<?php
/**
 * CakePHP(tm) Tests <http://book.cakephp.org/2.0/en/development/testing.html>
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://book.cakephp.org/2.0/en/development/testing.html CakePHP(tm) Tests
 * @since         1.2.0
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */
namespace Cake\Test\TestCase\Console;

use Cake\Console\ShellDispatcher;
use Cake\Core\App;
use Cake\Core\Configure;
use Cake\Core\Plugin;
use Cake\TestSuite\TestCase;

/**
 * ShellDispatcherTest
 *
 */
class ShellDispatcherTest extends TestCase
{

    /**
     * setUp method
     *
     * @return void
     */
    public function setUp()
    {
        parent::setUp();
        Plugin::load('TestPlugin');
        Configure::write('App.namespace', 'TestApp');
        $this->dispatcher = $this->getMock('Cake\Console\ShellDispatcher', ['_stop']);
    }

    /**
     * teardown
     *
     * @return void
     */
    public function tearDown()
    {
        parent::tearDown();
        ShellDispatcher::resetAliases();
    }

    /**
     * Test error on missing shell
     *
     * @expectedException \Cake\Console\Exception\MissingShellException
     * @return void
     */
    public function testFindShellMissing()
    {
        $this->dispatcher->findShell('nope');
    }

    /**
     * Test error on missing plugin shell
     *
     * @expectedException \Cake\Console\Exception\MissingShellException
     * @return void
     */
    public function testFindShellMissingPlugin()
    {
        $this->dispatcher->findShell('test_plugin.nope');
    }

    /**
     * Verify loading of (plugin-) shells
     *
     * @return void
     */
    public function testFindShell()
    {
        $result = $this->dispatcher->findShell('sample');
        $this->assertInstanceOf('TestApp\Shell\SampleShell', $result);

        $result = $this->dispatcher->findShell('test_plugin.example');
        $this->assertInstanceOf('TestPlugin\Shell\ExampleShell', $result);
        $this->assertEquals('TestPlugin', $result->plugin);
        $this->assertEquals('Example', $result->name);

        $result = $this->dispatcher->findShell('TestPlugin.example');
        $this->assertInstanceOf('TestPlugin\Shell\ExampleShell', $result);

        $result = $this->dispatcher->findShell('TestPlugin.Example');
        $this->assertInstanceOf('TestPlugin\Shell\ExampleShell', $result);
    }

    /**
     * testAddShortPluginAlias
     *
     * @return void
     */
    public function testAddShortPluginAlias()
    {
        $expected = [
            'Example' => 'TestPlugin.example'
        ];
        $result = $this->dispatcher->addShortPluginAliases();
        $this->assertSame($expected, $result, 'Should return the list of aliased plugin shells');

        ShellDispatcher::alias('Example', 'SomeOther.PluginsShell');
        $expected = [
            'Example' => 'SomeOther.PluginsShell'
        ];
        $result = $this->dispatcher->addShortPluginAliases();
        $this->assertSame($expected, $result, 'Should not overwrite existing aliases');
    }

    /**
     * Test getting shells with aliases.
     *
     * @return void
     */
    public function testFindShellAliased()
    {
        ShellDispatcher::alias('short', 'test_plugin.example');

        $result = $this->dispatcher->findShell('short');
        $this->assertInstanceOf('TestPlugin\Shell\ExampleShell', $result);
        $this->assertEquals('TestPlugin', $result->plugin);
        $this->assertEquals('Example', $result->name);
    }

    /**
     * Test finding a shell that has a matching alias.
     *
     * Aliases should not overload concrete shells.
     *
     * @return void
     */
    public function testFindShellAliasedAppShadow()
    {
        ShellDispatcher::alias('sample', 'test_plugin.example');

        $result = $this->dispatcher->findShell('sample');
        $this->assertInstanceOf('TestApp\Shell\SampleShell', $result);
        $this->assertEmpty($result->plugin);
        $this->assertEquals('Sample', $result->name);
    }

    /**
     * Verify correct dispatch of Shell subclasses with a main method
     *
     * @return void
     */
    public function testDispatchShellWithMain()
    {
        $dispatcher = $this->getMock('Cake\Console\ShellDispatcher', ['findShell']);
        $Shell = $this->getMock('Cake\Console\Shell');

        $Shell->expects($this->exactly(2))->method('initialize');
        $Shell->expects($this->at(0))->method('runCommand')
            ->will($this->returnValue(true));
        $Shell->expects($this->at(1))->method('runCommand')
            ->will($this->returnValue(null));

        $dispatcher->expects($this->any())
            ->method('findShell')
            ->with('mock_with_main')
            ->will($this->returnValue($Shell));

        $dispatcher->args = ['mock_with_main'];
        $result = $dispatcher->dispatch();
        $this->assertSame(0, $result);
        $this->assertEquals([], $dispatcher->args);

