloader();
        
        $this->assertEquals('source', $downloader->getInstallationSource());
    }
}