        $dispatcher->args = ['mock_with_main'];
        $result = $dispatcher->dispatch();
        $this->assertSame(0, $result);
        $this->assertEquals([], $dispatcher->args);
    }

    /**
     * Verify correct dispatch of Shell subclasses without a main method
     *
     * @return void
     */
    public function testDispatchShellWithoutMain()
    {
        $dispatcher = $this->getMock('Cake\Console\ShellDispatcher', ['findShell']);
        $Shell = $this->getMock('Cake\Console\Shell');

        $Shell->expects($this->once())->method('initialize');
        $Shell->expects($this->once())->method('runCommand')
            ->with(['initdb'])
            ->will($this->returnValue(true));

        $dispatcher->expects($this->any())
            ->method('findShell')
            ->with('mock_without_main')
            ->will($this->returnValue($Shell));

        $dispatcher->args = ['mock_without_main', 'initdb'];
        $result = $dispatcher->dispatch();
        $this->assertEquals(0, $result);
    }

    /**
     * Verify you can dispatch a plugin's main shell with the shell name alone
     *
     * @return void
     */
    public function testDispatchShortPluginAlias()
    {
        $dispatcher = $this->getMock(
            'Cake\Console\ShellDispatcher',
            ['_shellExists', '_createShell']
        );
        $Shell = $this->getMock('Cake\Console\Shell');

        $dispatcher->expects($this->at(1))
            ->method('_shellExists')
            ->with('TestPlugin.Example')
            ->will($this->returnValue('TestPlugin\Console\Command\TestPluginShell'));

        $dispatcher->expects($this->at(2))
            ->method('_createShell')
            ->with('TestPlugin\Console\Command\TestPluginShell', 'TestPlugin.Example')
            ->will($this->returnValue($Shell));

        $dispatcher->args = ['example'];
        $result = $dispatcher->dispatch();
        $this->assertEquals(0, $result);
    }

    /**
     * Ensure short plugin shell usage is case/camelized insensitive
     *
     * @return void
     */
    public function testDispatchShortPluginAliasCamelized()
    {
        $dispatcher = $this->getMock(
            'Cake\Console\ShellDispatcher',
            ['_shellExists', '_createShell']
        );
        $Shell = $this->getMock('Cake\Console\Shell');

        $dispatcher->expects($this->at(1))
            ->method('_shellExists')
            ->with('TestPlugin.Example')
            ->will($this->returnValue('TestPlugin\Console\Command\TestPluginShell'));

        $dispatcher->expects($this->at(2))
            ->method('_createShell')
            ->with('TestPlugin\Console\Command\TestPluginShell', 'TestPlugin.Example')
            ->will($this->returnValue($Shell));

        $dispatcher->args = ['Example'];
        $result = $dispatcher->dispatch();
        $this->assertEquals(0, $result);
    }

    /**
     * Verify that in case of conflict, app shells take precedence in alias list
     *
     * @return void
     */
    public function testDispatchShortPluginAliasConflict()
    {
        $dispatcher = $this->getMock(
            'Cake\Console\ShellDispatcher',
            ['_shellExists', '_createShell']
        );
        $Shell = $this->getMock('Cake\Console\Shell');

        $dispatcher->expects($this->at(1))
            ->method('_shellExists')
            ->with('Sample')
            ->will($this->returnValue('App\Shell\SampleShell'));

        $dispatcher->expects($this->at(2))
            ->method('_createShell')
            ->with('App\Shell\SampleShell', 'Sample')
            ->will($this->returnValue($Shell));

        $dispatcher->args = ['sample'];
        $result = $dispatcher->dispatch();
        $this->assertEquals(0, $result);
    }

    /**
     * Verify shifting of arguments
     *
     * @return void
     */
    public function testShiftArgs()
    {
        $this->dispatcher->args = ['a', 'b', 'c'];
        $this->assertEquals('a', $this->dispatcher->shiftArgs());
        $this->assertSame($this->dispatcher->args, ['b', 'c']);

        $this->dispatcher->args = ['a' => 'b', 'c', 'd'];
        $this->assertEquals('b', $this->dispatcher->shiftArgs());
        $this->assertSame($this->dispatcher->args, ['c', 'd']);

        $this->dispatcher->args = ['a', 'b' => 'c', 'd'];
        $this->assertEquals('a', $this->dispatcher->shiftArgs());
        $this->assertSame($this->dispatcher->args, ['b' => 'c', 'd']);

        $this->dispatcher->args = [0 => 'a', 2 => 'b', 30 => 'c'];
        $this->assertEquals('a', $this->dispatcher->shiftArgs());
        $this->assertSame($this->dispatcher->args, [0 => 'b', 1 => 'c']);

        $this->dispatcher->args = [];
        $this->assertNull($this->dispatcher->shiftArgs());
        $this->assertSame([], $this->dispatcher->args);
    }
}